Axell Wireless 50-0253SERIES UHF Signal Extender User Manual RECEIVER MULTICOUPLER

Axell Wireless UHF Signal Extender RECEIVER MULTICOUPLER

manual

9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-1 of 699 Channel, ChannelisedUHF Cell EnhancerMaintenance HandbookForTerry ConsultingAFL Works Order N.: Q10965AFL product part N.: 50-025301
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-2 of 69Table of ContentsAMENDMENT LIST RECORD SHEET ................................................................................................. 5INTRODUCTION ....................................................................................................................................... 6Scope...........................................................................................................................................................................6Purpose.......................................................................................................................................................................6Glossary of Terms .....................................................................................................................................................7Key to AFL RF Module Drawing Symbols.............................................................................................................81. SAFETY CONSIDERATIONS ....................................................................................................... 91.1 Earthing of Equipment................................................................................................................................91.2 Electric Shock Hazard .................................................................................................................................91.3 RF Radiation Hazard...................................................................................................................................91.4 Chemical Hazard........................................................................................................................................101.5 Emergency Contact Numbers ...................................................................................................................102. OVERVIEW/SYSTEM DESCRIPTION ..................................................................................... 113. SPECIFICATION .......................................................................................................................... 123.1 9 Channel Channelised Cell Enhancer 50-025301 Parts Lists ...............................................................123.1.1 VTA-Downlink Duplexer Shelf 50-025302 Parts List ............................................................................123.1.2 VTA Downlink Amplifier Shelf 50-025303 Parts List............................................................................133.1.3 VTA Downlink Channel Shelf 50-025304 Parts List ..............................................................................143.1.4 VTA Uplink Duplexer Shelf 50-025305 Parts List..................................................................................143.1.5 VTA Uplink Amplifier Shelf 50-025306 Parts List.................................................................................153.2 Technical Specification ..............................................................................................................................163.3 Mechanical Specification ...........................................................................................................................174. SYSTEM DRAWINGS .................................................................................................................. 184.1 Drg. Nō. 50-025381, Channelised CE System Diagram..........................................................................185. SUB-UNIT MODULES .................................................................................................................. 195.1 VTA Downlink Duplexer Shelf 60-025302 (4U chassis)..........................................................................195.1.1 Bandpass Filters (02-011204 & 02-013401)............................................................................................195.1.1.1 Description.......................................................................................................................................195.1.1.2 Technical Specification (02-011204) ...............................................................................................195.1.1.3 Technical Specification (02-013401) ...............................................................................................195.2 VTA Downlink Amplifier Shelf (50-025303, 8U Chassis).......................................................................205.2.1 UHF 3dB Splitter (05-002603) ................................................................................................................205.2.1.1 Description.......................................................................................................................................205.2.1.2 Technical Specification ....................................................................................................................205.2.2 ¼Watt 0- -30dB Switched Attenuator (10-000701).................................................................................205.2.2.1 General Application .........................................................................................................................205.2.2.2 Switched Attenuators........................................................................................................................205.2.3 Low Noise Amplifier (11-006102) ..........................................................................................................215.2.3.1 Description.......................................................................................................................................215.2.3.2 Technical Specification ....................................................................................................................215.2.3.3 Drg. Nō. 11-006170, LNA Circuit Diagram (RF)............................................................................225.2.3.4 Drg. Nō. 11-006171, LNA Schematic Diagram (DC) ......................................................................235.2.4 Low Noise Amplifiers (11-007302 & 11-007402) ..................................................................................245.2.4.1 Description.......................................................................................................................................245.2.4.2 Technical Specification, (11-007302) ..............................................................................................245.2.4.3 Technical Specification (11-007402) ...............................................................................................245.2.4.4 Drg. Nō. 11-007302, LNA Assembly With Alarm Relay ..................................................................255.2.4.5 Drg. Nō. 11-007370, LNA RF Circuit Diagram...............................................................................265.2.4.6 Drg. Nō. 11-007371, LNA DC Wiring Diagram ..............................................................................275.2.5.7 Drg. Nō. 11-003971, LNA DC Circuit Diagram..............................................................................285.2.6 3 Stage Amplifier Alarm Boards (12-002201).........................................................................................295.2.6.1 Description.......................................................................................................................................29
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-3 of 695.2.6.2 Technical Specification ....................................................................................................................305.2.6.3 Drg. Nō. 12-002201, 3 Stage Alarm Board Assembly Drawing & Parts List..................................315.2.6.4 Drg. Nō. 12-002270, 3 Stage Alarm Board Circuit Diagram..........................................................325.2.6.5 Generic Rack Shelf Enclosure Alarm Wiring Sketch .......................................................................335.2.7 450MHz 20W Power Amplifier (12-004201)..........................................................................................355.2.7.1 Description.......................................................................................................................................355.2.7.2 Technical Specification ....................................................................................................................355.2.7.3 Drg. Nō. 12-004201, PA General Assembly ....................................................................................365.2.7.4 Drg. Nō. 12-004270, PA Circuit Diagram.......................................................................................375.2.7.5 Drg. Nō. 12-004270C1, PA Parts List(1).........................................................................................385.2.7.6 Drg. Nō. 12-004270C2, PA Parts List(2).........................................................................................395.2.7.7 Drg. Nō. 12-003670, PA to Alarm Wiring Details...........................................................................405.2.8 Single DC/DC Converter (13-001702) ....................................................................................................415.2.8.1 Description.......................................................................................................................................415.2.8.2 Technical Specification ....................................................................................................................415.2.8.3 Drg. Nō. 13-001702, 12.8V Regulator Assembly Drawing & Parts List .........................................425.2.8.4 Drg. Nō. 13-001771, 12.8V Single Regulator Circuit Diagram ......................................................435.2.9 24V Single Relay Board (80-008902)......................................................................................................445.2.9.1 Description.......................................................................................................................................445.2.9.2 Drg. Nō. 80-008970, Single Relay Board Circuit Diagram.............................................................455.2.10 24V 410W Power Supply (96-300054)................................................................................................465.2.10.1 Description ...................................................................................................................................465.2.10.2 Technical Specification ................................................................................................................465.3 VTA Downlink Channel Shelf (50-025304)..............................................................................................475.3.1 UHF 3dB Splitter (05-002603) See section 5.2.1 ....................................................................................475.3.2 4-Way Splitter (05-003401) .....................................................................................................................475.3.2.1 Description.......................................................................................................................................475.3.2.2 Technical Specification ....................................................................................................................475.3.3 Channel Control Module (17-002101).....................................................................................................485.3.3.1 Description.......................................................................................................................................485.3.3.2 Technical Specification ....................................................................................................................485.3.3.3 VHF/ UHF Programming Procedure ..............................................................................................495.3.3.4 VHF/ UHF Programming Example .................................................................................................505.3.4 Channel Selectivity Module (17-010601) ................................................................................................515.3.4.1 Description.......................................................................................................................................515.3.4.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram .....................................................525.4 VTA Uplink Duplexer Shelf (50-025305, 4U Chassis) ............................................................................535.4.1 Bandpass Filters (02-011204 & 02-013401) See section 5.1.1................................................................535.5 VTA Uplink Amplifier Shelf (50-025306, 8U Chassis)............................................................................535.5.1 20Watt Class A Power Amplifier (12-016301)........................................................................................535.5.1.1 Description.......................................................................................................................................535.5.1.2 Technical Specification ....................................................................................................................535.5.1.3 Drg. Nō. 12-016370, 20W PA Circuit Diagram ..............................................................................545.5.2 Automatic Gain Control (17-001101, Det. & 17-001201, Atten.)...........................................................555.5.2.1 Description.......................................................................................................................................555.5.2.2 Technical Specification ....................................................................................................................565.5.2.3 Drg. Nō. 17-001101, ACG Detector Assembly ................................................................................575.5.2.4 Drg. Nō. 17-001171, AGC Detector Circuit Diagram.....................................................................585.5.2.5 Drg. Nō. 17-001171C, AGC Detector Parts List .............................................................................595.5.2.6 Drg. Nō. 17-001201, AGC Attenuator Assembly Drawing ..............................................................605.5.2.7 Drg. Nō. 17-001270, AGC Attenuator Circuit Diagram..................................................................615.5.2.8 Drg. Nō. 17-001270C, AGC Attenuator Parts List ..........................................................................626. INSTALLATION............................................................................................................................ 636.1 Initial Installation Record .........................................................................................................................637. MAINTENANCE............................................................................................................................ 647.1 General Procedures....................................................................................................................................647.1.1 Basic Fault Finding ..................................................................................................................................64
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-4 of 697.1.2 Downlink..................................................................................................................................................657.1.3 Uplink.......................................................................................................................................................657.1.4 Fault repair ...............................................................................................................................................657.1.5 Checking service ......................................................................................................................................667.1.6 Service Support ........................................................................................................................................667.2 Tools & Test Equipment............................................................................................................................667.3 Care of Modules .........................................................................................................................................677.3.1 General Comments...................................................................................................................................677.3.2 Module Removal (LNA’s, general procedure): .......................................................................................677.3.3 Module Replacement (general): ...............................................................................................................677.3.4 Power Amplifiers .....................................................................................................................................677.3.5 Low Power Amplifier Replacement.........................................................................................................687.3.6 Module Transportation:............................................................................................................................68APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS............................................... 69
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-5 of 69AMENDMENT LIST RECORD SHEETIssueNō.Date IncorporatedbyPage No.’sAmendedReason for new issue1 04/08/2003 CMH 1st IssueDocument Ref:-50-025301HBKM
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-6 of 69INTRODUCTIONScopeThis handbook is for use solely with the equipment identified by the AFL Part Numbershown on the front cover. It is not to be used with any other equipment unless specificallyauthorised by Aerial Facilities Limited. This is a controlled release document and, as such,becomes a part of Aerial Facilities’ Total Quality Management System. Alterations andmodification may therefore only be performed by Aerial Facilities Ltd.PurposeThe purpose of this handbook is to provide the user/maintainer with sufficient informationto service and repair the equipment to the level agreed. Maintenance and adjustments to anydeeper level must be performed by AFL, normally at the company’s repair facility inChesham, England.This handbook has been prepared in accordance with BS 4884, and AFL’s Qualityprocedures, which maintain the company’s registration to ISO 9001: 1994 and to theR&TTE Directive of the European Parliament. Copies of the relevant certificates and thecompany Quality Manual can be supplied on application to the Quality Manager.This document fulfils the relevant requirements of Article 6 of the R&TTE Directive.Limitation of Information NoticeThis manual is written for the use of technically competent operators/service persons. Noliability is accepted by AFL for use or misuse of this manual, the information containedtherein, or the consequences of any actions resulting from the use of the said information,including, but not limited to, descriptive, procedural, typographical, arithmetical, or listingerrors.Furthermore, AFL does not warrant the absolute accuracy of the information containedwithin this manual, or it’s completeness, fitness for purpose, or scope.AFL has a policy of continuous product development and enhancement, and as such,reserves the right to amend, alter, update and generally change the contents, appearance andpertinence of this document without notice.All AFL products carry a twelve month warranty from date of shipment. The warranty isexpressly on a return to base repair or exchange basis and the warranty cover does notextend to on-site repair or complete unit exchange.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-7 of 69Glossary of TermsRepeater orCell Enhancer A Radio Frequency (RF) amplifier which can simultaneouslyamplify and re-broadcast Mobile Station (MS) and BaseTransceiver Station (BTS) signals.Band Selective Repeater A Cell Enhancer designed for operation on a range of channelswithin a specified frequency band.Channel SelectiveRepeater A Cell Enhancer, designed for operation on specified channel(s)within a specified frequency band. Channel frequencies may befactory set, remotely set by computer, or on-site programmable.BTS Base Transceiver StationC/NR Carrier-to-Noise RatioDownlink (D.L.) RF signals transmitted from the BTS and to the MSUplink (U.L.) RF signals transmitted from the MS to the BTSEMC Electromagnetic CompatibilityGND GroundDC Direct CurrentAC Alternating CurrentID Identification NumberOIP3 Output Third Order Intercept Point = RFout +(C/I)/2LED Light Emitting DiodeM.S. Mobile StationN/A Not ApplicableN/C No ConnectionNF Noise FigureRF Radio FrequencyRx ReceiverTx TransmitterS/N Serial Number
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-8 of 69Key to AFL RF Module Drawing Symbols
