Chapter 3
TRANSCEIVER PERFORMANCE TESTING
1.0 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.
2.0 Setup
Supply voltage can be connected from the battery eliminator. The equipment required for alignment
procedures is connected as shown in the Radio Tuning Setup diagram (Chapter 4, Figure 4-1).
Initial equipment control settings should be as indicated in the following table and should hold for all
alignment procedures.
Table 3-1 Initial Equipment Control Settings
Service Monitor Test Set Power Supply
Monitor Mode: Power Monitor Spkr set: A Voltage: 7.5Vdc
RF Attenuation: -70 Spkr/load:
Speaker
DC on/standby:
Standby
AM, CW, FM: FM PTT: OFF Volt Range: 10V
Oscilloscope Source: Mod
Oscilloscope Horiz: 10mSec/Div
Oscilloscope Vert: 2.5kHz/Div
Oscilloscope Trig: Auto
Monitor Image: Hi
Monitor BW: Nar
Monitor Squelch: mid CW
Monitor Vol: 1/4 CW
Current: 2.5A
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