texasclouds
En-Route
Several flights ago I began getting occasional popping sounds from my intercom. Last flight there were constant popping noises that blocks conversation between headsets. I had to turn off the intercom, and the radio transmissions were fine.
I tried it several times throughout a one hour flight and couldn’t find a pattern. Sometimes the intercom worked properly then the popping would return. Engine power settings didn’t seem to affect the issue, nor did different volume/squelch settings. Low volume setting did reduce the sound. I also wiggled the wires that attach to the circuit breaker.
Any ideas? I’m planning to call Sig when they open later today. I wonder if it is a failing unit or just a ground issue.
I tried it several times throughout a one hour flight and couldn’t find a pattern. Sometimes the intercom worked properly then the popping would return. Engine power settings didn’t seem to affect the issue, nor did different volume/squelch settings. Low volume setting did reduce the sound. I also wiggled the wires that attach to the circuit breaker.
Any ideas? I’m planning to call Sig when they open later today. I wonder if it is a failing unit or just a ground issue.