Re: [amsat-bb] more tests

[guy lemke <guy@xxxxxxxxxxxx>]

Thanks for the info...Have been working AO-40 this evening and other then some
deep fades it has been very quite as far as intruders are concerned....

I am waiting out the rudek testing right now ...

Colin Hurst wrote:

> Guy,
> When AO40 rises after a perigee due North of Australia and the
> transponder comes on at MA10 the downlink is full of intruders.
> These signals are virtually from one end of the passband to the other.
> As range increases they start to drop off, however I suspect that the
> two signals you are hearing are a couple of FM intruders that hang
> in there for some considerable period of time. I would suggest that
> they are two strong to be image frequencies.
> When in close they are noise free. Some are voice modulated and
> others appear to be communication links (the stronger ones).
> If I were a betting man (I prefer to spend my funds on AR)
> I would wager that they emanate from the islands due North of
> Australia. Perhaps I should enlist the aid of the children in the area
> (mine have flown the nest) who learn the languages of our
> neighbours to our immediate north.  This is my first experience with
> 70 cm  inrtuders, but we are very familiar with the fact that uplinking
> on 145 Megs to the digitals to our north is nigh on impossible until
> those birds pass out of the offending footprint.
> Does confirm one thing, AO40 has very good ears on 70 cms.
> Regards,
> Colin VK5HI
>
> ----- Original Message -----
> From: "guy lemke" <guy@com-pair.net>
> To: "Francesco Messineo" <iz5dwf@AMSAT.Org>
> Cc: <amsat-bb@AMSAT.Org>
> Sent: Thursday, August 02, 2001 4:59 PM
> Subject: Re: [amsat-bb] more tests
>
> > 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
> >

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