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Appendix H: Viavi CX300 Tests
MAINTENANCE GUIDE | MT-4E ANALOG & P25 DIGITAL RADIO SYSTEMS
Ensure that the receiver and transmitter are connected to the repeater controller via the RJ45 cables on the
front panel. In some systems, the receiver and transmitter may be connected directly together using the RJ45
cables�
Figure H-32: System Analog Duplex Measurement
Distortion:
The distortion meter will read demodulated audio and give you a complete repeater system distortion reading.
The high limit is set to 4.0 %.
Enter the System Distortion reading on the MT-4E Test Sheet.
Demodulated Audio Frequency:
The AF Counter will give you the frequency of the demodulated audio. The demodulated audio should read
the same as the modulated input. The low and high limits are set for 995 Hz and 1005 Hz.
