Futurecom Systems Group ULC DVRSUHF MOBEXCOM DVRS Vehicular Repeater User Manual Installation Manual

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Title Page

Spectrum Series™

Base Loaded Mobile Antennas

Installation Manual

6880309C12-F

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

ATTENTION!

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

6881095C99) to ensure compliance with RF energy exposure limits.

For a list of Motorola-approved antennas, batteries, and other accessories, visit the following website:

http://www.motorola.com/governmentandenterprise

Document Copyrights

No duplication or distribution of this document or any portion thereof shall take place without the express written permission

of Motorola. No part of this manual may be reproduced, distributed, or transmitted in any form or by any means, electronic

or mechanical, for any purpose without the express written permission of Motorola.

Disclaimer

The information in this document is carefully examined, and is believed to be entirely reliable. However, no responsibility is

assumed for inaccuracies. Furthermore, Motorola reserves the right to make changes to any products herein to improve

readability, function, or design. Motorola does not assume any liability arising out of the applications or use of any product

or circuit described herein; nor does it cover any license under its patent rights nor the rights of others.

Trademarks

MOTOROLA, the Stylized M logo, and ASTRO are registered in the US Patent & Trademark Office. All other products or

service names are the property of their respective owners.

Before using this product, read the operating instructions

for safe usage contained in the Product Safety and RF

Exposure booklet enclosed with your radio.

C a u t i o n

Spectrum™ Series Base Loaded Mobile Antennas

Manufactured by Motorola

• Antenna Installation

• Mounting Instructions

• Cutting Charts

• Replacement Parts

• Connector Instructions

Introduction

Thank you for selecting the Spectrum mobile antenna. The Spectrum antennas have been designed

to withstand demanding and rugged environments. During the design phase, the antennas are put

through extensive Accelerated Life Testing (ALT), which simulates years of in-field service. As a

result, potential problems are designed out, helping to ensure that the antennas which you receive

can give you years of dependable performance.

Motorola Communications Part Division

1313 E. Algonquin Road

Schaumburg, Illinois 60196

To order, Call Toll-Free: 1 - 800- 422 - 4210

Before You Start

Roof Mount Safety Precautions and Problem Prevention – for Motor Vehicle Use only

Safe Antenna Installation

Read all instructions carefully before starting the installation.

Antenna contact with high voltage wires may result in death

from electrocution.

Since April 3, 1994, the warranty on Spectrum antennas have been

changed to one year. Motorola manufactured Spectrum antennas are

warranted to be free from defects in workmanship and materials for a

period of (1) one year from the date of shipment.

Be sure to mount the antenna on a horizontal surface to keep

the antenna as vertical as possible, thus preventing the

antenna from protuding beyond the vehicle and causing

bodily injury and/or property damage.

Important

DANGER

Important

C a u t i o n

2Introduction

Entering Garages

Automatic Car Wash

Installation

Where to Mount the Antenna

General

Motorola recommends that mobile antennas be located as follows:

Select a location for the antenna as near the center of the roof as possible. Probe the headlining with

your fingers to make sure that all points of obstruction are avoided.

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.

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.

Recommended Antenna Location

Standard Metal Passenger vehicles Recommended Location

Standard metal passenger vehicles Center roof or center trunk lid

Vans, pickups, and other light trucks

(metal roofs)

Center roof

Heavy duty equipment with metal roofs

(heavy duty trucks, semi-tractors, heavy

refuse trucks, cement mixer trucks)

Center cab roof

Specialty vehicles (such as T-roofs, sun

roofs, or convertibles)

Center trunk lid–recommended only for transmitter

output of less than 7 W.

Other vehicles Contact your Motorola Field Technical

Representative.

C a u t i o n

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:

NOTE: For low power mobile radios (7 W or less), there are no antenna type or installation

restrictions.

To assure optimal radio performance and that human exposure to radio frequency electromagnetic

energy is within the guidelines references in this document, transmit only when people outside the

vehicle are at least the minimum distance away from a properly installed, external mounted antenna.

Table 1 lists the minimum distance from several different ranges of rated radio power.

Selecting an Antenna Site

1. Install the vehicle antenna external to the vehicle and in accordance with the requirements of

this documents.

