[CQ-Contest] remember this? Russian Woodpecker

Michael Tope W4EF at dellroy.com
Sun Jun 10 21:40:25 EDT 2007

----- Original Message ----- 
From: "Peter Voelpel" <df3kv at t-online.de>
To: <cq-contest at contesting.com>
Sent: Sunday, June 10, 2007 3:53 PM
Subject: Re: [CQ-Contest] remember this? Russian Woodpecker

> Very unlikely, since the cw signal is not changing phase like a flying
> object it will be supressed in the radar receiver.
> 73
> Peter
> -----Original Message-----
> From: cq-contest-bounces at contesting.com
> [mailto:cq-contest-bounces at contesting.com] On Behalf Of Michael Tope
> On the other hand, over the horizon backscatter from an ICBM has got to be
> pretty weak even when the radar's transmitted power is so bloody large, so
> it
> is not unreasonable to think that big yagi's with KW's pointed back at the
> receiver would be as least as loud as the backscatter from a relatively
> Small object like an ICBM.

Yes, you're probably right, Peter. The absolute signal level hitting
the receiver might be on par with the backscatter from a real target,
but the large bandwidth difference would allow for filtering out the
CW counter-jamming (my memory is fuzzy, but I seem to recall the
bandwidth of the UA Woodpecker being on order of 100 to 200 KHz

73, Mike W4EF.......................................... 

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