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-9 of 691. SAFETY CONSIDERATIONS1.1 Earthing of EquipmentCell Enhancers supplied from the mains must be connected to grounded outlets and earthed inconformity with appropriate local, national and international electricity supply and safetyregulations.1.2 Electric Shock HazardElectrical shocks due to faulty mains driven power supplies.Whilst ever potentially present in any electrical equipment, such a condition would beminimised by quality installation practice and thorough testing at:a) Original assembly.b) Commissioning.c) Regular intervals, thereafter.All test equipment to be in good working order prior to its use. High current power suppliescan be dangerous because of the possibility of substantial arcing. Always switch off duringdisconnection and reconnection.1.3 RF Radiation HazardRF radiation, (especially at UHF frequencies) arising from transmitter outputs connected toAFL’s equipment, must be considered a safety hazard.This condition might only occur in the event of cable disconnection, or because a ‘spare’output has been left unterminated. Either of these conditions would impair the system’sefficiency. No investigation should be carried out until all RF power sources have beenremoved. This would always be a wise precaution, despite the severe mismatch between theimpedance of an N type connector at 50, and that of free space at 377, which wouldseverely mitigate against the efficient radiation of RF power. Radio frequency burns couldalso be a hazard, if any RF power carrying components were to be carelessly touched!Antenna positions should be chosen to comply with requirements (both local & statutory)regarding exposure of personnel to RF radiation. When connected to an antenna, the unit iscapable of producing RF field strengths, which may exceed guideline safe values especially ifused with antennas having appreciable gain. In this regard the use of directional antennaswith backscreens and a strict site rule that personnel must remain behind the screen while theRF power is on, is strongly recommended.Where the equipment is used near power lines, or in association with temporary masts nothaving lightning protection, the use of a safety earth connected to the case-earthing bolt isstrongly advised.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-10 of 691.4 Chemical HazardBeryllium Oxide, also known as Beryllium Monoxide, or Thermalox™, is sometimes usedin devices within equipment produced by Aerial Facilities Ltd. Beryllium oxide dust can betoxic if inhaled, leading to chronic respiratory problems. It is harmless if ingested or bycontact.Products that contain beryllium are load terminations (dummy loads) and some poweramplifiers. These products can be identified by a yellow and black “skull and crossbones”danger symbol (shown above). They are marked as hazardous in line with internationalregulations, but pose no threat under normal circumstances. Only if a component containingberyllium oxide has suffered catastrophic failure, or exploded, will there be any danger of theformation of dust. Any dust that has been created will be contained within the equipmentmodule as long as the module remains sealed. For this reason, any module carrying theyellow and black danger sign should not be opened. If the equipment is suspected of failure,or is at the end of its life-cycle, it must be returned to Aerial Facilities Ltd for disposal.To return such equipment, please contact the Quality Department, who will give you aReturned Materials Authorisation (RMA) number. Please quote this number on the packingdocuments, and on all correspondence relating to the shipment.PolyTetraFluoroEthylene, (P.T.F.E.) and P.T.F.E. Composite MaterialsMany modules/components in AFL equipment contain P.T.F.E. as part of the RF insulationbarrier.This material should never be heated to the point where smoke or fumes are evolved. Anyperson feeling drowsy after coming into contact with P.T.F.E. especially dust or fumesshould seek medical attention.1.5 Emergency Contact NumbersThe AFL Quality Department can be contacted on:Telephone +44 (0)1494 777000Fax +44 (0)1494 777002e-mail qa@aerial.co.uk
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-11 of 692. OVERVIEW/SYSTEM DESCRIPTIONThe AFL Channel Selective Cell Enhancer is a 2-way on-band repeater. Various models areavailable to cover frequency bands from 50MHz to 3000MHz. Its main sphere ofapplications is in urban areas where the topology is such that shadows occur in thepropagation pattern (for example within large buildings, conference centres and tunnels,etc.,)The Channel Selective Cell Enhancer is a 4-port device with direct connection to twoantennas, a highly directional Yagi or similar aligned towards the base site (for the ninedownlink channels) and a dedicated uplink antenna for the mobiles. The frequency bandsthat are passed by the Cell Enhancer are set as per the specific customer requirements.AFL manufacture a wide range of Cell Enhancers, configured for each customer's specificrequirements. Two basic physical variants are available, a rack mounted version to fit in astandard 19" rack and an environmentally sealed wall mounted version which requires nofurther enclosure.The rack-mounted version is supplied in this instance in 5 shelf units. Each shelf/tray unitcontaining active modules has a ‘D.C. on’ indicator on the front panel and the PSU (in thedownlink amplifier shelf) also has an ‘A.C. on’ indicator.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-12 of 693. SPECIFICATION3.1 9 Channel Channelised Cell Enhancer 50-025301 Parts ListsAFL Part N.Description Qty.50-025302 VTA-Downlink Duplexer Shelf 150-025303 VTA-Downlink Amplifier Shelf 150-025304 VTA-Downlink Channel Shelf 150-025305 VTA-Uplink Duplexer Shelf 150-025306 VTA-Uplink Amplifier Shelf 13.1.1 VTA-Downlink Duplexer Shelf 50-025302 Parts List02-011204 6P TETRA C/L FILT (NARROW) SMA 202-013401 6P CL FLTR(0.5 min BW)LARGE SMA ASSY 219-001021 4U 19" UNIT 400 DEEP CHASSIS + BKT 119-001024 4U 19" UNIT FRONT PANEL FAB 191-020004 N JACK PANEL UT-141 6
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-13 of 693.1.2 VTA Downlink Amplifier Shelf 50-025303 Parts ListAFL Part N.Description Qty.05-002603 UHF 3dB SPLITTER SMA 210-000701 1/4W0-30dB SWITCHED ATTENUATOR 211-006102 LNA 380-500MHz 1W WITH RELAY 211-007302 LNA. 380-500MHz 20dB (C/W RELAY) GA 111-007402 LNA. 380-500MHz 30dB (C/W RELAY) GA 312-002201 3 STAGE AMPLIFIER ALARM BOARD 212-002220 3 STAGE ALARM PCB COVER 212-004201 PWR AMP.450MHz 20W version CLASS A 213-001702 VOLTAGE REGULATOR Board 12V 250-012820 CCE RACK MOUNTED 8U CHASSIS 150-012822 CCE RACK MOUNTED LID 150-012825 CCE RACK MOUNTED HEATSINK BRACKET 450-027720 RACK MTD CHAN C.E. MODIFIED HEATSIN 280-008902 24V RELAY PCB ASSEMBLY 180-032320 10W PA HEATSINK (NEEDS 17-000526) 180-090822 C/E 8U FRONT PANEL, AFL (RAL7035) 191-030002 N ADAPTOR PANEL FEMALE:FEMALE 891-100003 SMA PLUG ELBOW UT-141 491-130001 SMA ADAPT 'T' ALL FEMALE 3 GHZ 191-520003 POWER SWITCHD/FUSED MAINS INL. 191-600014 'D' 9 WAY SOCKET S/B (NON FILTERED) 291-600015 'D' 9 WAY PLUG S/B (NON FILTERED) 191-700017 ICD 15 WAY 0.1' CONNECTOR 593-540035 1K3 0.25W 1% RES MRS25 M:F 296-300054 24V 17A PSU 400W (XP BCC) 196-500005 DC INPUT FILTERS 196-700002 LED.GREEN 5mm SEALED IP66 196-700005 LED.RED 5mm SEALED IP66 197-400002 HANDLE TYPE H6803 4U.[ALLOY] 2
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-14 of 693.1.3 VTA Downlink Channel Shelf 50-025304 Parts List05-002603 UHF 3dB SPLITTER SMA 205-003302 4 WAY SPLITTER GSM 900MHz 405-003401 4 WAY SPLITTER LOW POWER 417-002101 CHANNEL CONTROL MODULE 317-003022 MODULE PATTERNED LEAVE 817-003023 SUBRACK SIDE PANEL 417-003024 SUBRACK REAR BRACKET 817-003025 BOTTOM MODULE GUIDE 817-003028 MODULE SQUARE LEAVE 817-003029 TOP MODULE GUIDE 817-010601 CHAN MOD 480MHz, 15kHz B/W 997-000002 BLACK MODULE CAGE RUNNER 1697-600001 SUBRACK FRONT HORIZ 497-600002 SUBRACK M2.5 STD TAP 43.1.4 VTA Uplink Duplexer Shelf 50-025305 Parts List02-011204 6P TETRA C/L FILT (NARROW) SMA 202-013401 6P CL FLTR(0.5 min BW)LARGE SMA ASSY 219-001021 4U 19" UNIT 400 DEEP CHASSIS + BKT 119-001024 4U 19" UNIT FRONT PANEL FAB 191-020004 N JACK PANEL UT-141 6
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-15 of 693.1.5 VTA Uplink Amplifier Shelf 50-025306 Parts List02-011204 6P TETRA C/L FILT (NARROW) SMA 102-013401 6P CL FLTR(0.5 min BW)LARGE SMA ASSY 110-000701 1/4W0-30dB SWITCHED ATTENUATOR 211-006102 LNA 380-500MHz 1W WITH RELAY 111-007302 LNA. 380-500MHz 20dB (C/W RELAY) GA 311-007402 LNA. 380-500MHz 30dB (C/W RELAY) GA 312-016301 PA 380-470MHz 20W CLASS A 113-001702 VOLTAGE REGULATOR Board 12V 213-003011 DC/DC CONVERTER 24-12V 8A PCB ASSY 117-001101 CELL ENHANCER AGC DETECTOR/AMP ASS 217-001201 C/E AGC UNIT ATTENUATOR ASSY 250-012820 CCE RACK MOUNTED 8U CHASSIS 150-012822 CCE RACK MOUNTED LID 150-012825 CCE RACK MOUNTED HEATSINK BRACKET 450-027720 RACK MTD CHAN C.E. MODIFIED HEATSIN 280-008902 24V RELAY PCB ASSEMBLY 180-032320 10W PA HEATSINK (NEEDS 17-000526) 180-090822 C/E 8U FRONT PANEL, AFL (RAL7035) 191-030002 N ADAPTOR PANEL FEMALE:FEMALE 491-100003 SMA PLUG ELBOW UT-141 491-130001 SMA ADAPT 'T' ALL FEMALE 3 GHZ 191-520003 POWER SWITCHD/FUSED MAINS INL. 191-600014 'D' 9 WAY SOCKET S/B (NON FILTERED) 291-600015 'D' 9 WAY PLUG S/B (NON FILTERED) 193-540035 1K3 0.25W 1% RES MRS25 M:F 296-300054 24V 17A PSU 400W (XP BCC) 196-500005 DC INPUT FILTERS 196-700002 LED.GREEN 5mm SEALED IP66 196-700005 LED.RED 5mm SEALED IP66 197-400002 HANDLE TYPE H6803 4U.[ALLOY] 2
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-16 of 693.2 Technical SpecificationPARAMETER SPECIFICATIONDownlink Frequency Range: 491.4-492.2MHzSingle Downlink Channel Frequency: 485.5875MHzUplink Frequency Range: 488.4-489.6MHzSingle Uplink Frequency: 485.5875MHz12.5kHz adjacent channel >20dBChannel Bandwidth selectivity:25kHz adjacent channel >80dBNumber of Channels: 9Number of ports: 4RF Connectors: N type, femaleImpedance: 50VSWR: Better than 1.5:1Sensitivity: 0.35 microvolts @ 12dB SINADDownlink Output Power: 40 WattsUplink Output Power: 20WattsUplink TOI: 50dBmDownlink TOI: 50dBmRF level per carrier: >+23dBmPassband ripple: <±1.5dBNoise figure: <6dB (@max gain)Gain: 96dBGain adjustment: 0-30dB (in 2dB steps)In band spurious: Better than –36dBmSpurious up to 3GHz: Better than –90dBcInput AC Supply: 120V ACConsumption: 300 WattsAmplifiersChannel phase unlockAlarms:(Volt-free relay contacts) PSU FailureMTBF: 80,000 Hrs.Housing: 19” Rack mounted
