[amsat-bb] Re: AO-51 Signal Strength
summit496 at live.com
Thu Nov 24 23:25:48 PST 2011
Well I sure miss the early morning passes thats for sure. I can hear it about as well as SO-50 now without the fade like you said John. Thats using a Diamond 10 element 70cm and 9913 coax for receive. Been having a little trouble goin in with 3 watts, thats what my meter says anyway. I did get a easterly Turkey Pass with WA4NVM and AJ5C today at only 4 deg. elevation before I lost it so it is working.
Not much left to talk on up there...:( Maybe Opera will buy us one?
> Date: Thu, 24 Nov 2011 17:23:44 -0500
> To: amsat-bb at amsat.org
> From: john at papays.com
> Subject: [amsat-bb] AO-51 Signal Strength
> AO-51 is extremely weak now. Normally AO-51 would
> produce a signal in excess of .6 uV at the receiver
> in the shack. This is from a 40el KLM with a 20'
> 9913 pigtail and 50' of 7/8" Heliax. The maximum
> signal strength on the 2113z 24Nov pass (38 degree
> elevation) was only .22uV. It is down about 7 or 8
> db from just a few days ago. As a comparison, a
> SO-50 pass at 2151z (6 degree max) produced .25 uV.
> SO-50 continues to fade severely whereas AO-51 does
> not exhibit that fading on Left Hand Circular.
> AO51 was in the sun for about 40 minutes before my AOS.
> The angle might not have been that great but it wasn't
> that close to darkness.
> It's getting harder to hear AO-51 now. Many stations are
> heard but don't respond when called. Let's hope it stays
> on the air. The data buzz is now heard all the time where
> a week ago it only appeared a minute or two before eclipse
> on the morning passes and was never apparent on the afternoon
> passes. Even with the low power it's still a great satellite.
> Use it while it is still working.
> John K8YSE
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