[amsat-bb] Re: 10mtr and Galileo

[John B. Stephensen]

What bothered people is the fact that we need high power L-band uplinks and
the statement in the report that "there is the potential for most amateur 23
cm transmissions to interfere with Galileo unless the Galileo receivers are
designed and built to withstand it".

73,

John
KD6OZH

----- Original Message ----- 
From: <jules at g0nzo.co.uk>
To: <amsat-bb at amsat.org>
Sent: Sunday, September 10, 2006 23:37 UTC
Subject: [amsat-bb] Re: 10mtr and Galileo


> Just for the record, the first Galileo satellite has already been
launched:
> http://news.bbc.co.uk/2/hi/science/nature/4566264.stm
>
> Also there was a study made by the UK microwave group (the body
representing
> UK amateur interests above 1GHz), which makes interesting reading. It
> suggests that the signals from Galileo would have little impact on
> terrestrial/EME 23cms opperation. Obviously the conclusions woule require
a
> little re-interpretation, with respect to satellite based reception. But
as
> Galileo transmissions will presumably be aimed at the earth, so that any
> amatuer satellite will receive signals greater than that on earth, for a
> minute part of it's orbit, I would think that the conclusions drawn would
> still be valid. It's an interesting read:
> http://www.microwavers.org/papers/iaru/C5-13_Galileo.pdf
>
> Jules
> G0NZO
>
>
> >Speaking of allocations being taken away, I just can't fathom the AMSAT
> >decision to drop L-Band up because of the "Galileo Affair." Now that's a
> >decision based on "crystal ball engineering" and not fact. I've even read
> >that if Galileo ever was launched - and that appears in the latest press
to
> >be questionable" the US "would has threatened to shoot them down!"
> >
> >Regards...Bill - N6GHz
>
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