Chapter 4
PERFORMANCE TESTING
1.0
Introduction
The radios have been prepared to meet published specifications through their manufacturing
process with the use of laboratory-quality test equipment of the highest accuracy. The
recommended field service equipment approaches the accuracy of the manufacturing equipment
with a few exceptions.
The accuracy of the equipment must be maintained in compliance with the manufacturer’s
recommended calibration schedule.
The receiver and transmitter performance tests are contained in Tables 4-5 and 4-6 respectively.
Refer to Chapter 5 for the test equipment set up. Note that all test measurements are taken at 25°C.
2.0
Setup
The supply voltage can be connected from the battery eliminator. The equipment required for
alignment procedures is connected as shown in the Radio Tuning Test Setup diagram shown in
Chapter 5.
Initial equipment control settings should be as indicated in the following table and should hold for all
alignment procedures except as noted in Table 4-1.
Table 4-1
Initial Equipment Control Settings
Service Monitor
Test Set
Power Supply
Monitor Mode: Power Monitor
Spkr set: A
Voltage: 7.5Vdc
RF Attn: -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
