Flash Posted December 7, 2022 Report Posted December 7, 2022 Picked up my plane today from the avionics shop where I got an IFD540, dual GI275s, and an EDM 900. I'll start another thread about how much I like this setup (no surprise: I like it a lot), but this thread is for the one glitch: I can hear the rotating beacon, very softly, in my headset. It's so soft I can't hear it when I'm taxiing, only in-flight, and my installer couldn't hear it, possibly because he wasn't using a noise-canceling headset. (Years ago, I could sometimes hear my strobes, a problem that has since been fixed, but this time it's definitely my rotating beacon.) When we landed, the avionics installer cleaned out the grounding of the beacon. It didn't fix the problem, though. He hadn't actually done any work on the beacon for the installation, but he obviously did run a bunch of new wiring, which he told me is shielded. Any ideas on troubleshooting this? Quote
BDPetersen Posted December 7, 2022 Report Posted December 7, 2022 I had to run the ground on my strobe-type beacon directly to the battery to resolve headset noise. 2 Quote
Marc_B Posted December 7, 2022 Report Posted December 7, 2022 @Flash I opted to replace with a WAT led beacon. Pricey, but brighter and I can’t hear the RF noise anymore. Quote
Skates97 Posted December 8, 2022 Report Posted December 8, 2022 I have an LED beacon now, but when my original coffee grinder died it had a flash type beacon that produced feedback as it charged/discharged. This was installed and eliminated the noise. It was installed back in the avionics bay near the beacon. https://www.aircraftspruce.com/catalog/elpages/lsStrobeNoiseEl.php?clickkey=35795 1 Quote
Flash Posted December 8, 2022 Author Report Posted December 8, 2022 15 hours ago, Marc_B said: Flash I opted to replace with a WAT led beacon. Pricey, but brighter and I can’t hear the RF noise anymore. My installer mentioned this possibility. 1 Quote
Flash Posted December 8, 2022 Author Report Posted December 8, 2022 5 hours ago, Skates97 said: I have an LED beacon now, but when my original coffee grinder died it had a flash type beacon that produced feedback as it charged/discharged. This was installed and eliminated the noise. It was installed back in the avionics bay near the beacon. https://www.aircraftspruce.com/catalog/elpages/lsStrobeNoiseEl.php?clickkey=35795 Thanks, Richard. Looks like a cheap fix, as airplane fixes go. Quote
BDPetersen Posted December 8, 2022 Report Posted December 8, 2022 On further review of my memory, the led beacon-to-battery ground was to resolve magnetic interference. But I bet it helped for possible audio issues. 1 Quote
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