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-17 of 693.3 Mechanical SpecificationPARAMETER SPECIFICATIONHeight: Eurorack Shelves(1U=44.5mm)Width: 19"Case Size:Depth: <500mm(excluding heatsinks, connectors, handles and feet)operational: -10°C to +55°CTemperature Range: storage: -40°C to +70°CWeight: <15kg*Humidity: 5 – 95% non-condensingRF Connectors: N type femaleEnvironmental Protection: IP54Case: AlocromHeatsinks: Matt blackFinish:Handles: AlocromSupply Cable:Unit supplied with suitable supply inputleads with connector and specified lengthof cable (where appropriate)* Note: Individual shelf weights unspecified.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-18 of 694. SYSTEM DRAWINGS4.1 Drg. N. 50-025381, Channelised CE System Diagram11 CHANNEL CHANNELISED CE (CSIC)SYSTEM DIAGRAM50-0253811A1:1MNR 30/07/03dBdBAGC dBdBdBAGC dBBANDPASS FILT ER485.5875MHz02-013401LNA11-007402ATTENUATOR10-000701CHANNEL MO DUL E17-010601 11-007402LNA LNA11-006102485.5875MHz02-013401BANDPASS FIL TER17-0106018 x CHANNEL MODULE491.4-492.2MHz02-011204BANDPASS FILT ERLNA11-007402 10-000701ATTENUATOR05-003401SPLITTER05-002603SPL ITT ER05-003401CO M BINER05-002603CO M BINE R11-007302LNA11-006102LNASPLITTER05-002603 05-002603CO MBINER12-004201PA12-004201PABANDPASS FIL TER491.4-492.2MHz02-011204485.5875MHz02-013401BANDPASS FIL TERAGC DET.17-001101 17-001201AGC ATT.11-006102LNA AT TENUATOR10-000701 11-007302LNA11-007402LNABANDPASS FIL TER02-013401485.5875MHz02-013401BANDPASS FIL TER485.5875MHz11-007402LNABANDPASS FIL TER17-001101AGC DET.BANDPASS FIL TER02-013401488.4-489.6MHz11-00730212-016301PA10-000701ATTENUATOR17-001201AGC ATT.LNA11-007302LNA 488.4-489.6MHzBANDPASS FIL TER02-01340111-007402488.4-489.6MHz02-013401LNA50-02530550-02530650-02530450-02530350-025302DATEDES CRIPTIONNoISSUETHIRD ANGLE PROJECTION1 23 45 6 78 9101112ABCDEFGH1 23 45 6 78 9101112ABCDEFGHPERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITINGRE P ROD UC TI ON OR USE OF THI S DE SIGN BY OTHERS ISTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.UNLESS OTHERWISE STATEDALL DIMENSIONS ARE IN mmDATEDRAWN CHKD APPDTWO DECIMAL PLACES ± 0.1mmNO DECIMAL PLACE ± 1mmONE DECIMAL PLACE ± 0.3mmBY AERIAL FACILITIE S LTD.TOLE RANCE S SCA LECUSTOMER DRAWING NoFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedEnglandTI TLE2APRO DUCTIO N ISSUE MNR30/ 07/ 03FRE QUENCY PROGRAMMING DATAB/W=15kHzFRE QUENCY PROGRAMMING DATAB/W=15kHzFRE QUENCY PROGRAMMING DATAB/W=15kHzFRE QUENCY PROGRAMMING DATAB/W=15kHzFRE QUENCY PROGRAMMING DATAB/W=15kHzFRE QUENCY PROGRAMMING DATAB/W=15kHzFRE QUENCY PROGRAMMING DATAB/W=15kHzFRE QUENCY PROGRAMMING DATAB/W=15kHzFRE QUENCY PROGRAMMING DATAB/W=15kHz485. 58 75M H z491. 63 75M H z491. 83 75M H z492. 03 75M H z491. 61 75M H z492. 17 50M H z491. 66 25M H z492. 01 25M H z491. 41 25M H z0-30dB0-30dB0-30dB0-30dBANTENNADO WNL INKANTENNAUPL INKDO WNL INKLCXUPL INKLCXPB GD
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-19 of 695. SUB-UNIT MODULES5.1 VTA Downlink Duplexer Shelf 60-025302 (4U chassis)5.1.1 Bandpass Filters (02-011204 & 02-013401)5.1.1.1 DescriptionThe bandpass filters are multi-section designs with a bandwidth dependent upon thepassband frequencies, (both tuned to customer requirements). The response shape isbasically Chebyshev with a passband design ripple of 0.1dB. The filters are of comblinedesign, and are carefully aligned during manufacture in order to optimise the insertion loss,VSWR and intermodulation characteristics of the unit. The tuned elements are silver-platedto reduce surface ohmic losses and maintain a good VSWR figure and 50 load at the inputand output ports.Being passive devices, the bandpass filters should have an extremely long operational lifeand require no maintenance. Should a filter be suspect, it is usually most time efficient toreplace the module rather than attempt repair or re-tuning.No adjustments should be attempted without full network sweep analysis facilities tomonitor both insertion loss and VSWR simultaneously.5.1.1.2 Technical Specification (02-011204)PARAMETER SPECIFICATIONPassband 491.4-492.2 MHzInsertion Loss 1.9 dB typical> 485 MHz > 55 dBRejection > 458-459 MHz > 60 dBPower Rating 50 WattImpedance 50 ohmVSWR Better than 1.2:15.1.1.3 Technical Specification (02-013401)Passband 485.5875MHzInsertion Loss 1.9 dB typical> 492 MHz > 60 dBRejection > 488-489 MHz > 55 dBPower Rating 50 WattImpedance 50 ohmVSWR Better than 1.2:1
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-20 of 695.2 VTA Downlink Amplifier Shelf (50-025303, 8U Chassis)5.2.1 UHF 3dB Splitter (05-002603)5.2.1.1 DescriptionThe 3dB Splitter/Combiner used is a device for accurately matching two or more RFsignals to single or multiple ports, whilst maintaining an accurate 50Ω load to allinputs/outputs and ensuring that the VSWR and insertion losses are kept to a minimum.Any unused ports will be terminated with an appropriate 50Ω load.5.2.1.2 Technical SpecificationPARAMETER SPECIFICATIONFrequency Range: 400-500 MHzPower Rating: 5 WattsInsertion Loss: 5.2dB TypicalVSWR: 1.2:1Impedance: 50 OhmsConnectors: SMAWeight: <0.5KgsMechanical: Drawing No. 07-0038905.2.2 ¼Watt 0- -30dB Switched Attenuator (10-000701)5.2.2.1 General ApplicationIn many practical applications for Cell Enhancers etc., the gain in each path is found to beexcessive. Therefore, provision is made within the unit for the setting of attenuation ineach path, to reduce the gain.5.2.2.2 Switched AttenuatorsThe AFL switched attenuators are available in two different types; 0 – 30dB in 2 dB steps(as in this case), or 0 – 15dB in 1 dB steps. The attenuation is simply set using the fourminiature toggle switches on the top of each unit. Each switch is clearly marked with theattenuation it provides, and the total attenuation in line is the sum of the values switchedin. They are designed to maintain an accurate 50 impedance over their operatingfrequency at both input and output.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-21 of 695.2.3 Low Noise Amplifier (11-006102)5.2.3.1 DescriptionThe 15dB gain low noise amplifier used in the unit is a double stage solid-state low noiseamplifier. Class A circuitry is used throughout the units to ensure excellent linearity overa very wide dynamic range. The active devices are very moderately rated to provide along trouble-free working life. There are no adjustments on these amplifiers, and in theunlikely event of a failure, then the complete amplifier should be replaced.5.2.3.2 Technical SpecificationPARAMETER SPECIFICATIONFrequency range: 380-500MHzBandwidth: <150MHzGain: 15.5dB ±0.5dB1dB compression point: 31dBmIP3: 46dBmI/O return loss: >18dBNoise figure: <1.3dBSupply requirement: 10 – 24V, DCConsumption: 510-540mA @ (10 – 24V)storage: -20°C to +55°CTemperaturerange operation: -40°C to +70°
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-22 of 695.2.3.3 Drg. N. 11-006170, LNA Circuit Diagram (RF)C1C2C3C7R6C8R1 1 R1 2R5C5C6R7 R8R1R2R3R4C4R1 3 R1 4R9 R1 0C1 0C1 4C1 3R1 5C1 6C1 7380-500MHz 1W AMPLIFIER(RF) CIRCUIT DIAGRAM11-0061701AN.T.SMNR 23/01/02C9C1 1 C1 2R1 6R1 7C1 5DATEDESCRIPTIONNoISSUETHIRD ANGL E PRO JECTION123456789101112ABCDEFGH123456789101112ABCDEFGHPERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITINGRE PRODUCTI ON OR US E OF TH IS DES IGN BY OTHE RS I STHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.UNLESS OTHERWISE STATEDALL DIMENSIONS ARE IN mmDATEDRAWN CHKD APPDTWO DECIMAL PLACES ± 0.1mmNO DECIMAL PLACE ± 1mmONE DECIMAL PLACE ± 0.3mmBY AERIAL FACILITIES LTD.TOLERANCES SCALECUSTOME R DRAWING NoFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedEnglandTI TLE2A910R5R6910R8.2pFL1L23.3pF 100R18nHL318nH18nH18nHL46.8pF220pF1nF56R56R1nF220pF220pF220pF220pF220pF10K 0R010K 0R06.8nHL56.8nHL6T1CYL 5GDSGDSCYL 5T2L7180nH180nHL97.5nHL87.5nHL1018nHL11L1218nH18nHL1318nHL146.8pF6.8pF100R 3.3pF8.2pFRF O UTRF INANY CO MPO NENTS IN ARE NO T USED IN THIS BUIL DPRODUCTION ISSUE23/ 01/ 02MNR0R0RF O UT(OPTIONAL)6.8pFCB IB
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-23 of 695.2.3.4 Drg. N. 11-006171, LNA Schematic Diagram (DC)BYDAT EDES CRIP TIO NNoISSUE123456789ABCDEF1 23456789ABCDEFFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACIL ITIES L TD.REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS ISPERMISSIBLE O NL Y IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACIL ITIES L TD.NO DECIM AL PL ACE ± 1 mmONE DECIMAL PL ACE ± 0.3mmTWO DECIMAL PL ACES ± 0.1mmAL L DIMENSIO NS ARE IN m mUNL ESS OTHERWISE STATEDCHKDDRAWN APPDDATET O L ERANCES SCALEEnglandCUST O MER DRAWING .NoTITLE3A380-500MHz 1W AMPLIFIERSCHEMATIC DIAGRAM11-0061711AMNR 23/01/02LM7808CTREG 3GIO+6V 220mA-ve+6V 220mA-veJ4 1CO N2 - J5CO N2 - J4J4 2J5 1J5 2DC INPUT DC O UT PUTRF PCBFOR CIRCUIT DIAGRAMSEE 11-006170SEE 11-003971FOR CIRCUIT DIAGRAMDC PCB+8V CBARFINPRODUCTION ISSUE23/01/02MNROUTRFOC GOOD/0v BAD9 CON19REL AY CO NTACT G O O DREL AY COM MO NRELAY CONTACT BADPIN OUTS9 WAY 'D'TTL VO LTAG E SETTTL AL ARM/0v GOODGROUND+12V DC I/P7 CON18 CON15 CON14 CON168754A3 CON12 CON132CO N11***= ONLY APPLIES TO 11-006802*CB IB
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-24 of 695.2.4 Low Noise Amplifiers (11-007302 & 11-007402)5.2.4.1 DescriptionThe low noise amplifiers used are double stage solid-state low-noise amplifiers. Class Acircuitry is used in the units to ensure excellent linearity over a very wide dynamic range.The active devices are very moderately rated to provide a long trouble-free working life.There are no adjustments on these amplifiers, and in the unlikely event of failure then theentire amplifier should be replaced. The two amplifiers are very similar in construction,the only difference is the biasing, which changes the gain figure, see tables below.5.2.4.2 Technical Specification, (11-007302)PARAMETER SPECIFICATIONFrequency range: 380-500MHzBandwidth: <140MHzGain: 20-22dB1dB Compression Point: +23.5dB (typical)3rd order intercept: +36dB (typical)Input/Output return loss: >20dBNoise figure: <1.3dBConnectors: SMA femaleSupply: 200-230mA @ 24V DCoperational: -10°C to +55°CTemperature range: storage: -30°C to +70°CWeight: <300gmsSize: 90 x 55 x 30.2 (case only)5.2.4.3 Technical Specification (11-007402)PARAMETER SPECIFICATIONFrequency range: 380-500MHzBandwidth: <140MHzGain: 30-32dB1dB Compression Point: +22dBm (typical)3rd order intercept: +34-35dBm (typical)Input/Output return loss: >20dBNoise figure: <1.3dBConnectors: SMA femaleSupply: 300-330mA @ 24V DCoperational: -10°C to +55°CTemperature range: storage: -30°C to +70°CWeight: <300gmsSize: 90 x 55 x 30.2 (case only)
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-25 of 695.2.4.4 Drg. N. 11-007302, LNA Assembly With Alarm RelayBYDAT EDES CRIPTIO NNoISSUE1 23 456 78 9ABCDEF123456789FEDABCFax : 01494 777002Tel : 01494 777000Aerial Facilities LtdTWO DECIMAL PLACES ± 0.1mmONE DECIMAL PL ACE ± 0.3mmNO DECIMAL PL ACE ± 1 mmBY AERIAL F ACIL IT IES L TD.PERMISSIBLE ONLY IF EXPRESSL Y AUTHORISED IN WRITINGREPRO DUCTION OR USE OF THIS DESIG N BY O THERS ISTHIS IS A PRO PRIETARY DESIG N OF AERIAL FACILITIES LTD.DRAWN CHKDAL L DIM ENSIO NS ARE IN mmUNL ESS O THERWISE STAT EDAPPDDAT ET O L ERANCES SCALEEnglandCUSTO MER DRG.NoTITLEA3LOW NOISE AMPLIFIER 380-500MHz(20dB) ASSEMBLY DRAWING (WITH RELAY)11-0073021A1.5:1DBS 9/7/02PRODUCTION ISSUE9/7/02DBSCOMPONENTS TO BE ADDED TO 11-003912,ITEM 15,DC PCB SUB-ASSEMBLYAFLSENSITIV EDEVICESE LE C TR O S TA TI COBSERVE PRECAUTIONSATTENTIONFOR HAND LINGAFLAFL********11-007302380-500MHz20dB 10-24V DC**/**/20**REF .FREQ.GAINS/NDAT E0086IN34see note 2LABEL DETAILS - SCALE 1:135see note 2see note 231IN 4 PLACES2. LIDS,ITEMS 2 & 3 AND LABELS,ITEMS 31,34 & 35,TO BE FITTED ON TEST1. SOLDER JOINTS TO BE MADE USING OR2819OUT6IN 3 PLACES3DC PCB254732RF PCB15W6212 C21222CPL 1 R1C1RF O UTR1 9W7C2 15 C9R2R1 6 C5L1L3C4 C8+R4TR1L5 C1 2J31 J32W5W2 W12251017 24233227527220216 235242IN 2 PLACES426830R3 9REG 3J3 J1J2R5 0 R4 9R4 4R4 3RL 1CO N1CB IB
