Koden Electronics RB715L MODEL RA41C RADAR User Manual USERS MANUAL

Koden Electronics Co., Ltd MODEL RA41C RADAR USERS MANUAL

USERS MANUAL

RA40C/RA41C/RA42CMarine RadarInstruction Manual1st Edition• Read this manual before using theequipment.Kthi l
IndexAAdjustmentDistance ............................... 75Angle.................................... 75Tuning ................................. 76Antenna height ..................... 77Automatic gain...................... 78Automatic STC...................... 78ALL PPI Screen .............................. 64ALL PPI/PPI Screen........................ 65BBearing scale ................................. 26Brightness..................................... 29Brightness of Panel ............... 29Buzzer........................................... 71CChanging setting (CUSTOM)............ 68Continual variable range (VAR RNG) 38,50Course error (XTE) ......................... 28Cross cursor (+).............................. 26DDisplay modes (MODE) ................... 38,52EEBL ............................................ 35,46Bearing of EBL (EBL BRG) ..... 71Echo Menu .................................... 56FFalse echoes .................................. 5FL VRM, FL EBL ............................ 36,47FTC ............................................ 33,57GGain ............................................ 32,56Guard zone (GZ)............................. 38,53Guard zone mode (GZ MODE) 73Guard zone level (GZ LVL)...... 73HHeading marker ............................. 6Heading Off (HDG OFF) ......... 38,49Heading blink (HM FLSH) ...... 71Heading information (HEAD) .. 28Hold (HOLD) .................................. 73LLanguage....................................... 73MMark Line...................................... 51Menu bar....................................... 45Man Over Board (MOB)................... 34MOB Screen .................................. 65Monitor operation (DISPLAY)........... 73NNav (Navigation) Menu.................... 52Navigation screen........................... 28North mark (NORTH M) .................. 6,71OOff-center (OFF-C) ..........................39,54Option............................................87PParallel cursor (///CSR)..................38,49PPI Screen......................................62PPI/NAV Screen .............................64PPI/PPI Screen ...............................63PPI/SEMI3D Screen........................63Pulse table (P TABLE)......................71RRadar interference ..........................6Radar screen..................................26,27Range ............................................ 31Range rings (RINGS) .......................38,50Range ring interval.................50Reverse screen ...............................42,66SSemi-3D.........................................43,63Sleep (SLEEP).................................54Speed (SPEED, SPD SET) ................73ST'BY ............................................29ST'BY NAV screen...........................71STC ............................................32,57Stern marker (STERN M).................71Stretch (ST)....................................41,58Switching the screen (SEL WIN) .......42,65System check ................................66TTarget (TARGET).............................51Track (TRACK)................................41,58Tune ............................................40,57Tune meter ...................................26VVAR RNG .......................................38,50VRM ............................................35,47Unit of VRM (RM UNIT) ..........71WWay point (WAYP) ...........................28Bearing of Way point (WP BRG)... 71XXTE ............................................28,44ZZoom (ZOOM) .................................41,59
iTo prevent the risk of personal injury or damage to the equipment, the followingsafety symbols are used to indicate safety-related information. Insure that you clearlyunderstand the meanings of the symbols BEFORE using the equipment.Symbols Used in ManualThis indicates a very dangerous procedure that could resultin serious injury or death if not performed properly.This indicates a hazardous procedure that could result inserious injury or death if not performed properly.This indicates a hazardous procedure or danger that couldresult in light-to-severe injury, or that might damage theequipment, if proper precautions are not taken.Safety Symbols Used on EquipmentThe following safety symbols are used inside or on the equipment near operation lo-cations to provide information about safety items and operation precautions. Insurethat you clearly understand the meanings of the symbols and take the necessary pre-cautions BEFORE using the equipment.This indicates high voltages with a risk of serious electric shock if the partis touched. NEVER touch the part with bare hands, etc.The symbol prohibits the operation shown inside the symbol. (The ex-ample in the left prohibits disassembly.)The symbol indicates that the operation inside the symbol is potentiallyhazardous. (The example on the left indicates that the plug should be heldwhen disconnecting it from the AC outlet.)This indicates the ground (earth) terminal. If the equipment cannot begrounded via the power cord, connect this terminal to ground. There is arisk of serious electric shock if the equipment is not grounded.RA40C/RA41C/RA42CMarine RadarInstruction Manual21st Jul. 2000 (1st Edition)Document: E-A40C/41C/42C-2-00Safety SymbolsDANGER!WARNING!CAUTION!
ii•DO NOT OPEN THE COVER EXCEPT SERVICE PERSONNEL. YOU MAY GET AN ELECTRIC SHOCK.•SWITCH OFF SHIPS MAIN AND PULL OFF MOTOR FUSE BEFORE MAINTENANCE. ROTATING ANTENNA MAY HIT YOU.• KEEP OFF DURING TRANSMISSION. RADIATION LEVEL: 100W/m2 DISTANCE : 0.8m RADIATION LEVEL: 10W/m2 DISTANCE : 8m• DO NOT DROP COVER. IT MAY HIT SOMEBODY.• •••••••••••••••••••••• •••••••••••••• •••••••••••••••••••••••• •••••••• •••••••••••••••••••••••••• ••••••••••••••• ••••• : 100W/m2 •• : 0.8m ••••• : 10W/m2 •• : 8m• •••••••••••••••••• ••••••••••••DO NOT PAINT THE RADOME. PERFORMANCE WILL DOWN.• •••••••••••••••••••• •••••••• WARNING and CAUTION for Scanner Unit and Antenna ;!There is a risk of receiving electric shock if these parts are touched byaccident. Only qualified personnel should remove covers on theseparts."To avoid accidental antenna rotation, turn off ship’s main and pull offout the motor fuse during repair inspect, or maintenance.When repairing or inspecting the scanner unit wear a safety harnessand provide a secure platform so that there is no danger of falling evenwhen the vessel lists or when there is an unexpected incident such asan earth quake.#Do not approach the antenna while it is transmitting.In addition, at inspection never look into the wave guide during trans-mission.$When remove the scanner cover etc., do not drop it. It may endangerpeople below.%Do not paint the RADOME. Antenna performance will be down.For SafetyWARNING / • •CAUTION / • ••••••
iii • SEE INSTRUCTION MANUALS BEFORE CONNECTING POWER. SAFETY INFORMATION IS WRITTEN IN. • EARTH CONNECTION ESSENTIAL BEFORE CONNECTING POWER. YOU MAY GET AN ELECTRIC SHOCK. • DO NOT OPEN THE COVER EXCEPT SERVICE PERSONNEL. HIGH VOLTAGE IS INSIDE. YOU MAY GET AN ELECTRIC SHOCK. • ••••••••••••• •••••••••••• •••••••••••••• • •••••••••••••• ••••••••• •••••••••••• • ••••••••••••• •••••••••• •••••••••••••• ••••••WARNING for Display Unit ;!See instruction manuals before connecting power. Safety information iswritten in. "Earth connection essential before connecting supply.There is a risk of serious electric shock if the equipment is notgrounded.#There is a risk of receiving electric shock if these parts are touched byaccident.Only qualified personnel should remove covers on these parts.WARNING / • ••••
ivInstallationRadio laws dictate that this radar may only be installed by properly licensed personnel.LicensingYou must obtain a license as prescribed by the Radio Law to operate this unit.To Customers* To use this equipment effectively, the operation and maintenance procedure in this manualmust be followed properly. Note that this equipment is only a navigational instrument hav-ing no warrant for navigation safety. Non-execution of fundamental navigation require-ments such as the ship location check or lookout is not allowed.* If some abnormality occurs in this equipment, immediately turn off the equipment POWERswitch and the radar main switch in the power distribution board and notify our mainte-nance section or dealer.* This instrument uses oscillator and LCD backlight. They are easy to be broken. Do notsubject the instrument to excessive force or drop it.* The mercury (Hg) is used in LCD backlight. When you discard your radar, it is due to lawsor regulations of your nations.
ContentsFor safetyCHAPTER 1 OVERVIEW .................................................................... 11.1 Introduction.................................................................................................11.2 Organization of This Manual....................................................................... 1CHAPTER 2 USING RADAR FOR THE FIRST TIME.............................. 22.1 What is a radar ? .........................................................................................22.2 Characteristics of Radar Wave .................................................................... 32.3 Terms Specific to Radars............................................................................. 6CHAPTER 3 INSTALLATION............................................................... 103.1 Checking Contents of Your Package ........................................................... 103.2 Checking Power Supply Voltage.................................................................. 11 3.2.1 Power Supply Requirement....................................................................12 3.2.2 Fuse Replacement ..................................................................................123.3 Determining Place of Installation................................................................12 3.3.1 Scanner unit........................................................................................... 12 3.3.2 Display unit ............................................................................................12 3.3.3 Shifting away from obstacles ................................................................. 133.4 Installing Scanner Unit ............................................................................... 143.5 Installing Antenna Unit............................................................................... 153.6 Installing Display Unit................................................................................. 163.7 Connecting Cables....................................................................................... 17 3.7.0 Interconnecting cable (RA40C Radomescanner)............................................17 3.7.1 Interconnecting cable (RA41C Radome scanner) ..................................17 3.7.2 Interconnecting cable (RA42C Open scanner)....................................... 20 3.7.3 Grounding wire....................................................................................... 21 3.7.4 Power supply cable .................................................................................223.8 Adjustment .................................................................................................. 223.9 Connecting External Equipment to Display Unit .......................................233.10 Countermeasure for Electromagnetic Interference .................................. 233.11 When Discarding Your Radar.................................................................... 24CHAPTER 4 FUNCTIONS AND NAMES ............................................... 254.1 Key layout .................................................................................................... 254.2 Rear panel.................................................................................................... 264.3 Radar screen (Single screen) ....................................................................... 264.4 Radar screen (Dual screen) .........................................................................274.5 Radar screen (All PPI screen) ......................................................................274.6 Radar screen (All PPI/PPI screen) ............................................................... 284.7 Navigation screen ........................................................................................ 28CHAPTER 5 OPERATION ................................................................... 29Basic operation of Radar ...................................................................................295.1 Powering On and Off.................................................................................... 295.2 Adjusting brilliance of screen and key-backlight........................................295.3 Basic Operations ......................................................................................... 30
5.3.1 Powering On and Off...............................................................................30 5.3.2 Transmitting ...........................................................................................30 5.3.3 Adjusting brilliance of screen and key-backlight...................................31 5.3.4 Changing Distance Range (RANGE UP, RANGE DOWN) .......................31 5.3.5 Automatic adjustment (AUTO) ...............................................................31 5.3.6 Sensitivity adjustment (GAIN) ................................................................ 32 5.3.7 Removing sea clutter (STC)..................................................................... 32 5.3.8 Removing rain and snow clutter (FTC)................................................... 33 5.3.9 Man Over Board (MOB) ..........................................................................345.4 Functions of Soft Keys .................................................................................35 5.4.1 Bearing measurement (EBL1).................................................................35 5.4.2 Bearing measurement (EBL2).................................................................35 5.4.3 Distance measurement (VRM1) ..............................................................35 5.4.4 Distance measurement (VRM2) ..............................................................36 5.4.5 Measuring the angle between two points (FL EBL2)..............................36 5.4.6 Measuring the distance between two points (FL VRM2)........................36 5.4.7 Changing the group of Soft Keys(NEXT).................................................37 5.4.8 Erasing heading maker temporarily (HDG OFF)....................................38 5.4.9 Using parallel cursors (///CSR).............................................................38 5.4.10 Establishment of the indication of the RANGE RINGS (RINGS)..........38 5.4.11 ON/OFF of variable range function (VAR RNG) ...................................38 5.4.12 Changing display modes (MODE).........................................................38 5.4.13 Guard Zone (GZ) ...................................................................................38 5.4.14 Off Center (OFF-C)................................................................................39 5.4.15 Setting of the SLEEP function(SLEEP) .................................................40 5.4.16 Tuning adjustment (TUNE)...................................................................40 5.4.17 Echo expansion (ST) .............................................................................41 5.4.18 Displaying locus of target (TRACK) ......................................................41 5.4.19 Enlarging selected areas (ZOOM) .........................................................41 5.4.20 Increasing sensitivity (S/L)...................................................................42 5.4.21 Switching the screen (SEL WIN)...........................................................42 5.4.22 Changing the color of screen (PICTURE)..............................................42 5.4.23 Change to PPI screen (PPI)....................................................................43 5.4.24 Change to SEMI3D/PPI screen (SEMI3D)............................................43 5.4.25 Change to PPI/PPI screen (PPI/PPI).....................................................43 5.4.26 Change to PPI/NAV screen (PPI/NAV) .................................................44 5.4.27 Change to ALL PPI screen (ALL PPI).....................................................44 5.4.28 Change to ALL PPI/PPI screen (ALL PPI2)............................................445.5 MENU Operation..........................................................................................45 - List of MENU.................................................................................................45 5.5.1 Mark Menu..............................................................................................46 5.5.1.1 Bearing measurement (EBL1) ............................................................46 5.5.1.2 Determining the distance (VRM1) ......................................................47 5.5.1.3 Bearing measurement (EBL2) ............................................................47 5.5.1.4 Determining the distance (VRM2) ......................................................47 5.5.1.5 Measuring the distance or angle between two points ( FL EBL2, FL VRM2 )....................................47 5.5.1.6 Measuring the angle between two points (FL EBL2)..........................48 5.5.1.7 Erasing heading maker temporarily (HDG OFF) ...............................49 5.5.1.8 Using parallel cursors (///CSR) ........................................................49 5.5.1.9 Establishment of the indication of the RANGE RINGS (RINGS) .......50 5.5.1.10 Variable range function ( VAR RNG ) ...............................................50 5.5.1.11 Output the position data of Cursor (TARGET).................................51 5.5.1.12 Follow the Distance and Bearing marker on the cursor (+MK LINE) 51
5.5.2 Nav (Navigation) Menu ............................................................................ 52 5.5.2.1 Changing display mode (MODE).......................................................52 5.5.2.2 Guard Zone (GZ) ................................................................................ 53 5.5.2.3 Shifting display in specific direction (OFF-C).................................... 54 5.5.2.4 Setting of the SLEEP function(SLEEP) .............................................. 545.5.3 Echo Menu................................................................................................56 5.5.3.1 Sensibility adjustment (GAIN) ........................................................... 56 5.5.3.2 Removing sea clutter (STC)................................................................57 5.5.3.3 Removing rain and snow clutter (FTC)..............................................57 5.5.3.4 Adjusting receiver tuning (TUNE) ...................................................... 57 5.5.3.5 Echo expansion (ST)........................................................................... 58 5.5.3.6 Displaying locus of target (TRACK)....................................................58 5.5.3.7 Enlarging selected areas (ZOOM) ......................................................59 5.5.3.8 Increasing sensitivity (S/L) ................................................................ 60 5.5.4 SETUP Menu .......................................................................................... 61 5.5.4.1 Initiating the screen display (WINDOW)............................................61 - Limitation of screen operation.....................................................................62 - Screen modes and Operations .....................................................................62(a) PPI Screen ......................................................................................... 62(b) PPI/SEMI3D Screen.......................................................................... 63(c) PPI/PPI Screen .................................................................................. 63(d) PPI/NAV Screen ................................................................................ 64(e) ALL PPI Screen .................................................................................. 64(f) ALL PPI/PPI Screen............................................................................ 65(g) MOB Screen....................................................................................... 65 5.5.4.2 Switching screens on PPI/PPI screen (SEL WIN) ..............................65 5.5.4.3 Changing the color of screen (PICTURE) ........................................... 66 5.5.4.4 Fault Diagnosis by Self Check (SYSTEM CHECK)............................. 66 5.5.4.5 Changing the content of the setting (CUSTOM) ................................ 68 5.5.4.5.1 Changing the settings of soft keys (KEY ASSIGN).........................69 5.5.4.5.2 Changing the content of settings 1(PRESET1) .............................. 71 5.5.4.5.3 Changing the content of settings 2 (PRESET2) ............................. 73 5.5.4.5.4 Changing the content of settings (ADJUSTMENT) .........................75(1) Adjusting distance (TIMING ADJ) ...................................................75(2) Adjusting angle (HEAD ADJ) ...........................................................75(3) Adjusting tuning circuit (TUNING CAL) ..........................................76(4) Adjusting antenna height (ANTENNA).............................................77(5) Setting GAIN circuit (GAIN) .............................................................78(6) Setting STC circuit (STC).................................................................78CHAPTER 6 MAINTENANCE AND INSPECTION................................... 79CHAPTER 7 TROUBLESHOOTING......................................................817.1 Fault Diagnosis by Self-check .....................................................................817.2 Inspecting Each Part ...................................................................................82CHAPTER 8 PRODUCT SPECIFICATIONS........................................... 838.1 General..........................................................................................................838.2 Scanner Unit .................................................................................................858.3 Display Unit ..................................................................................................85
8.4 External Interface ........................................................................................ 868.5 Standard set ................................................................................................. 878.6 Options ......................................................................................................... 878.7 External dimensions and weight ................................................................. 878.8 External connection and function ............................................................... 87APPENDIX1. RA40C GENERAL SYSTEM DIAGRAM2. RA41C GENERAL SYSTEM DIAGRAM3. RA42C GENERAL SYSTEM DIAGRAM4. RA40C INTERCONNECTION DIAGRAM5. RA41C/42C INTERCONNECTION DIAGRAM6. OUTLINE DRAWING DISPLAY UNIT7. RA40C OUTLINE DRAWING SCANNER UNIT8. RA41C OUTLINE DRAWING SCANNER UNIT9. RA42C OUTLINE DRAWING SCANNER UNIT 10. FLUSH MOUNT PROCEDURE 11. INDEXRA40C TEMPLATE OF SCANNER MOUNTING HOLES (ACTUAL SIZE) RA41C TEMPLATE OF SCANNER MOUNTING HOLES (ACTUAL SIZE)
1CHAPTER 1 OVERVIEW1.1 Introduction The RA40C/41C/42C represents a compact, high-performance color marine radarthat delivers a peak power output of 2 kW(RA40C) or 4 kW(RA41C/42C) from the an-tenna and uses an 10-inch color liquid crystal display.In addition to a microcomputer, it incorporates a video signal processing LSI and anewly developed LSI chip exclusively designed for radars, thus providing versatile func-tionality and high performance.Features1. A thin display unit incorporating a liquid crystal display.2. Easy operation using only a few keys and menu screens.3. A position of key and its function can be set in position ( Selectable soft func-tion key).4. Easy operation by the rotary knob. Gain, STC, FTC, EBLs, VRMs etc. can be controlled by the rotary knob.5. A short and a long range echo can be seen at a time ( Dual range radar).6. Semi-3D screen display for easy identification of targets in noise.7. Capable of continuous distance range changes (Continual variable range).8. Waterproof construction of display allows installation at any desired location.1.2 Organization of This Manual This manual provides a wide range of information necessary to operate theRA40C/41C/42Cradar ranging from the basic knowledge on radars to the methods of operating, installing,and maintaining the radar. The manual also provides rather detailed technical informa-tion on how to adjust video display to obtain clear images. You are requested to read thismanual thoroughly from beginning to end in order to understand the various functions ofthe radar so you can take full advantage of its advanced functions. If you are using aradar for the first time, refer to the basic data on radars in CHAPTER 2.This manual consists of the following chapters:USING RADAR FOR THE FIRST TIME ...................... CHAPTER 2INSTALLATION ...................... CHAPTER 3FUNCTIONS AND NAMES ...................... CHAPTER 4OPERATION ...................... CHAPTER 5INSPECTION AND MAINTENANCE ...................... CHAPTER 6TROUBLESHOOTING ...................... CHAPTER 7PRODUCT SPECIFICATIONS ...................... CHAPTER 8If you are an experienced user of radars, skip CHAPTER 2 and begin from CHAPTER3.