2. The best mounting location for the antenna is at the center of a large, flat, conductive surface.

In almost all vehicles, mounting the antenna in the center of the roof will satisfy these

requirements. A good alternative location is in the center of the trunk lid. If you use the trunk

lid, ensure that the trunk lid is grounded by connecting groundling straps between the trunk lid

and the vehicle chassis.

3. Ensure the antenna cable can be easily routed to the radio. Ensure that the antenna cable is

routed separately and not in parallel to any other vehicle wiring or mobile radio cable wiring.

4. Check the antenna location for any electrical interference.

NOTE: Any two metal pieces rubbing against each other, such as seat springs, shift levers, trunk and hood lids,

exhaust pipes etc.) in close proximity to the antenna can cause severe receiver interference.

5. If the vehicle is equipped with an electronic anti-lock braking system (ABS), and the antenna

will be trunk mounted, then install the antenna on the side opposite to the braking modulator

box. This minimizes radio interference to the modulator box from the radio.

6. Make sure the mobile radio antenna is installed at least one foot (30.48 cm) away from any

other antenna on the vehicle.

Use caution when installing antennas with mobile radio

equipment using transmitter powers in excess of 7 W.

Table 1 Rated Power and Distance

Rated Power of Vehicle-installed

Mobile Two-Way Radios Minimum Distance from Transmitting Antenna

7 to 15 Watts 1 foot (30.5 cm)

16 to 50 Watts 2 feet (61 cm)

More than 50 Watts 3 feet (91.5 cm)

C a u t i o n

4Mobile 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. Hand tighten the adaptor until the lock washer is fully compressed.

4. Press rubber gasket onto the bottom of the coil housing.

5. Do not insert the antenna whip into the antenna adaptor at this time. Refer to the Tuning the

Antenna section on page 1-12 for further instructions.

Figure 1.

Standard Duty Whip Adapter

58-80368B32

Lock washer

04-80378B70

Loading Coils/Base housing

01-80358A86 30 – 36 MHz

01-80358A87 36 – 42 MHz

01-80358A88 42 – 50 MHz

01-80358A89 66 – 88 MHz

01-80358A90 136 – 174 MHz

01-80358A91 406 – 512 MHz Heavy Duty Spring

01-80358A92 406 – 512 MHz Standard Duty

Whip

47-80369B56 30 – 174MHz

Set Screw

03-80374B24

Heavy Duty Spring

01-80373B34

Rubber Gasket

32-80369B53

Whip

01-80358A37 406 – 420 MHz

01-80358A38 445 – 470 MHz

01-80358A39 470 – 494 MHz

01-80358A40 494 – 512 MHz

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. Drill a 3/4” hole in the vehicle with antenna hole cutting saw, Motorola part # RPX-4378A, and

remove all burrs. The antenna hold saw will remove paint in a narrow ring around hole to

assure good metal contact between vehicle and mount.

2. Apply generous amounts of silicon grease to inner and outer threads of brass lock nut. Feed

coaxial cable and mount through hole as shown in Figure 2.

Figure 2.

3. Thread locking nut onto mount and pull up mount base to properly align in hole. While pulling

up, finger tighten the locking nut against roof top as show in Figure 3.

Figure 3.

MAEPF-27629-O

6Mobile Antenna Installation

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. The locking nut must be in contact with vehicle

metal to ensure proper antenna radiation. See Figure 4.

Trunk Lid Mount Installation

1. Trunk lid mount may be placed at the center of trunk lid near the rear window, or to the side,

preventing the antenna from hitting the rear window when raising the trunk lid. Be sure the

coaxial cable is not pinched under the mount clamp bracket. Refer to Figure 5.

Figure 5. Coaxial Cable Insertion

2. Using the allen wrench supplied, tighten the set screws clockwise until the set screws break

through the paint, creating a good contact.

Car Roof

Holes for holding the Bushing

with Long Nose Pliers

O-Ring

42-83940B01

Bushing Assembly

Cap Insulator

Cable

Paint removed in Ring

Locking Nut

43-83881B01 (Plated)

Mobile Antenna Installation 7

3. Route coaxial cable from the trunk lid to the radio.

Magnet Mount Installation

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. Route coaxial cable to the radio,. Refer to Figure 6.

