This Nautel NV15 FM transmitter developed an issue which caused the controller to generate sporadic batches of false alarms related to the RF modules, power foldback, AC power supplies, etc. It did this a couple of years ago as well. Unplugging all the connectors on the communications ribbon cable between the controller and the RF modules, blowing the dust out of the connector, reinstalling the cable, and completely power cycling the transmitter resolved the problem. No false alarms or alerts since this work was performed. I am a huge fan of Nautel's transmitters and highly recommend them.
