[amsat-bb] Re: tuning CP-6

Bryan Klofas bklofas at gmail.com
Sun May 24 21:06:41 PDT 2009

Hey Alan--

Nope, we weren't commanding the satellite. We have noticed some timing 
problems; it is supposed to beacon every 1 minute, but it seems like the 
timer gets reset once every 20 minutes or so. Not sure why it resets.

When the CW beacon transmits but there is no AX.25 follow-up, there was 
a problem with the I2C bus on board; the Comm PICs couldn't get data 
from the main processor on board, so they just CW beacon and stop (time 
out waiting). You should see the I2C error counter increment by several 
counts the next beacon (if you are running the CPX Decoder software.
Bryan Klofas, KF6ZEO

Alan P. Biddle wrote:
> Got a good pass at 2032 UTC today, with several data bursts decoded.  I did
> notice once when the CW ident and data burst repeated within a few seconds,
> and another time when there were two CW idents, but no data.  The intervals
> were back to 1 minute.  Perhaps they were commanding the satellite?
> Alan
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