Anyone have any luck receiving the telemetry? I've had success with the FM voice and SSTV but not with the telemetry. I have briefly heard the CW beacon but not long enough to get tuned in to receive the data.I'm using the ARISatTLM software, yagi antenna Az/El rotor, tracking with PCSat32, using doppler correction, etc..
Yes ... me :-)toggle quoted messageShow quoted text
I used orbitron for tracking the qrg
In hdsdr I switched the dde driver to control TUNE not the LO !!!
The fcd makes coarse steps when you tune it
The sdr soft can do finer steps and with that you can be right on spot
Ok here the setup
Orbitron for tracking qrg (any tracking soft with dde link should work)
Qrg is sent to hdsdr
Hdsdr sets the lo for the fcd 10kc lower as the qrg that orbitron sent via
dde (so during a pass lo is NOT changed!!) if the qrg is not in the passband
I change it after starting to be on 145940
Hdsdr does not change it anymore so pll of fcd stays locked!
In orbitron I made a new textfile : 37772.txt
**********start of txt file******
NAME: RADIOSKAF-B (ARISSAT-1)
LAUNCHED: 2011/08/03@18:43:00 UTC
SITE: Deployed from ISS on EVA29
DNLINK: 145.950 (FM)
DNLINK: 145.9183 (CW+BPSK1000)
DNLINK: 145.91835 (CW+BPSK1000)
DNLINK: 145.9184 (CW+BPSK1000)
Notes: ARISSAT-1 was launched without uplink antenna!
*********end of file************
(delete the lines with the stars!!)
You maybe have a bit different qrg to put in the file
So maybe you have to change tha value a bit
the goal is that you have the cw note at 500 to 650 hz
(about 550 worked best for me)
Now I routed the audio from sdr software to tlm software via virtual audio
The tlm software locks on the cw note ... so if you have it tuned right on
spot you should also receive the data
Hope that helps
Thanks for the info I'll download Orbitron and give it a try.toggle quoted messageShow quoted text
Not looking forward to the learning curve, I just got SatPC32 working correctly, and just figured out the ARISSatTLM package.
SatPC32 handles the doppler and tracking well, I just don't get a good signal from the CW Beacon and the SSB Telemetry. My understanding is to tune around 145.919MHZ USB until the CW ID tone is around 500HZ then every thing should lock and work. I've got a 65 deg. pass coming up at 10PM, I'll try again. Because this bird isn't spin stabilized, I think the deep fading is doing me in.
--- In Work-Sat@yahoogroups.com, "Siegfried Jackstien" <siegfried.jackstien@...> wrote:
Does pcsat32 has a dde link??? If yes then there is no need to switch overtoggle quoted messageShow quoted text
to orbitron .... what sat soft makes the tracking and doppler shift is not
important ... the importand thing is to shift the tune in hdsdr and not to
shift the lo (as fcd unlocks for a millisecond when you set new lo)
I let hdsdr stay on lo 145940 and record the whole rf ...
After decoding the bpsk "live" I played the recording back and decoded sstv
/voice .... so you can do both with one pc ...