Motorola Solutions 99FT3081 CDM1550LS+ 220MHz Mobile Radio User Manual 200 mobile quarter wave antenna

Motorola Solutions, Inc. CDM1550LS+ 220MHz Mobile Radio 200 mobile quarter wave antenna

Antenna Manual RESEND

Motorola, The Stylized M Logo, and Intelligence Everywhere areregistered trademarks of Motorola, Inc. 6880360B49-ACopyright © 2000, 2002 Motorola, Inc. All Rights Reserved. *6880360B49*Product Safety and RF Exposure ComplianceATTENTION!This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements. Before using this product, read the RF energy awareness information and operating instructions in the Product Safety and RF Exposure booklet enclosed with your radio (Motorola Publication part number 68P81095C99) to ensure compliance with RF energy exposure limits.IntroductionThe antennas described in this section are suppliedwith an appropriate antenna whip, coaxial cable andconnector, and mounting hardware. Mounting hard-ware and installation is described for permanent vehi-cle type mounting.Refer to Table 1 for model identification. Figures 1through 3 identify the component parts of the antenna.Refer to the recommendations for antenna locationparagraph at the end of this instruction section forsafety information.InstallationMounting Hardware Installation – Roof MountGeneralThe installation procedure which follows is for a typi-cal passenger car. The procedure may vary slightlywith the type of vehicle on which the antenna is to beinstalled. Generally speaking, however, the proceduresoutlined are of a universal nature.NOTEThe antenna should be mounted on a flatmetal roof of .020 to .040 inch thickness.1. First, select a location for the antenna as nearthe center of the roof as possible.2. The headlining may be probed with the fin-gers to make sure that all points of obstructionare avoided.Installation Procedure Single Wall Construction1. Locate the center of the roof by careful mea-surement, remove the headlining as necessary,CAUTION! Before using this product, read theoperating instructions for safe usagecontained in the Product Safety andRF Exposure booklet enclosed withyour radio.Table 1. Model ComplementAntenna Model Frequency Range (MHz)Roof Mount ModelsRAD4012ARBRAD4020ARBHKAD4001ARAE4022ARBRAE4034ARBRAF4021ARB150.8-162162-174216-225403-430450-470806-870!C a u t i o nFigure 1. Whip Parts IdentificationROD WITH CHROME NUT (ROD)ANTENNA ONLYMOTOROLA PART NO. ANTENNA MODEL NO. FREQ. RANGE (MHz)01-80352A0701-80352A0801-80305K0501-80352A1101-80352A9001-83938B0301-83938B0401-83938B1201-83938B0601-83938B11RAD4012ARBRAD4020ARBHKAD4001ARAE4034ARBRAF4021ARB150.8-162162-174216-225450-470806-870Mobile 1/4-Wave AntennasRoof Mount
26880360B49-A July, 2002Mobile 1/4-Wave Antennas InstallationFigure 2. Roof Mount Parts Identification01-80300B02CABLE ASSEMBLY & INSTALLATION KIT(150.8-174 MHz, 216-225 MHz, 403-470 MHzAND 806-870 MHz RANGE)MOTOROLA PART NO. DESCRIPTION01-84988K01 BUSHING ASSEMBLY11-80369B40 SILICONE GREASE14-83798C01 CAP, INSULATOR28-84606M01 MINI UHF CONNECTOR30-80336A10 14 FEET RG58A/U COAX42-83940B01 “O” RING43-83881B01 LOCKING NUTFigure 3. Cross-Section of Assembled Antenna
July, 2002 6880360B49-A 3Installation Mobile 1/4-Wave Antennas and drill a pilot hole down through the roof. Ifthe interior light of the car is centered in theroof, remove this light and fixture and drillthe pilot hole up through the roof at about thecenter of the interior light mountings. Thiscenters the antenna mount on the roof andallows for easy access.2. Drill a 3/4-inch hole from the top of the roofuntil the saw bottoms. Use a Motorola holecutting saw (01-80382A25) or equivalent.When the saw bottoms on the roof, it cleansoff the paint in a neat circle and assures goodcontact with the locking nut.IMPORTANTFor proper seating of brushing assembly,remove burrs and scrape any foreignmatter from underside of hole out to atleast 1/8-inch from edge.3. Determine the routing of the cable from theantenna mounting base to the radio set; thenremove the molding