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GNS430 COM issues

FloridaMan

By FloridaMan
in General Mooney Talk

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FloridaMan Grand Master

FloridaMan

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Before I go and send this off, I'd like to make sure there's not something stupid that I'm missing. When my 430 is on, I hear a faint ticking sound in my headset (RX is not illuminated except when receiving). The ticking sound remains even with the alternator field pulled and the rest of the radio stack and transponder turned off. I can receive just fine. Tower says my transmissions are unreadable. Reracking a few times seems to sometimes fix it. I borrowed a 430W to try and I was "loud and clear" on that radio and no ticking sound in the headset. Swapped back to my 430W and the problem returned. It sounds like I need to drop the $1200 for the flat rate service, but wanted to make sure there wasn't something else I should try. 

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