Mark,
If you can get the CW at 1200 Hz, the following telemetry burst will be right on frequency, and decode every time. Using MixW is a great way to do this. You just need to be very quick with the mouse. ;)
DK3WN and I have both found that 2009-028D, NORAD 35004, currently gives much better agreement, especially on Doppler correction, than the others, including 35002 which CalPoly had on their site. Based on the passes yesterday afternoon, my current DOPPLER.SQF file has this:
2009-028D,437364.3,0,LSB,,NOR,0,0
Mike finds a slightly lower RF frequency, but that may just be calibration. Except for one burst at an over the top TCA, the CW was within 200-300 HZ of predicted the whole pass, and the telemetry program has able to handle the slight deviation.
73s,
Alan WA4SCA
Alan,
aaahh - you use LSB ;-)
I take the other sideband -> therefore up to 22000 Hz ...
Just had a 2 degr pass here and tracked to OBJ D and a fixed offset of 4 KHz. Could hear exactly 3 beacons without manually tuning (mhh, it's no big deal with such a low pass...) Beacon interval is now 2 minutes again.
73, Mike
-----Ursprüngliche Nachricht----- Von: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] Im Auftrag von Alan P. Biddle Gesendet: Sonntag, 24. Mai 2009 13:49 An: AMSAT-BB Betreff: [amsat-bb] Re: tuning CP-6
Mark,
If you can get the CW at 1200 Hz, the following telemetry burst will be right on frequency, and decode every time. Using MixW is a great way to do this. You just need to be very quick with the mouse. ;)
DK3WN and I have both found that 2009-028D, NORAD 35004, currently gives much better agreement, especially on Doppler correction, than the others, including 35002 which CalPoly had on their site. Based on the passes yesterday afternoon, my current DOPPLER.SQF file has this:
2009-028D,437364.3,0,LSB,,NOR,0,0
Mike finds a slightly lower RF frequency, but that may just be calibration. Except for one burst at an over the top TCA, the CW was within 200-300 HZ of predicted the whole pass, and the telemetry program has able to handle the slight deviation.
73s,
Alan WA4SCA
_______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
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 WA4SCA
hi All
any body already receive certificate ? 25 th aniversary of ham radio in Space
until now I don't receive a certificate, to where/who I must checking ? for confrimation my QSL card already receive in ARRL ? my qsl card send Nov orDec 2008 to ARRL HQ.
thanks Dirgan YF0EEE - now YE0EEE
An update was sent out in early May. You can read it at http://www.amsat.org/amsat/archive/sarex/100day/msg10565.html
Kenneth - N5VHO ________________________________________ From: amsat-bb-bounces@amsat.org [amsat-bb-bounces@amsat.org] On Behalf Of Dirgantara YFØEEE [enggi1401@gmail.com] Sent: Sunday, May 24, 2009 4:34 PM To: AMSAT-BB Subject: [amsat-bb] 25th Anniversary of Ham Radio in Space
hi All
any body already receive certificate ? 25 th aniversary of ham radio in Space
until now I don't receive a certificate, to where/who I must checking ? for confrimation my QSL card already receive in ARRL ? my qsl card send Nov orDec 2008 to ARRL HQ.
thanks Dirgan YF0EEE - now YE0EEE
_______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
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 WA4SCA
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Bryan,
Thanks for the clarification. I am starting to try and pick out the patterns.
73s,
Alan WA4SCA
participants (5)
-
Alan P. Biddle -
Bryan Klofas -
Dirgantara YFØEEE -
Mike Rupprecht -
Ransom, Kenneth G. (JSC-OC)[BARRIOS TECHNOLOGY]