[amsat-bb] Re: UO-11 up and running

[Douglas Quagliana]

Mark Vandewettering wrote:

 >Elevation was less than 20 degrees here for the western pass, but I 
 >wandered outside with my little VX3R and my Comet antenna, and sure
 >enough, it was banging away.  I don't have any telemetry decoders
 >(no windows boxes anymore) but I did record some audio which you
 >can download from my blog:
 >http://brainwagon.org/?p=2737

Hi Mark,
   Thanks for posting the recording!

   I downloaded your recording and ran it through
my DSP soundcard UO-11 demodulator. Most of the
data in your recording looks like this, although
other sections are quite noisy.

UOSAT-2           0711024074656
000000010001020002030003040004050005060006070007080008090009
100001110000120003130002140005150004160007170006180009190008
20000221000322000023000124000625000726000427000528000A29000B
30000331000232000133000034000735000636000537000438000B39000A
40000441000542000643000744000045000146000247000348000C49000D
50000551000452000753000654000155000056000357000258000D59000C
60800E615FC1620004633305644402651E0C662AC467000168000E69000F

All of the columns of zeros are telemetry channels that have
failed. This agrees with what Clive has previously reported.

Earlier Clive reported:
 >The current status of the satellite, is that all the analogue
 >telemetry channels, 0 to 59 are zero, ie they have failed.
 >The status channels 60 to 67 are still working. The real
 >time clock is showing a large accumulated error [...]

Last month the clock was about 74 days slow, but it is now
about 81 days off.

In the past UO-11 also used to send stored ASCII bulletins
as well, but I think that capability of the satellite ended
when the spacecraft computer turned off. Anyone know
for sure?

73,
Douglas KA2UPW/5