2CHAPTER 2. USING RADAR FOR THE FIRST TIMEThis chapter describes basic information on radars and explains technical terms usedin radar operation for those who is using a radar for the first time.2.1 What is a radar ? A marine radar is one of the navigation equipment installed on a ship. It emits a radiowave in very high frequency called a microwave from its antenna and receives the reflectedradio wave from objects on the sea (e.g., other ships, buoys, and lands). The received radiowave is converted into an electric signal which is displayed on a display screen to indicatethe presence of such objects. Although it is very difficult to find other ships or the destina-tion coast with human eyes at night or in thick fog, a radar helps you detect objects on thesea helping you avoid danger when sailing. The antenna turns 360 degrees as it radiateswaves, allowing you to grasp ambient conditions around your ship at a glance.The radio wave radiated from the antenna is called a pulse wave and the radar performstransmission and reception alternately. Several hundred to several thousand pulse wavesgenerally are transmitted while the antenna rotates one turn.AntennaThere are many types of antennas generally used for aradar. For example, these include a parabolic antenna anda slotted-array antenna. The performance of the antennadetermines that of the radar. The dominant factors are theantenna's beam width and side lobe level. The narrowerthe beam width, the higher the resolution of the angledirection. The lower the side lobe level, the fewer the effectof a false echo.Side lobeA beam in one direction in which the strongestradio wave is radiated from the antenna is called themain lobe and beams in other directions are called"side lobes". The side lobe level refers to the differ-ence in level between the largest side lobe and themain lobe. Buoy Other ship Radar wave Your ship Antenna (Rotating) Radar display Fig.2-1 What is a radar? Beam width Side lobe level Main beam Side lobe Antenna Fig.2-2 Antenna pattern
3Beam widthA beam width is defined as the width of the main lobe at an angle where the radi-ated power is halved as measured from the position from which the strongest radiowave is radiated.2.2 Characteristics of Radar Wave Radio waves from the radar propagate while bending slightly along the terrestrial sur-face. This characteristic varies dependent on the density of the atmospheric air. The sightdistance D of a radar generally is said to be approximately 6% longer than the optical sightdistance and is calculated using the equation below : D (NM) = 2.22 ( h1 + h2 ) where, h1= antenna height in metersh2= target height in metersFig.2-3 Radar waveTargets difficult to display on screenThe intensity of the reflected wave from a target depends on the distance, height,and size of the target, as well as its material and shape. Targets constructed withFRP, wood, or other low-reflectance materials or those that have a small incident angleare difficult to display on a screen. Therefore, FRP and wooden ships, sandy beaches,and sandy or muddy shallows all are difficult to catch and require attention whenmonitoring on the screen. Especially, coast lines on the radar image appear to be pre-sent more apart from the ship than they are actually located. Therefore, it is importantnot to misinterpret the available data.Shadow zones of radarRadar waves are characteristic in that they propagate straight ahead. Therefore,if the ship's smokestack or mast is located near the antenna or there is a tall ship ormountain at the side of the ship, such an object generates a shadow behind it. In this Apparent coastline Actual(invisible) coastline Invisible Visible 3 1 HU Fig.2-4 Targets difficult to display on screenh1 h2Line of sightRadar Radio WaveEarth
4case, some objects produce a complete shadow and some produce a partial shadow. Inan extreme case, the shadow of an object may extend to a position far away and can-not be displayed on the screen at all. Since these shadows can be discovered when in-stalling an antenna, the problem can be avoided by changing the place of antenna in-stallation to minimize the shadow. Targets in shadow zones are difficult to display onthe screen.False echoesA false echo of an actually nonexistent object may sometimes appear on thescreen when sailing. The following explains the cause of each of such phenomena.A. Ghost echoesIt sometimes happens that one large object near the ship appears at two differentbearings. One is the actual echo and other is a ghost echo generated as the wave is re-reflected from the ship's own smokestack or mast. The former appears at the correctdistance and bearing on the screen and the latter appears behind the smokestack ormast. This type of false echo is also generated by re-reflection of waves from bridgesand quay walls other than the ship itself.B. Multiple echoesIf there is a large vertical reflecting plane near the ship as in the case when yourship passes alongside a large ship, the wave is repeatedly reflected back and forthbetween your ship and the other object. For this reason, two to four images appear onthe screen at equal intervals in the same bearing. A false echo that is generated bysuch multiple reflections is called multiple echoes. In this case, an image appearing atthe nearest position is the real echo. Multiple echoes disappear as the ship movesaway from the reflecting object or its bearing changes. Therefore, it is not difficult todetermine the correct image. Target Direct reflection path Secondary reflection path Mast etc. Real echo Ghost echo Direction of ghost echo 3 1 HU Fig.2-5 False echoes of radar (Ghost echoes)
5C. False echoes caused by side lobeThe radiant beam emitted from an antenna contains side lobes in directions otherthan that of the main beam. Since the side lobe level is low, it in no way affects distanttargets. However, if there is a strong reflecting target near the ship, it sometimes ap-pear as a circular-arc false echo on the screen.When located near large targets such as land, theship's mast, etc. sometimes appears as a falseecho of circular-arc shape. 3 1 HU Real echo Multiple echoes Fig.2-6 False echoes of radar (Multiple echoes) 3 1 HU Antenna Main beam Side lobes Real echo False sidelobe echoes Fig.2-7 False echoes of radar (Caused by side lobe)CAUTION!
6D. Distant false echoes caused by duct phenomenonDepending on meteorological conditions, duct phenomenon sometimes occurs intemperature inverting layers of air. In such a case, the wave propagates erraticallyreaching a location surprisingly far away from the ship. In this case, a target presentat a distant location more than the radar's maximum distance range appears on thescreen presenting a false echo that can be misunderstood to be present nearer thanthe actual position. This phenomenon is attributed to the fact that since echo from thedistant target arrives late, it gets out of the pulse repetition frequency and is displayedon the screen as an echo in the next frequency. If the target distance changes as youswitch over the distance range, you can determine that it is a false echo.Radar interferenceIf a radar operating in the same frequency exists nearyour ship, interference noise may appear on the screenthat is caused by transmitted waves from that radar. Thisinterference appears in various ways. In most cases, how-ever, it appears as spiral or radial patterns.The RA40C/41C/42C radar has a function to elimi-nate interference. Use of this function helps you minimizeinterference.2.3 Terms Specific to Radar HM (Heading Marker)This is a line-shaped marker used to indi-cate the advancing direction of your ship.North MarkThis marker indicates the north direction.It is a short line approximately 1/6 of thescreen size. 3 1 HU Radar inrterference Fig.2-8 Radar interfer-ence 0.75 0.25 HU HM(Heading Marker) North Mark Fig.2-9 Heading Marker and North Mark
7Display modesThis refers to a radar's display modes. There are four display modes depending on thedirection in which the top of the screen faces with respect to the ship.Head Up (HU)In this mode, the ship's heading always indicates the upward direction of thescreen. This mode lets you know the relative positions of your ship and other ships orland.North Up (NU)In this mode, the north direction always indicates the upward direction of thescreen, allowing you to compare your ship position with a marine chart as you navi-gate.Course Up (CU)The ship's heading in a course-up mode always indicates the upward direction ofthe screen as the bearing toward the destination. In this mode, the ship can be ma-neuvered to sail the shortest distance to the destination by steering it in such a waythat its heading marker always directs to the upward direction of the screen. If theship drifts due to tidal current, care must be taken because the fixed targets move toother positions.True Motion (TM)In this mode, the ship is displayed as if it is moving on a marine chart while thefixed targets such as islands and seashores are fixed in position. When the shipreaches a certain position on the screen (approx. 2/3 of screen size), the ship is placedback to the opposite side on the screen. (The top of the screen faces north.)Note: Navigation equipment such as a gyrocompass or magnet compass must be con-nected to your radar system before it can be operated in NU, CU, and TM modes.(Refer to Section 3.9 for details on how to connect your radar to navigation equip-ment.) Ship's Heading North Scheduled course HM EBL North mark HU NU CU TM Ship's locus (not displayed on screen) North North Scheduled course 0.75 0.75 0.75 0. 25 TM 0.25 CU 0.25 NU 0. 25 HU 0.75 Fig.2-10 Display modes
8VRM (Variable Range Marker)This is a circular-shaped marker whose size can be changed as desired. You can usethis marker when you want to examine the distance of an echo from your ship.When measuring the distance of an echo from your ship, be sure to measure at apoint close to the center of the echo image on the screen.EBL (Electronic Bearing Line)This is a marker shaped like a straight line segment that can be changed to any direc-tion centering around the ship position. Use this marker to examine the advancing direc-tion of your ship and its relative angle with an echo. When measuring the angle of an echo,position the marker at the center of the echo. VRM Echo 0.75 0.25 HU VRM Fig.2-11 VRM 0.75 0.25 HU EBL Echo EBL Equal intervals Fig.2-12 EBL
9STC (Sensitivity Time Control)Since echo signals received by the radar are strong when they are coming from a shortdistance, it is difficult to compare signal strength between each reflected signal. To over-come this difficulty, signal strength is adjusted in such a way that the received signal levelscoming from a short distance are lowered and those from a long distance are raised. Thisfunction should prove useful when there are large reflected waves from sea surfaces duringrough weather.FTC (Fast Time Constant)When it rains or snows, fine noise may appear over the entire screen, making it diffi-cult to identify echoes. In such a case, echo images on the screen can be made easily distin-guishable by adjusting FTC. 0.75 0.25 HU STC OFF STC ON 0.75 0.25 HU Echo is suppressed around center Fig.2-13 STC0.750.25HUFTC OFF FTC ON0.750.25HUSmall noisesare reduced.Fig.2-14 FTC
10CHAPTER 3. INSTALLATIONThis chapter describes procedures for installing the RA40C/41C/42C radar in yourship and precautions to be observed during installation. Follow the procedure below to in-stall the radar.3.1 Checking Contents of Your Package First, unpack your package and see if all of the following items are included.RA40C RA41C RA42CItem Q'TY Q'TY Q'TYDisplay unit 1 (RF719A) 1 (RF719A) 1(RF719A) Scanner unit 1 (RB714A) 1 (RB715A) 1(RB716A) Display cover 1 1 1Fuse 2 2 4Interconnecting cable 1 (10 m) 1 (10 m) 1 (10 m)Power supply cable 1 (2 m) 1 (2 m) 1 (2 m)M10 hexagonal bolt 4 sets 4 sets 0M12 hexagonal bolt 0 0 4 setsCarbon brush 0 0 2 Checking contents of your package Checking power supply voltage Determining place of installation Installing scanner unit Installing display unit Connecting cables Adjustment Connecting external equipment When discarding Your radar
11The package contains a 10m interconnecting cable as an accessory. Longer cable isalso available as an option as listed in Tab.3-1.Tab.3-1 Optional Interconnecting CableIn addition to the above components included with your package, the following itemsare also required. Please prepare them separately.Item QTY RemarksTapping screw or M5 bolt and nut 6 sets To install display unitGrounding wire 1 Earth line for display unitGrounding wire and crimp terminal 1 set Earth line for scanner unit3.2 Checking Power Supply Voltage 3.2.1 Power Supply RequirementsFor the RA40C/41C/42C radar to be operated normally, the power supply (battery)detailed in Tab.3-2 is required. Note also that if the battery is discharged, its voltage mayfluctuate greatly, causing the radar to malfunction. When start up the radar system or starttransmitting, an additional rush current is required on the power line. Carefully check thepower supply system including wiring by using a circuit tester.Tab.3-2 Power Supply Requirements*A.C. power cannot be used3.2.2 Fuse ReplacementFor the RA40C/41C/42C radar to be operated safely, proper rating fuses must beused. Tab.3.3 and Tab.3.4 are fuse rating tables for RA40C/41C and RA42C. Check themand replace to the fuse in the package.Tab.3-3 Supply Voltage to Fuse Table for RA40C/41CTab.3-4 Supply Voltage to Fuse Table for RA42CRA40C RA41C RA42CCable length Product No. Product No. Product No.15m 242J160680B 24Y159099B 24Y159169B20m 242J160680C 24Y159099C 24Y159169C25m 24Y159099D 24Y159169D30m 242J160680DSupply voltageused Maximum current Allowable range of voltageDC12V 5A 10.2-41.6VDC24V 2.5A 10.2-41.6VSupply voltageused Main Fuse Motor FuseDC12V 8A/250V or 125V *(6.3• x 32mm) T3.15A/250V or 125V *(5• x 20mm)DC24V 8A/250V or 125V(6.3• x 32mm) T3.15A/250V or 125V(5• x 20mm)
12•••Note: Marked * fuses are in the set as standard.3.3 Determining Place of Installation 3.3.1 Scanner unitA radar's target detection capacity varies greatly depending on the fitted position of thescanner. An ideal fitting position is a location high above the ship's keel line where there isno obstacle all around the scanner. In an actual ship, such an ideal location is limited byvarious factors. Therefore, consider the following suggestions when you determine the placeto install the scanner:(a) Install scanner at a position as high as possible.The higher the installation position, the longer the radio ranging distance.Install the scanner at a position as high as possible after considering the ship'shull structure and radar maintainability.(b) Install scanner away from smoke-stack and mastIf the scanner is installed at the same height as the smoke-stack or mast,radar waves may be blocked, creating shadow zones or generating false echoes.Therefore, do not install the scanner at such a position.(c) Install scanner forward away from obstacle.To avoid creating shadow zones or generating false echoes, install the scan-ner at a position nearer to the ship's bow away from obstacles. When installingthe scanner on a mast, position it in front of the mast. (If obstacles cannot beavoided for the ship's structural reasons, refer to "Shifting away from obstacles"described Page 13.)(d) Do not install the scanner near hot or heat-generating items.Do not install the scanner at a position where it may be subjected to smokeor hot air from smokestacks or heat from lamps.(e) Install the scanner away from antennas of other equipment.Install the scanner as much away from the antennas of a direction finder,radio transceiver, etc. as possible.To eliminate the interference, install the scanneraway from the antenna of radio transceivers.(f) Make the cable length as short as possible.Keep the distance from the scanner to the display unit within the standardcable length of 10 m. If you use longer cable for unavoidable reasons, limit thecable length to a maximum of 30 m for RA40C and 100 m for RA41C/42C.3.3.2 Display unitThe display unit can be installed on desktop, wall surface, or ceiling. Determine theplace to install the display unit that is convenient for navigation and radar operation afterconsidering the following suggestions:Supply voltageused Main Fuse Motor FuseDC12V 10A/250V or 125V(6.3• x 32mm) 5A/250V or 125V(5•x 20mm)DC24V 8A/250V or 125V *(6.3• x 32mm) T3.15A/250V or 125V *(5• x 20mm)!CAUTION
13(a) A place where you can see the ship's bow when you raise your face from theradar screen.(b) A place where there is no direct sun-light to avoid display temperature up.(c) A place where there is good ventilation and minimum vibration.(d) A place where the display unit is apart more than the minimum safe dis-tance from a magnet compass as listed in Tab.3-5 below.Tab.3-5 Minimum Safe Distance from Magnetic Compass3.3.3 Shifting away from obstacles!!!! Shifting from keel lineBy shifting the scanner position from the keel line to the starboard side ofthe ship, it is possible to move shadow zones to the port side which makes itpossible to keep clear vision in the bow direction. The distance to be shifted canbe obtained by calculation depending on the distance from the scanner to obsta-cles using the following equation:Ls=0.4R+D/2 [m] (when R<15m)Ls=0.025R+D/2 [m] (when R>=15m)where Ls = distance to be shifted from keel lineD = diameter of obstacle on keel lineR = distance from scanner to obstacle"""" Obtaining sufficient dip angleRaise the scanner position so that there is a sufficient dip angle θ availablebetween the line of sight from the scanner to the obstacle and the horizontalline. By raising the dip angle above 5°, it is possible to prevent mid- and long-distance shadow zones. The radar cannot detect objects below the line of sight.Master compass Steering compassScanner unit 2.0m 1.4mDisplay unit 2.0m 1.4m Ls R D Scanner Unit Obstacle Keel line Fig.3-1 Shifting from keel line
14 Horizontal line Line of sight θ Fig.3-2 Obtaining sufficient dip angle
153.4 Installing Scanner Unit When you have decided the place of installation, install the scanner unit. If a mountbase like the one shown below is available, it may be easier to install the scanner. If such amount base is not available in your ship, you may install the scanner directly to the roof,etc. In such a case, pay attention to the water drain tube located at the bottom of the scan-ner unit during installation.Note : When the radar mast or mounting bracket has a curvature of more than 2mm, repairit or use spacers.Referring to Fig.3-4, open holes in diameter of 12 mm (0.47 in.) at five locations in themount base and use these holes to fix the scanner unit to the mount base with hexagonalbolts. (Use the template included with this manual.) The bolts included with your radarequipment will suffice for mount base thickness of 9 to 14 mm (0.35 to 0.55 in.). If themount base is thicker or thinner than this, prepare bolts listed in Tab.3-6.Use sealing of silicon when you prevent the bolts from becoming loose. Radome may bebroken if you use locking putty. Do not use an edge that might trap water. Fig.3-3 Mount base Center 214 170 12φ × 4 Unit:mm 65 Forward (8.43 in.) (2.56 in.) (0.47 in.) 35 (1.38in.) For air tube (6.69 in.) 15φ (0.59 in.) 199 (7.83 in.) Forward 185 (7.28 in.) Rotation Radius R550 (3 ft antenna) R700 (4 ft antenna) 14φ × 4 (0.55 in.) Cable inlet 100φ (3.97 in.) RA41C Radome scanner RA42C Open scanner Fig.3-4 Hole positions for mounting scanner
16Tab.3-6 Bolts for Mounting Scanner Unit3.5 Installing Antenna Unit Center 140 140 12φ × 5 60 Forward (5.51 in.) (2.36 in.) (0.47 in.) 30 (1.18in.) For air tube (5.51 in.) ••••••RA40C • Radome scanner Center 214 170 12φ × 4 Unit:mm 65 Forward (8.43 in.) (2.56 in.) (0.47 in.) 35 (1.38in.) For air tube (6.69 in.) 15φ (0.59 in.) 199 (7.83 in.) Forward 185 (7.28 in.) Rotation Radius R550 (3 ft antenna) R700 (4 ft antenna) 14φ × 4 (0.55 in.) Cable inlet 100φ (3.97 in.) RA41 Radome scanner RA42 Open scanner Fig.3-4 Hole positions for mounting scanner Fix four screws Mount base Washer Spring washer M10 Hexagonal bolt Radome(bottom) Chassis Included Fix four screws RA40C/41C Radome scanner RA42C Open scanner Double nuts Spring washer Washer M12 Hexagonal bolt Mount base Scanner base Fig.3-5 Fixing Scanner UnitThickness ofmount base Bolts necessary tofix radome scanner Material Remarks1-4mm(0.04-0.16 in.) M10/M12 × 15 (1.5mm pitch) Stainless4-9mm(0.16-0.35 in.) M10/M12 × 20 (1.5mm pitch) Stainless9-14mm(0.35-0.55 in.) M10/M12 × 25 (1.5mm pitch) Stainless Included with radar14-19mm(0.55-0.75 in.) M10/M12 × 30 (1.5mm pitch) Stainless
17Remove the protective cap covering the rotary coupler on the top of the scanner. Matchthe antenna radiation direction to direction of the arrow markings on the rotation base andfix the antenna in position using the four M8 accessory bolts.3.6 Installing Display Unit After you have finished installing the scanner unit, install the display unit in the sameway. Choose the proper bolt length according to the thickness of the surface on which youare going to install the display unit. Hole diameter is different using bolts from using tap-ping screw. When using tapping screw, open holes in adequate holes. When using bolts andnuts, open holes in diameter of 6 mm (0.24 in.). When you have opened holes, install thepedestal part first and then the display unit.Note : When you install the display by flush mount, refer to appendix "OUTLINE DRAWING".Slide off four triangle corner cover, and fix the display unit to the panel with screws. Afterfixing the display unit, put on corner covers to the corner of the display unit. See APPENDIX. 360 84 Fitting hole (14.17 in.) (3.31 in.) Hole diameter 6mm : Bolts and Nuts Adequate : Tapping screws Recommended screw M5 or equivalent Unit : mm 47 (1.85 in.) 37 (1.46 in.) 60 (2.36 in.) 240 (9.45 in.) 60 (2.36 in.) Forward Fig.3-6 Hole positions for display unitAntenna radiation surfaceArrow
18Avoid a display from operating under direct sun-light. It becomes high temperature at inside of dis-play and display may be broken.!WARNING
193.7 Connecting Cables Lay cables firmly in place by following the instructions below.Note1: Do not bind the cable for the radar collectively with cables of otherequipment (especially power supply cable).Note2: Leave clearance near the inlet of the display so you can remove the dis-play unit easily. This facilitates installation and maintenance of the dis-play unit. (Refer to Appendix.)Note3: Because the cable has a connector fitted on the display and scanner side,if it is necessary to pass cable through a narrow path, fix the scanner-sideconnector vertically using vinyl tape before passing cable through thepath.Note4: Lay cable along the ship's hull or wall surface and attach it in place atintervals of about 40 cm.3.7.0 Interconnecting cable (RA40C Radome scanner) (See Fig.3-8-1)!Ensure that the radar is off. Connect the cable to the receptacle labeled "SCANNER"on the rear panel of the display unit."Next, remove the upper part of the radome from the scanner unit. Avoid bumping itagainst the antenna by lifting vertically. (There are three fixing screws.)#Remove the tape fixing the antenna.$Remove the shield cover located on the astern side. (There are three fixing screws.)%Remove the cable clamping plate and rubber ring, pass cable through the introduc-tion opening, put the rubber ring from both ends of it, and clamp the cable to thescanner unit with screws via the fixing plate. Plug the connector fitted to the cableinto the X1 connector on the PCB.&Replace the aluminum cover. At this time, attach a cable shield onto a ditch withthe aluminum cover. However, be careful that the cable will not be caught up be-tween the main unit and cover.•• ' Replace the upper part of the radome. Be careful not to bump it against the antennain the same way as when removing it. Make sure that the cover is fitted in the correctdirec- tion as shown in Fig.3-7-1. The upper and lower parts of the radome each havethree markings indicating screw positions. Align the upper and lower positions as youmount the radome.3.7.1 Interconnecting cable (RA41C Radome scanner) (See Fig.3-8-2)!Ensure that the radar is off. Connect the cable to the receptacle labeled "SCANNER"on the rear panel of the display unit."Next, remove the upper part of the radome from the scanner unit. Avoid bumping itagainst the antenna by lifting vertically. (There are four fixing screws.)#Remove the tape fixing the antenna. Fixing screws Ship's heading Logo seal on side wall Fig.3-7-1 Fitting Cover (RA40C)
20$Remove the shield cover located on the astern side. (There are four fixing screws.)%Remove the cable clamping plate and rubber ring, pass cable through the introduc-tion opening, put the rubber ring from both ends of it, and clamp the cable to thescanner unit with screws via the fixing plate. Connect 7-pin connector to X11 and9-pin connector to X12 of PCB.&Replace the aluminum cover. At this time, attach a cable shield onto a ditch withthe aluminum cover. However, be careful that the cable will not be caught up be-tween the main unit and cover.'Replace the upper part of the radome. Be careful not to bump it against the an-tenna in the same way as when removing it. Make sure that the cover is fitted in thecorrect direction as shown in Fig.3-7-2. The upper and lower parts of the radomeeach have four markings indicating screw positions. Align the upper and lower po-sitions as you mount the radome. Ship's heading Logo seal on side wall Fix four screws Cable inlet Fig.3-7-2 Fitting cover (RA41C)
21 Antenna Stern side Shield cover Cable shield Radome (bottom) Fixing plate Rubber ring Interconnecting cable Fix connector on PCB(X1) X1 (Connect here) Radome (bottom) PCB Inner shield Fig.3-8-1 Fitting interconnecting cable (RA40C)
22Fix connector on PCB(X11, X12) Antenna Stern side Shield cover Cable shield Radome (bottom) Fixing plate Rubber ring Interconnecting cable X12 (Connect here) Radome (bottom) PCB Inner shield X11 (Connect here) Fig.3-8-2 Fitting interconnecting cable (RA41C)
233.7.2 Interconnecting cable (RA42C Open scanner) (See Fig.3-9)!Ensure that the radar is off. Connect the cable to the receptacle labeled "SCANNER"on the rear panel of the display unit."Use a T-wrench to remove the back covers of scanner unit.#Remove the two bolts securing the transceiver; pull out the transceiver after removingtwo connectors.(to Motor(X1), to Heading switch (X2))$Remove the four bolts securing the fixing plate at the cable entrance.%Remove the metal fixing plate, rubber seal and washer that secure the cable. Pass thecable through as shown in the diagram below; replace the above items and tighten thebolts.&Return the transceiver to its original position and secure it with the removed bolts.'Connect 7-pin connector to X11 and 9-pin connector to X12 of PCB. And connect twoconnector that removed at #.(Refit the scanner covers.Take care not to pinch the cable when refitting the cover.
