Chapter 6 Radio Alignment Procedures; Test Setup; Figure 6-1. Radio Alignment Test Setup - Motorola Astro XTS 4000 Service Manual

Chapter 6 Radio Alignment Procedures

This chapter describes both receiver and transmitter radio alignment procedures.
6.1

Test Setup

A personal computer (PC) and tuner software are required to align the radio. Refer to the applicable
manual for installation and setup procedures for the software. To perform the alignment procedures,
the radio must be connected to the PC and to a universal test set. The radio alignment test setup is
shown in Figure
b
XTS4000
Radio
COMPUTER
6-1.
Battery Eliminator with
RF connector NNTN7152_
SMA to BNC
RF Adaptor

Figure 6-1. Radio Alignment Test Setup

These radio alignment procedures should only be attempted by qualified
service personnel. Failure to perform alignment procedures properly may
result in seriously degraded radio or system performance.
TRANSMIT
BNC
RECEIVE
Set to approx. 450mV for Tx
TEST SET
RLN-4460
RS232 XTS4000 Program/
Test Cable NKN1027_
or
USB XTS4000 Program/
Test Cable NKN1029_
SYSTEM ANALYZER
30 dB PAD
OR COUNTER
30 dB PAD
WATTMETER
RF GENERATOR
AUDIO IN TX
AUDIO GENERATOR
RX
SINAD METER
AC VOLTMETER
Measure 80mV for Tx