Chapter 5 Performance Checks
This chapter covers performance checks used to ensure that the ASTRO APX 3000 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 Figure 5-1.
Figure 5-1. Performance Checks Test Setup
BNC
NOT USED
AUDIO GENERATOR
SINAD METER
AC VOLTMETER
TX
RX
30 dB PAD
30 dB PAD
RF GENERATOR
SYSTEM ANALYZER
OR COUNTER
WATTMETER
BATTERY
ADAPTER
66012031001
TRANSMIT
RECEIVE
POWER
SUPPLY
RADIO
PROGRAM/TEST CABLE
PMKN4013_
AUDIO IN
SET TO APPROX. 8mV FOR Tx
MEASURE 3.74Vrms FOR Rx
SMA-BNC
5880384G68
TEST SET
RLN4460_
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