24 TR unit fixing bolts Remove connector Fixing bolt Fixing plate Inter-connection cable Clumper 5-10 mm Fixing bolt Cable shield terminal Washer Fixing plate Scanner unit Inter-connection cable Rubber Cable inlet Fig.3-9 Fitting interconnecting cable
253.7.3 Grounding wireConnect grounding wire before connecting powersupply cable. Leakage current is too high.Connect grounding wire from the grounding terminal on the rear panel of the displayunit to the ship's hull as shown below.Connect grounding wire from one of the bolts you have attached when installing thescanner unit to the ship's hull as shown in Fig.3-11. (The crimp terminal and groundingwire are not included with the radar equipment.) SCANNER POWER OPTION Grounding terminal Grounding wire Fig.3-10 Grounding display unit to earth Mount base Radome(bottomChassis →→→→ To ship's hull Crimp terminal Grounding wire Radome scanner Grounding wire →→→→To ship’s hull Scanner cover Open scanner !WARNINGFig.3-11 Grounding scanner unit to earth
263.7.4 Power supply cablePower is fed through a knife switch ( or circuit breaker) and protective fuses, as shownin below.WARNING: Do not apply over 41.6V to Radar or Radar may be broken.Fit the power supply cable (included with your radar) to the receptacle labeled "POWER"on the rear panel of the display unit. And connect to power supply as followings. (When youdo not connect external equipment, put tape on red and green wire.)Place the Fuse and connection part where there is no water splash and dry area.When extend the power supply cable, use a suitable cable as below.Ship's Power Voltage Cable conductor Cable max. length cross section 12Vdc 3.5 mm23 m6.0 mm25 m24Vdc 2.0 mm26 m3.5 mm210 m3.8 Adjustment Be sure to operate the following adjustment. If thisis not adjusted properly, the radar picture does notdisplay true image.When you have finished installing the scanner and display units and connecting cables,turn on the power to the display and scanner units and check to see if they operate nor-mally without problem. Then make adjustments as detailed below and check to see if theunits operate normally again. White Black Gray Green Red Power supply cable To display unit DC+ DC- Ground NMEA- NMEA+ To external equipment To power supply Fig.3-12 Power supply cable!CAUTIONGenerator Switchboard Charger StorageBattery12/24VMain switch panel(Knife Switch withFses)Radar DisplayUnitDC voltagereference points
27! TUNING Refer to Adjusting tuning circuit in 5.5.4.5.4" HEADING DIRECTION Refer to Adjusting angle in 5.5.4.5.4# DISTANCE Refer to Adjusting distance in 5.5.4.5.43.9 Connecting External Equipment to Display Unit The display unit has two channels of NMEA input. One is standard in power cable. Theother is necessary to connect optional parts (Junction box with OPTION cable).OPTION connector is located at display’s rear panel for connecting external equipmentsuch as a GPS, LORAN, or gyro compass. You must have an Junction box with OPTION ca-ble. (Refer to CHAPTER 8 (4) External interface.)Note: SIN/COS and MOB signals cannot be used on Junction Box.Junction box with OPTION cable (Order No. RZ704A)3.10 Countermeasure for Electromagnetic Interference RA40C/41C/42C radar provides shields in the units and the inter-unit connection ca-ble. When the radar, however, is closely installed to radio equipment such as VHF trans-ceiver, UHF transceiver, etc., or the radar and/or radio equipment are not sufficientlygrounded to the hull or ship's earth, the radar may happen to cause EMI trouble.Followings are general procedures for reducing EMI due to radars. When installing ra-dars, refer to them, and also check the radio equipment EMI trouble with operating the ra-dar and radio equipment.SCANNER PO WER OPTIONOPTION cableJunction box*notePOWER cableExternal NMEA equipmentExternal NMEA equipmentGreen :NMEA-Red :NMEA+To power supplyOther radar,slave monitor,External buzzer,Gyro I/FOther radar,slave monitor,External buzzer,Gyro I/F,SIN/COS.MOB(NMEA out)Fig.3-13 Connecting external equipment to display unit
28(1) Installation Place of RadarThe display unit, scanner unit and inter-unit connection cable should be locatedapart from the main unit, feeder, antenna coupler and antenna of radio equipment asfar as possible.Especially, proper installation of the feeder, antenna coupler and antenna of radioequipment is very important to improve EMI trouble.(2) Laying Power Supply CablesFollowing connections A and B are recommended to reduce conduction noise gener-ated from radar. Connection C should not be used.Connection A(Very Good)Connection B(Good)Connection C(Bad)(3) GroundingAll equipment should be firmly grounded at the earth nearest hull with copper platesor braided wires.Improvement Procedure for EMI(1) Confirm grounding on the radar and radio equipment. However, some equipment, onwhich grounding is not always necessarily, have a possibility of EMI improving whentaking off their grounding. Try to take off grounding.(2) Confirm power supply cable connections and modify to the connection A or B above.(3) Try to shift the display unit and inter-unit connection cable of radar to be apart fromradio equipment.(4) Try to shift the feeder of radio equipment to be apart from each units and the inter-unit connection cable of radar.(5) Try to shift the antenna coupler and antenna of radio equipment to be apart fromthe scanner unit and inter-unit connection cable of radar.3.11 When Discarding Your Radar When discarding your RA40C/41C/42C radar, consult the distributor to get informa-tion on precautions to be followed. Tab.3-7 below lists the primary component materials ofthe RA40C/41C/42C radar for your reference.Tab.3-7 Component MaterialsScanner unit Material Display unit MaterialRadome AES Front panel ABSChassis A5052P Rear panel ADC12Base ADC12 Pedestal ABS+PCAntenna A5052PRADARRADIO EQUIPMENTSHIP'S SUPPLYSHIP'S SUPPLYRADARRADIO EQUIPMENTSHIP'S SUPPLYRADARRADIO EQUIPMENTSHIP'S SUPPLY
29CHAPTER 5. OPERATIONBasic operation of radarThe RA40C/41C/42C radar has several fixed-function keys on the front panel. Thesefunctions can be controlled by simply pressing the key. Also, special functions can becustomized to soft-keys by user-setting. The followings explain the operation of each keys.5.1 Powering On and Off (1) Powering OnPress the "POWER" key. Buzzer sounds "pi" and starts the radar system.Screen brilliance is set to the level that of the radar system has been powered off.(2) Powering offKeep pressing the "POWER" key more than 3 seconds, then the radar system willpower off.5.2 Adjusting brilliance of screen and key-backlight (1) Press the "BRILL" key. (Bar and figure indicating brilliance, and figure indicating key-backlight appear on the screen.)(2) Adjust each items with the control knob. Items can be selected by up-down cursor.(3) When the adjustment is finished, press either the "BRILL" key or the "ENT" key to exitfrom the adjustment screen. (Pressing some other key after adjustment will lead to thefunction of the pressed key.) BRILL -→Control knob (Adjustment of brilliance) ----→ BRILL or ENT→Up/Down (Selection of brilliance, key-backlight) →Other function key Move to other functions.75.25HUBRILLIANCE 50ST’BY+KEY BACKLIGHT 4
305.3 Basic Operations xxx = keys to press5.3.1 Powering On and OffPOWER Press "POWER"key to power on.2 minutes timer and "RADAR OFF" are displayed.Keep pressing "POWER" key to power off.Press the "BRIL" key.BRILL Control bar is indicated on the screen.brilliance Up/Down Select brilliance.Control knob Adjust brilliance with knob.key backlight Up/Down Select key backlight.Control knob Adjust key backlight with knob.ENT Press "ENT"key to return.Radar turns into "ST'BY"mode when 2 minutes timer is finished and "ST'BY" is displayed.5.3.2 TransmittingPOWER Press "POWER" key tooperate, radar pictureappears on the screen.Another press "POWER" key,radar turns to stand-bymode.Keep pressing "POWER" key more than 3 seconds, radarturns to power off.RANG UP or Pressing "RANGE UP" key produces a long-distance range,RANGE DOWN "RANGE DOWN" key a short-distance range. .75 .25 HU BRILLIANCE 50 1:58 RADAR OFF + KEY BACK L IGHT 4 AT D‚V‚T D‚Q‚T ‚g‚t + SCREENPOWER ONSTARTCHANGERANGE
315.3.3 Adjusting brilliance of screen and key-backlightxxx = keys to press(1) Press the "BRILL" key. (Bar and figure indicating brightness, and figure indicating back-light appears on the screen.)(2) Select brilliance or key-backlight with the up-down cursor.(3) Adjust each item with the control knob.(4) When the adjustment is finished, press either the "BRILL" key or the "ENT" key to exitfrom the adjustment screen. (Pressing some other key after adjustment will lead to thefunction of the pressed key.) BRIL → Control knob (Adjustment of brilliance) → BRIL or ENT→ Up/Down (Adjustment of brightness, panel) → Other function key Shift to other functions5.3.4 Changing Distance Range (RANGE UP, RANGE DOWN)Pressing "RANGE UP" key produces a long-distance range, and "RANGE DOWN" key ashort-distance range.••RADOME SCANNER (RA40C)RANGE 0.125 •0.25 0.5 0.75 1.5 3 6 12 24Number ofrings222366666Range ringinterval0.06250.125 0.25 0.25 0.25 0.5 1 2 4RADOME SCANNER (RA41C)RANGE 0.125 0.25 0.5 0.75 1.5 3 6 12 24 36Number of rings2223666666Range ring interval 0.0625 0.125 0.25 0.25 0.25 0.5 1 2 4 6OPEN SCANNER (RA42C)RANGE 0.125 0.25 0.5 0.75 1.5 3 6 12 24 48Number of rings2223666666Range ring interval 0.0625 0.125 0.25 0.25 0.25 0.5 1 2 4 85.3.5 Automatic adjustment (AUTO) AUTO adjusts the GAIN, STC and FTC automatically.If the "AUTO" key is pressed while GAIN, STC, or FTC are under manual settings, theywill all be switched to AUTO or HBR(Harbor) mode.Pressing "AUTO" key, AT1, AT2 and HBR changes in turn. Pressing STC key, all. 75. 25HUBRILLIAMCE 50ST’BY+KEY BACKLIGNT 4
32controls return to manual state.AT1 Use when find navigation way in much echo such as port area, narrow channel,small islands area. The control condition is similar to slightly down GAIN.AT2 Use at open sea to suppress the sea clutter. The control condition is similar tohigh GAIN.HBR Use at in a bay area, inlet, or a harbor. The control condition becomes manualSTC by using the value established HARBOR of ADJUST menu. Note) Refer to "Setting STC circuit(STC)" in section 5.5.4.5.4(6). Note) When you select HBR mode, FTC will be switched to MANU mode.* What happens if GAIN, STC, and FTC keys are pressed during AUTO operation?1) If GAIN key is pressed, Only GAIN enters a manual state.2) If FTC key is pressed, Only FTC enters manual state.3) If STC key is pressed, STC, GAIN, and FTC enter manual state.5.3.6 Sensitivity adjustment (GAIN)(1) When the "GAIN" key is pressed, the GAINdisplay on the left side of the screen will bereversed as G 35 and the adjustable state will be entered.(2) When the control knob is turned, the figure willbe shifted within a range of 0 and 99, and thesensitivity can be manually adjusted. Whenthe "AUTO" key is pressed, all (GAIN, STC andFTC) will enter an AUTO state.(3) After the adjustment is finished, press the"GAIN" key to exit from the adjustment state. Ifsome other function key is pressed, shift tothat function will take place.(a) To make adjustments by MANUAL (When the GAIN key is pressed under AUTO operation,shift to a manual operation will take place.)GAIN → Control knob → GAIN -------------------------The adjustment state is ended.µθ>Other function key •------Shift to other functionsµθ>AUTO µθ>AUTO ------------------------GAIN, STC, and FTC are set at AUTO and theadjustment state is ended.(b) To switch from the MANUAL stateAUTO -------------------------------------------------------------------------Set GAIN, STC and FTC at AUTO5.3.7 Removing sea clutter (STC). 75.25HUG 50 ST’BY+
33(1) When the "STC" key is pressed, the STC display on the left side of the screen will bereversed as S 35 and the adjustable state will be entered.(2) When the control knob is turned, the figure will be shifted within a range of 0 and 99,and the STC can be manually adjusted. When the "AUTO" key is pressed, all (GAIN,STC and FTC) will enter an AUTO state.(3) After the adjustment is finished, press the "STC" key to exit from the adjustment state.If some other function key is pressed, shift to that function will take place.(a) To make adjustments by MANUAL (When the STC key is pressed under AUTO operation,shift to a manual operation will take place.)STC → Control knob → STC ----------------------------The adjustment state is ended.→Other function key •--------Shift to other functions→ AUTO → AUTO --------------------------STC, GAIN, and FTC are set at AUTO and theadjustment state is ended.NOTE) When you select MANU mode, GAIN and FTC will be switched to MANU mode, too.(b) To switch from the MANUAL stateAUTO -------------------------------------------------------------------------Set STC, GAIN and FTC at AUTO5.3.8 Removing rain and snow clutter (FTC)(1) When the "FTC" key is pressed, the FTC displayon the left side of the screen will be reversed asF 500 and the adjustable state will be entered.(2) When the control knob is turned, the figure willbe shifted within a range of 0 and 99, and thesensitivity can be manually adjusted. Whenthe "AUTO" key is pressed, all (GAIN, STC andFTC) will enter an AUTO state.(3) After the adjustment is finished, press the"FTC" key to exit from the adjustment state. Ifsome other function key is pressed, shift tothat function will take place.(a) To make adjustments by MANUAL (When the FTC key is pressed under AUTO operation,shift to a manual operation will take place.)FTC → Control knob → FTC -------------------------The adjustment state is ended.µθ>Other function key -------Shift to other functionsµθ>AUTO µθ>AUTO ------------------------GAIN, STC, and FTC are set at AUTO and theadjustment state is ended.(b) To switch from the MANUAL stateAUTO -------------------------------------------------------------------------Set GAIN, STC and FTC at AUTO. 75.25HUF 50 ST’BY+
345.3.9 Man Over Board (MOB)Pressing the MOB key will send the own ship's position data to the external equipmentthrough NMEA port with "WPL" format. There is no change on the screen.To check the MOB position data, select "MOB" from the "WINDOW" menu in the "SETUP".The position of MOB and current position will be displayed on the screen. If press the "MOB"key while watching the MOB screen, MOB data will be cleared and return to previous screen.If press other keys, MOB data will be remained and return to previous screen.
