M Title Page Spectrum Series™ Base Loaded Mobile Antennas Installation Manual Motorola Inc. 1301 E. Algonquin Rd., Schaumburg, IL 60196-1078, U.S.A.
Foreword This manual applies to mobile radios, unless otherwise specified. It includes instructions for installing antennas in a vehicle roof-top configuration. Product Safety and RF Exposure Compliance Caution Before using this product, read the operating instructions for safe usage contained in the Product Safety and RF Exposure booklet enclosed with your radio. ATTENTION! This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements.
Spectrum™ Series Base Loaded Mobile Antennas Manufactured by Motorola • Antenna Installation • Mounting Instructions • Cutting Charts • Replacement Parts • Connector Instructions Important Read all instructions carefully before starting the installation. Introduction Thank you for selecting the Spectrum mobile antenna. The Spectrum antennas have been designed to withstand demanding and rugged environments.
2 Introduction Entering Garages Caution Remove the antenna from the vehicle when entering a garage to prevent damage to the vehicle and the antenna whip/ball from damaging overhead light fixtures and garage doors. Automatic Car Wash Caution Remove the entire antenna from the vehicle before entering the automatic car wash to prevent damage to the antenna and vehicle. The antenna mount contact must be wiped dry to prevent moisture from damaging the contact.
Mobile Antenna Installation 3 Mobile Antenna Installation Mobile Radio Operation and EME Exposure Observe the following caution and electromagnetic energy exposure (EME) statements when installing antennas: Use caution when installing antennas with mobile radio equipment using transmitter powers in excess of 7 W. Caution NOTE: For low power mobile radios (7 W or less), there are no antenna type or installation restrictions.
4 Mobile Antenna Installation Antenna Assembly Instructions If antenna mount has not been installed, refer to the Antenna Mount Installation instructions. Assemble the antenna assembly (except the whip) onto the mounting base as shown in Figure 1. 1. Place the lock washer on stud loading coil/base housing. 2. Assemble either the standard duty or heavy duty spring adaptor to the base housing assembly by threading onto the housing stud with lock washer already in place. 3.
Mobile Antenna Installation 5 Antenna Mount Installation Instructions Roof (Permanent 3/4” Hole) Mount Instructions Tools Required: • Safety glasses • Hole saw (Motorola part # RPX-4378A) • 15/16” open-end wrench • Solder, 60/40 rosin flux • Crimp tool, Motorola part # 66-80388A26 (Mini-UHF Connector only) • Electric drill • Spanner wrench, Motorola part # 66-80371A75 • Soldering iron, 40 – 75 watts 1.
6 Mobile Antenna Installation Locking Nut 43-83881B01 (Plated) O-Ring 42-83940B01 Bushing Assembly Holes for holding the Bushing with Long Nose Pliers Cap Insulator Cable Car Roof Paint removed in Ring Figure 4. 4. Insert spanner wrench, part # 66-80371A75 or the tops of a needle nose pliers in bushing assembly to prevent mount assembly from slipping. Use a 15/16” open-end wrench to tighten locking but firmly against vehicle surface.
Mobile Antenna Installation 7 3. Route coaxial cable from the trunk lid to the radio. Magnet Mount Installation WARNING Do not use magnet mount on vinyl roofs, magnet mount will not properly hold the antenna on vehicle because holding power is reduced. Magnet mount will not “hold on” to aluminum and nonmetallic surfaces. 1. Remove all dirt and grime that will prevent magnet mount from seating securely. 2. Place magnet mount in final position. Sliding the mount may scratch paint surface. 3.
8 Mobile Antenna Installation 6. Screw adaptor to the body of plug assembly. Solder braid to body of plus assembly through holes. Solder center conductor of cable to plug contact of plug assembly. Refer to Figure 7F. 7. For final assembly, screw coupling on plug assembly. 8. Connect cable to antenna connector on radio set. Tighten coupling ring cross section of final assembly as shown in Figure 7G. NOTE: Coupling ring and plug sub assembly comprise of Motorola part number: 28-82021G01.
Mobile Antenna Installation 9 Mini-UHF Connector Installation #28-84606M01 Installation Instructions Use Motorola tool part # 66-80388A26 (Refer to Figure 8). 1. Slip ferrule and collar onto cable. See Figure 10. 2. Prepare cable to strip dimensions as per Figure 11. 3. Insert stripped cable into plug body until conductor is exposed (front end) and dielectric bottoms inside body. See Figure 10. 4. Crimp center contact using crimp area C of Figure 8 .
10 Mobile Antenna Installation Base of Pin Suggested Crimp Area Tip of Pin 2 mm Figure 9. Coaxial Cable Stripping Dimensions Flared Braid Ferrule Connector Body Collar Cable Inserted into Connector Body Protruding Center Conductor Crimp Center Contact after Inserting Cable Collar Slipped Forward over Connector Body Push Ferrule Forward over Braid. Flange Butts against Connector Body. Crimp Ferrule to Complete Crimp MAEPF-27622-O Figure 10.
Mobile Antenna Installation 11 A B Dim. A = 15/16" Dim. B = 19/32" Dim. C = 19/64" C MAEPF-27623-O Figure 11.
12 Mobile Antenna Installation Table 2 Spectrum Antennas (Continued) Frequency MHz Gain Duty Max Power Watts Antenna Only Roof Mount Kit Trunk Lid Mount Kit Magnet Mount Kit 496 – 512 5 dB Heavy 150 RAE-4016A RAE-4016ARA RAE-4016ATA RAE-4016AMA With Low Loss Cable With Low Loss Cable 406 – 420 5 dB Heavy 150 ** RAE-4012ARL RAE-4012ATL ** 450 – 470 5 dB Heavy 150 ** RAE-4014ARL RAE-4014ATL ** 470 – 496 5 dB Heavy 150 ** RAE-4015-ARL RAE-4015ATL ** 5 dB Heavy 150
Mobile Antenna Installation 13 6. Use the adjustment range of the whip in the adaptor in order to minimize the VSWR. 7. Insert the shorter part of the allen wrench into the screw and tighten the set screw at tight as yo can by hand. If a torque wrench is available, tighten set screw to a torque of 25 – 30 inchlbs. A simple table for converting the ratio of forward power and reflected power to VSWR is given below: Table 3 Pfwd/Pref VSWR 440.6 1.1 : 1 58.8 1.3 : 1 25.0 1.5 : 1 14.9 1.7 : 1 10.
14 Spectrum™ by Motorola Spectrum™ by Motorola Cutting chart lengths are approximate. Whip length will wary with type of vehicle, mount location and type of mount. Cut 1-1/2 inches longer than chart length, then trim for minimum reflected power.
Spectrum™ by Motorola Standard (No Spring) 15 Heavy Duty Spring
16 Spectrum™ by Motorola Standard (No Spring) Heavy Duty Spring
Spectrum™ by Motorola 17 Spectrum™ by Motorola Cutting chart lengths are approximate. Whip length will wary with type of vehicle, mount location and type of mount. Cut 1-1/2 inches longer than chart length, then trim for minimum reflected power.
18 Spectrum™ by Motorola Standard (No Spring) Heavy Duty Spring
M Motorola Inc. 1301 E. Algonquin Rd., Schaumburg, IL 60196-1078, U.S.A. MOTOROLA, the Stylized M Logo, and ASTRO are registered in the U.S. Patent and Trademark Office. All other product or service names are the property of their respective owners. © 2000 – 2010 by Motorola, Inc. All rights reserved.
