RE: [amsat-bb] U-Band and L-Band systems used in recent tests

[Alberto Iglesias Darriba <ea1dld@xxxxxxxx>]

Ok Domenico. Thanks a lot for your information. 73.

Al I. Darriba. XE1RDV - EA1DLD.

----- Original Message -----
From: i8cvs <domenico.i8cvs@tin.it>
To: Alberto Iglesias Darriba <ea1dld@arrl.net>; Charles Suckling
<charles.suckling@ntlworld.com>
Cc: AMSAT-BB <amsat-bb@AMSAT.Org>
Sent: Sunday, April 07, 2002 5:18 AM
Subject: R: [amsat-bb] U-Band and L-Band systems used in recent tests


> Hi Alberto and Charles,
>
> During the experiment the maximum power used  by i8CVS on U-band
> to get the desensitivization effects on Clarlies report was 32 kW EIRP
> using a 432 MHz antenna & power amplifier EME class system.
>
> This EIRP power on U-band uplink was  64 time or 18 dB more power than
> the maximum 0.5 kW or 500 W EIRP recommended  on U-band uplink to
> stay 10 dB belove the beacon level.
>
> 73" de i8CVS Domenico
>
> ----- Original Message -----
> From: Charles Suckling <charles.suckling@ntlworld.com>
> To: Alberto Iglesias Darriba <ea1dld@arrl.net>
> Cc: <amsat-bb@AMSAT.Org>
> Sent: Sunday, April 07, 2002 9:34 AM
> Subject: RE: [amsat-bb] U-Band and L-Band systems used in recent tests
>
>
> > Alberto
> >
> >
> > Thanks for your email.
> >
> > I am not certain what antenna I8CVS was using.
> >
> > For L-Band,  I have a 3m dish fed with a 2.25 turn RUH style helix
scaled
> > to 1269. Max power into the feed is about 10W. For normal operation, I
> have
> > a switched attenuator in the system between the upconverter and the PA
to
> > reduce power as needed to maintain a proper downlink level. Please see
> > http://www.g3wdg.free-online.co.uk/wdg042.htm for details.
> >
> > 73
> >
> > Charlie G3WDG
> >
> > ----
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>
>
>
>
>
>
>
>
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