355.4 Functions of Soft Keys xxx •keys to press•Outline of soft keysAny function can be optionally allocated to the key upon which numbers 1-7 are indicated. Amaximum of 4 groups of functions can be allocated to each soft key, and switching betweenthose functions is conducted by the "NEXT" key.5.4.1 Bearing measurement (EBL1)(a) Bearing measurement by EBL1(1) When "EBL1" key is pressed, electric bearing line (EBL1) appears and the angle from thedirection of the ship’s head which is set at 0 °will appear in a reverse display at the lower leftof the screen(Note).(2) Use the control knob to place the direction cursor on the target, and read the angle.(3) After the settingi) If "EBL1" key is pressed, the setting is completed.ii) If "other function" key is pressed, the function will be shifted to that of the pressed keywith the setting condition still in effect.note: 1 xxx.x φ indicates EBL1.EBL1 → Control knob → EBL1 EBL1 is displayed and the process is finished.µθ>Other function key EBL1 is displayed and the function is shifted.µθ>EBL1 EBL1 is turned off.(b)(b) To turn off the EBL1 When the "EBL1" key is pressed twice, EBL1 disappears. (EBL1 OFF)Note: Refer to "5.5.1.1 Bearing measurement (EBL1)".5.4.2 Bearing measurement (EBL2)The operation is the same as EBL1. Refer to the EBL1 operation. The "EBL2" will appearin a reverse display at the lower right of the screen5.4.3 Distance measurement (VRM1)(a) Distance measurement by VRM1(1) When "VRM1" key is pressed, variable range marker (VRM1) appears and the distance ina reverse display appears at the lower left of the screen.(2) Place the marker on the front edge of the target with the control knob and read thedistance.(3) After the settingi) If "VRM1" key is pressed, the setting is completed.ii) If "other function" key is pressed, the function will be shifted to that of the pressed keywith the setting condition still in effect.note: 1 xxx.x NM indicates VRM1.
36VRM1 → Control knob → VRM1 VRM1 is displayed and the process is finished.µθ>Other function key VRM1 is displayed and the function is shifted.µθ>VRM1 VRM1 is turned off.(b)(b) To turn off the VRM1 When the "VRM1" key is pressed twice, VRM1 disappears. (VRM1 OFF)Note: Refer to "5.5.1.2 Determining the distance (VRM1)".5.4.4 Distance measurement (VRM2)The operation is the same as VRM1, refer to VRM1 operation. The "VRM2" will appear ina reverse display at the lower right of the screen5.4.5 Measuring the angle between two points (FL EBL2)Note: VRM2 and EBL2 do not follow the OFF-C function while floating.Note: Refer to "5.5.1.5 Measuring the distance or angle between two points ( FL EBL2, FLVRM2 )".(a) Setting a reference point for measurement of the angle.(1) Press "FL EBL2" key. “SET START POINT” is displayed and a small cross mark appears.FL EBL2 → FL EBL2 is turned ON and(Select FL EBL2) the small cross mark appears.(2) Use the left-right and up-down cursor keys to place the small cross mark on one of thetwo echoes whose angle will be measured, and press the "ENT" key. Up/Down & Left/Right → ------ ENT Criterion of the reference point is set.(Place the cross cursor on an echo)(b). MeasuringPerform the operations in the above mentioned and "measuring the angle(EBL2)", andplace the EBL2 on another echo.EBL2 is displayed on the screen based on the placed fixed cross cursor." 2 xxx.x°" which is displayed at the lower right will be the angle between the twopoints.5.4.6 Measuring the distance between two points (FL VRM2)Note: Refer to "5.5.1.5 Measuring the distance or angle between two points ( FL EBL2, FLVRM2 )".(a) Setting a reference point for measurement of the angle.
37(1) Press "FL VRM2" key. “SET START POINT” is displayed and a small cross mark appears.FL VRM2 → FL VRM2 is turned ON and(Select FL VRM2) the small cross mark appears.(2) Use the left-right and up-down cursor keys to place the small cross mark on one of thetwo echoes whose angle will be measured, and press the "ENT" key. Up/Down & Left/Right → ------ ENT Criterion of the reference point is set.(Place the cross cursor on an echo)(b) MeasuringPerform the operations in the above mentioned and "measuring the distance(VRM2)", andplace the VRM2 on another echo.VRM2 is displayed on the screen based on the placed fixed cross cursor." 2 xx. xNM" which is displayed at the lower right will be the distance between the twopoints.5.4.7 Changing the group of Soft Keys (NEXT)Any function can be optionally allocated to the key upon which numbers 1-7 are indicated.A maximum of 4 groups of functions can be allocated to each soft key, and switching betweenthose functions is conducted by the "NEXT" key.The "NEXT" key switches between allocated function groups on the soft key which numbers1-7 are indicated.Εϖερψ τιµε πρεσσινγ τηε ∀ΝΕΞΤ∀ κεψ, function groups changes to another groups includedpressing "NEXT" key. The function groups can also be changed at the "KEY ASSIGNMENT"function in the "CUSTOM" menu of the "SETUP" with left-right cursor key. Operation__Soft Key Setting Example_SET1 SET2 SET3 SET4 7 7 7NEXT NEXT NEXT 7NEXT 1 3 4 5 2 1 3 4 5 2 1 3 4 5 2 6 6 6EBL1VAR RNGTRACKTARGEVRM1EBL2FL EBL2FLGZVRM2RINGSSTZOOMSLEEPTUNESEL WIN OFF-C PICTURE 7 7 7NEXT NEXT NEXT 1 3 4 5 2 6PPIPPI/PPPPI/NAVALLPPI/3DALL 7NEXT
38The function can be changed at the "KEY ASSIGNMENT" function in the"CUSTOM" menu of the "SETUP".
395.4.8 Erasing heading maker temporarily (HDG OFF)Press the “HDG OFF” key. The heading marker is not displayed as long as you hold it down.5.4.9 Using parallel cursors (///CSR)Press the “///CSR” key. Parallel cursors will appear on the screen. As you move EBL, theparallel cursors also move.To cancel the "///CSR" function, press "///CSR" key once more.Note: Refer to "5.5.1.8 Using parallel cursors (///CSR)".5.4.10 Establishment of the indication of the RANGE RINGS (RINGS)Press the “RINGS” key. Range Rings will appear on the screen. To cancel the "RINGS"function, press "RINGS" key once more.Note: Refer to "5.5.1.9 Establishment of the indication of the RANGE RINGS (RINGS)".5.4.11 ON/OFF of variable range function (VAR RNG)Usually the range changes in steps as 0.5--0.75--1.5--3.0--....., but using this function willenable a consecutive change such as 0.5--0.6--0.7--0.8--..... .Press the “VAR RNG” key. The VAR RNG function becomes valid and VAR will be displayedat the upper left of the screen (beside MODE). To cancel the "VAR RNG" function, press "VARRNG" key once more.The range changes continuously with the up-down cursor while the VAR RNG function ison, and it changes in steps with the "RANGE UP" or "RANGE DOWN" keys.If pressing other keys, return to the normal state from continuously range change state.5.4.12 Changing display modes (MODE)(1) Select MODE from the pull-down display items using the up-down cursor keys, and pressthe "ENT" key.(2) When the HU/HS/NU/CU/TM sign is displayed beside the MODE item, select display modewith the up-down cursor keys and press the "ENT" key.(3) The setting will be completed when the "ENT" key is pressed after the selection. (NOTE1,2)Press the "MODE" key, the display mode will change on every pressing to HU, HS, NU, CU,TM in order. The mode select at the upper of the screen is indicated. However, a setting will beneeded for the ship’s speed if TM is selected. Also, a heading or a course information isnecessary for NU, CU and TM.νοτε: ΤΜ ισ ϖαλιδ ονλψ ον ΠΠΙ σχρεεν. Τηε µοδε ωιλλ χηανγε το ΝΥ ον τηε οτηερ σχρεεναυτοµατιχαλλψ.Note: Refer to "5.5.2.1 Changing display mode (MODE)".5.4.13 Guard Zone (GZ)
40A function that sets a guard zone of any distance and any angle range, creating alarm tonewhen either echoes above a certain level exist (IN MODE) or no echoes exist(OUT MODE).When GZ is operated with soft keys, guard zone settings and ON/OFF settings can beconducted, but the mode (IN or OUT) is to be set in the menu.Note: Refer to "5.5.2.2 Guard Zone (GZ)".(1) When the "GZ" key is pressed, the present mode setting will be displayed on the left side ofthe screen as GZ IN. A small cross cursor for setting the guard zone will be displayed at thescreen center while "SET CENTER POINT" is displayed at the bottom, activating a guard zonesetting state.(2) Use the up-down/left-right cursor keys to move the cross cursor to the center of the warningzone to be set, and press the "ENT" key.(3) From the cross cursor position set in (2) above as the center, expand the guard zone in thedirection of the distance with the up cursor key and in the direction of the angle with theright cursor key, thus making the form of a fan. To make the warning zone smaller, operatethe down cursor key (in the direction of the distance) and the left cursor key (in the directionof the angle).(4) After the setting the guard zone, finish by pressing the "ENT" key.Press the GZ key twice to cancel the guard zone function.GZ → Up/Down & Left/Right → ENT → Up/Down & Left/Right → ENT Setting completedξ(Setting the center of GZ) (Setting the scope of GZ)µθ> GZ -------------------------------------------------------------------------------------------------------- Canceling GZ•Stop the alarm tonePress the "MENU" key or "ENT" key during the alarm tone sounds, alarm tone will stop.νοτε: Set the mode (IN or OUT) at the "GZ MODE" of the "PRESET2" function in the"CUSTOM" menu of the "SETUP"Set the alarm level (IN or OUT) at the "GZ LVL" of the "PRESET2" function in the"CUSTOM" menu of the "SETUP"5.4.14 Off Center (OFF-C)Displaying the location specified by the cross cursor as the ship's locationNote: Refer to "5.5.2.3 Shifting display in specific direction (OFF-C)".(1) When the "OFF-C" key is pressed, OFF-C is displayed at the upper right and "SET OFFCENTER POINT" at the bottom of the screen, and setting is ready to be entered.(2) Move the cross cursor with the cursor keys to move the ship to the intended location, andpress the "ENT" key. The ship's location will be displayed as the cursor's location. OFF-C isdisplayed at the upper right , which indicates that the "OFF-C" state is entered.(3) To cancel "OFF-C"•function, press the "OFF-C" key.(a) To conduct the setting
41OFF-C → Up/Down & Left/Right → ENT ---------------- Conduct Off Center to exit the adjustment state. Note: VRM2 and EBL2 do not follow the OFF-C function while floating.The function operates on PPI screen only.(b) To cancel the settingOFF-C ---------------------------------------------------The "OFF-C" display at the upper right disappears and functionreturns to the ordinary state from the Off Center state.5.4.15 Setting of the SLEEP function(SLEEP)This function sends a 30-second-transmissions during pre-fixed hours. After atransmission, a power-saving mode is entered with the screen in ST'BY state (the scanner-OFFstate) and the LCD backlight turned off. This action is repeatedly executed.Usage example, set a guard zone and have the warning signal automatically confirmed everyprefixed period.Press the "SLEEP" key. Every pressing the key, "SLEEP" function will be set as 5-minutes,10-minutes, 15-minutes, or off. When a transmission is conducted after setting a SLEEP mode, a ST'BY state is enteredand the backlight turns off after a 30-second-transmission. (Power-saving mode). Two minutesbefore the fixed time the backlight turns on and the 2-minute timer starts. Then, at the fixedtime another 30-second-transmission begins. This series of actions are repeated. If any one keyis pressed during the course of this action, the SLEEP function will be canceled.Note: Refer to "5.5.2.4 Setting of the SLEEP function(SLEEP)".(1) Setting procedureSLEEP → (Select 5min.) → ENT → POWER ---→ 30-second-transmission every 5 min. µ transmission ONSLEEP → (Select 10min.) → ENT → POWER --→30-second-transmission every 10 min. µ transmission ONSLEEP →(Select 15min.) → ENT → POWER --→30-second-transmission every 15 min. µ transmission ONSLEEP →(Select OFF) --------------------------------------- SLEEP function is turned OFFSetting completed5.4.16 Tuning adjustment (TUNE)(1) When the "TUNE" key is pressed, the TUNE display on the upper-right side of thescreen will be reversed as 35 and the adjustable state will be entered.(2) When the control knob is turned, the figure will be shifted within a range of 0 and
4299, and the receiver tuning can be manually adjusted.(3) After the adjustment is finished, press the "ENT" key to exit from the adjustmentstate. If some other function key is pressed, shift to that function will take place.TUNE → Control knob → --------------- TUNE •or ENT The adjustmentstate is ended.(tuning adjustment) µ-> --------------- Other function key • Shift to otherfunctionsNote: Use the "MENU" to return auto-tuning state.Note: Refer to "5.5.3.4 Adjusting receiver tuning (TUNE)".5.4.17 Echo expansion (ST)Expanding the echo to the direction of the distance.When the "ST" key is pressed, "ST1" is displayed on the left side of the screen and the stateof echo expansion is entered. This changes the picture to display echoes expanding in thedirection of the distance. Two types of echo expansion exist, which are alternated as follows ,every time this key is pressed.Note: Refer to "5.5.3.5 Echo expansion (ST)".ST1 → ST2 → OFF •Expansion rate ST1 < ST2 •Note: The "OFF" state is not displayed on the screen and the "ST2" display disappears.5.4.18 Displaying locus of target (TRACK)When the "TRACK" key is pressed, "TK 15SEC" is displayed on the left side of the screen andtrack mode is entered. 15S indicates the length of the track, and displays a maximum of 15-second-long sailing track.Note: Refer to "5.5.3.6 Displaying locus of target (TRACK)".Every time this key is pressed, the course length switches as follows. 15 sec → 30 sec → 1 min → 3 min → 6 min → CONT → OFFNote: The "OFF" state will not displayed on the screen and the "TK xx " display will disappear.5.4.19 Enlarging selected areas (ZOOM)The video image centering around the cross cursor is doubled as it is displayed on thescreen.Press the "ZOOM" key to "ZOOM" ON. A small cross cursor for setting and "SET ZOOMPOINT" are displayed at the screen center and at the bottom respectively, and the magnificationpoint is to be set. Use cursor keys to move the cross cursor to the point to be magnified, press
43the "ENT" key and the setting is completed. The area around the cross cursor is displayed in 2xmagnification, with blinking "ZOOM" displayed at the screen upper right, indicating that aZOOM display is being conducted.To cancel the ZOOM function, press the "ZOOM" key again or change the range scale.Note: Refer to "5.5.3.7 Enlarging selected areas (ZOOM)".ZOOM → Up/Down & Left/Right → ENT -------------------- ZOOM setting(Move cross cursor)µθ> (Select OFF) → ZOOM ------------------ZOOM canceledNote1: VRM2 and EBL2 do not follow the ZOOM function during a floating state.Note2: Normal screen returns when you change the range scale.Note3: ZOOM function is unusable in 3D/PPI screen.Note4: ZOOM function is unusable in OFF-C.Note5: Center of ZOOM can be set any desired position within the set range.5.4.20 Increasing sensitivity (S/L)The pulse width is automatically changed as you change the range. However, if you wantto increase sensitivity, you can choose sensitivity from two pulse lengths. The short pulse(SHORT) gives you sharp images with high distance resolution. The long pulse (LONG) provideshigh sensitivity and shows targets in large size for easy identification although distanceresolution is reduced.Press the "S/L" key to select the Pulse length(LONG or SHORT). The pulse length changesL(Long) and S(Short) alternately.Note: Refer to "5.5.3.8 Increasing sensitivity (S/L)".S/L → (Select SHORT) → Set to short pulse µθ> or (Select LONG) → Set to long pulse5.4.21 Switching the screen (SEL WIN)Switching to the desired screen for activation on a 2-screen display(PPI+PPI).When change the range, or adjust the GAIN, STC, or FTC, or control the VRM, EBL, select the desiredscreen first.ex.) To be used for switching the range on the PPI+PPI screen.When the "SEL WIN" key is pressed, the range of the selected screen will be displayed inreverse, indicating that the screen is active.Note: Refer to "5.5.4.2 Switching screens on PPI/PPI screen ( SEL WIN )".SEL WIN → (Select right screen) → Rightscreen activated
44 µθ> or (Select left screen) → Leftscreen activatedIf VRM1 is controlled on the screen that is oposit from current VRM1 displayed screen,VRM1 is moved and displayed to activated screen. The EBL1, EBL2, and VRM2 is the samemanner.5.4.22 Changing the color of screen (PICTURE)The LCD display is affected by weather and day / night environment conditions. In somecases, you may find the LCD display is easier to view when the entire color of screen is changed.Press the "PICTURE " key, a day display will appear if night display has been selected, and anight display if day display selected.Note: Refer to "5.5.4.3 Changing the color of screen (PICTURE)".5.4.23 Change to PPI screen ( PPI )Press the "PPI" key, the screen will change to PPIscreen.Use to change the screen from other modes to PPI.5.4.24 Change to SEMI3D/PPI screen ( SEMI3D )Press the "SEMI3D" key, the screen will change toSEMI3D/PPI screen.Use to change the screen from other modes toSEMI3D/PPI.Note: All controls, such as EBLs, VRMs effects both screen.The ZOOM, OFF-C, FL EBL2, and FL VRM2 could not be used on this mode. The "SEMI3D" screen displaysthe center as ship's heading always.5.4.25 Change to PPI/PPI screen ( PPI/PPI ) . 75 .25 HU + PPI screen .75 .25 HU S { 280 320 000 040 080 SEMI3D/PPI screen
45Press the "PPI/PPI" key, the screen will change toPPI/PPI screen. Use to change the screen from othermodes to PPI/PPI.Note:(1) The radar picture is refreshed with two scanninginterval for each screen. Right screen picture isholded during refreshing left screen, left screenholded during refreshing right screen.LEFT screen /---------/********/---------/********/---------/******** time→→→→RIGHT screen ********/---------/********/---------/********/---------/(2) The ZOOM, OFF-C, FL EBL2, and FL VRM2 could not be used on this mode.(3) The range, GAIN, STC, FTC, GZ can be used independently for selected window with "SELWIN".Selected window is that the range displayed in reverse character. Please refer to "SEL WIN".(4) The cross cursor can be controlled on selected window.5.4.26 Change to PPI/NAV screen ( PPI/NAV )Press the "PPI/NAV" key, the screen will change toPPI/NAV screen.Use to change the screen from other modes toPPI/NAV.Note: The ZOOM, OFF-C, FL EBL2, and FL VRM2 can not beused on this mode.5.4.27 Change to ALL PPI screen ( ALL PPI )Press the "ALL PPI" key, the screen will change to ALLPPI screen.Use to change the screen from other modes to ALL PPI.Note:(1) The range, rings interval, display mode are displayed onthe upper left of the screen.(2) Return to PPI screen mode pressing a key except MENU,range UP or DOWN, or POWER key.5.4.28 Change to ALL PPI/PPI screen ( ALL PPI2 ) .75 .25 HU S 24 6 { G 55/35 S 35/AT F 35/AT PPI/PPI screen .75 .25 HU s + NAV DISPLAY WAY P 123.4° 6.8NM COURSE 2.38NM XTE <<<< HDG 267.3°T SPD 12.8‚j‚s TEMP 20.8°C DEPTH 58.3M LAT/LON 34° 08. 22N 138° 02 .53E PPI/NAV screen .75 .25 HU + ALL PPI screen refreshing radar pictureholding previous picture
46Press the "ALL PPI2" key, the screen will change toALL PPI/PPI screen.Use to change the screen from other modes to ALLPPI/PPI.Note:(1) The range, rings interval, display mode are displayedon the upper left of each screen.(2) Return to PPI/PPI screen mode pressing a key exceptMENU, range UP or DOWN, or POWER key.(3) The radar picture is refreshed with two scanninginterval for each screen. Right screen picture is holded during refreshing left screen, leftscreen holded during refreshing right screen. When your ship navigates in high speed, usePPI screen to get fast refreshing picture..75 @.25 HU S .25 .125{ALL PPI/PPI screen
