Ground loop hum drove me nuts for three days in Denver

Last month I was chasing a nasty hum on a G1000 install. Checked every wire twice, new shield, even swapped the audio panel. Turned out the pitot heat power wire was running parallel to the audio bus for about 14 inches. Moved it two feet and the hum vanished. Anyone else had a weird interference that was just a wire routing issue?

1 comments

1 Comment

lopez.karen22d ago

Two feet? That's insane that such a tiny move fixed a three day headache. Pitot heat wire biting you that hard is brutal, man.