[amsat-bb] Re: rotator questions

i8cvs domenico.i8cvs at tin.it
Sat Aug 15 17:03:35 PDT 2009


Hi Dave, K4DLG

Very interesting experiece. Do you remember the radar receiving frequency
and the gain of the radar antenna in the plain of Azimuth ?

Tanks for your answere.

73" de

i8CVS Domenico

----- Original Message -----
From: "David Gendle" <dgendle at cfl.rr.com>
To: <amsat-bb at amsat.org>
Sent: Saturday, August 15, 2009 5:02 PM
Subject: [amsat-bb] Re: rotator questions


> Greetings!
>
> This thread is bringing back memories.
>
> Eons ago (60's) when I was servicing long range radar for the USAF
> once a month the third shift crew would have to verify the proper
> azimuth and elevation orientation of our antennas.  We would stop all
> antenna motion, stop transmitting and crank the receiver gain full
> up.  At a specific instant when the sun just broke over the horizon
> we would verify if the azimuth and elevation of the antenna was
> correct by using the large noise burst from the sun.  Using this
> method we could get the antennas within 2 degrees of perfect
> orientation.  It was a foolproof procedure because the location of
> the sun was always predictable.
>
> Ahh.... the good old days! :-)
>
> 73,
> Dave _ K4DLG
>
>
>
>
>
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