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-26 of 695.2.4.5 Drg. N. 11-007370, LNA RF Circuit DiagramBYDAT EDES CRIP TIO NNoISSUE123456789ABCDE1 23456789ABCDEFFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACIL ITIES L TD.REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS ISPERMISSIBLE O NL Y IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACIL ITIES L TD.NO DECIM AL PL ACE ± 1 mmONE DECIMAL PL ACE ± 0.3mmTWO DECIMAL PL ACES ± 0.1mmAL L DIMENSIO NS ARE IN m mUNL ESS OTHERWISE STATEDCHKDDRAWN FAPPDDAT ET O L ERANCES SCALEEnglandCUST O MER DRAWING .NoTITLE3ALOW NOISE AMPLIFIER 380-500MHz(20dB) RF PCB CIRCUIT DIAGRAM11-0073701A-DBS 5/7/02CLY2TR 2RF INPUTR151R11303- 3CPL11nFC3Ø1.6x6 turnsL23. 3pFC7L4330nHR3100R 10KR61nFC61nFC1C43. 3pFØ1.6x6 turnsL1330nHL3100RR2 R510KJ31C51nFTR 1CLY2560RR7100nHL6C101nFC91nFR4560R100nHL51nFC131nFC1251RR811303- 3CPL2R9R110R 0R100R 0W1W50R 0RF OUTPUT0R 0W60R 0R19HEADER PINHEADER PINJ32HEADER PINJ12HEADER PINJ11PRODUCTION ISSUE5/7/02DBS0R 0W20R 0W7ATTENUATOR GROUP(Select values on Test)DG SDGSECN2718 DBS19/9/022ACB IB
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-27 of 695.2.4.6 Drg. N. 11-007371, LNA DC Wiring DiagramBYDA T EDES CRIP TIO NNoISSUE123456789ABCDEF1 23456789ABCDEFFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS ISPERMISSIBLE O NL Y IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACIL ITIES LTD.NO DECIM AL PL ACE ± 1 mmONE DECIMAL PL ACE ± 0.3mmTWO DECIMAL PL ACES ± 0.1mmAL L DIMENSIO NS ARE IN m mUNL ESS OTHERWISE STATEDCHKDDRAWN APPDDATET O L ERANCES SCALEEnglandCUST O MER DRAWING .NoTITLE3ALOW NOISE AMPLIFIER. 380-500MHz(20dB) RF SCHEMATIC DIAGRAM11-0073711A-DBS 8/7/02LM7808CTREG 3GIO-veJ11 - J12DC INPUT DC O UT PUTRF PCBFOR CIRCUIT DIAGRAMSEE 11-007370SEE 11-003971FOR CIRCUIT DIAGRAMDC PCB+8V CBARFINPRODUCTION ISSUE8/7/02DBSOUTRFOC GOOD/0v BAD9 CON19REL AY CO NTACT G O O DREL AY COM MO NRELAY CONTACT BADPIN OUTS9 WAY 'D'TTL VO LTAG E SETTTL AL ARM/0v GOODGROUND10-24V DC I/P7 CON18 CON15 CON14 CON168754A3 CON12 CON132CO N115V 75mA-veJ31 - J32J31 1J32 2J12 2J11 15V 75mACB IB
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-28 of 695.2.5.7 Drg. N. 11-003971, LNA DC Circuit DiagramBYDA T EDES CRIP TIO NNoISSUE123456789ABCDEF1 23456789ABCDEFChesham(01494)778301Fax (01494)778910Aerial Facilities LimitedTWO DECIMAL PL ACES ± 0.1mmONE DECIMAL PL ACE ± 0.3mmNO DECIM AL PL ACE ± 1 mmBY AERIAL FACIL ITIES LTD.PERMISSIBLE O NL Y IF EXPRESSLY AUTHORISED IN WRITINGREP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS ISTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.DRAWN CHKDUNL ESS OTHERWISE STATEDAL L DIMENSIO NS ARE IN m mAPPDDATET O L ERANCES SCALEEnglandCUST O MER DRAWING .NoTITLEA3DC PCB FOR LNA's AND LPA's,CIRCUIT DIAGRAM11-003971DJL 24/09/01PROTOTYPE ISSUEAA2 4 /9 /0 1DJLTHIRD ANGL E PROJECTIONR334K 7TR 7BCW71R3210KBCW71R314K 7TR 8R3410KR214K 7R2010KTR 1R24BCW71TR 2R234K 7R2210KTR 3R254K 710KBCW71R11120RR123K 6270KR10R91KC2100nR6100KR4100KR8270K1KR72+C8REG1IOA1KR47+C4 +C5R43 R44 R45+C10100nC11IC28534C1510uC17 +C16100nR52+C1434IC3285R491K REG2IOAR51 R50+C13R461KR481KR39 R40R38100RR42VR1R41+-123-+567-2+31R53R54R55RL11R351KTR 4TR 6R161KR172K 222KR18R19560RR152K 4+C3R143KR3100KR2120R100KR5R290R1K 8R14K 7R3656RR27R134K 7TR 5FZT751BCW711UBCW713V 3D39-+10812+-13146-+57IC1:CIC1:BIC1:D114LM 324MLM 324MLM 324MIC1:ALM324MZD 11. 23VLL4148D2 LE D 1IC4:BIC4:A+C121u10u+C910u1u 1u>12V DC I/P10uZD 35. 1V 10u470RR56R57D1LL4148CON 1 1J2 29CON 1CON 184CON 15CON 1CON 13RL1/1ZD 2C19100n48LM 337LM10u10uLL41481. * IF APPLICABLE, VALUES WILL BE DETERMINED AT A HIGHER LEVEL BOMI C L7660CI C L7660CLM 337LM2J2 11J12J52J11J51J32J42J31J4CON 1+C11uC7470p+C610u+C181u2. CONNECTORS J1-5 TO BE FITTED AS NECESSARYPRODUCTION ISSUE(ECN2359)26/11/01TAS1AV_OUTV_INBCA**********P3*R587CON 1R591KCB IB2A ECN25181 7 /4 /0 2DJLP5P4RL1/2 P8P6P7P1P2R280R********3A ECN26862 5 /7 /0 2DJL
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-29 of 695.2.6 3 Stage Amplifier Alarm Boards (12-002201)5.2.6.1 DescriptionAmplifier Alarm Boards are fitted to monitor the bias conditions of AFL Class Aamplifiers which remain constant in normal operation. Any departure from normal biasconditions is a result of device failure, excess temperature, over-driving or oscillation(excessive power).In normal operation, the Class A bias circuit of the amplifier develops a constant voltageof 1.20V across the collector current setting resistor. The Amplifier Alarm Board is awindow comparator device, which is adjusted to sense a departure from this condition.Several different alarm outputs are provided to simplify interfacing, (Relay Contact, OpenCollector, and TTL Logic Levels)The basic version of the Alarm Board (12-002801) monitors a single amplifier stage. Athree-stage version (12-002201) is used on complex amplifiers where three separatecomparators have their outputs logically combined to a common output stage. Failure ofany one stage will activate the alarms.Note that the alarm board has a green Light Emitting Diode located near to the centre ofthe printed circuit board, which is illuminated on ‘Good’, and extinguished on ‘Alarm’. Itis therefore a simple matter to identify an active module failure, by searching for anAlarm Board which has its green LED extinguished. A simple test of the alarm board ispossible by shorting across the monitor inputs, pins 1 and 2, 3 and 4 or across pins 5 and6. This last monitor input is inactive if the board has been converted to a two way alarmboard. (Refer to relevant amplifier alarm wiring diagram.)1) Volt-free change over relay contacts.2) Open collector NPN transistor pulls low on alarm.3) TTL driver.The use of precision voltage sources and resistors has eliminated the need for initialadjustment or calibration, and the board will function correctly with a wide variation inpower supply voltage (8 to 30 volts, nominal supply is 12 or 24Volts).There are two selectable link options on the three-way board:LINK1 - Removed to convert to two-way alarm board.LINK2 - Removed to isolate 0V from chassis earth.The one way alarm board only has the 0V isolation link (LINK2) fitted.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-30 of 695.2.6.2 Technical SpecificationPARAMETER SPECIFICATIONOperating voltage: 8 to 30V (floating earth)Alarm Threshold: Vcc - 1.20 volt +15%Alarm output relay contacts:Max. switch current: 1.0AmpMax. switch volts: 120Vdc/60VAMax. switch power: 24W/60VAMin. switch load: 10.0µA/10.0mVRelay isolation: 1.5kVMechanical life: >2x107 operationsRelay approval: BT type 56Connector details: 15-way 0.1" pitchoperational: -10°C to +55°CTemperature range: storage: -40°C to +70°C74 x 56mm (3 stage)PCB Size: 54 x 56mm (1 stage)
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-31 of 695.2.6.3 Drg. N. 12-002201, 3 Stage Alarm Board Assembly Drawing & PartsList
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-32 of 695.2.6.4 Drg. N. 12-002270, 3 Stage Alarm Board Circuit Diagram
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-33 of 693 STAGE AMPLIFIER ALARM BO ARDCIRCUIT DIAG RAM12-0022701N.T .SM R B 11/ 8/ 93BYDATEDESCRIP TIONNoISSUE1234 5 678 910 11 12 13 14 15 16 17 18ABCDEFGHIJKLMABCDEFGHIJKL1 2 3 4 5 6 7 8 9 101112 13 1415 1617 18MUNLESS OTHERWISE STATEDALL DIMENSIONS A RE IN mmDRAWN CHKDCUSTOMER DRAWING NoPERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITINGTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.NO DECIMAL P LA CE ± 1mmTWO DECIMAL PLACES ± 0.1mmONE DECIMAL P LACE ± 0.3mmBY AERIAL FACILITIES LTD.REPRODUCTI ON OR USE OF THIS DESIGN BY OTHERS ISAPPDDATETOLERANCES SCA LETel : 01494 777000Fax : 01494 777002Ae ria l Fa cilitie s Lim ite dEng landTI TLE1A+-IC1+-IC1+-IC1+-IC1CONN11TTL ALARMCONN+5v TTL I N12CONN0V15CONNALARM 0v14CONNO/C ALARM137+8v TO +30vCONN1CONNCONN2CONN3CONN4CONN5CONN6MONITOR 1INPUTHI LOW HIMONITOR 2INPUTLO W HIMON I TO R 3INPUTLO W9CONNCONN10CONN8CONTACTSALARMR11K 8+-IC3567R2120RR3120RR43K 6R6100KR5100KR7100KR91K231+-IC3411R111K100KR151KR17100KR23100KR221KR19100KR14100KR13100KR21R251KR271KR372K 4R39560RR26270K270KR18R24100KR28270KR20270KR16100KR10270KR8100KR12270KR424K 7R294K 7R351KR402K 2R4122KR381KR363K2K 2R304K 7R324K 7R3410KR3310KR31TR 3BCW71BCW71TR 2BCW71TR 1657+-IC21098+-IC3324111121314+-IC3+-IC21213141098324111+-IC2+-IC25671098121314D11. 23vSR12D+C11uFC2100n1uC7100nC3100nC41. 0C83v3D9TR 6FZT7 51TR 4BCW71 BCW71TR 4100nC6LK 2D7D6LK 1D4D5D2D3D8LE D 1REL-RL1+OP AMP67RL1/28+7. 5v+7. 5v2+7. 5v +7. 5 vVCC VCC0v 0vCR0508 14/1/94 MRBIC1 , IC2 & IC3 = LM324A MALL DIODES = LL4148 UNLESS MARKED OTHERWISE4RL2/2 32NOT USE DVCCPRODUCTION ISSUE 11/9/93 MRBPRODUCTION ISSUE 29/8/00 MNR22A0vRB RB5.2.6.5 Generic Rack Shelf Enclosure Alarm Wiring Sketch
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-34 of 69
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-35 of 695.2.7 450MHz 20W Power Amplifier (12-004201)5.2.7.1 DescriptionThe power amplifiers fitted to this unit are multi-stage, solid state power amplifiers. ClassA circuitry is employed throughout the units to ensure excellent linearity over a widedynamic frequency range. All the semi-conductor devices are very conservatively rated toensure low device junction temperatures and a long, trouble free working lifetime.The power amplifiers should require no maintenance over their operating lives. Under nocircumstances should the cover be removed or the side adjustments disturbed unless it iscertain that an amplifier has failed; since they are critically aligned during manufactureand any re-alignment will require extensive test equipment.5.2.7.2 Technical SpecificationPARAMETER SPECIFICATIONFrequency Range: 350 – 550MHz (tuned to spec.)Bandwidth: 20MHz (tuned to spec.)Maximum Output Power: >20W (each)Gain: 30dB1dB Compression Point: <+43dBm3rd Order Intercept Point: <+54dBmVSWR: better than 1.45:1Connectors: SMA femaleSupply: 3.50A @ 24V DCSize: 276 x 78 x 40mm (ex. Cons. & h’sink)Weight: 1.5 kg (approx., excl. h’sink)operational: -10°C to +55°CTemperaturerange: storage: -40°C to +70°C
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-36 of 695.2.7.3 Drg. N. 12-004201, PA General Assembly
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-37 of 695.2.7.4 Drg. N. 12-004270, PA Circuit Diagram1A12-004270POWER AMPLIFIER 450MHz 10/20W CLASS ACIRCUIT DIAGRAM-3/8/98DBSBYDATEDE SCRIP T IO NNoISSUE123456789ABCDEF123456789ABCDEFPRODUCTION ISSUE PDC3/8/98+RF INPUT++++RF OUTPUT+24vALARM REFALARMDET.1ALARMDET.2R11R21KRR2R3470RREG .1ADJOUTINADJREG .2OUTINC31uF1nFC71uFC9220pFC8L1 L3 L4 L5FB4FB3FB2FB1L247pFC547pFC61-14pFC41-14pFC2C1 01-14pFC1 11-14pFTR1TP5012PT B2 00 3 1TR2C1 31-14pFC1 51-14pF 1-14pFC2 5 C2 61-14pFC2 21-14pF18pFC2 827pFC1 6C1 727pFC2 918pF56pFC1 24.7uFC1 4R5R4 7C1 956pF 1uFC1 8C2 01uF 56pFC2 11000pFC3 01KRR41uHD12OCTQ45C2 415pFC2 315pF56pFC2 7C156pFLM337T LM337TCONDUCTORS SHOWN THUS: ARE 50 ohm STRIPLINESREFER TO 12-004211 FOR COMPONENT POSITIONS EXCEPT FOR THOSE MARKED (THEY ARE SPECIFIED ON 12-004201)********CR167916/5/00DBS1BFax (01494)777002Tel: (01494) 777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN O F AERIAL FACILITIES LTD.REPRODUCTION OR USE OF THIS DESIGN BY OTHERS ISPERMISSIBLE O NLY IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACILITIES LTD.NO DECIMAL P L ACE ± 1 mmONE DECIMAL PL ACE ± 0.3mmTWO DECIMAL PLACES ± 0.1mmAL L DIMENSIO NS ARE IN mmUNLESS OTHERWISE STATEDCHKDDRAWN APPDDATET O L ERANCES SCALEEnglandCUSTOMER DRAWING.NoTITLE3AC3 11nF*GB BB