525.5.2 Nav (Navigation) Menu xxx = keys to pressRadar functions for navigation aid are in this menu.•Common operations for the NAV menu (Up to the point when "NAV" menu is selected from the main menu)Press the "MENU" key and select "NAV" from the displayed 4 main menus using the left-rightcursor. (The contents of the selected MENU will appear on a pull-down display in accordancewith the movement of the left-right cursor.)MENU →Left/Right (Select NAV)Further explanation about the NAV menu will be conducted on the assumption that this"common operation for the NAV menu" has already been completed. 5.5.2.1 Changing display mode (MODE)(1) Select MODE from the pull-down display items using the up-down cursor key, and presseither the "ENT" key.(2) When the MODE sign is displayed beside the MODE item, select a mode with the up-downcursor keys and press the "ENT" key.(3) The display mode indicates upper-left on the screen.UP/DOWN --> ••• --> UP/DOWN•Select MODE• |--> (Select HU• --> ............ ••• •••Head up•|--> (Select HS• --> ............ ••• •••Head set•|--> (Select NU• --> ............ ••• •••North up•|--> (Select CU• --> ............ ••• •••Course up• --> (Select TM• --> ............ ••• ••(True motion)Note1: Navigation equipment (gyrocompass, magnet compass, or GPS) must be connected toyour radar in NU, CU and TM modes.Note2: In TM modes it is necessary to set as follow (1) or (2).(1) Input of speed information from NMEA. (2) Set your ship’s speed manually.Note3: TM works only on PPI screen, NU is used automatically for the other screens.MARK MODE >GZ >OFF-C >SLEEP >.75.25HU L NAV ECHO SETUPNAVIGATION>>> 0.23 NMATHUHSNUCUTM
53 5.5.2.2 Guard Zone (GZ)A function that sets a guard zone of any distance and any angle range, creating alarm tonewhen either echoes above a certain level exist (IN MODE) or no echoes exist(OUT MODE). Setting guard zone(1) Select GZ from the pull-down display items using the up-down cursor keys, and press the“ENT” key. ON/OFF sign is displayed beside the GZ item.Up/Down --> ENT ------------------------------- ON/OFF sign is displayed.(2) Select “ON” by “common operation for the GZmenu”, and press the “ENT” key.(3) The present mode setting will be displayed on the leftside of the screen as GZ IN. A small cross cursor forsetting the guard zone will be displayed at the screencenter while "SET CENTER POINT" is displayed atthe bottom, activating a guard zone setting state.(4) Use the up-down and left-right cursor keys to move the cross cursor to the center ofthe warning zone to be set, and press the "ENT" key.(5) From the cross cursor position set in (4) above as the center, expand the guard zone asfollows.(6) After the setting the guard zone, finish by pressing the "ENT" key. To cancel the guard zone function, select “OFF” by“common operation for the GZ menu”, and pressthe “ENT” key.ENT --> Up/Down &Left/Right --> ENT --> Up/Down &Left/Right •--> ENT ----------------Setting completed(Setting the center of GZ) (Setting the scope of GZ) -----------------------------------------GZ INSET CENTER POINTThe central position of the guard zone.With this point as the center, the zonecan be expanded in the directions ofthe distance and the angle with theupper and right cursor keysExpand with the right cursor key inthe direction of the angle. Use theleft cursor key to make the zoneExpand with the up cursor key in thedirection of the distance. Use the downcursor key to make the zone smaller.The mode (IN or OUT) is displayed when the state isON. Nothing is displayed when it is OFF. GZ IN
54Stop the alarm toneWhen the alarm sounds, press any key to stop. But the guard zone function is stillworking, the alarm may sounds again. To "OFF" the guard zone function, select "OFF"from GZ menu.Note1: To switch the IN or OUT mode, refer to “Guard Zone Mode” in section 5.5.4.5.3 “Changingthe content of settings 2 (PRESET2)”Note2: To set the guard zone level, refer to “Guard Zone LeveL” in section 5.5.4.5.3 “Changing thecontent of settings 2 (PRESET2)”5.5.2.3 Shifting display in specific direction (OFF-C)Displaying the location specified by the cross cursor as the vessel's location.(1) Select OFF-C from the pull-down display items using up-down cursor key, and press the"ENT" key.(2) When the ON/OFF sign is displayed beside the OFF-C item, select ON with the up-downcursor keys and press the "ENT" key.(3) OFF-C is displayed at the upper right and "SET OFF CENTER POINT" at the bottom ofthe screen, and setting is ready to be entered. Move the cross cursor with the cursorkeys to move the ship’s to the intended location, and press the "ENT" key. The ship’slocation will be displayed at the cursor's location. The display at the upper right will benormalized from the reverse state, which indicates that the "OFF-C" state is entered.(4) To cancel “OFF-C” function, either select OFF in (2)Up/Down --> ENT --> Up/Down(Select OFF-C) |-->(Select ON) ENT --> Left/Right & Up/Down --> ENT SetOFF-C-->(Select OFF) ENT -----------------------------Cancel OFF-CNote: VRM2 and EBL2 do not follow the OFF-C function while floating.The function operates only on PPI screen.5.5.2.4 Setting of the SLEEP function(SLEEP)This function sends a 30-second-transmissions during pre-fixed hours. After atransmission, a power-saving mode is entered with the screen in ST'BY state (the scanner-OFF .75 .25 HU.75.25HUSET OFF-C POINTOFF-CMove the cross cursor indicates "OFF-C" state is entered
55state) and the LCD backlight turned off. This action is repeatedly executed.Usage example, set a guard zone and have the warning signal automatically confirmed everyprefixed period.(1) Use the up-down cursor keys to select SLEEP from among the pull-down display items, andpress the "ENT" key.(2) When the OFF/5min/10min/15min display has appeared beside the SLEEP item, select atime to be set with the up-down cursor keys.(3) Press the "ENT" key and the setting is completed. When the SLEEP function is to becanceled, select OFF in (2).When a transmission is conducted after setting a SLEEP mode, a ST'BY state is enteredand the backlight turns off after a 30-second-transmission. (Power-saving mode). Twominutes before the fixed time the backlight turns on and the 2-minute timer starts. Then, atthe fixed time another 30-second-transmission begins. This series of actions are repeated. Ifany one key is pressed during the course of this action, the SLEEP function will be canceled.(a) Setting procedureUp/Down →ENT →Up/Down -->Select OFF) →ENT -----------SLEEP function is turned OFF(Select SLEEP) -->(Select 5min.) ------------------------------- →ENT →POWER 30-second-transmission every 5 min.-->(Select 10min.) →ENT →------------------------ POWER30-second-transmission every 10 min.-->(Select 15min.) →ENT → ----------------------- POWER 30-second-transmission every 15 min.TransmissionSetting completed(b) Action after settingSLEEP setting•5min.• •Operation• • •(Under Tx• •(Under power-saving mode•• •2min. timer in use••(Under Tx•••(Under power-saving mode•0 sec. 30 sec. 3 min. 5min. 5and a half min. •Time used•TX Start TX OFF Backlight ON Tx Start TxOFF •Action•Countdown start-- What happens if a key is pressed after a SLEEP mode setting?If a transmission is conducted and a key is pressed after setting a SLEEP mode, power-saving mode is entered 30 seconds after key is pressed.-- What happens if a key is pressed during the SLEEP mode?a) If a key is pressed during the power-saving mode, the SLEEP function is canceled and the 2-minute timer starts.
56b) If a key is pressed while the 2-minute timer is in use, or during transmission , the SLEEPfunction is canceled.
565.5.3 Echo Menu xxx •••keys to pressAdjustment options to be conducted on the echoes displayed on the screen•Common operations for the ECHO menu (Up to the point when "ECHO" menu is selectedfrom the main menu)Press the "MENU" key and select "ECHO" from the displayed 4 main menus using the left-right cursor. (The contents of the selected MENU will appear on a pull-down display inaccordance with the movement of the left-right cursor.)MENU •••---> Left/Right (Select ECHO)When the above-mentioned operations have been conducted, the items of the ECHO menuare vertically displayed.Further explanation about the ECHO menu will be conducted on the assumption that this"common operation for the ECHO menu" has already been completed.5.5.3.1 Sensibility adjustment (GAIN)(1) Use the up-down cursor keys to select GAIN from among the pull-down display items, andpress either the "ENT" key or the right cursor key.(2) Select MANU from the MANU/AUTO display beside the GAIN item using the up-downcursor keys, and press the "ENT" key.(3) The present state of GAIN is displayed in reverse on thescreen left as•G 35• and an adjustable state is entered.When the control knob are operated in this state, thefigure alternates within a range of 0 and 99 and the GAINcan thus be adjusted.(4) The adjustment is completed by pressing the "ENT" keyafter adjustment.When AUTO action is to be entered, select AUTO in (2)and press the "ENT" key to complete the setting.G 56The setting value is displayed duringMANUAL operation.AT is displayed during AUTO operation.(The same applies to STC, FTC and TUNE.)MARK.7 5.2 5H U L NAV ECHOSETUPECHO>>> 0.23 NMGAIN >STC >FTC >TUNE >ST >•MANU•AUTOAT
57Up/Down --> ENT --> Up/Down(Select GAIN) |->(Select MANU) --------------------> Control knob --> ENTSet to MANU mode| (GAIN adjustment)|->(Select AUTO) ----------------------------------- --> ENTSet to AUTO mode5.5.3.2 Removing sea clutter (STC)Refer to the section, “Sensibility adjustment (GAIN)”.Up/Down --> ENT --> Up/Down(Select STC) |->(Select MANU) --> ENT --> Control knob --> ENT Set toMANU mode| (STC adjustment)|->(Select AUTO) --> ENT -----------------------------------Set to AUTO modeNote: When you select MANU mode, GAIN and FTC will be switched to MANU mode, too.Note: When you select HARBOR mode, FTC will be switched to MANU mode.5.5.3.3 Removing rain and snow clutter (FTC)Refer to the section, “Sensibility adjustment (GAIN)”.Up/Down --> ENT --> Up/Down(Select FTC) |->(Select MANU) --> ENT --> Control knob --> ENT Set toMANU mode| (FTC adjustment)|->(Select AUTO) --> ENT -----------------------------------Set to AUTO mode5.5.3.4 Adjusting receiver tuning (TUNE)Refer to the section, “Sensibility adjustment (GAIN)”.Up/Down --> ENT --> Up/Down(Select TUNE) |->(Select MANU) --> ENT --> Control knob --> ENT Set to MANUmode| (TUNE adjustment)|->(Select AUTO) --> ENT ------------------------------------Set to AUTO mode35
585.5.3.5 Echo expansion (ST)Expanding the echo to the direction of the distance. Two types of echo expansion exist, select ST1 or ST2 from the menu.(1) Use the up-down cursor keys to select ST from among the pull-down display items, andpress the "ENT" key.(2) Select ST1 or ST2 from the display beside the ST item using the up-down cursor keys,and press the "ENT" key.Up/Down --> ENT --> Up/Down -->••select ST1• ............... --> ENTset ST1|->••select ST2• ............... |-> ENTset ST2|->••select OFF• ............... |-> ENTST OFF( expansion rate ST1<ST2 )5.5.3.6 Displaying locus of target (TRACK)(1) Use the up-down cursor keys to select TRACK from among the pull-down display items,and press the "ENT" key.(2) Select 15SEC, 30SEC, 1MIN, 3MIN, 6MIN, or CONT from the display beside the TRACKitem using the up-down cursor keys, and press the "ENT" key."TRK 15S" is displayed on the left side of the screen and track mode is entered. 15Sindicates the length of the track, and displays a maximum of 15-second-long sailing track. .75 .25 HU + ST1 .75 .25 HU + The picture to display echoes expanded in the direction of the distance ST1, or ST2 display, no display on OFF state ST function is OFF Indicated setting value onmanual mode,
59 Note: When PPI+PPI or ALL PPI+PPI screen mode is used, TRACK function can be usedonly on CONT mode.up/down --> ENT --> up/down ........... ->••select OFF•-> ENT TRACK OFF|---->••select 15SEC• ......................... -> ENTset 15sec. track|---->••select 30SEC• ......................... -> ENTset 30sec. track|---->•select 1MIN• ........................... -> ENTset 1 min. track|---->•select 3MIN• ........................... -> ENTset 3 min. track|---->••select 6MIN• .......................... -> ENTset 6 min. track|---->••select CONT• .......................... -> ENTset continue track5.5.3.7 Enlarging selected areas (ZOOM)The video image centering around the cross cursor is doubled as it is displayed on thescreen.(1) Use the up-down cursor keys to select ZOOM from among the pull-down display items, andpress the "ENT" key.(2) Select the ON using up-down cursor keys from the ON/OFF display beside the ZOOM item,and press the "ENT" key.(3) A small cross cursor for setting and "SET ZOOM POINT" are displayed at the screen centerand at the bottom respectively, and the magnification point is to be set. Use cursor keys tomove the cross cursor to the point to be magnified, press the "ENT" key and the setting iscompleted. The area around the cross cursor is displayed in 2x magnification, with blinking"ZOOM" displayed at the screen upper right, indicating that a ZOOM display is beingconducted. To cancel the ZOOM function, either select OFF in (1) or begin operation of range. disappear after selecting time real echo locus of target moving direction the length of the track.75.25HU+TK 15SEC
60Up/Down --> ENT --> Up/Down (Select ON) --> ENT --> Up/Down & Left/Right --> ENT ZOOM Setting(Select ZOOM) | (Move cross cursor)|--> (Select OFF) --> ENT ----------------ZOOM canceledNote 1) VRM2 and EBL2 do not follow the ZOOM function during a floating state.Note 2) Normal screen returns when you change the range scale.Note 3) ZOOM function is usable only in PPI screen.Note 4) ZOOM function is unusable in OFF-C.Note 5) Center of ZOOM can be set any desired position within the set range.5.5.3.8 Increasing sensitivity (S/L)The pulse width is automatically changed as you change the range. However, if you wantto increase sensitivity, you can choose sensitivity from two pulse widths. The short pulse(SHORT) gives you sharp images with high distance resolution. The long pulse (LONG) provideshigh sensitivity and shows targets in large size for easy identification although distanceresolution is reduced.(1) Use the up-down cursor keys to select S/L from among the pull-down display items, andpress the "ENT" key.(2) Select Pulse length(SHORT or LONG) using the up-down cursor keys from the SHORT/LONG displaybeside the S/L item(3) The setting will be completed when the “ENT” key ispressed after the selection. Up/Down --> ENT -->(Select SHORT) -------------------- -->ENT Set to short pulse|-->(Select LONG)--> ENT -------------- Set to long pulse.75.25HUSET ZOOM POINT.75.25HU S.75.25HU+indicated S orZOOMblinking "ZOOM"
715.5.4.5.2 Changing the content of settings 1(PRESET1)(1) When PRESET1 is selected from CUSTOM items and the "ENT" key is pressed, thePRESET1 screen (See chart below) appears.(2) Select items with up-down keys and contents with left-right keys.The selected items will be enclosed by square frames and the contents will appear inreversed display. (a)Repeat this operation when multiple settings are to be made.(3) After the setting is completed, exit from the PRESET1 screen with the "ENT" key.Note) The contents will be displayed in (b) together with the numbers selected in P TABLE.•• Heading Flash Each revolution of the antenna turns the heading markeron and off.b) Stern Mark Display/non-display of the stern linec) North Mark Display/non-display of the north mark•• ST'BY screen Setting the screen display in stand-byNAVI: Navigation Data screenNOR: Normal screene) Buzzer Volume Setting the volume of the buzzera) Heading Flash b) Stern Mark c) North Mark d) ST'BY screen e) Buzzer Volume f) VRM Unit g) Water temperature h) Depth Unit i) EBL Mode j) WayPoint Mode k) Heading Input l) Heading Type m) Cursor position n) TX Pulse PRESET1 HM FLASH ON _OFF_ STERN M ON _OFF_ NORTH M ON _OFF_ ST’BY _NAVI_ NOR BUZ VOL OFF LOW _HIGH_ RM UNIT _NM_ KM SM TEMP °°°°C_ °°°°‚e DEPTH _M_ FT FM EBL BRG _REL_ TRUE MAG WP BRG _TRUE_ MAG HEAD INPUT _NMEA_ SIN/COS 12BIT 10BIT HEAD TRUE _MAG_ +MK MODE _DIST / BRG_ LAT / LON P TABLE 0 _1_ 2 .5 .75 1.5 3 6 P TABLE _1_ SHORT 0 0 0 1 1 LONG 0 1 1 2 2 (a) (b)
72•• VRM Unit Setting VRM unit••NM: Nautical mile••KM: Kilometer••SM: Statute mileg) Water temperature Setting water temperatureunit°C: CelsiusF: Fahrenheith) Depth Unit Setting Depth unitM: MeterFT: FeetFM: Fathomi) EBL Mode Setting Mode of EBLREL: Relative bearing from HMTRUE: True bearingMAG: Magnetic bearingj) WayPoint Mode Setting WayPoint bearing modeTRUE: True bearingMAG: Magnetic bearingk) Heading Source Setting Heading source;NMEASIN/COS: Compass Data with SIN/COS signal12BIT: Compass Data with 12bits serial signal10BIT: Compass Data with 10bits serial signall) Heading Type Heading Information Type settingMAG: Magnetic bearingTRUE: True bearingm) Cross cursor position display ModeDIST/BRG: Range and Bearing indicationLAT/LON: Latitude and Longitude indicationn) Transmitting pulse width Pulse setting for Range (Note: )Note: P TABLEPUSLETYPE•0.25NM 0.5 0.75 NM NM1.5NM3NM6NM•12NMP TABLE 0 SHORT 0 0 0 0 0 1 2 LONG 0 0 0 1 1 2 2P TABLE 1 SHORT 0 0 • 0 011 2 LONG 0 0 1122 2P TABLE 2 SHORT 0 0 0 1 1 1 2 LONG 0 1 1222 2Note• RA40C Pulse width 0 : 0.12 uS, 1 : 0.3 uS, 2 : 0.8 uS ΡΑ41Χ/42Χ Πυλσε ωιδτη 0 : 0.08 uS, 1 : 0.25 uS, 2 : 0.8 uSHeading MarkerStern Marker.75.25HU
73
735.5.4.5.3 Changing the content of settings 2 (PRESET2) Refer to the section, “Changing the content of setting 1(PRESET1)”.a) Guard Zone Level Guard Zone Detection Level setting1: High Sensitivity, .. 7: Big Target Onlyb) Guard Zone Mode Guard Zone Detection Mode settingIN: Detect Target inOUT: Detect Target dissapearc) Hold Hold the radar picture for 30 seconds after switch to ST'BYThe EBL and VRM can be used in HOLD state.(Note1: )d) Display Unit Mode Display Unit Operation Mode settingRDR: Radar mode(normal)MONI: Monitor mode(for slave display use)NAV: Navigation mode(for DATA indicator use)e) External Buzzer External Buzzer control settingOFF: Buzzer offCONT: Continuous toneINT: Intermittent tonef) Bearing pulse/rot.(IN) Change the setting when connected to the other type ofradarg) Bearing pulse/rot.(OUT) Change the setting when connected to the other type ofradarh) Built-in simulator switch for Demonstrationi) Interference Rejection Reject the interference from the other radarOFF: IR OFFIR1: ON level 1IR2: ON level 2(a)a) Guard Zone Levelb) Guard Zone Modec) Holdd) Display Unit Modee) External Buzzer‚†j Bearing pulse/rot(IN)g) Bearing pulse/rot(OUT)h) Built-in Simulatori) Interference Rejectionj) Ship's Speedk) Indication Languagel) Scan speedPRESET2GZ LVL 1 2 3 4 5 6 7GZ MODE I N OUTHOLD ON OFFDISPLAY RDR MONI NAVIEXT BUZ OFF CONT INTIN P /R 1080 1024 2048 4096 360OUT P/R 1080 1024 2048 4096 360DEMO ON OFFIR OFF IR1 IR2SPD SET NMEA MANU 0.0KTLANGUAGE CHI DAN ENG FRE GERGRE ITA JPN KOR NORPOR RUS SPA SWE TURSCAN SPEED STD HIGHPRESS ENTER KEY TO RETURN
74j) Ship's Speed Own ship's speed settingNMEA: Data input from NMEA portMANU: Set ship's speed with manualSet the Speed with control knob.k) Indication Language Select the language for MENU and SOFT KEY( Note2: )l) Scan Speed Scanning speed settingSTD: StandardHIGH: High speed( The setting can be changed only on stand-by state.)Note1: HOLD function POWER • POWER key to pressHOLD is function which you want to hold the currently displayed radar screen conditionswhile standby state. After finished operation such as EBL, VRM about 30 seconds, the screenreturn to standby screen.Setting HOLD POWER •Operation• • • •Under Tx• -----------------------------------•<-------Under HOLDmode--->•<-----------ST’BY DISPLAY•••Turn to transmission offEBL,VRM operation:• seconds ••30seconds•Time used•NOTE) EBL and VRM function is usable in HOLDstate.Note 2: 15 languagesCHI : Chinese KOR : KoreanDAN : Danish NOR : NorwegianENG : English POR : PortugueseFRE : French RUS : RussianGER : German SPA : SpanishGRE : Greek SWE : SwedishITA : Italian TUR : TurkishJPN : JapaneseST’BYHOLD“HOLD” is displayed and blinks.Tx OFF X•30sec.SettingHOLDEBLs and VRMs can be usedfor measuring target data.