Figure 6. Magnetic Mounted Base

Connector Installation

Before installing the connector, cut off any excess length of cable (at the radio end) to avoid

unnecessary signal loss. When the necessary preparations have been made, install the connector

using the following steps:

UHF Connector (Motorola part # 28-82021G01)

1. Disassemble the connector as shown in Figure 7A.

2. Cut off end of cable squarely and remove 3/4” of vinyl jacket. Refer to Figure 7B.

3. Slide coupling ring and adaptor on cable as in Figure 7C.

4. Fan braid slightly and fold back as shown in Figure 7D.

5. Position adaptor to dimension as shown in Figure 7E. Press braid back over body of adaptor

and trim to 3/8”. Base 5/8” of conductor. Tin exposed center conductor. Add teflon washer for

470 MHz and higher.

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 non-

metallic surfaces.

Use a hot soldering iron. DO NOT USE EXCESSIVE HEAT

OR SOLDER. Solder quickly to avoid melting surrounding

insulation.

W A R N I N G

C a u t i o n

8Mobile 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.

Figure 7.

Coupling

Ring

Adapter

58-854020

Plug

Sub-Assembbly

TEFLON Washer

(470MHZ and higher)

04-84506K01

3”

Adapter

3”

TEFLON Washer

(470MHZ and higher)

1/8” of Exposed Insulation

for Lower Frequencies

3”

5”

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 . Crimp at base of center contact, avoid

crimping at the tip. Refer to Figure 9.

5. Push collar forward onto plug assembly. Fit cable braid over support sleeve of connector. See

Figure 10.

6. Push ferrule over braid until flange butts against connector body. Refer to Figure 10. Using

the correct crimp area of tool, crimp ferrule close to plug body. Crimp ferrule for a second time

close to cable end.

7. Protuding center conductor should be trimmed with end of center contact.

Figure 8. Motorola Crimping Tool 66-80388A26

.256

.319

.068

.051

.213

FIVE CRIMP AREAS

10 Mobile Antenna Installation

Figure 9. Coaxial Cable Stripping Dimensions

Figure 10.

Suggested Crimp Area

Base of Pin

Tip of Pin

2 mm

Flared

Braid

Connector

Body

Collar

Ferrule

Cable Inserted into

Connector Body

Crimp Center

Contact after

Inserting Cable

Protruding

Center

Conductor

Collar Slipped

Forward over

Connector Body

Push Ferrule Forward

over Braid. Flange

Butts against Connector

Body. Crimp Ferrule to

Complete Crimp

MAEPF-27622-O

Mobile Antenna Installation 11

Figure 11.

