Operator Compartment Units; Quick-Disconnect Connector; Speaker Mounting; Hhch Hang-Up Clip - Motorola ASTRO Digital XTL 5000 Instruction Manual

5-4
5.6

Operator Compartment Units

This section describes operator compartment unit installations.
5.6.1

Quick-Disconnect Connector

NOTE: The HHCH quick-disconnect connector typically mounts under the driver's seat. This allows
the operator to disconnect it quickly and easily if so desired. Be sure adequate clearance
exists between the connector and the seat for all positions of seat adjustment.
Mount the HHCH connector bracket using the #10-16 x 3/4' self tapping screws supplied in the
HLN4831A Hardware kit. Be sure it is easily accessible. Allow for the forward and backward
movement of the seat. Use the #4-40 screws, nuts and lock washers to hold the HHCH connector to
the bracket.
5.6.2

Speaker Mounting

Refer to Section 2.6, Speaker, of the ASTRO XTL 5000 Digital Mobile Radio Installation Manual (P/N
6881096C72).
Connect both speakers to the white, two-pin connectors at the quick-disconnect end of the
3064426H01 cable. Note the speaker wires are black/red and black/violet for the Primary radio and
are green and orange for the Auxiliary radio. Be sure the plugs are fully seated, and then tie up any
surplus cable.
5.6.3

HHCH Hang-Up Clip

Refer to Section 2.7, Microphone Hang-Up Clip, of the ASTRO XTL 5000 Digital Mobile Radio
Installation Manual (P/N 6881096C72).
5.6.4

Emergency Footswitch

Refer to Chapter 3, Options and Accessories Installation, of the ASTRO XTL 5000 Digital Mobile
Radio Installation Manual (P/N 6881096C72). When installing the footswitch, discard the green and
black extension wires packaged in the footswitch kit and use instead the wiring packaged with the
3064426H01 Dual-Radio cable.
5.7

Antenna Mounting

The three most important factors in antenna placement are maximizing the distance between the two
antennas, maximizing the distance between the radios and the antennas (particularly between the
VHF antenna and the radios), and using good ground planes for the antennas.
Mount the VHF antenna on the middle of the roof of the vehicle and the UHF antenna on the middle
of the trunk. The further away from the edge and towards the middle of the roof or trunk that you can
go, the better the ground plane for the respective antenna. This mounting configuration separates
each antenna and puts the VHF antenna far away from the radios. The next best placement for the
antennas is to locate them both on top of the roof. Mount the UHF antenna near the rear of the
vehicle, about 6 inches from the edge of the roof.
October 27, 2004
Dual-Radio Installation: Operator Compartment Units
9964416H03-O