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Motorola, The Stylized M Logo, and Intelligence Everywhere are
registered trademarks of Motorola, Inc.

6880360B49-A

Copyright © 2000, 2002 Motorola, Inc. All Rights Reserved.

*6880360B49*

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 

68P81095C99) to ensure compliance with RF energy 

exposure limits.

Introduction

The antennas described in this section are supplied
with an appropriate antenna whip, coaxial cable and
connector, and mounting hardware. Mounting hard-
ware and installation is described for permanent vehi-
cle type mounting.

Refer to Table 1 for model identification. Figures 1
through 3 identify the component parts of the antenna.
Refer to the recommendations for antenna location
paragraph at the end of this instruction section for
safety information.

Installation

Mounting Hardware Installation – Roof 
Mount

General

The installation procedure which follows is for a typi-
cal passenger car. The procedure may vary slightly
with the type of vehicle on which the antenna is to be
installed. Generally speaking, however, the procedures
outlined are of a universal nature.

NOTE

The antenna should be mounted on a flat
metal roof of .020 to .040 inch thickness.

1.

First, select a location for the antenna as near
the center of the roof as possible.

2.

The headlining may be probed with the fin-
gers to make sure that all points of obstruction
are avoided

.

Installation Procedure Single Wall Construction

1.

Locate the center of the roof by careful mea-
surement, remove the headlining as necessary,

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.

Table 1.

Model Complement

Antenna Model

Frequency Range (MHz)

Roof Mount Models

RAD4012ARB
RAD4020ARB

HKAD4001A

RAE4022ARB
RAE4034ARB

RAF4021ARB

150.8-162
162-174
216-225
403-430
450-470
806-870

!

C a u t i o n

Figure 1.

Whip Parts Identification

ROD WITH 

CHROME NUT 

(ROD)

ANTENNA ONLY

MOTOROLA 

PART NO.

ANTENNA 

MODEL NO.

FREQ. RANGE 

(MHz)

01-80352A07
01-80352A08
01-80305K05
01-80352A11
01-80352A90

01-83938B03
01-83938B04
01-83938B12
01-83938B06
01-83938B11

RAD4012ARB
RAD4020ARB
HKAD4001A
RAE4034ARB
RAF4021ARB

150.8-162
162-174
216-225
450-470
806-870

Mobile 1/4-Wave Antennas

Roof Mount

Summary of Contents for RAD4020ARB

Page 1: ...for a typi cal passenger car The procedure may vary slightly with the type of vehicle on which the antenna is to be installed Generally speaking however the procedures outlined are of a universal nature NOTE The antenna should be mounted on a flat metal roof of 020 to 040 inch thickness 1 First select a location for the antenna as near the center of the roof as possible 2 The headlining may be pro...

Page 2: ...TALLATION KIT 150 8 174 MHz 216 225 MHz 403 470 MHz AND 806 870 MHz RANGE MOTOROLA PART NO DESCRIPTION 01 84988K01 BUSHING ASSEMBLY 11 80369B40 SILICONE GREASE 14 83798C01 CAP INSULATOR 28 84606M01 MINI UHF CONNECTOR 30 80336A10 14 FEET RG58A U COAX 42 83940B01 O RING 43 83881B01 LOCKING NUT Figure 3 Cross Section of Assembled Antenna ...

Page 3: ...ole 6 Refer to Figure 7 Hold the antenna bushing assembly in place with the index finger and thread the locking nut onto it as shown 7 Pull up on the bushing assembly as illustrated in Figure 8 and make sure it is centered and seated both shoulders inside the drilled hole and that the O ring is in the groove in the locking nut As furnished the O ring has been placed in the locking nut groove and i...

Page 4: ...oceed as follows 1 Locate the center of the roof and make sure the area beneath this point is clear to allow passage of a drill 2 With a 3 4 inch diameter hole cutting saw carefully cut a 3 4 inch hole from the top of the roof through both thicknesses of metal Clean the metal in a neat circle around the hole to assure a good contact between the roof metal and the locking nut 3 Remove any burrs and...

Page 5: ... front end and dielectric bottoms inside body Refer to Figure 13 4 Crimp center contact using proper crimp section of tool Refer to Figure 12 marked CENTER CONTACT 5 Push collar forward onto plug assembly Fit cable braid over the support sleeve of the con nector Refer to Figure 13 6 Push ferrule over braid until flange butts against connector body Refer to Figure 13 Using the correct crimp area of...

Page 6: ...tion 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 in addition to changing the whip assembly Motorola Recommendations for Mobile Antenna Location Recommended mobile antenna installations are lim ited to metal body vehicles at the center of the roof and center of the trunk deck locations Refer to Table 2 The ant...

Page 7: ...runk and hood lids exhaust pipes etc in close proximity to the antenna can cause severe receiver inter ference 5 If the vehicle is equipped with an electronic anti lock braking system ABS mount the antenna at the center of the roof or trunk lid and do not route the antenna cable near the ABS Modulator Box Mount the radio as far away from the Modulator Box as physically possible This minimizes radi...

Page 8: ...8 6880360B49 A July 2002 Mobile 1 4 Wave Antennas Motorola Recommendations for Mobile Antenna Location ...

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