Re: [amsat-bb] more tests

[guy lemke <guy@xxxxxxxxxxxx>]

I'm sorry that I missed that info...Here it is   CN80


Rolf Niefind wrote:

> if you give your locator or grid square this would be very heplful
>
>  Rolf DK2ZF JO43VH
> ***
> guy lemke schrieb:
> > Francesco,
> > I observed similar signals last night but they were in the 2401.350 to
> >  2401.395
> > part of the band.  I could not hear the beacon then all the sudden it was
> >  their and
> > very loud.. At 20,000 Km's I had 9 over on my S-meter ( FT-736r).
> >
> > After acquiring the beacon I could only hear one station out of japan around
> > 2401.375 and two stations using CW around 2401.360. I also heard one station
> >  using
> > voice (english) for a very short period of time calling CQ and then
> >  nothing... for
> > the rest of the pass, also some very deep fades for most of the pass.
> >
> > I have a ADIC-3733 (3Ft dish) with all the K5GNA mods done to it and it works
> >  very
> > well.. a Yaesu FT-736r for the radio.  My antennas are up about 35 feet with
> >  AZ &
> > EL control (you can see this at www.hamsats.org   under info)..
> >
> > I hope this helps some..
> >
> >
> >    guy lemke  kd6mtu
> >
> > Francesco Messineo wrote:
> >
> > > Hi all,
> > > here're the results of new tests I've done trying to hear AO-40.
> > > My station is in JN53EQ, now I'm quite sure I have good tracking software
> > > as it gives AZ and EL figures which reasonably agree with those sent to
> > > me by two other hams. On Aug 1, between 20.30 and 21.30 UTC I wasn't
> > > able to copy the beacon around the frequency where it's supposed to be
> > > (yes, plus or minus the doppler shift). I used the 34-turn helix and
> > > parabolic's downconverter.
> > > Then I started to point around the sky my antenna and tune around my
> > > radio. First of all I noticed that the noise floor of the whole
> > > system is S3-S4 from 144-146 MHz then it rapidly decrease to S1 outside
> > > this range (tested from 143 to 149 MHz).
> > > I found "strange" signals  around 147.500 MHz to 148.500 MHz, which
> > > should be around 2403.500 to 2404.500 according to my converter
> >  specifications.
> > > The signals appear to coming from AZ= 240 to 270 (approx) and EL=30 to 40
> > > and have been observed for 15-20 minutes around 21.30 UTC (then I went
> > > QRT). What I heard is signals that sound like SSTV on 2407.968 with S3 to S4
> > > strength (S1 is the nois floor here), similar signal, around S2, on 2408.055
> > > also I found a strong (S9) carrier (seems not modulated) around 2408.011.
> > > For the short period of my observation I couldn't hear any doppler shift.
> > >
> > > Now the question is: I'm hearing something that is well known? Or it's
> > > a product of an image frequency? Can I assume that the LO frequency of
> > > my dowconverter is reasonably precise (given that they say it should
> > > convert 2400 MHz frequency to 144 MHz)? How can I test that the LO freq
> > > is what it should be?
> > > Has anyone a sample wav file of the AO-40 beacon, just to hear how it should
> > > sound like?
> > >
> > > Thanks and best regards.
> > >
> > > --
> > >
> > > _ _ _ ___   ___ _ ___ ___   ___ ___ _ _ _   _ _ _ ___ ___   ___ _ _   _
> > >
> > > Francesco Messineo      iz5dwf@amsat.org
> > > _ _   ___ ___ _ _   _ _ _ _ _   ___ _ _   _ ___ ___   _ _ ___ _
> > >
> > > ----
> > > Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
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> >
> > ----
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