[CW] Russian Woodpecker Story

[k3miy at csonline.net]

David

I think this is something different than the woodpecker. If I remember
correctly, the woodpecker was an over the horizon radar, used for propagation
research. Someone built and marketed a device that would cancel the tones
(pulses actually) by adjusting pulse width and switching the phase to cancel
the noise. I don't know how effective this gadget was.

Ron
K3MIY





Quoting "D.J.J. Ring, Jr." <n1ea at arrl.net>:

> http://www.wired.com/magazine/2011/09/ff_uvb76/
> 
> I'm sure most you had to deal with this maddening noise on HF when it was
> active.
> 
> A very interesting article.
> 
> David J. Ring, Jr., N1EA <http://www.qsl.net/n1ea/>
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> A1-OP <http://www.arrl.org/a-1-op>, ex-FOC 1271
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>  Chat Skype: djringjr MSN: djringjr at msn.com AIM: N1EA icq: 27380609
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> 




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