[amsat-bb] Re: FUNcube telemetry performance?

Nick Pugh K5QXJ quadpugh at bellsouth.net
Mon Apr 21 02:07:05 PDT 2014

Hi Phil et All
I can copy and decode the beacon at 30 mw EIRP using the M^2 yagi at very
low SNR ~ 10 db SNR I do not see much fading


-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Phil Karn
Sent: Saturday, April 19, 2014 4:34 AM
To: amsat-bb at amsat.org
Subject: [amsat-bb] FUNcube telemetry performance?

I haven't done anything with AO-73, but I understand it's transmitting the
FEC format I originally designed for AO-40.

How well is it working? What fraction of the frames are successfully
decoded? How bad is the fading? I designed my format specifically for the
spin fading on AO-40, and if the fading due to the tumbling of a cubesat is
too slow my format won't be able to fix it.


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