N178EZ
New Member
I have an intermittent bug where I get a very loud buzz/tone in the headset under some conditions. I seems to be higher power settings (higher buss volts while charging?). It will go away if I turn the alarm tone pot down far enough. Unfortunately that also mutes the alarm tones. It is tied into a PM3000 intercom aux input. I am a bit baffled because it works flawlessly 50% of the time (EMS alarms work, etc.) The buzz is different from the standard alarm tones that sound for say low oil pressure, etc. There isn't another tone for another warning that I am missing somehow is there?