On Wed, 17 Sep 2008, Markus Rechberger wrote: > >> Is it possible to access the sampling subsystem of a dvb card > >> as like skystar 2 or any other ? > have you had a look at: > http://www.gnu.org/software/gnuradio/ I have now :-) thanks And I feel really stupid, thinking this was a beginner question. And I wish I had been asleep now. My foot tastes terrible. As you see, my understanding of the word `sampling' is based on my understanding and work in radio and telephony some 30 years ago, when I didn't even realize that what I was doing would be somehow relevant today. Anyway, I really do not know, but I would imagine that most current sat devices, including the SkyStar, expect to have a hardware demodulator in place, and have no provision to get at the signal on the other side of that chip. Which makes me wonder -- the IF of a satellite signal is typically 1GHz and up. Is there a standard second IF frequency that various hardware uses? Given that it is possible to have transponders with high symbol rates, I wonder if satellite software receivers will be pushing too hard on bandwidth of various busses -- which already seem to suffer when delivering already-demodulated data. Those familiar with chip and board design can answer the original question far better than I ever could. Then again, I have my head firmly set on 20-year-old hardware designs... think i'll quietly close my mailreader barry bouwsma _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
