Performance Checks; Introduction To This Section; Setup; Figure 4. Radio Alignment Test Setup - Motorola ASTRO XTSTM 2500 Basic Service Manual

Performance Checks

Introduction to
This Section

Setup

ATTERY
RADIO
ELIMINATOR
0180305G54
COMPUTER
This section covers performance checks used to verify that the 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 equipment must be maintained in compliance with the
manufacturer's recommended calibration schedule. Checks should be performed
if radio performance degradation is suspected.
Supply voltage can be connected from the battery eliminator. The equipment
required for alignment procedures is connected as shown in the "Radio Alignment
Test Setup" diagram (Figure 4).
SMA- NC
58-80348 33
PROGRAM/TEST CA LE
RKN4106

Figure 4. Radio Alignment Test Setup

30 d PAD
TRANSMIT
30 d PAD
NC
RF GENERATOR
RECEIVE
SET TO APPROX. 450mV FOR Tx
AUDIO IN
TEST SET
RLN-4460
MEASURE 80mV FOR Tx
5
SYSTEM ANALYZER
OR COUNTER
WATTMETER
TX
AUDIO GENERATOR
RX
SINAD METER
AC VOLTMETER
13