Long path with the duct ending just past Oklahoma??
73s John AA5JG
--- On Tue, 9/1/09, Eugene Zimmerman <ezimmerm@erols.com> wrote:
> From: Eugene Zimmerman <ezimmerm@erols.com>
> Subject: [VHFcontesting] Propagation gurus wanted
> To: "'VHF Contesting'" <vhfcontesting@contesting.com>
> Date: Tuesday, September 1, 2009, 3:00 PM
> During the last week's big tropo
> opening Bill WA0KBZ in EM48 reported
> hearing strong clear signals from Oklahoma off the back of
> his beam while
> pointed northeast into the duct. Surprisingly when he
> turned his antenna to
> work them, the OK signals disappeared. This is a
> characteristic of
> backscatter but there was no ionospheric layer in play to
> produce any
> backscatter. Has anyone encountered this type of strong
> clear signal off the
> back of his antenna during a tropo opening? Does anyone
> have any idea what
> type of propagation might be in play here?"
>
> I mention this in case there is a decent tropo opening in
> the September
> contest [don't we hope!] If so you might not want to turn
> your antenna if
> you hear someone off the back - the signal just might
> disappear.
>
> 73 Gene W3ZZ
> World Above 50 MHz
> FM19jd MD
> 50 => 10 GHz
> Grid Pirates Contest Group K8GP
> Member, CQWW Contest Advisory Group
>
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