Tom,
I've heard this type of phenomena a couple of times from N2RM on 15m.
I don't know what caused the "reflection" of my signal back, but the time I
heard it the most at N2RM - was maybe 10 years ago or so. It was so clear, I
also thought it was someone playing my CQ message back to me. Then I started
saying different things, stopping short, and all of those sounds came back very
clearly too. I had others in the shack listen to it to confirm what I was
hearing.
It was an emotional experience to hear this unusual phenomena.
As I recall, this occured when the conditions were very, very good. It also
was late in the afternoon, when Europe was in darkness, and fairly regularly,
we would continue to work Europeans nonetheless with N2RM's 4x4x4x4 array from
his excellent location.
I attributed it to having low noise, lots of gain in the antenna system, and
that without those benefits, I speculated we probably would not have heard it.
Certainly curious for sure.
73,
Bob N5NJ
> ------------Original Message------------
> From: TOMK5RC@aol.com
> To: cq-contest@contesting.com
> Date: Mon, Jan-12-2004 10:25 AM
> Subject: [CQ-Contest] 10M NAQP Weirdness
>
> AD6E and I both experienced a very weird phenomena during the first hour of
> CW NAQP on 10M. For a number of QSO's, the contest exchange just sent came
> back
> as a very loud received signal, most of the time covering up the station
> being worked. Not only was there CW, but very loud background noise, sounding
> like
> PLL phase noise.
>
> I thought it was someone at the end of my driveway with an old Kenwood radio
> sending the exchange I just sent. In retrospect the CW and the noise may have
> been from someone making a tape recording (or .wav recording) and playing it
> back.
>
> Anyone else have this problem?
>
> Tom, K5RC (W7RN)
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