[amsat-bb] Re: Finally managed an Arrisat-1 real time telemetry decode!

Farrell Winder fwinder at fuse.net
Fri Dec 23 16:48:02 PST 2011

Hello Burns,

Very good on your reception in New Hampshire.  I was calling W4HTB and W8RVH 
who were trying to find me with my receiver fixed  on 145.930   for the 
20:16Z  pass over Cincinnati.  I was able to hear my downlink for about a 
minute before ARISSat-1/RADIOSKAF-V reached Max El then lost it for a while 
as my Tx antenna had no El control.   I picked it up near the end of the 
pass and heard fairly strong CW  near my Rx freq.   From the variation I 
observe I believe the satellite is in a slight tumble as the 145.930 MHz 
reception goes very weak then builds, sometimes rapidly..  I was fortunate 
to get an SSTV picture through the transponder on Nov 12 when by chance  I 
managed to get lined up with the short antenna on the  70 cm receiver to 
transmit  an R36 picture..  I may try SSTV again if signals warrant.  I hope 
others will keep trying CW, voice or SSTV.  I do observe that the signals 
seem to be stronger at the sats lower altitude.

Farrell Winder, W8ZCF
Cincinnati, Ohio

  From: "Burns Fisher" <burns at fisher.cc>
Sent: Friday, December 23, 2011 3:44 PM
To: <amsat-bb at amsat.org>
Subject: [amsat-bb] Finally managed an Arrisat-1 real time telemetry decode!

> I'm excited!  A few minutes ago on the ARISSat-1 pass over New Hampshire
> (US) I received it nice and strong (as usual) got the doppler correction
> running on SDR-Radio (have done that before), and with a newly-built
> computer in my shack finally had enough processing power to deal with
> SDR-Radio, Virtual Audio Cable, AND the ARISSat telemetry decoder, so I 
> got
> some actual real time telemetry.  Just in time for the "last telemetry
> frame" contest, I'm afraid :-)
> Was anyone hitting the repeater around 20:20 UTC today?  I was not
> listening, but watching on the waterfall display of SDR-Radio.  The
> telemetry and the FM digitalker were very clear...not sure if there was
> anything in between...I saw a few smudges that might have been 
> modulation...
> Burns, W2BFJ
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