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Re: AO-27 & SO-50



Hi all,
The downlink frequency for SO-50 sometimes change by
5 kHz.
Right now I have recorded it at 436.795 MHz - but a week ago
it was more like 436.800 MHz.
You have to listen carefully to find it - and also a control station
has to turn it on.
73 OZ1MY
Ib
----- Original Message ----- 
From: "Emily Clarke" <w0eec@AMSAT.Org>
To: <mike@hatzakis.net>; "Emily Clarke" <w0eec@AMSAT.Org>;
<amsat-bb@AMSAT.Org>
Sent: Sunday, November 16, 2003 10:26 PM
Subject: RE: [amsat-bb] AO-27 & SO-50


> Hi Mike,
>
> SO-50 has a very small transmitter (140mw) so you need a very sensitive
> receiver and beam antenna to hear it.  I think most people working SO-50
> have most mounted preamps, but you can work it with an Arrow antenna and
an
> HT.  N5AFV (http://www.qsl.net/n5afv/) is very good at it and works it
with
> an AL-800 whip.
>
> As far as the frequency, I find it at about 436.8080 when the satellite
> first comes over the horizon, and it goes down to 436.784 at the end of
the
> pass.  This would indicate the center frequency is somewhere around
> 436.796, though VE6EGN indicates that he thinks it's closer to 436.798.
So
> you really have to tune around to find it.
>
> The uplink is 145.850.  I find it helps to slightly tune your transmitter
> for Doppler (about 1khz below when approaching, 1khz above when departing)
> but the FM capture effect is OK for most of the pass.
>
> Hope this helps,
>
> Emily
>
> At 01:14 PM 11/16/2003 -0800, mike@hatzakis.net wrote:
> >This is a great summary, thank you..!   I just tried SO-50 and I have
been
> >listening on 436.800, but read something else that says 436.795 and just
> >barely heard it there on FM.  Should I be vertically polarized for it?
Is
> >the uplink still 145.850   (before doppler correction).  I'm getting
there,
> >albeit slow.
> >
> >Michael
>
>
> W0EEC - CM87tm
> ARRL - AMSAT - MSARC - ARCA - Project OSCAR
> AMSAT Area Coordinator - San Francisco Bay Area
> http://www.projectoscar.net
> http://www.emilyshouse.com/W0EEC
> http://www.experthams.net/ao7
>
>
> ----
> Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
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>

----
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