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Re: AO-27 Pass



Hi David,

I may have picked up late on this but I think you were listening on the
wrong frequency.  AO-27's downlink is 435.795 + or - doppler.  You almost
always will hear fm voice activity from the time the bird becomes visible to
the north until it shuts off about 15 minutes later.  I don't have any info
on any beacon or other signal on 436.7125 but that doesn't mean it isn't
there.

Malcolm Preston, NP2L

----- Original Message -----
From: David M. Tipton, PhD <tiptond@psi.com>
To: <amsat-bb@AMSAT.Org>
Sent: Monday, February 21, 2000 12:14 AM
Subject: [amsat-bb] AO-27 Pass


> Since I'm not all that familiar with what I'm supposed to be hearing, I'll
> tell you what I thought I heard.
>
> I was listening to 436.7125 around 04:10UTC (Minutes ago) and could have
> sworn I heard a CW Beacon or Identifier coming in..  Being as I'm in
> Northern Virginia and exceptionally close to W3IWI's home, I haven't
> bothered to plug in my exact coordinates...  Anyway, according to the
> software, AO27 should have been over head and that should have been a
> frequency to hear stuff on.  Am I nuts and been listening to static too
> long, or did I actually hear something?  Would there have been CW keyed
into
> an FM signal?
>
> Dave, N8KXA
>
> (Sitting here with fingers crossed.)
>
> ----
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