Table 2 Spectrum Antennas

Frequency MHz Gain Duty Max Power

Watts Antenna Only Roof Mount Kit Trunk Lid Mount Kit Magnet Mount Kit

30 – 36 0 dB Standard 100 RAB-4002A RAB-4002ARA * * RAB-4002AMA

36 – 42 0 dB Standard 100 RAB-4003A RAB-4003ARA * * RAB-4003AMA

42 – 50 0 dB Standard 100 RAB4004A RAB-4004ARA * * RAB-4004AMA

30 – 36 0 dB Heavy 100 RAB-4012A RAB-4012ARA * * RAB-4012AMA

36 –42 0 dB Heavy 100 RAB-4013A RAB-4013ARA * * RAB-4013AMA

42 – 50 0 dB Heavy 100 RAB-4014A RAB-4014ARA * * RAB-4014AMA

66 – 88 0 dB Standard 100 RAC-4000A RAC-4000ATA * * RAC-4000AMA

140 – 174 3 dB Standard 150 RAD-4000A RAD-4000ARA RAD-400DATA RAD-4000AMA

140 – 174 3 dB Heavy 150 RAD-4010A RAD-4010ARA RAD-401DATA RAD-4010AMA

With RG58 A/U Cable With RG58 A/U Cable With RG58 A/U Cable

406 – 420 5 dB Standard 150 RAE-4002A RAE-4002ARA RAE-4002ATA RAE-4002AMA

445 – 470 5 dB Standard 150 RAE-4004A RAE-4004ARA RAE-4004ATA RAE-4004AMA

470 – 495 5 dB Standard 150 RAE-4005A RAE-4005ARA RAE-4005ATA RAE-4005AMA

495 – 512 5 dB Standard 150 RAE-4006A RAE-4006ARA RAE-4006ATA RAE-4006AMA

With Low Loss Cable With Low Loss Cable

406 – 420 5 dB Heavy 150 * * RAE-4002ARL RAE-4002ATL * *

450 – 470 5 dB Heavy 150 * * RAE-4004ARL RAE-4004ATL * *

470 – 496 5 dB Heavy 150 * * RAE-4005ARL RAE-4005ATL * *

496 – 512 5 dB Heavy 150 * * RAE-4006ARL RAE-4006ATL * *

With RG58 A/U Cable With RG58 A/U Cable With RG58 A/U Cable

406 – 420 5 dB Heavy 150 RAE-4012A RAE-4012ARA RAE-4012ATA RAE-4012AMA

450 – 470 5 dB Heavy 150 RAE-4014A RAE-4014ARA RAE-4014ATA RAE-4014AMA

470 – 496 5 dB Heavy 150 RAE-4015A RAE-4015ARA RAE-2015ATA RAE-4015AMA

Dim. A = 15/16"

Dim. B = 19/32"

Dim. C = 19/64"

MAEPF-27623-O

12 Mobile Antenna Installation

Tuning the Antenna

NOTE: Tune antenna in an open area at least 12 feet away from any metal objects.

NOTE: Lengths shown on the cutting chart are approximate. Due to antenna variations and mounting

location effects, we recommend cutting the antenna rod 1 1/2” longer than the chart and then

cutting 1/2” off at a time until reflected power is minimized.

NOTE: DUE TO ANTENNA INTERACTION WITH VEHICLE, SOME LOW BAND ANTENNA

MOUNTING LOCATIONS WILL NEVER ACHIEVE 1.5:1 VSWR. In this case, trim the whip

for minimum reflected power. A simple table for converting the radio of forward power and

reflected power to VSWR is shown below in Tabl e 3 .

1. Locate the transmitter frequency on the cutting chart. In the case of multiple transmitter

frequencies, calculate the mid-frequency and locate on cutting chart. Read desired whip

length from the chart. Cut the whip 1 1/2” longer than this length.

NOTE: Trim the antenna rod (Low and High band) from the bottom only. On the UHF antenna whip,

trim the whip from the bottom of the rod below the phasing coil.

2. Use the set screw to secure the antenna whip in the whip adaptor assembly.

3. Using the in-line wattmeter, measure forward and reflected power at the desired transmit

frequency and calculate VSWR using Table 3.

4. If VSWR is >1.5:1, then trim off 1/2” and repeat Step 3.

5. Repeat steps 3 and 4 until minimum VSWR is obtained.

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 * *

496 – 512 5 dB Heavy 150 * * RAE-4016ARL RAE-4016ATL * *

NOTE: All antenna mount kits include RG58A/U Cable and PL259 Connector, except cable option that is listed otherwise. ** For low and

Mid Band Trunk lid mount kits, order antenna only and trunk lid mounting kit (01-80356A55) separately.

PART NUMBER ANTENNA MOUNTS

01-80352A03 Roof Mount Kit, RG58A/U Cable, PL259 connector

01-80356A55 Trunk Lid Mount, RG58A/U cable, PL259 connector

01-80356A47 Magnet Mount RG58A/U cable, PL259 connector

01-80371A27 Magnet Mount RG58A/U Cable PL259 connector, low band only

Adjusting the whip length while radio is keyed may cause burns from

RF radiation.

Table 2 Spectrum Antennas (Continued)

Frequency MHz Gain Duty Max Power

Watts Antenna Only Roof Mount Kit Trunk Lid Mount Kit Magnet Mount Kit

W A R N I N G

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 inch-

lbs.

A simple table for converting the ratio of forward power and reflected power to VSWR is given below:

Example: If the forward power (Pfwd) is measured as 100 watts and the reflected power (Pref) is 3

watts, calculate Pfwd/Pref = 33.3. Since 33.3 is between 25 and 58.8 m, the chart above indicated

that the VSWR is less than 1.5 : 1.

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

10.4 1.9 : 1

7.9 2.1 : 1

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.