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-38 of 695.2.7.5 Drg. N. 12-004270C1, PA Parts List(1)CIRC. DESCRIPT IONAFL STOCK REF.REF.CHANGE NoCHANGE NoCHANGE NoCHANGE No DATEDATEDAT EDAT E ISSUEISSUEISSUEISSUE1234554321ABCDEFGABCDEFGAerial Facilities LimitedDRAWN DAT E APPDCHKD CUST OM ERTITLECOMPONENT LIST FORPOWER AMPLIFIER,450MHz,10/20WCIRCUIT COMPONENT LIST12-004270C1 1APDC5/8/985/8/98PROD. ISS.C1C2C3C4C5C6C7C8C9C10C11C12C13C14C15C16C17C18C19C20C21C22C23C24C25C26C27C28C29C3093-200006 56pF CHIP CAP 10% TOL.(MIN)56pF CHIP CAP 10% TOL.(MIN)93-20000693-200006 56pF CHIP CAP 10% TOL.(MIN)93-200006 56pF CHIP CAP 10% TOL.(MIN)93-200006 56pF CHIP CAP 10% TOL.(MIN)93-130023 PCB MOUNT AIR TRIMMER 1-14pF93-130023 PCB MOUNT AIR TRIMMER 1-14pF93-130023 PCB MOUNT AIR TRIMMER 1-14pF93-130023 PCB MOUNT AIR TRIMMER 1-14pF93-130023 PCB MOUNT AIR TRIMMER 1-14pF93-130023 PCB MOUNT AIR TRIMMER 1-14pF93-130023 PCB MOUNT AIR TRIMMER 1-14pF93-240003 1uF TANTALUM CHIP CAP 35V93-240004 1uF TANTALUM CHIP CAP 35V93-240003 1uF TANTALUM CHIP CAP 35V93-240004 1uF TANTALUM CHIP CAP 35VREFER TO GA 12-004201 FOR DETAILS93-200020 1nF CHIP CAP 63V 10%93-200014 220pF CHIP CAP 10% TOL (MIN)NOT FITTEDNOT FITTED4.7uF TANTALUM CHIP CAP 35V93-240006REFER TO GA 12-004201 FOR DETAILS15pF CHIP CAP 10% TOL.(MIN)93-20000593-200005 15pF CHIP CAP 10% TOL.(MIN)93-200004 18pF CHIP CAP 10% TOL.(MIN)18pF CHIP CAP 10% TOL.(MIN)93-20000493-200016 1000pF (1nF) CHIP CAP 10% TOL.(MIN)REFER TO GA 12-004201 FOR DETAILS93-1300235/5/00CR16792APCB MOUNT AIR TRIMMER 1-14pFREFER TO GA 12-004201 FOR DETAILSC31 REFER TO GA 12-004201 FOR DETAILSGB BB
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-39 of 695.2.7.6 Drg. N. 12-004270C2, PA Parts List(2)CIRC. DESCRIPT IONAFL STOCK REF.REF.CHANGE NoCHANGE NoCHANGE NoCHANGE No DATEDATEDAT EDAT E ISSUEISSUEISSUEISSUE1234554321ABCDEFGABCDEFGAerial Facilities LimitedDRAWN DAT E APPDCHKD CUST OM ERTITLECOMPONENT LIST FORPOWER AMPLIFIER,450MHz,10\20WCIRCUIT COMPONENT LIST12-004270C2 PDC5/8/985/8/98PROD. ISS.REG1REG294-300002 LM337T, VOLTAGE REGULATORLM337T, VOLTAGE REGULATOR94-300002D1 94-120006 2OTQ45 45V DUAL SCHOTTKY DIODER1R2R4R3R593-540075 1R2 2.5W RESISTOR1KR CHIP RESISTOR93-63003747R 6W RESISTOR93-5400831KR CHIP RESISTOR93-630037470R CHIP RESISTOR93-630032L2 93-400004 1.0uH CHOKE SIGMA SC10 SERIES93-910001 FERRITE BEADFERRITE BEAD93-910001FERRITE BEAD93-910001FERRITE BEAD93-910001L1L4L590-500012 1.25 ENAMELLED COPPER WIRE1.25 ENAMELLED COPPER WIRE90-5000121.25 ENAMELLED COPPER WIRE90-5000121.25 ENAMELLED COPPER WIRE90-5000125/5/002A CR16791AL3TR1TR2REFER TO GA 12-004201 FOR DETAILSREFER TO GA 12-004201 FOR DETAILSGB BB
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-40 of 695.2.7.7 Drg. N. 12-003670, PA to Alarm Wiring Details
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-41 of 695.2.8 Single DC/DC Converter (13-001702)5.2.8.1 DescriptionThis unit it is used to derive a fixed voltage power supply rail from some higher voltage.Typically, it is used to derive 5V, 8V, 12V or 15V from a 24V input. This particularregulator is dedicated to supply 12.8V DC.The circuit is based upon an LM317 variable voltage regulator, which is capable ofsupplying a maximum of 1.5A output current. Note that at full output current thedissipation of the device must remain in limits, bearing in mind the voltage which isbeing dropped across it. The maximum allowable dissipation will also depend on theefficiency of the heatsink on which the device is mounted.The output voltage of the unit is programmed by the resistive divider which is fittedbetween the output terminal, the reference terminal and ground. R1 is the referenceprogramming resistor and is fixed in all versions. R2 is fitted on 12V versions while R3,(which is in parallel with R2) is fitted on 8V and 5V versions.5.2.8.2 Technical SpecificationPARAMETER SPECIFICATIONOperating Voltage: 21 – 27V DCOutput Voltages: 12.4V (typical)Output Current: 1.0A (maximum per o/p)Connections: Screw Terminal Blockoperational: -10ΒC to +55ΒCTemperaturerange: storage: -40ΒC to +70ΒCPCB Size: 47 x 30mm
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-42 of 695.2.8.3 Drg. N. 13-001702, 12.8V Regulator Assembly Drawing & Parts List12 323251IN 2 PLACES261262412.8v REGULATOR,ASSEMBLY13-001702 1A2:1MNR 12/7/00BYDATEDESCRIPTIONNoISSUETHIRD ANG LE PROJECTIONUSED O N+++TB1D1C1C3 C2 R3 R2 R1C4REG113-001725AFL LtdCO MP.REF . AFL STO CK REF. DESCRIPTION1A PRODUCTION ISSUE1 2 /7 /0 0MNR1: ALL SOLDERED CONNECTIONS TO BE MADE USING ITEMREG 113- 001725TB1D1C4+C1C2C3 R3 R2A FL Lt d++R1ACTUAL SIZE123 456PART SECTION SHOWINGFax : (01494)777002Tel : (01494)777000Aerial Facilities LtdTHIS IS A PRO PRIETARY DESIGN OF AERIAL FACIL ITIES L TD.REPRODUCTIO N O R USE OF THIS DESIG N BY O THERS ISPERMISSIBLE O NLY IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL F ACIL ITIES L TD.NO DECIMAL PL ACE ± 1 mmONE DECIMAL PLACE ± 0.3mmTWO DECIMAL PLACES ± 0 .1 mmAL L DIM ENSIO NS ARE IN mmUNL ESS OTHERWISE STAT EDCHKDDRAWN APPDDAT ET OL ERANCES SCAL EEnglandCUSTO MER DRG.NoTITLEA3ISSTB1 9 1- 7 00 0 0 3 3 WAY PRINTED CIRCUIT CO NC1 93-140002 2.2uF 35V TANTALUM CAPC2 9 3- 1 40 0 0 4 1 0 u F 3 5V T ANT AL UM CAPC3 9 3- 1 4 0 0 0 2 2 .2 u F 3 5 V TANT AL UM CAPC4 93-120003 1 00n F 6 3V POL YESTER CAP FIL MD1 94-100006 DIODE 1N4003 [1N4000R1 93-540024 240R 0.25W 1% RES MRS25 M:FR2 93-540039 2K2 0.25W 1% RES MRS25 M:F94-300001REG1 L M3 1 7 T N.S.C/MO T VO L TAG E REGPOSITION OF C/BORE2: WHERE INDIVIDUAL ITEMS ARE NOT BALLOONED THE COMPONENT IS IDENTIFIED ON BOTH THE COMPONENT LIST AND THE DRAWING BY ITS COMPONENT REF.(SEE B.o.M FOR BALLOON IDENTS)NOTEGB BB
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-43 of 695.2.8.4 Drg. N. 13-001771, 12.8V Single Regulator Circuit DiagramBYDATEDESCRIPTIONNoISSUE1 234 5678 9ABCDEABCDE18-30V INPUTTB1 1TB1 21N4003D1VIN REG1LM317TVOUTADJ R1240RC1 C2 R22K2 C3C45 TB16 TB13 TB14 TB112.8v OUTPUT+++2u2 10u 2u2100nFax : (01494)777002Tel : (01494)777000Aerial Facilities LimitedTHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.REPRODUCTIO N O R USE O F THIS DESIGN BY O THERS ISPERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITINGBY AERIAL FACIL IT IES L TD.NO DECIMAL PL ACE ± 1 m mONE DECIMAL PLACE ± 0.3mmTWO DECIMAL PL ACES ± 0 .1 m mAL L DIMENSIO NS ARE IN mmUNL ESS O THERWISE STATEDCHKDDRAWN F12APPDDAT ET O L ERANCES3SCALE45EnglandCUSTO MER DRAWING.No67TITLE8 93AF12.8v REGULATOR, CIRCUIT DIAGRAM13-0017711AMNR 13/7/00CR167913/7/00MNRGB BB
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-44 of 695.2.9 24V Single Relay Board (80-008902)5.2.9.1 DescriptionThe General Purpose Relay Board allows the inversion of signals and the isolation ofcircuits. It is equipped with a single dual pole change-over relay RL1, with completelyisolated wiring, accessed via a 15 way in-line connector.The relay is provided with polarity protection diodes and diodes for suppressing thetransients caused by "flywheel effect" which can destroy switching transistors or inducespikes on neighbouring circuits. It’s common use is to amalgamate all the alarm signalsinto one, volts-free relay contact pair for the main alarm system.Note that the board is available for different voltages (12 or 24V) depending on the typeof relay fitted at RL1.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-45 of 695.2.9.2 Drg. N. 80-008970, Single Relay Board Circuit Diagram
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-46 of 695.2.10 24V 410W Power Supply (96-300054)5.2.10.1 DescriptionThe power supply unit is a switched-mode type capable of supplying 24V DC at 17.0Ampscontinuously. Equipment of this type typically requires approximately 8.0 Amps at 24V DC,so the PSU will be used conservatively ensuring a long operational lifetime.No routine maintenance of the PSU is required. If a fault is suspected, then the outputvoltage from the power supply may be measured on its output terminals. This is typically setto 24.5V.All the PSU’s used in AFL Cell Enhancers are capable of operation from either 110 or 220Vnominal AC supplies. The line voltage is sensed automatically, so no adjustment or linksetting is needed by the operator. No drawings of the PSU are available.5.2.10.2 Technical SpecificationAC Input Supply:Voltage: 110 or 220V nominal - 90 to 132 or 180 to264V (single phase, absolute limits)Frequency: 47 to 63HzDC Output Supply:Voltage: 24V DC (nominal), 22 to 26V(absolute limits)Current: 17.0Aoperational: -10ΒC to +55ΒCTemperaturerange: storage: -40ΒC to +70ΒC
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-47 of 695.3 VTA Downlink Channel Shelf (50-025304)5.3.1 UHF 3dB Splitter (05-002603) See section 5.2.15.3.2 4-Way Splitter (05-003401)5.3.2.1 DescriptionThe Splitter/Combiners used are devices for accurately matching two or more RF signalsto single or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputsand ensuring that the VSWR and insertion losses are kept to a minimum. Any unusedports will be terminated with an appropriate 50Ω load.5.3.2.2 Technical SpecificationPARAMETER SPECIFICATIONFrequency range: 170 – 550MHzBandwidth: 280MHzRejection: >14dBInsertion loss: 6.5dB (in band, typical)Connectors: SMAWeight: <1.5Kgmoperational:-10ΒC to +55ΒCTemperaturerange: storage -40ΒC to +70ΒC
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-48 of 695.3.3 Channel Control Module (17-002101)5.3.3.1 DescriptionThe purpose of the channel control modules is to change the channel selective modulefrequencies by means of a series of D.I.P switch banks, each switch corresponding to adifferent ‘frequency bit’.5.3.3.2 Technical SpecificationBelow shows the pin assignments for each switch on a channel control module.IDC PIN 25-way Connector Function1 13 Freq. bit 1 (12.5kHz)2 25 Freq. bit 2 (25kHz)3 12 Freq. bit 3 (50kHz)4 24 Freq. bit 4 (100kHz)5 11 Freq. bit 5 (200kHz)6 23 Freq. bit 6 (400kHz)7 10 Freq. bit 7 (800kHz)8 22 Freq. bit 8 (1.6MHz)9 9 Freq. bit 9 (3.2MHz)10 21 Freq. bit 10 (6.4MHz)11 8 Freq. bit 11 (12.8MHz)12 20 Freq. bit 12 (25.6MHz)13 7 Freq. bit 13 (51.2MHz)14 19 Freq. bit 14 (102.4MHz)15 6 Freq. bit 15 (204.8MHz)16 18 Freq. bit 16 (409.6MHz)17 5 Module alarm18 1719 420 1621 3N/C22 15 +5V23 2 0V24 14 Switched 12V25 1 0V26 --- ---
