[amsat-bb] Re: AO-51 L-band antenna

Greg D. ko6th_greg at hotmail.com
Tue Feb 12 21:11:33 PST 2008

I've had good luck with a home-built 18 turn helix antenna on a rotor, sending about 10 watts up 60' of hardline and about 12' of RG-213.  Backing off the power I still got a good quieting signal with maybe 5 watts (hard to tell - no meter in the shack), before it started getting a little scratchy.  Not sure what that computes to in terms of EIRP.

See http://home.wavecable.com/~ko6th, at the bottom of the page.

Greg  KO6TH

> Date: Tue, 12 Feb 2008 10:58:58 -0800
> From: jeff at mock.com
> To: amsat-bb at amsat.org
> Subject: [amsat-bb]  AO-51 L-band antenna
> What is a good choice for an L-band uplink antenna for AO-51?  Is it 
> possible to use an omni antenna or do you need to be able to point at 
> the satellite?
> thanks,
> jeff
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