685.5.4.5 Changing the content of the setting (CUSTOM)Note) Items in CUSTOM are for conducting settings and adjustments at the time of installation,which need not be conducted normally.-Common operations for CUSTOMUse the up-down cursor keys to select CUSTOM after ”the common operations for the SETUP”menu, and press either the "ENT" key.MENU •→Left/Right →Up/Down →ENT(Select SETUP) (Select CUSTOM)Common operation for SETUPWhen the above operations have been conducted, 4 items, namely "KEY ASSIGN", "PRESET1","PRESET2" and "ADJUST", are displayed beside the CUSTOM item.Further explanation concerning the CUSTOM menu items will be done on the assumption that theabove "common operations for CUSTOM" have already been conducted. CUSTOM > SETUP WINDOW > SEL WIN > PICTURE > SYSTEM CHECK .75 .25 HU SkNAV ECHO SETUP SETUP >>> 0.23NM ATKEY ASSIGN PRESET1 PRESET2 NMEA PRESET ADJUST >
695.5.4.5.1 Changing the settings of soft keys (KEY ASSIGN)Conducting alterations and new settings for the functions of keys with number displays of 1-7.(1) Screen display for the settingWhen KEY ASSIGN has been selected with the up-down cursor keys from among the CUSTOMitems and the "ENT" key is pressed, the setting screen is displayed. (See chart below)(2) Selecting functionsReverse the items to be set using the up-down cursor keys. (The items become reverse inaccordance with the moving cursor.)(3) Key settings(3)-1 Making new settings (Example 1)For allocating the selected item to a soft key, press the key to be allocated. The selecteditem will be displayed beside the key, which indicates that the setting has been conducted.(3)-2 Changing the function of a key with an preset function (Example 2)When the allocated key is pressed, its function will be altered to the one selected in (1)above and the previous function will be canceled.The current settings for SET1-4 will be displayed below NEXT. In order to switch thesettings SET1-4, use the right-left cursor keys. (Double settings (setting 1 item for more 1 5 6 7 4 3 2KEY ASSIGNMENTEBL1 EBL2 RINGS PPIVRM1 VRM2 TUNE PPI/3DVAR RNG FL EBL2 ST PPI/PPITRACK FL VRM2 ZOOM PPI/NAVTARGET GZ SLEEP ALL PPISEL WIN OFF-C PICTURE ALL PPI2NEXT NEXT NEXT NEXTSET1 SET2 SET3 SET4MARK @EBL1 @VRM1 @EBL2 @VRM2 @FL EBL2 @FL VRM2 @HDG OFF @///CSR @RINGS @VAR RNG @TARGET @+MK LINENAV @MODE @GZ @OFF-C @SLEEPECHO @TUNE @ST @TRACK @ZOOM @S^LSETUP @SEL WIN @PICTURE @PPI @PPI/3D @PPI/PPI @PPI/NAV @ALL PPI @ALL PPI2 @NEXTKey GroupsMove with up-down cursor Move with right-left cursorMark is displayed when the function is set to a key. Operation panel Keys 1 - 7Soft Key Setting Screen
70than 1 key) are possible.)When settings are to be conducted for more than 1 key, repeat the operations (3)-1 to (3)-2.(Example 3)(4) Completing the settingAfter the setting has been finished, press the ENT key to exit from KEY ASSIGNMENT.Example of an operation(The process up to the selection of KEY ASSIGNMENT from the SETUP menu is omitted. Onlythe process after the above chart will be described.)Example 1) Altering OFF-C allocated to key 6 in setting 2 to HDG OFF.Up/Down → 6 →ENT ----------------------------Key 6 altered from Select HDG OFF The display beside key 6 Exit from OFF-C to HDG OFFchanges to HDG OFF KEY ASSIGNMENTExample 2) Re-allocate SEL WIN to key 1 in setting 2.Left/Right → Up/Down → 1 →ENT -------------------Key 1 in setting 2select SEL WIN SEL WIN is displayed Exit from is altered to SEL WINFrom SET1 beside key 1. KEY ASSIGNMENT to SET2Example 3) Alter key 1 in setting 1 from ST to HDG OFF and then reset key 1 in setting 2 as SEL WIN.Up/Down → 6 -------------- Key 6 altered fromSelect HDG OFF The display beside key 6 ST to HDG OFFchanges to HDG OFFLeft/Right →Up/Down → 1 →ENT ----------------------------KeySelect SEL WIN SEL WIN is displayed Exit from is altered to SEL WINFrom SET1 beside key 1. KEY ASSIGNMENT to SET2
685.5.4.5 Changing the content of the setting (CUSTOM)Note) Items in CUSTOM are for conducting settings and adjustments at the time of installation,which need not be conducted normally.-Common operations for CUSTOMUse the up-down cursor keys to select CUSTOM after ”the common operations for the SETUP”menu, and press either the "ENT" key.MENU •→Left/Right →Up/Down →ENT(Select SETUP) (Select CUSTOM)Common operation for SETUPWhen the above operations have been conducted, 4 items, namely "KEY ASSIGN", "PRESET1","PRESET2" and "ADJUST", are displayed beside the CUSTOM item.Further explanation concerning the CUSTOM menu items will be done on the assumption that theabove "common operations for CUSTOM" have already been conducted. CUSTOM > SETUP WINDOW > SEL WIN > PICTURE > SYSTEM CHECK .75 .25 HU SkNAV ECHO SETUP SETUP >>> 0.23NM ATKEY ASSIGN PRESET1 PRESET2 NMEA PRESET ADJUST >
695.5.4.5.1 Changing the settings of soft keys (KEY ASSIGN)Conducting alterations and new settings for the functions of keys with number displays of 1-7.(1) Screen display for the settingWhen KEY ASSIGN has been selected with the up-down cursor keys from among the CUSTOMitems and the "ENT" key is pressed, the setting screen is displayed. (See chart below)(2) Selecting functionsReverse the items to be set using the up-down cursor keys. (The items become reverse inaccordance with the moving cursor.)(3) Key settings(3)-1 Making new settings (Example 1)For allocating the selected item to a soft key, press the key to be allocated. The selecteditem will be displayed beside the key, which indicates that the setting has been conducted.(3)-2 Changing the function of a key with an preset function (Example 2)When the allocated key is pressed, its function will be altered to the one selected in (1)above and the previous function will be canceled.The current settings for SET1-4 will be displayed below NEXT. In order to switch thesettings SET1-4, use the right-left cursor keys. (Double settings (setting 1 item for more 1 5 6 7 4 3 2KEY ASSIGNMENTEBL1 EBL2 RINGS PPIVRM1 VRM2 TUNE PPI/3DVAR RNG FL EBL2 ST PPI/PPITRACK FL VRM2 ZOOM PPI/NAVTARGET GZ SLEEP ALL PPISEL WIN OFF-C PICTURE ALL PPI2NEXT NEXT NEXT NEXTSET1 SET2 SET3 SET4MARK @EBL1 @VRM1 @EBL2 @VRM2 @FL EBL2 @FL VRM2 @HDG OFF @///CSR @RINGS @VAR RNG @TARGET @+MK LINENAV @MODE @GZ @OFF-C @SLEEPECHO @TUNE @ST @TRACK @ZOOM @S^LSETUP @SEL WIN @PICTURE @PPI @PPI/3D @PPI/PPI @PPI/NAV @ALL PPI @ALL PPI2 @NEXTKey GroupsMove with up-down cursor Move with right-left cursorMark is displayed when the function is set to a key. Operation panel Keys 1 - 7Soft Key Setting Screen
70than 1 key) are possible.)When settings are to be conducted for more than 1 key, repeat the operations (3)-1 to (3)-2.(Example 3)(4) Completing the settingAfter the setting has been finished, press the ENT key to exit from KEY ASSIGNMENT.Example of an operation(The process up to the selection of KEY ASSIGNMENT from the SETUP menu is omitted. Onlythe process after the above chart will be described.)Example 1) Altering OFF-C allocated to key 6 in setting 2 to HDG OFF.Up/Down → 6 →ENT ----------------------------Key 6 altered from Select HDG OFF The display beside key 6 Exit from OFF-C to HDG OFFchanges to HDG OFF KEY ASSIGNMENTExample 2) Re-allocate SEL WIN to key 1 in setting 2.Left/Right → Up/Down → 1 →ENT -------------------Key 1 in setting 2select SEL WIN SEL WIN is displayed Exit from is altered to SEL WINFrom SET1 beside key 1. KEY ASSIGNMENT to SET2Example 3) Alter key 1 in setting 1 from ST to HDG OFF and then reset key 1 in setting 2 as SEL WIN.Up/Down → 6 -------------- Key 6 altered fromSelect HDG OFF The display beside key 6 ST to HDG OFFchanges to HDG OFFLeft/Right →Up/Down → 1 →ENT ----------------------------KeySelect SEL WIN SEL WIN is displayed Exit from is altered to SEL WINFrom SET1 beside key 1. KEY ASSIGNMENT to SET2
615.5.4 SETUP MenuTo be used for various settings and switching of the screen•Common operations for the SETUP menu (Up to the point when "SETUP" menu is selectedfrom the main menu)Press the "MENU" key and select "SETUP" from the displayed 4 main menus using the left-right cursor. (The contents of the selected MENU will appear on a pull-down display inaccordance with the movement of the left-right cursor.)MENU •••→• Left/Right (Select SETUP)When the above-mentioned operations have been conducted, the items of the SETUP menuare vertically displayed. Further explanation about the SETUP menu will be conducted on theassumption that this "common operation for the SETUP menu" has already been completed.5.5.4.1 Initiating the screen display (WINDOW)A function to switch the display method of the screen. A selection can be made fromamong the 7 patterns of screen arrangements, from the ordinary PPI display to the 2-screenPPI display, etc.a) PPI screenb) PPI screen & SEMI3D screenc) PPI screen & PPI screen (Range can be operate in each screen.)d) PPI screen & Navigation screene) All PPI screen (PPI, all the screen display.)f) All PPI screen & All PPI screen(PPI & PPI, all the screen display.)g) MOB screen(1) Use the up-down cursor keys to select WINDOW from among the pull-down display items,and press the "ENT" key.(2) Select a screen to be displayed with the up-down cursor keys from among the above 7items that are displayed beside the WINDOW item.(3) The setting will be completed when the "ENT" key is pressed after the selection.MARKWINDOW >SEL WIN >PICTURE >SYSTEM CHECKCUSTOM >. 75.25HU NAV ECHO SETUPSEMI3D / PPIPPI / PPIPPI / NAVALL PPIALL PPI/PPIMOB•••••SETUP•>>>>•0.23NMA
62Up/Down →ENT →Up/Down →(Select PPI• →ENT •a••select WINDOW• →(Select PPI+SEMI3D•→ENT •b•→(Select PPI+PPI• →ENT •c•→(Select PPI+NAV• →ENT •d•→(Select ALL PPI• →ENT •e•→(Select ALL PPI+PPI• →ENT•f•→(Select MOB• →ENT •g•-Limitation of screen operationSCREENITEM••• PPI/SEMI3DPPI/NAVPPI•PPI ALL PPI ALL PPI PPI MOBRANGE •••••×VRM1•EBL1 •••×××VRM2•EBL2 •••×××FL VRM2•EBL2 •×ו×××RINGS ON/OFF •••••×ZOOM•OFF CENT •×××××///CSR •••••×HDG OFF •••×•×STERN M •••••×NORTH M •••••×GAIN•STC•FTC •••×××TUNE •••×××ST •••×××GZ •••×××SEL WIN ×וו×TXON/OFF •••••×• • Independent control at time as two screen.•Switching the screen is necessary (SEL WIN)•• • It becomes simultaneous control at the time as two screen.• • It can be used only at the time of PPI screen.× • It can’t be used.- Screen modes and Operations
63(a) PPI ScreenAll functions can be used on this screen. D‚V‚T D‚Q‚T ‚g‚t { PPI S creen
64(b) PPI/SEMI3D ScreenIt becomes simultaneous control at the time astwo screen.Note: All controls, such as EBLs, VRMs effects bothscreen.The ZOOM, OFF-C, FL EBL2, and FL VRM2 couldnot be used on this mode. The "SEMI3D" screendisplays the center as ship's heading always.(c) PPI/PPI ScreenThe radar picture is refreshed two antenna scanning for each PPI screen. Un-refreshed screen picture is holded during the time.Note: The radar picture is refreshed with two scanning interval for each screen. Rightscreen picture is holded during refreshing left screen, left screen holded duringrefreshing right screen. When your ship navigates in high speed, use PPI screen toget fast refreshing picture.Note: Functions ZOOM, OFF-C, FL-EBL2, and FL-VRM2 can not be used on this screen.Note: The function RANGE, GAIN, STC, FTC, and GZ can be used for each screenindependently. The screen selected in "SEL WIN" that the range indicator displayed inreverse can be controlled.Note: The cross cursor displayed only on selected screen.-Operationa) Changing RANGE of LEFT screen1) When the RIGHT range indicator displayed in reverse, change to LEFT screen with"SEL WIN" function.2) Press ”RANGE UP” or ”RANGE DOWN” key to change the LEFT screen RANGE. D‚V‚T D‚Q‚T ‚g‚t ‚r { 280 320 000 040 080 PPI/SEM I3D Screen LEFT screen /--------/*******/--------/******/--------/****** t→→→→ RIGHT screen ******* /--------/******/--------/******/--------/ picture drawing(refreshed) displayed previous picture ( hold) .75 . 25 HU S 24 6 { G 55/35 S 35/AT F 35/AT LEFT screen selected .75 . 25 HU S 24 6 { G 55/35 S 35/AT F 35/AT GAIN adjustm ent for LEFT screen L e ft GAIN indicates in reverse
65b) Adjusting GAIN of LEFT screen.1) When the RIGHT range indicator displayed in reverse, change to LEFT screen with"SEL WIN" function.2) Press the "GAIN" key, "G50" will displayed in reverse and ready for adjusting GAIN.3) Adjust GAIN with the control knob. Adjust STC and FTC in a same manner as GAIN.Note: During adjustment of GAIN, STC, or FTC, radar picture refreshing is fixed to theadjusting screen. Approximately 5 seconds errapsed after adjustment, radar picturerefreshing is return to normal.c) Determining the distance with VRM1 on LEFTscreen.1) When the RIGHT range indicator is displayed inreverse, change to LEFT screen with "SEL WIN"function.2) Press the "VRM1" key, " " will be displayed inreverse and ready for adjusting VRM1.3) Determining the distance with the control knob.Note: If operate the VRM1 on the RIGHT screen, VRM1will move to the RIGHT screen.Operate VRM2, EBL1, or EBL2 in a same manner as VRM1.(d) PPI/NAV ScreenNote: The ZOOM, OFF-C, FL EBL2, and FL VRM2can not be used on this screen.(e) ALL PPI ScreenNote1: The RANGE, RINGS interval, and Display mode aredisplayed on the upper-left of the screen.Note2: When press the key except "MENU", "RANGEUP/DOWN", "BRILL", and "POWER", return to PPIscreen. G 55/35 S 35/AT F 35/AT 1 0.00N M Determining the distance with VRM1 on LEFT screen .75 .25 HU S 6 1 { D‚V‚T D‚Q‚T ‚g‚t ‚r { NAV DISPLAY WAY P 123.4 ‹ 6.8 ‚m‚l COURSE 2.38NM XT E <<< HDG 267.3 ‹T SPD 12.8KT TEMP 20.8 ‹C DEPTH 58.3M LAT/LON 34 ‹08 D22N 138 ‹02 D53E PPI/NAV screen { . 75 . 25 HU S ALL PPI screen 1 0.00NM
66(f) ALL PPI/PPI ScreenNote1: The RANGE, RINGS interval, and Display modeare displayed on the top of the screen.Note2: When press the key except "MENU", "RANGEUP/DOWN", "BRILL", and "POWER", return toPPI/PPI screen.Note3: The radar picture is refreshed with twoscanning interval for each screen. Right screenpicture is holded during refreshing left screen, leftscreen holded during refreshing right screen. Whenyour ship navigates in high speed, use PPI screen toget fast refreshing picture.(g) MOB ScreenThe MOB key has been pressed, the MOB position andship's position are displayed. If not, MOB position will bedisplayed with bars( --.- )Press MOB key to clear the MOB position and returnto previous screen. Press ENT key to return previousscreen with keeping the MOB position data.5.5.4.2 Switching screens on PPI/PPI screen ( SEL WIN )Switching to the desired screen for activation on a PPI/PPI screen display.The "SEL WIN" function is switches the activated screen to effect the operation such as,RANGE, GAIN, STC, FTC, VRM1/2, EBL1/2, and guard zone. The range indicator of activatedscreen is displayed in reverse.When "SEL WIN" is selected with the up-down cursor keys from among the pull- downdisplay items and the "ENT" key is pressed, activated screen will be changed to the oppositescreen.Up/Down →••• ......................................................the opposite screen activated•select SEL WIN• D‚V‚T D‚Q‚T ‚g‚t ‚r D‚Q‚T D‚P‚Q‚T { ALL PPI PPI screen MAN OVERBOARD MOB POS 35 ‹08 D42N 139 ‹03 D33E SHIP’S POS 37 ‹12 D42N 142 ‹04 D33E PRESS MOB KEY TO DATA CLEAR PRESS ENTER KEY TO RETURN Range display on the active screen become a reverse display .75 .25 S .5 .25 .75 .25 HU S .5 .25 .
