Re: [amsat-bb] poor snr on ao 40 2nd note

["Nick Pugh" <quadpugh@xxxxxxxxxxxxx>]

Helmut
pointing errors would explain the contradiction in sun noise and lack of
signal on ao 40 however the dish was manual peaked and made several
measurements

nick


----- Original Message -----
From: "Helmut Strickner" <hstr@gil.com.au>
To: "Nick Pugh" <quadpugh@bellsouth.net>; <amsat-bb@AMSAT.Org>
Sent: Thursday, September 20, 2001 8:41 AM
Subject: Re: [amsat-bb] poor snr on ao 40 2nd note


> I believe that you are having pointing problems with your 6 ft dish!
>
> Nick Pugh wrote:
>
> > Here is my set up
> >
> > 6 ft dish gain 31 db linear pol
> > DEM pre amp .85 db nf gain 17 db
> > AIDC 3733 lnb stub removed
> > 3 db loss coax between LNB and receiver
> > Yaesu 736 receiver
> >
> >
> > I am receiving 6db of sun noise  this implies g/t of 8 db
> >
> > I am receiving the MB  15 db above the noise with squint angle < 10 deg
> > range app 50 k km.I think that i should see the MB at 27 db above the
> noise.
> > To put it another
> > way if i see 6 db of sun noise what should i see the MB with squint
angle
> <
> > than 10 deg range app 50 k km.
> >
>
>
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