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Appendix H: Viavi CX300 Tests
MAINTENANCE GUIDE | MT-4E ANALOG & P25 DIGITAL RADIO SYSTEMS
RF Power:
Monitor the RF power output of the transmitter as shown in Figure H-19. In the Power Level area of the Service
section on the RSS, click on the “Key Tx” button and adjust the Transmitter Output Power adjustment as shown in
Figure H-20 to change the RF output power. Transmitter RF power output will vary slightly with the +10 - +17 Vdc
input.
Figure H-20: RSS Transmitter Power
Level Adjustment
Enter the RF Power Output reading on the MT-4E Test Sheet.
Connect the transmitter to the power amplifier (if used) and measure the RF power output of the amplifier. The
Zetron 30 Watt Amplifier’s RF power output can be changed by adjusting the transmitter (exciter) RF power
output. Do not exceed power amplifi er input levels. Higher power amplifi ers typically have a fixed RF power
input level and RF power output level.
Enter the Amplifier RF Power Output reading on the MT-4E Test Sheet.