675.5.4.3 Changing the color of screen (PICTURE)Changing the color of screen depending on weather and day / night environmentconditions will be effective for easy viewing .When "PICTURE" is selected with the up-down cursor keys from among the pull- downdisplay items, select "DAY" and press "ENT" key to set to day display. Night display appears if"NIGHT"is selectedUp/Down →ENT →Up/Down →(select DAY•→ENT → day display•select PICTURE•→(select NIGHT•→ENT → night display βλυε ψελλοω ωηιτε βλαχκ γρεεν ρεδ5.5.4.4 Fault Diagnosis by Self Check •SYSTEM CHECK)Verifying the problem point by SYSTEM CHECK when, for example, some abnormality hasoccurred.(1) Select SYSTEM CHECK from the pull-down display items using up-down cursor key, andpress the “ENT” key.(2) The system check screen will appear.While watching the screen , check the following:i) Whether all items are marked “OK”. (If any item is marked “NG”, the indicated locationmay be faulty.)ii) Press a front-panel key and see if the corresponding display on the screen ishighlighted.iii) Turn the control knob and see if the lower-right indicator move to right or left.(3) Press the POWER key to return to the previous screenDAY display NIGHT display 75. 25HU. 75. 25HU
68a) ROM----------------------------- Indicates the ROM status.b) RAM -------------------------------- Indicates the RAM status.•• Backup memory-------------- Indicates the backup memory status.•• Transmit trigger ------------- Indicates the signal line status for the trigger signal sent from the scannerunit.e• Bearing pulse------------------ Indicates the signal line status for the bearing signal sent fron the scannerunit.f) Heading pulse------------------- Indicates the signal line status for the bow signal sent from the scanner unit.g) +5V voltage---------------------- Indicates the reference voltage status of the video circuit and its voltagevalue. (at video circuit) (normally about 5 V)h) High voltage(at SU)---------- Indicates the status of th high voltage supplied from the display unit to thescanner unit and its voltag value (normally about 250 V) at scanner unit.i) High voltage(at DU) ---------- Indicates the status of th high voltage supplied from the display unit to thescanner unit and its voltag value (normally about 250 V) at display unit.j) Magnetron current----------Indicates the status of the anode current flowing in the magnetron and itscurrent value.k) Tuning voltage -------------- Indicates the status of the voltage used for tunning and its voltage value.l) Cumulative usage time ---- Indicates the cumulative time your radar is used.OPERATE : Duration of time during which the power supply is turned on.TRANSMIT : Duration of time transmitting.m) ROM version ---------------- Indicates the ROM software version.n) Front-panel keys------------ As you press any front-panel key when the SYSTEM CHECK screen is on,the corresponding key is highlighted on the screen by displaying it in reversevideo.RNG URNG DBRILLAUTOGAINSTCFTC 1 2 34 5 6 7MOBPOWERn)Indicates the operation status of front-panel keySYSTEM CHECK screenENTMENUIndicates the control knob status.Indicates the cursor status.CONTROL KNOBSYSTEM CHECKMEMORY CHECKa) ROM --------------------------------------- > ROM OKb) RAM---------------------------------------- > RAM OKc) Backup memory----------------------- > BACKUP OKSIGNAL CHECKd) Transmit trigger ----------------------- > (1) TRIGGER OKe) Bearing pulse -------------------------- > (2) AZIMUTH OKf) Heading pulse -------------------------- > (3) HM OKg) +5Vvoltage(at video circuit)------> (4) +5V OK 5.2Vh) High voltage(at scanner) ---------- > (5) H.T. AT SU OK 253.2Vi) High voltage(at display)------------- > (6) H.T. AT DU OK 253.2Vj) Magnetron current--------------------- > (7) MAG. CUR. OK 2.1k) Tuning voltage------------------------- > (8) TUNE OKl) Cumulative usage time-----------> HOURMETEROperation time --------------------- > OPERATE 12.0HTransmit time ---------------------- > TRANSMIT 10.3Hm) ROM version -----------------------> ROM VERSION V1.00PRESS POWER KEY TO RETURN
455.5 MENU Operation List of MENUList of Main MenuMARK(MAIN-MENU) NAV(MAIN-MENU) ECHO(MAIN-MENU) SETUP(MAIN-MENU)EBL1 ON/OFF GAIN AUTO/MANVRM1 ON/OFFMODE HU/HS/NU/CU/TM•MANU/NMEA•STC AUTO/MAN/HARBOREBL2 ON/OFF GZ ON/OFF FTC AUTO/MANWINDOW PPI/SEMI3D+PPI/PPI+PPI/PPI+NAV/ALLPPI/ALL PPI+PPI/MOBVRM2 ON/OFF OFF-C ON/OFF TUNE AUTO/MAN SEL WINFL EBL2 ON/OFF ST OFF/ST1/ST2 PICTURE DAY/NIGHTFL VRM2 ON/OFFSLEEP OFF/5min/10min/15min SYSTEM CHECKHDGOFFOFFTRACK OFF/15SEC/30SEC/1MIN/3MIN/6MIN/CONT///CSR ON/OFF ZOOM ON/OFFRINGS ON/OFF SL SHORT/LONGVARRNGON/OFFTARGE TCUSTOMKEY ASSIGNMENTPRESET1 (SUB-MENU)PRESET2 (SUB-MENU)ADJUST (SUB-MENU)+MKLINEON/OFFList of Custom MenuPRESET1 (SUB-MENU) PRESET2 (SUB-MENU)HM FLSH ON/OFF GZ LEVEL 1-7STERN M ON/OFF GZ MODE IN/OUTNORTH M ON/OFF HOLD ON/OFFST’BY NAVI/NOR DISPLAY RDR/MONI/NAVBUZ VOL OFF/LOW/HIGH EXT BUZ OFF / CONT / INTRM UNIT NM / KM / SM IN P/R 1080/1024/2048/4096/360DEPTH M / FT / FM OUT P/R 1080/1024/2048/4096/360TEMP °C / F DEMO ON / OFFEBL BRG REL / TRUE / MAG IR OFF / IR1 / IR2WP BRG TRUE / MAG SPD SET NMEA / MANU 0.0 KTHEAD INPUT NMEA / SIN•COS /12BIT / 10BIT LANGUAGE 15 countriesHEAD TRUE / MAG SCAN SPEED STD / HIGH+MK MODE DIST/BRG•/•LAT/LONP TABLE 0 - 2ADJUST (SUB-MENU)TIMING ADJHEAD ADJTUNING CAL.ANTENNA 1-9GAIN 1-30STC 1-16+ST’BY.75. 25HU STC > FTC > TUNE > ST > TRA CK ZOOM S/LMARK NAV ECHO SETUPECHOGAIN > MANAUTOMAIN-MENUSUB-MENU
465.5.1 Mark Menu xxx •keys to press Setting for markers and cursors•Common operations for the MARK menu (Up to the point when "MARK" menu is selected from the main menu)Press the "MENU" key and select "MARK" from the displayed 4 main menus using the left-right cursor. (The contents of the selected MENU will appear on a pull-down display inaccordance with the movement of the left-right cursor.)MENU →Left/Right (Select MARK)Further explanation about the MARK menu will be conducted on the assumption that this"common operation for the MARK menu" has already been completed.5.5.1.1 Bearing measurement (EBL1)(1) Select EBL1 from the pull-down display items using the up-down cursor key, and press the"ENT" key.(2) When the ON/OFF sign is displayed beside the EBL1 item, select ON with the up-down cursorkeys and press the "ENT" key.(3) When the "ENT" key is pressed, electric bearing line(EBL1) appears and the angle from the direction ofthe ship’s head which is set at 0 degree will appearin a reverse display at the lower left of the screen.(4) Place the marker on the center of the target with thecontrol knob and read the bearing. Then, thedisplay setting for EBL1 will be completed either(a)with the EBL1 display still on the screen if the"ENT" key is pressed, or (b)without the EBL1display if the "MENU" key is pressed. (c)Pressinganother function key will lead to the function ofthat key with the EBL1 display still on the screen.Note:• 1 xxx•xφindicates EBL1.Up/Down → ENT →Up/Down → ENT →Control knob → ENT (a)(Select EBL1) (Select ON) (EBL1 operation) µ>MENU (b) µ> Other function key (c)Note: The displayed EBL angle is relative to heading or true to north, depends on the settingof "EBL BRG" in the "SETUP" menu.MARKEBL1>VRM1 >EBL1 >.75.25HU NAV ECHO SETUPMARK>>> 0.23NMA. 75.25HU+1 0.0°OFFON
475.5.1.2 Determining the distance (VRM1)(1) Select VRM1 from the pull-down display items usingthe up-down cursor key, and press either the "ENT"key.(2) When the ON/OFF sign is displayed beside theVRM1 item, select ON with the up-down cursorkeys and press the "ENT" key.(3) When the "ENT" key is pressed, the variable rangemarker1 (VRM1) and the distance in a reversedisplay appears at the lower left of the screen (SeeNote), and the display is set for VRM1.(4) Place the marker on the front edge of the target withthe control knob and read the distance. Then, thedisplay setting for VRM1 will be completed either(a)with the VRM1 display still on the screen if the"ENT" key is pressed, or (b)without the VRM1display if the "MENU" key is pressed. (c)Pressinganother function key will lead to the function ofthat key with the VRM1 display still on the screen.Up/Down →ENT →Up/Down →• ENT •→Control knob → ENT(a)(Select VRM1) (Select ON) (VRM1 operation) µ>MENU (b) µ>Other function key(c)Note: 1 xx.xx NM indicates VRM1.5.5.1.3 Bearing measurement (EBL2)Refer to the section “Bearing measurement (EBL1)”.The "EBL2" will appear in a reverse display at the lower right of the screen.Note:• 2 xxx.xφindicates EBL2.5.5.1.4 Determining the distance (VRM2)Refer to the section “Determining the distance (VRM1)”.The "VRM2" will appear in a reverse display at the lower right of the screen.Note: 2 xx.xx NM indicates VRM2.5.5.1.5 Measuring the distance or angle between two points ( FL EBL2, FL VRM2 )Determining the distance (VRM2)(a) Preparation for the measurement(1) Use the up-down cursor keys to select FL VRM2 from among the pull-down display items,and press the "ENT" key.(2) Use the up-down cursor keys to select ON from the ON/OFF display beside the FL VRM2items, and press the "ENT" key. “SET START POINT” is displayed and a small cross mark.75.25HU+1 0.00NM
48appears. (Once this is set, the "ON" state continues unless changes are made.)Up/Down → ENT → Up/Down → ENT --------------------------------FL VRM2 is turned ON and(Select FL VRM2) (Select ON) the small cross mark appears.(b) Setting a reference point for measurement of the distanceUse the left-right and up-down cursor keys to place the small cross mark on one of the twoechoes whose distance will be measured, and press the "ENT" key. Up/Down & Left/Right →--------------------------- ENT Criterion of the reference point is set.(Place the cross cursor on an echo)(c) MeasuringPerform the operations in the above mentioned "Common operation for the MARK menu"and "measuring the distance(VRM2)", and place the VRM2 on another echo.VRM2 is displayed on the screen around the placed fixed cross cursor." 2 xx. xNM" which is displayed at the lower right will be the distance between the twopoints.Note: EBL2 and VRM2 are not follow to "ZOOM" and "OFF-C" function.5.5.1.6 Measuring the angle between two points (FL EBL2)(a) Preparation for the measurement(1) Use the up-down cursor keys to select FL EBL2 from among the pull-down display items,and press the "ENT" key.(2) Use the up-down cursor keys to select ON from the ON/OFF display beside the FL EBL2items, and press the "ENT" key. “SET START POINT” is displayed and a small cross markappears. (Once this is set, the "ON" state continues unless changes are made.)Up/Down → ENT → Up/Down → ENT --------------------------------FL EBL2 is turned ON and(Select FL EBL2) (Select ON) the small cross mark appears.(b) Setting a reference point for measurement of the angle.Use the left-right and up-down cursor keys to place the small cross mark on one of the twoechoes whose angle will be measured, and press the "ENT" key. Up/Down & Left/Right → ENT --- Criterion of the reference point is set.(Place the cross cursor on an echo) .75 .25 HU2•0.72NMplace the VRM2on anotherecho SET START POINT.75.25HUmeasure thedistance betweentwo targetssmall crossmarkFL VRM2 indicationof VRM2center ofVRM2
49(c) MeasuringPerform the operations in the above mentioned "Common operation for the MARK menu"and "measuring the distance(EBL2)", and place the EBL2 on another echo.EBL2 is displayed on the screen based on the placed fixed cross cursor." 2 xx. xxφ" which is displayed at the lower right will be the angle between the twopoints.Note: The displayed EBL angle is relative to heading or true to north, depends on the settingof "EBL BRG" in the "SETUP" menu.5.5.1.7 Erasing heading marker temporarily (HDG OFF)(1) Use the up-down cursor key to select HDG OFFfrom among the pulled down and displayed items.(2) Press the “ENT” key. The heading marker is notdisplayed as long as you hold it down.Up/Down → ENT ------------ The heading marker is not displayed as long as you hold “ENT” key down.(Select HDG OFF)5.5.1.8 Using parallel cursors (///CSR)Normally EBL is used to measure the exact bearing from the position of your ship to atarget. However, you can also use parallel cursors.(1) Use the up-down cursor key to select ///CSR fromamong the pull-down and display items, and press the“ENT” key.(ON/OFF display beside the ///CSR item)(2) Use the up-down cursor key to select ON .(3) Press the “ENT” key. Parallel cursors will appear onthe screen. As you move EBL, the parallel cursors alsomove. To cancel the ///CSR function, either select OFF in (2). .75 .25 HU.75.25HUNot displayed while ENTkeyihldd2•20.•°FL EBL2 SET START POINT.75.25HUOrigin ofEBL2measure the angle betweentwo pointsindicationof EBL2small cross markcross mark.75.25HUEBL1Parallel•c
50Up/Down → ENT →Up/Down (Select ON) →ENT -----------------------Parallel cursor appears(Select ///CSR) µ>Up/Down (Select OFF) →ENT -----------------Parallel cursor non-appearsNote: Interval of ///CSR same as fixed range marker.///CSR moves with EBL1.5.5.1.9 Establishment of the indication of the RANGE RINGS (RINGS)(1) Use the up-down cursor key to select RINGS from among the pull-down and display items, andpress the “ENT” key.(ON/OFF displayed beside the RINGS item)(2) Use the up-down key to select ON or OFF and press the “ENT” keySelect ON Range Rings ONSelect OFF Range rings OFFUp/Down → ENT --→Up/Down (Select ON) →ENT -----------------Range rings appears(Select RINGS) µ>Up/Down (Select OFF) →ENT -----------Range rings non-appears•Number of range rings and range interval•Radome antenna (RA40C)Range 0.125 •0.25 0.5 0.75 1.5 3 6 12 24Number of Rings222366666Interval 0.06250.125 0.25 0.25 0.25 0.5 1 2 4Radome antenna (RA41C)Range 0.125 0.25 0.5 0.75 1.5 3 6 12 24 36Number of Rings 2 2 23666668Interval 0.0625 0.125 0.25 0.25 0.25 0.5 1244Open antenna (RA42C)Range 0.125 0.25 0.5 0.75 1.5 3 6 12 24 48Number of Rings 2 2 23666668Interval 0.0625 0.125 0.25 0.25 0.25 0.5 12465.5.1.10 Variable range function ( VAR RNG )Usually the range changes in steps as 0.5--0.75--1.5--3.0--....., but using this function willenable a consecutive change such as 0.5--0.6--0.7--0.8--..... .(1) Use the up-down cursor keys to select VAR RNG from among the pulled down and displayed.75.25HU.75.25HURange rings Range rings OFF
51items, and press the "ENT" key.(2) When ON is selected with the up-down cursor key from the ON/OFF display beside the VARRNG item, and the "ENT" key is pressed, the VAR RNG function becomes valid and VAR willbe displayed at the upper left of the screen (beside MODE). Setting procedureUp/Down → ENT → Up/Down (Select ON) → ENT VAR RNG function is turned ON (Select VAR RNG) µ> Up/Down (Select OFF) → ENT VAR RNG function is turned OFF(3) The range changes continuously with pressing the up-down cursor while the VAR RNGfunction is on, and it changes in steps with the "RANGE UP" or "RANGE DOWN" keys. Method of useUp/Down ------------------------------------------- Range changes continuouslyRANGE UP & RANGE DOWN -------------- Range changes in step(4) To cancel the vari-range function, press a key except "RANGE UP" and "RANGE DOWN" key.When use the function, follow from (1) again.5.5.1.11 Output the position data of Cursor ( TARGET )Place the cross cursor to the position that is to output position data with up-down and left-right key.Use the up-down cursor keys to select TARGET from among the pull-down display items, andpress the "ENT" key. The L/L data of the position will be output to NMEA port with TLL format.Up/Down →••• •............................................ output the L/L position of the cursor(Select TARGET)Note: When activate this function, nothing happens on the screen.5.5.1.12 Follow the Distance and Bearing marker on the cursor (+MK LINE)(1) Use the up-down cursor keys to select +MK LINE from among the pulled down and displayeditems, and press the "ENT" key.(2) When ON is selected with the up-down cursor key from the ON/OFF display beside the +MKLINE item, and the "ENT" key is pressed, the +MK LINE function becomes valid, anddistance/bearing marker will be displayed at the cross cursor. Setting procedureUp/Down → ENT → Up/Down (Select ON) → ENT +MK LINE function is turned ON (Select +MK LINE) µ> Up/Down (Select OFF) → ENT +MK LINE function is turned OFF(3) The distance/bearing marker follows to the cross cursor until +MK LINE function is turnedOFF..75.25HU.75.25HU
52
25CHAPTER 4. FUNCTIONS AND NAMESFunction and name of each partThe RA40C/41C/42C radar consists of a display unit to display video images on ascreen and a scanner unit configured with an antenna to radiate radio waves and othercomponents. The display unit has on its front panel eighteen(18) push-switch keys andone cursor key that lets you move a cursor in any desired direction. A combination ofthese keys allows you to utilize all functions of your radar, providing a comfortable, easyway to operate.4.1 Key layout Key No. SET1 SET2 SET3 SET41 EBL1 EBL2 RINGS PPI2 VRM1 VRM2 TUNE PPI/3D3 VAR RNG FL EBL2 ST PPI/PPI4 TRACK FL VRM2 ZOOM PPI/NAV5 TARGET GZ SLEEP ALL PPI6 SEL WIN OFF-C PICTURE ALL PPI27 NEXT NEXT NEXT NEXTTab. 5 Function of soft key (Factory setting)*Every time Next key is pressed, soft key group switches as follows. Cursor key MENU key ENT key 3 1 HU s RANGE UP RANGE DOWN BRILL AUTO GAIN STC FTC MOB 1 2 3 4 5 6 7 POWER ENT MENU MOTOR 1:58 + POWER key Soft keys(* ) RADAR OFF Scanner Motor fuse Control knob RANGE Up key RANGE Down key BRILL key( Contrast Brilliance, keys backlight) AUTO key GAIN key STC key FTC key MOB key SET1 → SET2 → SET3 → SET4
