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Old 19th Aug 2019, 7:49 pm   #5
Mikey405
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Join Date: Jul 2006
Location: Solihull, West Midlands and Beaford, Devon
Posts: 1,626
Default Re: Spitfire Am Transmitter Hum (Buzz)

Hi all again.

I think a possibility presents itself - I can run a piece of coax from the aerial socket of the Spitfire to a little distance outside the building and then hang the aerial from a tree and it's not too hummy. The Spitfire still needs to be earthed near the device - and even then any mains leads coming anywhere near it introduce a lot of hum in the modulation. But at least I have a workaround which I am happier with then running everything outside.

I wonder why this device is so sensitive to hum relative to the SSTRAN. Hmm.

Thanks all.

Kind regards.

From Mike.
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