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-49 of 695.3.3.3 VHF/ UHF Programming ProcedureCheck that the required frequency falls within the operational frequency limits of the CellEnhancer.For each channel required, subtract the synthesiser offset from the required operatingfrequency and record the resulting local oscillator frequency.Divide each local oscillator frequency by the channel spacing and check that the result is aninteger (i.e.: no remainder).If the synthesiser division ratio is not an integer value, check the required operationalfrequency and repeat the calculation checking for mistakes.Convert the required local oscillator frequency to synthesiser programming switch statepatterns according to the following table.Switch number Synthesiser offset added when switch in UP position1 +12.5kHz2 +25kHz3 +50kHz4 +100kHz5 +200kHz6 +400kHz7 +800kHz8 +1.6MHz9 +3.2MHz10 +6.4MHz11 +12.8MHz12 +25.6MHz13 +51.2MHz14 +102.4MHz15 +204.8MHz16 +409.6MHz
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-50 of 695.3.3.4 VHF/ UHF Programming ExampleFrequency required: 465.5MHzChannel spacing: 12.5 kHzSynthesiser offset: 21.4MHzThe Local Oscillator frequency is therefore:465.4 – 21.4 = 444.0MHzDividing the LO frequency by the channel spacing of 0.0125MHz:444.0 = 355200.0125This is an integer value, therefore it is OK to proceed.Switch settings16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1Local OscillatorFrequency of444.0MHz 1 0 0 0 1 0 1 0 1 1 0 0 0 0 0 0Switch setting: 0 = switch DOWN (on, frequency ignored)1 = switch UP (off, frequency added)
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-51 of 695.3.4 Channel Selectivity Module (17-010601)5.3.4.1 DescriptionThe channel selectivity module is employed when the Cell Enhancer requirement dictatesthat very narrow bandwidths (single operating channels), must be selected from withinthe operating passband. One channel selectivity module is required for each channel.The Channel Selectivity Module is an Up/Down frequency converter that mixes theincoming channel frequency with a synthesised local oscillator, so that it is down-converted to an Intermediate Frequency (IF) in the upper HF range. An eight pole crystalfilter in the IF amplifier provides the required selectivity to define the operating passbandof the Cell Enhancer to a single PMR channel. The same local oscillator then converts theselected IF signal back to the channel frequency.Selectivity is obtained from a fixed bandwidth block filter operating at an intermediatefrequency (IF) in the low VHF range. This filter may be internal to the channel selectivitymodule (Crystal or SAW filter) or an externally mounted bandpass filter, (LC or HelicalResonator). Various IF bandwidths can therefore be accommodated. A synthesized LocalOscillator is employed in conjunction with high performance frequency mixers, totranslate between the signal frequency and IF.The operating frequency of each channel selectivity module is set by the programming ofchannel selectivity module frequencies and is achieved digitally, via hard wired links,banks of DIP switches (see section 5.3.3), or via an onboard RS232 control module,providing the ability to remotely set channel frequencies.Automatic Level Control (ALC) is provided within each channel selectivity module suchthat the output level is held constant for high level input signals. This feature preventssaturation of the output mixer and of the associated amplifiers.Alarms within the module inhibit the channel if the synthesised frequency is not locked.The synthesiser will not usually go out of lock unless a frequency far out of band isprogrammed.The channel selectivity module is extremely complex and, with the exception of channelfrequency programming within the design bandwidth, it cannot be adjusted or repairedwithout extensive laboratory facilities and the necessary specialised personnel. If a faultis suspected with any channel selectivity module it should be tested by substitution andthe complete, suspect module should then be returned to AFL for investigation.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-52 of 695.3.4.2 Drg. N. 17-003080, Generic Channel Module Block Diagram
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-53 of 695.4 VTA Uplink Duplexer Shelf (50-025305, 4U Chassis)5.4.1 Bandpass Filters (02-011204 & 02-013401) See section 5.1.15.5 VTA Uplink Amplifier Shelf (50-025306, 8U Chassis)5.5.1 20Watt Class A Power Amplifier (12-016301)5.5.1.1 DescriptionThis amplifier is a Class A 20W power amplifier with a frequency range from 380MHz to470MHz in a 1 stage balanced configuration. It demonstrates a very high linearity and a verygood input/output return loss (RL). It has built in a Current Fault Alarm Function.Its housing is an aluminium case (Alocrom 1200 finish) with SMA connectors for the RFinput/output and a D-Type connector for the power supply and the Current Fault AlarmFunction.5.5.1.2 Technical SpecificationParameters Guaranteed Guaranteed UnitsTemperature +25 -10 to +60 °CFrequency Range 380 - 470 MHzSmall Signal Gain ≥23.0 dBGain Flatness 1.5 1.7 dB p-p Max∆Gain vs. Temperature 1.0 dB MaxIn/Out RL 18 18 dB MinOutput Power @ 1dBCompression Point 43.2 43.0 dBm MinOutput 3rd Order IP 55.3 55.0 dBm MinDC Supply Voltage 24 ± 0.5 VdcDC Supply Current 3700 typical 3800 mA Max
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-54 of 695.5.1.3 Drg. N. 12-016370, 20W PA Circuit DiagramPOWER AMPLIFIER,380-470MHz,20W,CLASS A,CIRCUIT DIAGRAM12-016370DJL 06/08/02R26R9R32R3R2R1C1C2R4R5R13R15R16R14R11R12 R10C16R33C17R28R29 R27R30R31R40R6C3C5 C6 C7R22R20R19 R21R8R7 C9C10C13 C12C18R25R24R23C24C25R41C8C23C22C20 C21R39R38R37R36C28 C27R42R46R65C36R67C35R55R44R59R56TR 12R48R53R54R69R76R68R47R64R58R57R66R50 R49TR 8RL11TR 11R74R73TR 7C34R61 R60TR 10R43R62R45DATEDESCRIPTIONNoISSUETHIRD ANGL E PRO JECTION123456789101112ABCDEFGH123456789101112ABCDEFGHPERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITINGRE PRODUCTI ON OR US E OF TH IS DES IGN BY OTHE RS I STHIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.UNLESS OTHERWISE STATEDALL DIMENSIONS ARE IN mmDATEDRAWN CHKD APPDTWO DECIMAL PLACES ± 0.1mmNO DECIMAL PLACE ± 1mmONE DECIMAL PLACE ± 0.3mmBY AERIAL FACILITIES LTD.TOLERANCES SCALECUSTOME R DRAWING NoFax : 01494 777002Tel : 01494 777000Aerial Facilities LimitedEnglandTI TLE2ARF INPUTSAT0R 0SAT15p4. 7pCPL1100R100R+24V3K 3ZD 15. 1v0R 01K 8330R6K 8 6K 8 6K 8TR 2FZT65115p3K 34. 7p6K 8 6K 86K 8CON 1CON 1+A2100uA1+24VC15ZD 25. 1v0R 01K 8330R TR 5FZT65127RG SDMRF904518pTR 1470p10p 7. 5p 2. 2pG SDMRF9045100uC11FZT7516K 8680R+270RTR 32R 2 2R 2 1R 51n 100p+100uC141R 5100p 47pC26100u18p6K 8680R+270RTR 41n 100p27R1KCPL2470p10p 7.5p 2.2p50RRF OUTPUTFZT751TR 62R 2 2R 2 1R 5+C29100u1R 5100p 47p1KHY45BHY45BMI IBAA PROT O TYPE ISSUE 6 /8 /02 DJL0R 0ZD 3 +1. 23V 1u470R13LM 324M12100K100K14IC1:D1182K+-482KBCW714K 7 4K 7270KLM 324MIC1:B8K 23K 66-5+LL41487D2LM 324M1K100n10K10KLL4148D31K1K 823IC1:A-LM 324M+1270KIC1:C+9-10LL41488D14K 7oc good/ 0v badTTL al ar mbadgoodBCW712K 4 560R4K 7BCW71commonCON 110K3V 3152CON 1CON 13CON 1FZT751+LE D 1 R63150R1U3KBCW71BCW71 TR 91KZD 42K 2RL1/122K4CON 11 A PRO DUCTIO N ISSUE( ECN2 7 3 7 )17/ 10/ 02DJL0R 02A ECN288228/4/03DJL
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-55 of 695.5.2 Automatic Gain Control (17-001101, Det. & 17-001201, Atten.)5.5.2.1 DescriptionThe equipment is fitted with an Automatic Gain Control (AGC) system. This is generallyfitted in the Uplink path (not usually needed in the downlink path, as the signal here is at analmost constant level), to avoid overloading the amplifiers (with the associated performancedegradation) should a mobile be operated very close to the unit.Normally the attenuator is at minimum attenuation. The detector/amplifier unit monitors theRF level being delivered by the power amplifier, and when a certain threshold is reached itbegins to increase the value of the attenuator to limit the RF output to the (factory set)threshold. Therefore overloading of the power amplifier is avoided.The factory set threshold is 1dB below the Enhancer 1dB compression point. Someadjustment of this AGC threshold level is possible, a 10dB range is mostly achieved. It isnot recommended under any circumstances to adjust the AGC threshold to a level greaterthan the 1dB compression point as system degradation will occur.The detector comprises of a 50 transmission line with a resistive tap which samples asmall portion of the mainline power. The sampled signal is amplified and fed to aconventional half wave diode rectifier, the output of which is a DC voltage proportional tothe RF input signal.This DC voltage is passed via an inverting DC amplifier with integrating characteristics, tothe output, which drives the attenuation control line of the corresponding AGC attenuator.This unit is fitted at some earlier point in the RF circuit.The unit contains a 12V DC regulator in the detector module, which supplies stabilisedvoltage to the DC amplifier and via an external cableform to the AGC attenuator.For small signals, below AGC onset, the output control line will be close to 12V and theAGC attenuator will have minimum attenuation. As the signal level increases the controlline voltage will fall, increasing the attenuator value and keeping the system output level at aconstant value.The AGC onset level is adjusted by the choice of sampler resistor R1 and by the setting ofpotentiometer VR1.The attenuator comprises a 50 P.I.N diode, voltage-variable attenuator with a range of 3 to30dB. The attenuation is controlled by a DC voltage which is derived from the associatedAGC detector unit.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-56 of 695.5.2.2 Technical SpecificationPARAMETER SPECIFICATIONFrequency Range: up to 1000MHzAttenuation Range: 3 to 30dBAttenuation Steps: continuously variableVSWR: better than 1.2:1RF Connectors: SMA femaleattenuator: 1WPower Handling:detector/amp: >30W (or as required)operation: -10°C to +55°CTemperature Range:storage: -40°C to +70°Cattenuator pcb 50 x 42 x 21mmSize: detector/amp pcb 54 x 42 x 21mmattenuator: 90gWeight: detector/amp: 100g
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-57 of 695.5.2.3 Drg. N. 17-001101, ACG Detector Assembly
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-58 of 695.5.2.4 Drg. N. 17-001171, AGC Detector Circuit Diagram
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-59 of 695.5.2.5 Drg. N. 17-001171C, AGC Detector Parts List
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-60 of 695.5.2.6 Drg. N. 17-001201, AGC Attenuator Assembly Drawing
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-61 of 695.5.2.7 Drg. N. 17-001270, AGC Attenuator Circuit Diagram
