[amsat-bb] Link Budget

Edward R Cole kl7uw at acsalaska.net
Sat Nov 7 21:53:06 UTC 2015

Maybe.  Ever heard of Moonbounce (eme)?

I have a 16-foot dish (4.9m) which can make 5w very loud on 
5-GHz!  Compared to a 3-foot dish it is 20Log(16/3) = 14.5 dB more 
gain (28 times as much signal strength).

It moves slow so would not track a LEO at all and only track HEO at 
the highest part of the orbit where angular rates are slow.  It 
tracks the Moon very nice.  I use in on 1296-eme with 125w.

5-GHz eme typically have 50w or more power.  Most run TWT's.  Some 
have hundreds of watts!

73, Ed - KL7UW

Date: Sat, 7 Nov 2015 16:22:13 -0500
From: Paul Stoetzer <n8hm at arrl.net>
To: KA9QJG <KA9QJG at comcast.net>
Cc: Joe <nss at mwt.net>, "amsat-bb at amsat.org" <AMSAT-BB at amsat.org>
Subject: Re: [amsat-bb] Link Budget
         <CABzOSOoLpP05UzjiE2fHkZ-7pwbH2+eBmcOJJYzc7EB78Da1VA at mail.gmail.com>
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The good thing is that high power at 5 GHz is expensive, so I doubt
anyone will be running too much more than they have to on P4B!


Paul, N8HM

73, Ed - KL7UW
     "Kits made by KL7UW"
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