Chapter 3 Transceiver Performance Testing
3.1 General
These radios meet published specifications through their manufacturing process by utilizing high-
accuracy laboratory-quality test equipment. The recommended field service equipment approaches
the accuracy of the manufacturing equipment with few exceptions. This accuracy must be
maintained in compliance with the manufacturer’s recommended calibration schedule.
Although these radios function in digital and analog modes, all testing is done in analog mode.
3.2 Setup
Supply voltage is provided using a 7.5 VDC power supply. The equipment required for alignment
procedures is connected as shown in the Radio Tuning Equipment Setup Diagram, Figure 4-2.
Initial equipment control settings should be as indicated in Table 3-1. The remaining tables in this
chapter contain the following related technical data:
Do NOT use any form of connector, e.g. wires, crocodile
clips, and probes, to supply voltage to the radio, other
than the Motorola approved battery eliminator.
Table Number Title
3-2 Test Environments
3-3 Test Frequencies
3-4 Transmitter Performance Checks
3-5 Receiver Performance Checks
Table 3-1. Initial Equipment Control Settings
Service Monitor Power Supply Test Set
Monitor Mode: Power Monitor Voltage: 7.5Vdc Speaker set: A
RF Attn: -70 DC on/standby:
Standby
Speaker/load:
Speaker
AM, CW, FM: FM Volt Range: 10V PTT: OFF
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