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-62 of 695.5.2.8 Drg. N. 17-001270C, AGC Attenuator Parts ListAll other modules in this shelf are described elsewhere in this document.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-63 of 696. INSTALLATION6.1 Initial Installation RecordWhen this equipment is initially commissioned, please use the equipment set-up record sheetin Appendix A. This will help both the installation personnel and AFL should these figuresbe needed for future reference or diagnosis.Installation will be a matter of securing each shelf into its appropriate place in the rackcabinet, connecting all the cables (RF, Antennas, DC and alarm ) to their correctports/connectors and system testing (at the customer’s discretion) to prove the originalspecification. Power should not be applied until all connections have been double-checkedand verified.Refer to the system drawing(s) in section 4. for cabling details.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-64 of 697. MAINTENANCE7.1 General Procedures7.1.1 Basic Fault FindingIn the event that the performance of the system is suspect, a methodical and logical approachto the problem will reveal the cause of the difficulty. The System consists of modules fittedwithin shelves or trays and all housed within a standard 19” rack type cabinet.Transmissions from the main base stations are passed though the system (via air interfaceantennas) to the mobile radio equipment; this could be a handheld radio or a transceiver in avehicle. This path is referred to as the downlink. The return signal path from the mobileradio equipment to the base station is referred to as the uplink.The first operation is to check the alarms of each of the active units and determine that thepower supplies to the equipment are connected and active.This can be achieved remotely (via CEMS, the RS232 Cell Enhancer Management System,if fitted), or locally with the front panel LED’s. The green LED on the front panels ofshelves containing active components should be illuminated, while the red alarm indicatorshould be off.If an Alarm is on, then that individual shelf must be individually tested against the originaltest specification.The individual amplifier units within the shelf have a green LED showing through a hole intheir piggy-back alarm board, which is illuminated if the unit is working correctly.If an amplifier is suspect, check the DC power supply to the unit. If no other fault isapparent use a spectrum analyser to measure the incoming signal level at the input and thenafter reconnecting the amplifier input, measure the output level. Consult with the systemdiagram to determine the expected gain and compare result.In the event that there are no alarms on and all units appear to be functioning it will benecessary to test the system in a systematic manner to confirm correct operation.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-65 of 697.1.2 DownlinkConfirm that there is a signal at the expected frequency and strength from the base station. Ifthis is not present then the fault may lay outside the system. To confirm this, inject adownlink frequency signal from a known source at the master site BTS input and check foroutput at the remote site feeder output.If a signal is not received at the output it will be necessary to follow the downlink paththrough the system to find a point at which the signal is lost. The expected downlink outputfor the given input can be found in the end-to-end test specification.7.1.3 UplinkTesting the uplink involves a similar procedure to the downlink except that the frequenciesused are those transmitted by the mobile equipment.7.1.4 Fault repairOnce a faulty component has been identified, a decision must be made on the appropriatecourse to carry out a repair. A competent engineer can quickly remedy typical faults such asfaulty connections or cables. The exceptions to this are cable assemblies connectingbandpass filter assemblies that are manufactured to critical lengths to maintain a 50-ohmsystem. Care should be taken when replacing cables or connectors to ensure that items are ofthe correct specification. The repair of component modules such as amplifiers and bandpassfilters will not usually be possible in the field, as they frequently require specialistknowledge and test equipment to ensure correct operation. It is recommended that items ofthis type are replaced with a spare unit and the faulty unit returned to AFL for repair.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-66 of 697.1.5 Checking serviceFollowing the repair of any part of the system it is recommended that a full end-to-end test iscarried out in accordance with the test specification and that the coverage is checked bysurvey.It is important to bear in mind that the system includes a radiating cable network and basestations that may be faulty or may have been damaged.7.1.6 Service SupportAdvice and assistance with maintaining and servicing this system are available by contactingAerial Facilities Ltd.7.2 Tools & Test EquipmentThe minimum tools and test equipment needed to successfully service this AFL product areas follows:-Spectrum analyser: 100kHz to 2GHz (Dynamic range = 90dB).Signal Generator: 30MHz to 2GHz (-120dBm to 0dBm o/p level).Attenuator: 20dB, 10W, DC-2GHz, (N male – N female).Test Antenna: Yagi or dipole for operating frequency.Digital multi-meter: Universal Volt-Ohm-Amp meter.Test cable x 2: N male – N male, 2M long RG214.Test cable x 2: SMA male – N male, 1m long RG223.Hand tools: Philips #1&2 tip screwdriver.3mm flat bladed screwdriver.SMA spanner and torque setter.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-67 of 697.3 Care of Modules7.3.1 General CommentsMany of the active modules contain semiconductor devices utilising MOS technology, whichcan be damaged by electrostatic discharge. Correct handling of such modules is mandatory toensure their long-term reliability.To prevent damage to a module, it must be withdrawn/inserted with care. The module mayhave connectors on its underside, which might not be visible to the service operative.7.3.2 Module Removal (LNA’s, general procedure):The following general rules should be followed to remove a module:1 Remove power to the unit2 Remove all visible connectors (RF, DC & alarm)3 Release module retaining screws.4 Slowly but firmly, pull the module straight out of its position. Take care not to twist/turnthe module during withdrawal. (When the module is loose, care may be needed, as theremay be concealed connections underneath).7.3.3 Module Replacement (general):1 Carefully align the module into its location then slowly push the module directly straightinto its position, taking care not to twist/turn it during insertion.2 Reconnect all connectors, RF, alarm, power etc.,(concealed connectors may have to beconnected first).3 Replace retaining screws (if any).4 Double-check all connections before applying power.7.3.4 Power Amplifiers1) Remove power to the unit. (Switch off @ mains/battery, or remove DC in connector)2) Remove alarm wires from alarm screw terminal block or disconnect multi-way alarmconnector.3) Carefully disconnect the RF input and output coaxial connectors (usually SMA)If alarm board removal is not required, go to step 5.4) There is (usually) a plate attached to the alarm board which fixes it to the amplifier,remove its retaining screws and the alarm board can be withdrawn from the amplifier inits entirety. On certain types of amplifier the alarm board is not mounted on a dedicatedmounting plate; in this case it will have to firstly be removed by unscrewing it from themounting pillars, in most cases, the pillars will not have not have to be removed beforelifting the amplifier.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-68 of 695) If the amplifier to be removed has a heatsink attached, there may be several differentways it can have been assembled. The most commonly used method, is screws throughthe front of the heatsink to threaded screw holes (or nuts and bolts), into the amplifierwithin the main case. If the heatsink is mounted on the rear of the main case (e.g., againsta wall in the case of wall mounted enclosures), then the fixing method for the heatsinkwill be from within the case, (otherwise the enclosure would have to be removed from thewall in order to remove the heatsink).When the heatsink has been removed, the amplifier may be unscrewed from the maincasing by its four corner fixings and gently withdrawn.Fitting a new power amplifier module will be the exact reverse of the above.Note: Do not forget to apply fresh heatsink compound to the heatsink/main casejoint and also between the amplifier and the main case.7.3.5 Low Power Amplifier Replacement1 Disconnect the mains power supply and disconnect the 24V dc supply connector for theLPA.2 Disconnect the RF input and output cables from the LPA.3 Disconnect the alarm connector.4 Remove the alarm monitoring wires from (D type connector) pins 9 and 10.5 Remove the LPA module by removing the four retaining screws, replace with a newLPA module and secure it with the screws.6 Connect the RF cables to the LPA input and output connectors. Reconnect the wires tothe alarm board connector pins 9 and 10.7 Reconnect the DC supply connector and turn the mains switch on.Note: Tighten SMA connectors using only a dedicated SMA torque spanner. IfSMA connectors are over-tightened, irreparable damage will occur. . Do not useadjustable pliers to loosen/tighten SMA connectors.Also take care not to drop or knock the module as this can damage (or misalign in thecase of tuned passive modules) sensitive internal components. Always store the modulesin an environmentally friendly location7.3.6 Module Transportation:To maintain the operation, performance and reliability of any module it must be stored andtransported correctly. Any module not installed in a whole system must be kept in an anti-static bag or container. These bags or containers are normally identified by being pink orblack, and are often marked with an ESD label. Any module sent back to AFL forinvestigation/repair must be so protected. Please contact AFL’s quality department beforereturning a module.
9 Way Channelised UHF Cell EnhancerMaintenance HandbookH/book Number:-50-025301HBKM Issue No:-1Date:-04/07/2003 Page:-69 of 69APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONSGENERAL INFORMATIONSite Name: Client Name:Date: AFL Equip. Model N.ANTENNA SYSTEMSModel Gain Azimuth CommentsA - Service AntennaB – Donor AntennaType Loss Length CommentsC – Service FeederD – Donor FeederINITIAL PARAMETERSE – CE Output Power dBmF – Antenna Isolation dBG – Input signal level from donor BTS dBmOperating Voltage VDOWNLINK CALCULATIONSParameter Comments ValueInput signal level (G)dBmCE max. o/p power (E)dBmGain setting E - G dBIsolation required (Gain + 10dB) dBService antenna gain (A)dBService antenna feeder loss (C)dBEffective radiated power (ERP) E+A-C dBmAttenuator setting CE gain-gain setting dBIf the input signal level in the uplink path is known and steady, use the following calculationtable to determine the gain setting. If the CE features Automatic Gain Control the attenuatorshould be set to zero and if not, then the attenuation setting for both uplink and downlinkshould be similar.UPLINK CALCULATIONSParameter Comments ValueInput signal level dBmCE max. o/p power (E)dBmGain setting dBRequired isolation dBDonor antenna gain (B)dBDonor antenna feeder loss (D)dBEffective radiated power (ERP)E+B-D dBmAttenuator setting (CE gain-gain setting) dB

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