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Re: Making Progress at KM0T - A040



Congratulation Mike!
Hearing a beacon indicating your are not far away from getting to work
AO-40.
Your experience more or less reminds me of what was happening to me a month
ago.
The tips is as follows:
1. Satellite distance: If you see the Height (not Range) is more than
57.000km, do not hope to hear anybody.
2. Squint angle: If it is more than 30, you can work (or somebody is
possible up there) but with lots of QSB so only bigger station can survive.
(Remember to update also the alon/alat info on Nova to get the proper
reading. For now it is 30/0).
3. As you already know, keep in touch with the schedule (MA for MB and
passband).
4. Check the local time, and also the other people time (It is normal for
the first time runner to work 24 hours on AO-40, but for the rest, they only
work at the most convenient time, hi, hi).

Hope this experience help, and see you on the bird soon!

Reinhard - YB0KTQ

----- Original Message -----
From: "Mike A. King - KM0T" <scsueepe@mtcnet.net>
To: <amsat-bb@AMSAT.Org>
Sent: Tuesday, August 20, 2002 8:15 PM
Subject: [amsat-bb] Making Progress at KM0T - A040


> Hi all,
>
> First I would like to thank all the folks who got my first post a few
weeks
> ago on uplink antenna questions, I do appreciate all the info.  This has
> been a very informative list.
>
> The last week or so has been spent playing with NOVA and Uni-Trac with a
> Yaesu G-5500 rotor.  The antenna I have is a BBQ dish - about 3' vertical
> axis and a SSB UEK-3000 downconvter.  The feed on the dish says "Andrew" -
> that hardline company, I guess I did not know that they made antennas.
All
> the stuff is used and was to be in working order.
>
> Anyway, most of the time has been spent getting the NOVA and Uni-Trac
> software to talk to one another.  Also figuring out the config files, etc.
>
> Well all appeared to be tacking except there was no AO-40 around.  So I
set
> my alarm for last night and caught the bird around 0645 UTC.  I found the
> Middle Beacon, real strong, adjusted the antenna back and forth and and in
> elevation to verify - sure enough it was a signal from space.  It was very
> strong - about S-5 with a bit of QSB.
>
> Now, I know this may not be a big deal, but its the first time I have
every
> heard a sat!
>
> Then the beacon seemed to just cut off about 0654 - which coorelated with
a
> "MA30"?  I looked up on the Web and found that this was a scheduled turn
off
> of the S2 beacon.  More proof that I actually heard AO-40?
>
> I also at the same time tuned the band, no ham signals found.  When
> investigating on the beacon turn off- I notice the transponder schedule.
No
> wonder it was quiet.  It said it would turn on at like MA-76.
>
> So I hit the sack for a bit and got up around 4 am local - nothing heard
at
> all - no beacon or hams on the bird.  Went outside, did not seem to be
> pointed into anything, a mystry?  I think I recall this was around MA-90
but
> not sure.
>
> Then got on to listen this ealy am and heard the beacon again, but no ham
> signals, this was around MA-97 to MA-103.  The beam heading was 7 degrees,
> pretty much on the horizon and  NOVA ranged AO-40 at 62278 km.  I still
did
> not hear any ham stations or any other beacons other than the middle
beacon.
> This beacon was much weaker than what I heard around 0645 UTC.
>
> So the question is, It appears to be working, but no hams to be heard?  Is
> the middle beacon that much stronger than anyone else?  Or could it be
there
> really was nobody on?  (I doubt it).   Or is the fact that I heard
something
> at all a good thing.  I guess I dont know what else to do with the RX
> system.  Perhaps local clutter, just not sure.  Not sure what else I need
to
> do as far as improving the downlink except a better or bigger dish?
>
> Any comments appreciated.
>
> Also - is Uni-Trac a bit difficult to get running?  I found it to be a bit
> taxing.  Or am I the only one?
>
> 73
>
> Mike - KM0T en13vc
> www.qsl.net/km0t
>
>
>
> ----
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