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Re: S-Band AO-51



Art,
Yes, it can be difficult to operate via V/S mode alone standing in the backyard in the dark.  I worked AO-51 last night (contacted Robin, VE3FRH our ex-president) and used 2 different radios since the all mode radio I use to power the downconverter has the 2 meter IF. The antennas are controlled manually and the big effort was the large doppler correction during the pass on 2.4ghz.  It seems that most of us will have to have the use of 2(two) 2 meter radios as we all are in the same boat with the downconverter with the 2 meter IF. (& don't want to blow the downconverter)  Probably, when the control team (hint!!??) gets a suggestion- uhf up and 2.4ghz down would be easier to accomplish with a single dual band radio that has seperate 145 and 435 antenna connections to accomodate the downconverter.
Have fun with the birds, experimentation is part of this end of the hobby.
73,
Dee, NB2F
NJ AMSAT Co-ordinator

----- Original Message -----
From: KC6UQH <kc6uqh@cox.net>
Date: Wednesday, June 22, 2005 1:27 am
Subject: [amsat-bb] S-Band AO-51

> I tried my 20" dish, heard a partial call and then lost signal 
> close to the
> zenith of the pass. Never found it again. Doing this out in the 
> dark with no
> computer, and trying to tune for doppler having drops in the 
> signal while
> trying to point the antenna is a hopeless task. It might be fun 
> for a
> computer tech who dosn't mind picking out signals from the 
> computer birdies
> but it is not for me. I suspect that the S band antenna is mounted on
> another corner of the bird that rotates in and out of view causing 
> the loss
> of signal.  I will pin my Field day hopes on FO-29 and try for 51 
> only if I
> have nothing else to do.
> Art ,KC6UQH
> ----
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