User Manual

Table Of Contents
Operation RF-Orchestra!™ Transmitter Installation and Operation
5-24 6880493G02-C July 2000
RF-O! Power Control
The power control feature of the RF-O! transmitter performs several functions which monitor
module status and maintain maximum output power based on the status of the modules.
When the modules are operating without fault, the power control software maintains the
user-selected power per subchannel for both AM and FM output. Current implementations
allow up to 3 FM (ReFLEX/FLEX) or 2 AM (InFLEXion) subchannels to be transmitted
simultaneously. The power control software constantly adjusts various levels throughout the
RF-O! transmitter, based on the modulation type and the number of subchannels.
The power control software is responsible for power metering, wattmeter calibration, power
leveling, power set, module metering, alarm reporting, power cutback/shutdown, carrier
feedthrough nulling, power amplifier configuration control, subchannel configuration control,
and amplitude alignment.
The various communication interfaces on the RF-O! transmitter are shown in Figure 5-14.