What causes the whining noise on the radio?
When I hear some other pilots transmitting, there is a very distinctive whining noise on the radio. I don't believe it is environmental noise, because I have flown the same aircraft types and the flight deck doesn't sound like that. Any ideas what's causing it? You must have heard it yourselves.
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Poorly shielded antennas and electrical leads.
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Often it is old Mad Dogs and their 400hz AC (CSD) Generators "hum"which gets picked up from the interphone system and/or headset wiring...
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Which is poorly shielded wiring, poorly routed wiring, antennas, and connectors. That problem can be alleviated with noise filters.
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Guys without a contract.........
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Thanks for the replies, folks (the serious and the funny ones). Much obliged.
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Originally Posted by Ski Bird
(Post 2425482)
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