and trim necessary tofacilitate pulling the cable through.NOTETo ensure ease of assembly, thread thelocking nut on and then off the bushingassembly before installation. Thisremoves any burrs which may be present.4. Refer to Figure 4. From the top, feed theRG-58A/U lead-in cable between the headlin-ing and the metal roof. Then route the cablebetween the roof and the radio set.5. Refer to Figure 5. The bushing assembly isnow in a position to drop into the hole in theroof. It should be tilted at a slight angle andfed into the 3/4-inch hold. The threaded topwill not fall through the hole.6. Refer to Figure 7. Hold the antenna bushingassembly in place with the index finger andthread the locking nut onto it as shown.7. Pull up on the bushing assembly as illustratedin Figure 8, and make sure it is centered andseated (both shoulders inside the drilled hole),and that the "O" ring is in the groove in thelocking nut. (As furnished, the "O" ring hasbeen placed in the locking nut groove andimbedded in silicone grease.) Use a 15/16-inch open-end wrench to tighten the lock-ing nut until it bottoms firmly against the rooftop.IMPORTANTRefer to Figure 2. If the bushing assemblyshould slip or rotate for any reason dur-ing the tightening procedure, insert thetips of a long nose plier or spannerwrench into the two holes in the bushingassembly and apply force to preventrotation until the locking nut is tight.The locking nut must come into contact with the carroof to insure the proper antenna radiation pattern.This can only happen when the rubber "O" ring is fullycompressed. 8. Take up the slack in the cable and replace theheadlining retainer molding. 9. Replace headlining and dome light ifremoved.Installation Procedure - Double Wall ConstructionVehicles With Dome Lights orRemovable Headlining1. Remove the dome light from its mount or removethe headlining from the installation area.2. Drill a small pilot hole centered in the roof ofthe vehicle. The center of the cavity where thedome light was removed is sufficiently close.3. Using a 1-1/4-inch diameter hole saw cut ahole in the inside layer of the metal.4. Remove the metal and filler from this 1-1/4-inch diameter hole.Figure 4. Coaxial Cable Insertion Figure 5. Bushing Assembly Insertion
46880360B49-A July, 2002Mobile 1/4-Wave Antennas Installation5. Complete the installation per installation pro-cedure given for vehicles with single wall con-struction. A completed mount is illustrated inFigure 9.Vehicles Without Dome LightsWhen the vehicle has no dome light, and it is not feasi-ble to remove the headlining to get to the inside sur-face, proceed as follows:1. Locate the center of the roof and make surethe area beneath this point is clear to allowpassage of a drill. 2. With a 3/4-inch diameter hole cutting sawcarefully cut a 3/4-inch hole from the top ofthe roof through both thicknesses of metal.Clean the metal in a neat circle around thehole to assure a good contact between the roofmetal and the locking nut.3. Remove any burrs and remove the filler sepa-rating the roof thickness for a distance of 1/4-inch back from the hole.Figure 7. Locking Nut PositioningFigure 8. Locking Nut Tightening
July, 2002 6880360B49-A 5Installation Mobile 1/4-Wave Antennas 4. Install the mount to the outside roof thicknessper installation procedure given for vehicleswith single wall construction..Mini-UHF Connector InstallationUse Motorola hand tool part #66-80388A26 (Refer toFigure 12). A deluxe rachet type tool is available; orderpart #66-80334B40.Installation Instructions1. Slip ferrule and collar onto cable. Refer toFigure 13.2. Prepare cable to strip dimensions perFigure 14, which is also marked on the handtool.3. Insert stripped cable into plug body until con-ductor is exposed (front end) and dielectricbottoms inside body. Refer to Figure 13.4. Crimp center contact using proper crimpsection of tool. Refer to Figure 12 marked"CENTER CONTACT."5. Push collar forward onto plug assembly. Fitcable braid over the support sleeve of the con-nector. Refer to Figure 13.6. Push ferrule over braid until flange buttsagainst connector body. Refer to Figure 13.Using the correct crimp area of the tool, crimpthe ferrule close to the plug body. SeeFigure 12, crimp location "C." Crimp ferrule asecond time close to the cable end.7. The protruding center conductor should betrimmed flush with the end of the center contact.Figure 10. Roof Mount in Vehicle Without Dome LightFigure 9. Roof Mount in Vehicle WithDome Light or Removable HeadliningFigure 11. Typical Mount Location
