Installation Manual

Table Of Contents
a Press the PTT switch of the microphone and speak into the microphone.
b Verify that the display shows an audio signal.
c If the proper display is not obtained, suspect a faulty transceiver board.
8 Set the Aeroflex 3900 Series Communications System Analyzer for GEN/ MON MTR.
a Press the PTT switch of the microphone and speak loudly into the microphone to cause
maximum deviation.
The display should read:
4.60 kHz maximum for a 25 kHz system
3.68 kHz maximum for a 20 kHz system
2.30 kHz maximum for a 12.5 kHz system
b If the proper display is not obtained, suspect a faulty transceiver board.
9 Verify that all displays and measurements are correct.
The transmitter circuitry may be considered to be operating properly. This completes the
Verifying Transmitter Circuitry test procedure.
10 Remove the test equipment, restore the repeater to normal service, and (if applicable) return to
the troubleshooting flow chart to resume the troubleshooting sequence.
Figure 18: Test Equipment Setup for Verifying Transmitter Circuitry
Tx
Dummy Load
Power Meter
Microphone
(GMMN4063)
(Step 5)
T/R
MN003557A01-AF
Chapter
7: SLR 1000 Performance Check or Testing
67