264.2 Rear panel !!!! Power supply connectorUse this connector to plug in the power supply cable. Standard NMEA interfaceterminal is included in this connector. Refer to Section 3.7 “ Connecting Cables “and Section 3.9 “Connecting External Equipment to Display Unit “."""" Grounding terminalUse this terminal to connect grounding wire. Refer to Section 3.7 (3) “Groundingwire”.#### Option connectorUse this connector to connect NMEA, an external monitor, external buzzer andGYRO I/F. A dedicated cable or dedicated module box is required to connect thesepieces of equipment. Refer to Section 3.9 “Connecting External Equipment toDisplay Unit”.$$$$ Scanner connectorUse this connector to plug in the inter-connecting cable to connect the scannerunit. Refer to 3.7 “Connecting cable “.4.3 Radar screen•Single screen• SCANNER POWER OPTION Ship’s position EBL2 VRM2 Indicate soft key 3 1 HU L 1:58 + RADAR OFF EBL1 VRM1 EBL2 VRM2 FL EBL2 FL VRM2 NEXT A HOLD ZOOM OFF-C LAT/LON 35°08 D42N 139°02 D53E 2 129 D8° 212D34NM 0.23NM HDG 129.0 °T SPD 12.0 KT G 59 S AT F AT ST1 GZ IN TK 15 S WP 134.4 ° 12.5NM +LAT/LON 35°08.42N 139°02.53E 1 129.8° 1 12.3NM Tune meter Picture hold Zoom Off-center Range Range ring interval Display mode Heading angle Cruising speed Enlarging echo Guard zone Track Way point EBL1 VRM1 Pulse width Course error Gain STC FTC Cross cursor Cross cursor position (LAT/LON or Distance/Bearing j !Power supply connector"Grounding terminal$Scanner connector #Option connector
274.4 Radar screen (Dual screen) ex) PPI/PPI screen4.5 Radar screen (All PPI screen) Tune meter Picture hold Indicate soft key SPD 12.8KT GZ R IN WAY P 134.4° HDG 129.2° GZ L IN 12.5NM +MK 38.4° ST1 LAT 35°08.42N 2 129.8 ‹ 5.28 TK 15S LON 139°02.53 ‚d 2 3.62NM 6 1.0_ HU L .75 .25 EBL1 VRM1 EBL2 VRM2 FL EBL2 FL VRM2 NEXT A HOLD 0.23 XTE >>> 1 129.8° 1 12.34NM AT1 G 59 / AT S AT / AT F AT / AT Range(Left screen) Range(Right screen) Range ring interval Range ring interval (Left screen) (Right screen) Display mode Pulse width Cross cursor Course error EBL1 VRM1 + Cruising speed Guard zone(Right screen) Way point Heading angle Guard zone(Left screen) Cross coursor position Enlarging echo Ship’s position VRM2 (LAT/LON or Distance/Bearing) Track EBL2 AUTO (Left/Right) Gain (Left/Right) STC (Left/Right) FTC (Left/Right) 3 1 HU L GZ IN 1:58 + RADAR OFF OFF-C HOLD ZOOM Off-center Picture hold Zoom Range Range ring interval Display mode Guard Zone Pulse width Cross cursor
284.6 Radar screen (All PPI /PPI screen) 4.7 Navigation screen It is necessary that navigation equipment such as a GPS is connected to yourradar, this screen displays the position and cruising speed of your ship, seawatertemperature, and other navigation information.Note: Heading angle will be displayed "COG" when Course Over Ground data isused.Note: Cruising speed will be displayed "SOG" when Speed Over Ground data isused. Picture hold Gurad zone(Right screen) Guard zone(Left screen) 6 1.0_ HU L GZ IN .75 .25 GZ IN HOLD Range(Left screen) Range(Right screen) Range ring interval Range ring interval (Left screen) (Right screen) + Display mode Pulse width Cross cursor NAV DISPLAYWP 134.4°°°°COURSE12.5NM >>>HDG 129.0°°°°0.23NMSPD 12.8KTLAT 35°°°°08.42NLON 139.02.53ETEMP 20.5°°°°CDEPTH 93.2MST’BYWay pointHeading angleCruising speedCurrent positionSea water temperatureDepth of waterCourse error@@(XTE)
29> Indicates starboarding the helm (right)< Indicates porting the helm (left)Deviation from course Indication mark0.00 -- ><0.02 -- > or <0.04 -- >> or <<0.08 -- >>> or <<<0.16 -- >>>> or <<<<Tab.6 Indication of deviation from course
79CHAPTER 6. MAINTENANCE AND INSPECTIONMost of maintenance of this radar should be referred to qualified personnel. Ifradar has any problem, contact your dealer and tell us that problem.There are high voltage circuits inside of this radar.Do not attempt to open the rear cover of displayunit or disassemble internal parts. When you openthe radome, power must be off.Even power switch is OFF, this radar is still sup-plied power inside.The following table shows the maintenance by user. Please check periodically.Tab. 6-1 Maintenance*: Use grease for plastics for RA40C/41C. If you use other type of grease(not for plastics),it may break antennaConcerning ConsumableThe radar uses consumable as listed below that require periodic replacement.(1) MagnetronThis part is mounted in the scanner unit. If distant echo images havebecome less visible, the magnetron probably may have degraded. In such acase, replace it. Consult your distributor for replacement of this part.Period of the replacement : 3000hour(typ.) (500hour guarantee)(2) LCD back-lightThis part is mounted in the display unit. If the display screen is ex-tremely dark and its illumination cannot be corrected by adjusting bright-ness, the LCD back-light may be faulty or may have burnt out. In such acase, replace it. Consult your distributor for replacement of this part.Period of the replacement : 15000hour(typ.) (1000hour at 0•)Inspection Interval Inspection Item Method of Inspection and Maintenance3-6 months Rust and loosenessin scanner unit Check whether the scanner’s fitting bolts arecorroded or less.Display screen ofLCD display Clean filter and LCD screen surfaces with asoft and wet cloth.6-12 months Grease* applicationto antenna drivegearApply an even coating of grease* to the entiresurface of the antenna drive gear with a spat-ula or brush.Check for contactof connectors Check whether connectors are contactedproperly. If any connector is improperly con-tacted or stained, correct it by using a contactrestoring chemical agent or by polishing orreplace with a new one if necessary.Antenna motor brush(RA42C) Check the length of brushes. If the length isunder 6mm, change them to new one.!WARNING
80(3) Fuse The fuse is built inthe power supply cable.If the fuse appears to beblown, check the fuse. Ifblown, replace itfollowing the procedureshown in Fig.6-2.Note: Before maintenance of scanner, you can hang a radome(upper) using cordthrough hole as follows.Fig. 6-3 Method for replacing fuse Push Power supply cable Wire(White) Turn counterclockwise and pull Fuse Spring Push and turn clockwise Replace new fuse To display unit Fig. 6-2 Method for replacing fuseFixing screwHoleA: Top viewCordCordARadome(Upper)Radome(bottom)
79CHAPTER 6. MAINTENANCE AND INSPECTIONMost of maintenance of this radar should be referred to qualified personnel. Ifradar has any problem, contact your dealer and tell us that problem.There are high voltage circuits inside of this radar.Do not attempt to open the rear cover of displayunit or disassemble internal parts. When you openthe radome, power must be off.Even power switch is OFF, this radar is still sup-plied power inside.The following table shows the maintenance by user. Please check periodically.Tab. 6-1 Maintenance*: Use grease for plastics for RA40C/41C. If you use other type of grease(not for plastics),it may break antennaConcerning ConsumableThe radar uses consumable as listed below that require periodic replacement.(1) MagnetronThis part is mounted in the scanner unit. If distant echo images havebecome less visible, the magnetron probably may have degraded. In such acase, replace it. Consult your distributor for replacement of this part.Period of the replacement : 3000hour(typ.) (500hour guarantee)(2) LCD back-lightThis part is mounted in the display unit. If the display screen is ex-tremely dark and its illumination cannot be corrected by adjusting bright-ness, the LCD back-light may be faulty or may have burnt out. In such acase, replace it. Consult your distributor for replacement of this part.Period of the replacement : 15000hour(typ.) (1000hour at 0•)Inspection Interval Inspection Item Method of Inspection and Maintenance3-6 months Rust and loosenessin scanner unit Check whether the scanner’s fitting bolts arecorroded or less.Display screen ofLCD display Clean filter and LCD screen surfaces with asoft and wet cloth.6-12 months Grease* applicationto antenna drivegearApply an even coating of grease* to the entiresurface of the antenna drive gear with a spat-ula or brush.Check for contactof connectors Check whether connectors are contactedproperly. If any connector is improperly con-tacted or stained, correct it by using a contactrestoring chemical agent or by polishing orreplace with a new one if necessary.Antenna motor brush(RA42C) Check the length of brushes. If the length isunder 6mm, change them to new one.!WARNING
80(3) Fuse The fuse is built inthe power supply cable.If the fuse appears to beblown, check the fuse. Ifblown, replace itfollowing the procedureshown in Fig.6-2.Note: Before maintenance of scanner, you can hang a radome(upper) using cordthrough hole as follows.Fig. 6-3 Method for replacing fuse Push Power supply cable Wire(White) Turn counterclockwise and pull Fuse Spring Push and turn clockwise Replace new fuse To display unit Fig. 6-2 Method for replacing fuseFixing screwHoleA: Top viewCordCordARadome(Upper)Radome(bottom)
81CHAPTER 7. TROUBLESHOOTINGThis chapter explains how to identify trouble locations when the radar is foundfaulty and how to request repair.It happens any disorder, keep pressing POWER key for 3 sec. to power off. Thenwait over 10 sec., when you power on again.If you find the radar is faulty, check it the following procedure described below.If you find as a result of inspection that the fault cannot be repaired on board, con-tact your distributor for repair.For faster service, please let us know about followings when you request repair:(1) Ship's name, place of anchorage, allowable repair period or time(2) Radar type (This radar is RA40C, RA41C or RA42C.)(3) Manufacturing number (indicated on the back of the display unit)(4) Fault symptoms and inspection resultsThere are high voltage circuits inside of this radar.Do not attempt to open the rear cover of displayunit or disassemble internal parts. When you openthe radome for installation, power must be off.Even power switch is OFF, this radar is still sup-plied power inside.This chapter explains how to identify trouble locations when the radar is foundfaulty and how to request repair.7.1 Fault Diagnosis by Self-check The radar incorporates a failure diagnostic function (called "self-check") to diag-nose faults by the equipment itself. Refer to "5.5.4.4 Fault Diagnosis by Self Check (SYSTEM CHECK)" and checkwhether there is any fault in your radar.7.2 Inspecting Each Part !WARNING
82When you have finished self-check, inspect each part of the radar according toTab.7-1.Tab. 7-1 TroubleshootingSymptom Cause Corrective action(1) Radar cannot be poweredon. Power cable is disconnected. Connect power cable correctly.Power supply voltage is offspecified value Use Specified power supply.(See Section 3.2)Fuse in power cable is blown. Replace fuse. (See Chapter 6)(2) Nothing is displayed al-though radar is powered on. Brightness or contrast are im-properly adjustment. Use BRIL key to adjust. (SeeSection 5.3.)LCD is faulty. Contact your dealer.(3) Screen is dark. Brightness is improperly ad-justed. Use BRIL key to adjust. (SeeSection 5.3.Backlight is faulty. Contact your dealer.(4) Video does not appear al-though characters are displayed. Interconnecting cable is out ofplace. Connect interconnecting cablecorrectly.(5) Echo image on screen differsfrom actual image. Ship’s heading is incorrectly set. Set ship’s heading correctly.(See Section 5.5.4.5.4)Timing adjustment is incorrectlyset. Set timing adjustment correctly.(See Section 5.5.4.5.4)(6) Echo images are blurred. GAIN, STC, or FTC is improp-erly set. Adjust. (See Section 5.3.6 to5.3.8.)Magnetron has degraded. Contact your dealer.(7) Too much noise. Radar is not tuned correctly Adjust TUNE. (See Section5.5.3.4)Radar is not grounded to earth. Connect grounding wire. (SeeSection 3.4 to 3.6.)(8) Not responded when key ispressed. Panel keys are not contacting. Contact your dealer.Power supply circuit is faulty. Contact your dealer.
83CHAPTER 8. PRODUCT SPECIFICATIONS8.1 General Type: RA40C, RA41C and RA42CPower supply voltage and power consumption••••Power supply voltage: 24Vdc (nominal)(10.2 to 41.6 Vdc)••••Power consumption: 55 W or less (RA40C/41C)70 W or less (RA42C)Distance range: 0.125 to 24 NM, 9 ranges (RA40C)0.125 to 36 NM, 10 ranges (RA41C)0.125 to 48 NM, 10 ranges (RA42C)(Continual variable range also possible)Distance resolution: Within 30 m (RA40C)Within 25 m (RA41C/42C)Distance accuracy: Better than 0.9% ofmaximum range of the scale in use, or8m, whichever is the greaterMinimum detecting distance: Within 30 m (RA40C)Within 25 m (RA41C/42C)Bearing resolution: Within 7.5°(RA40C)Within 4.5° (RA41C)Within 3.0° (RA42C)Bearing accuracy: 1° or lessWarm-up time: 2 minutesEnvironment conditions•••Ambient temperature range (S/U): -25 to 55 °C (D/U): 0 to 55 °C Humidity: 93% RH at +40 °C Vibration: (S/U): 3 mm( 300 to 500 rpm)1.2 mm(500 to 1500 rpm)0.3 mm(1500 to 3000 rpm)14.7m/s2(1.5G) Resonancetest (D/U): 3 mm(300 to 500 rpm) 0.75 mm(500 to 1500rpm) 0.2 mm(1500 to 3000
84rpm) Wind resistance: 100 knots (max.) Waterproof standard: (D/U): IPX-5(S/U): IPX-6Interconnecting cable: 30 m in max. (RA40C)100 m in max. (RA41C/42C)Noise: (D/U): 65 dB or less(S/U): 65 dB or less (RA40C/41C)(S/U): 70 dB or less (RA42C)
858.2 Scanner Unit Type: RB714A (RA40C)RB715A (RA41C)RB716A (RA42C)Antenna type: Parabolic (RA40C)Slotted-array (RA41C/42C)Antenna characteristics Beam width (horizontal): 6.0° ± 1.0° (RA40C)3.9°(RA41C)2.5° ± 0.3°(RA42C with 3ft antenna)1.8° ± 0.2° (RA42C with 4ft antenna) Beam width (vertical): 25° (typ.) (RA40C/41C)22° (typ.) (RA42C with 3/4ft antenna)Pulse width and peak power output:•RA40C RA41C/42CPulse width (µsec) Peak Power (kW) Pulse width (µsec) Peak Power (kW)0.12 ± 0.02 1.5 (±50% ) 0.08 4 (-50% to +20%)0.3 ± 0.05 2.0 (±50% ) 0.25 4 (-50% to +20%)0.8 ± 0.1 2.0 (±50% ) 0.8 4 (-50% to +20%)Radio wave type and frequency: P0N, 9445 ± 30 MHz (RA40C)P0N, 9410 ± 30 MHz (RA41C/42C)Antenna revolution: 24 rpm ± 20%Transmit/receive switching: Magic T and limiter type (RA40C)Circulator and limiter type (RA41C/42C)Intermediate frequency: 60 MHz (logarithmic amplifier)Noise figure: 6.5 dB or less8.3 Display Unit Type: RF719AIndication system: PPI, PPI+semi-3D,Split radar rangeIndicator: 10-inch color LCD(TFT)640 x 480 dotsFour(4 ) levels
86Cursor Control: Analog cursor keyand rotary encoderVRM: 2 lines (One line can be offset.)Unit of distance can beselected from NM, KM, andSM.EBL: 2 lines (One line can be offset.)Display modes: HU, HS, NU, CU, and TMOff-center: Can be 100% off-centered overthe full range.Guard zone: Can be set at any desireddistance and angle in anydesired width. IN and OUTmodes are available.Stretch: 2 modesEcho track: 15, 30 sec, 1, 3, 6 min. andcontinuous.Other functions: Interference rejection, Zoom,Sleep mode,Hold mode, Course errordisplay,Parallel cursors, Stern marker,and Navigation data display modePanel brightness: 4 levelsLanguage support: Chinese, Danish, English,French, German, Greek,Italian, Japanese, Korean,Norwegian, Portuguese,Russian, Spanish, Swedish,and Turkish8.4 External Interface NMEA0183: 2 channels(One standard channel;Optional cable is required for2nd-channel connections)L / L GGA, GLL, RMA, RMCHeading HDT, HDG, HDM, HSC,VHW, VTGSpeed VHW, VTG, RMA, RMCWay point RMB, BEC, BWC,BWR, BER, BPIDepth DBT, DPTCourse error RMB, XTE
87Seawater temperature MTWOthers (using optional cable):External buzzer control output, Auxiliary indicator connecting signaloutput and input, Bow direction signal input(SIN/COS signals), andcompass interface (10/12 bits serial)8.5 Standard set Display unit 1Scanner unit 1Display cover 1Fuse 1 setInterconnecting cable 1 (10m)Power supply cable 1 (2m)M10 hexagonal bolt 4 sets (for RA40C/41C)M12 hexagonal bolt 4 sets (for RA42C)8.6 Options Interconnecting cable (15, 20, and 30 m for RA40C)Interconnecting cable (15, 20, and 25 m for RA41C/42C)Flush-mount installation kitJunction box for external connection (with cable 1.5m)Option connector kit 249J1530588.7 External dimensions and weight See APPENDIX8.8 External Connection and function X1 Connector for Option pin No. Name function 1 NMEA2-A NMEA ch2 data input(A)19 NMEA2-B NMEA ch2 data input(B)2GND20 EXBUZ+ Output for External Buzzer3 EXBUZ- Output for External Buzzercontrolled ship's power output21 VIDEO_IN Video input for Monitor operation0 to -1V negative video, Zi = 50ohm4 VIDEO_OUT Video output for External Monitor0 to -1V negative video, Zo = 50ohm22 GND5 TRIG_IN Trigger signal input for Monitor operation0 to 5V positive pulse, rising edge23 TRIG_OUT Trigger output for External Monitor0 to 5V positive pulse, rising edge6 SHF_IN Heading signal input for Monitor operation0 to 5V negative pulse, falling edge24 SHF_OUT Heading signal output for External Monitor0 to 5V negative pulse, falling edge7 AZI_IN Bearing Pulse input for Monitor operation0 to 5V positive pulse, rising edge25 AZI_OUT Bearing Pulse output for External Monitor
880 to 5V positive pulse, rising edge8GND26 GYRCK+ Gyro Interface clock(+) input9 GYRCK- Gyro Interface clock(-) inputapply 5V pulse between (+) and (-), isolated27 GYRDT+ Gyro Interface data(+) input10 GYRDT- Gyro Interface data(-) inputapply 5V pulse between (+) and (-), isolated28 GND11 MARK_I External Marker signal input, ex) Radar Buoynegative video, 0 to -1V Zi = 50ohm29 +12V External interface power, 100mA max.12 SIN Compass Interface for SIN/COS type30 COS Compass Interface for SIN/COS type13 REF Compass Interface for SIN/COS typeSIN/COS signal: SIN = REF+/-1V, COS = REF+/-1V31 -- not used14 GND32 NMEA_OUT NMEA data output, ex) MOB data, TARGET data

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