66880360B49-A July, 2002Mobile 1/4-Wave Antennas Frequency ConversionFrequency ConversionSee Table 1. Antennas in each band are equipped withwhip radiators cut to the proper length for that specificband. To change from one band to another, a whipassembly of the proper length should be substitutedfor one previously in use. Antennas in the 136-150.8MHz range are also equipped with a spring washer(roof mount models only; see Figure 2) to provide forproper impedance matching. Should it be desired tochange from an antenna in the 136-150.8 MHz range toone in the other ranges, this washer must be removedin addition to changing the whip assembly. Con-versely, to shift from the other ranges to the 136-150.8 MHz range, a spring washer must be installed inaddition to changing the whip assembly.Motorola Recommendations for Mobile Antenna LocationRecommended mobile antenna installations are lim-ited to metal body vehicles at the center of the roof andcenter of the trunk deck locations. Refer to Table 2.The antenna installation must additionally be in accor-dance with:• the requirements of the antenna manufacturer/supplier• instructions in the Radio Installation manual.Antenna LocationMobile Antenna InstallationSelecting an Antenna Site1. Install the vehicle antenna external to thevehicle and in accordance with the require-ments contained in this manual.Figure 12.Plug Assembly ProcedureFigure 13. Plug Assembly Procedure
July, 2002 6880360B49-A 7Motorola Recommendations for Mobile Antenna Location Mobile 1/4-Wave Antennas 2. The best mounting location for the antenna isin the center of a large, flat conductive surface.In almost all vehicles, mounting the antennain the center of the roof will satisfy theserequirements. A good alternative location is inthe center of the trunk lid. If you use the trunklid, ensure that the trunk lid is grounded byconnecting grounding straps between thetrunk lid and the vehicle chassis.3. Ensure the antenna cable can be easily routedto the radio. Ensure that the antenna cable isrouted separately and not in parallel to anyother vehicle wiring or mobile radio cablewiring.4. Check the antenna location for any electricalinterference.NOTEAny two metal pieces rubbing againsteach other (such as seat springs, shiftlevers, trunk and hood lids, exhaustpipes, etc.) in close proximity to theantenna can cause severe receiver inter-ference.5. If the vehicle is equipped with an electronicanti-lock braking system (ABS), mount theantenna at the center of the roof or trunk lidand do not route the antenna cable near theABS Modulator Box. Mount the radio as faraway from the Modulator Box as physicallypossible. This minimizes radio interference tothe modulator box from the radio.6. Make sure the mobile radio antenna isinstalled at least one foot (30.48cm) away fromany other antenna on the vehicle.Figure 14.Tabl e 2.Standard metal passenger vehicles Center roof or center trunk lidVans, pickups, and other light trucks (metal roofs) Center roofHeavy duty equipment with metal roofs (heavy duty trucks, semi-tractors, heavy refuse trucks, cement mixer trucks)Center cab roofSpecialty vehicles (such as T-roofs, sun roofs, or convert-ibles)Center trunk lid – recommended only for transmitter output of less than 7 W.Other vehicles Contact your Motorola Field Technical Representative.
86880360B49-A July, 2002Mobile 1/4-Wave Antennas Motorola Recommendations for Mobile Antenna Location

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