Chapter 5 Performance Checks; Test Equipment Setup; Figure 5-1. Performance Checks Test Setup - Motorola Astro XTS 4000 Service Manual

Chapter 5 Performance Checks

This chapter covers performance checks used to ensure that the ASTRO XTS 4000 radio meets
published specifications. The recommended test equipment listed in the previous section
approaches the accuracy of the manufacturing equipment, with a few exceptions. Accuracy of the
test equipment must be maintained in compliance with the manufacturer's recommended calibration
schedule. Checks should be performed if radio performance degradation is suspected.
5.1

Test Equipment Setup

Supply voltage can be connected from the battery eliminator. The equipment required for the
performance checks is connected as shown in
Battery Eliminator with
RF connector NNTN7152_
XTS4000
RF Adaptor
Radio
COMPUTER
SMA to BNC
Figure 5–1. Performance Checks Test Setup
Figure 5–1.
TRANSMIT
BNC
RECEIVE
TEST SET
RLN-4460
RS232 XTS4000 Program/
Test Cable NKN1027_
or
USB XTS4000 Program/
Test Cable NKN1029_
SYSTEM ANALYZER
30 dB PAD
30 dB PAD
RF GENERATOR
Set to approx. 450mV for Tx
AUDIO IN
TX
AUDIO GENERATOR
RX
AC VOLTMETER
Measure 80mV for Tx
OR COUNTER
WATTMETER
SINAD METER