On Thu, Jun 5, 2008 at 11:48 AM, jochen s <bumkunjo@xxxxxx> wrote: > > just an idea - is the throughput over USB of the 'bad' channel combination > (or on channel 0) higher or different to other combinations? can you exclude > USB-issues being the cause? for example AMD's SB600 and Hauppauge Nova-TD > don't work correctly together Hi jochen, thanks for your quick response. I'm not sure how to measure the USB throughput of the 'bad' channel combination. What I've tried to do is test simultaneous tuning of different channels on both receivers (the two inside the pinnacle), and most of them (actualy, all my tests) work ok. About those tests, I've found something new, and thus I'm replying directly to the list in order to give more information to anyone that can give some light about this: * Tuning different channels from different multiplexes on the two tuners inside the pinnacle stick *always* cause an increment on the BER field in the receiver-1 (tzap or femon output), but not enough to make UNC be different than 0 (I assume they can be corrected OK) * Tuning different channels from *the same* multiplex on the two tuners makes BER grow up *in both* tuners: one of them (tuner-0, the one attached to the back antenna connector) still offering good quality (no UNC), but the other one starts to produce glitches (UNC > 0) So it looks like, in some way, the fact of the two channels being on the same multiplex has some influence? Again, any help would be welcome, thanks in advance, Jose _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb