[Elecraft] heterodyne tones

[Ken Roberson]

David,

I have found many devices in the shack that cause Birdies
1 - My new Laser printer
2 - The video camera on my EME tower.
3 - computer and computer monitors.

Try turning everything off in your shack and see if that helps.

73 HNY Ken K5DNL

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--- On Fri, 1/1/10, David Kowalewski <djkowalewski at me.com> wrote:

> From: David Kowalewski <djkowalewski at me.com>
> Subject: [Elecraft] heterodyne tones
> To: elecraft at mailman.qth.net
> Date: Friday, January 1, 2010, 10:00 AM
> Not sure if this is normal or not,
> but I hear what seems to be a heterodyne tone on mostly 20
> and 15 meters, 14.000, 14.030, 14.091, also 21.022, 21.
> 053..(just a few freq examples) usually at S-9 levels. Can
> anyone explain, and should I be concerned?
> Dave K.
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