Hello All, Several weeks ago we had a discussion on the linux-dvb mailinglist about the Twinhan vp1030c clone cards and problems with Diseqc switches which failed to switch between several LNBs. The conclusion was that there was a lot of noise on the cable, more noise than control signal for the Switch. This was for me one of the reasons to buy a new Technotrend S-1500 card. BUT, it turned out that this card also has the exact same problem with the switch as my Twinhan clone (Skystar 1 CI) card had. This is the reason why I borrowed several brands of switches and LNBs today to find out which part was causing troubles by replacing everything piece by piece. The results I want to share which you all, because it might help you, or others who read this and have also strange problems with the DiseqC switch and PCI-receiver cards. First some facts: 1. I have one dish, 1 x 4-port Diseqc switch, 3 LNBs, among 1 double output LNB (1 output connected to the switch, the other to a separate receiver). 2. A standard receiver works properly with this setup. The Technisat Skyastar 1 CI card did not. So, I searched the problem in the card. Today, Eventually it turned out that the double output LNB was the root-cause of all troubles. This LNB did not play well with the switch, and this LNB caused all the noise on the line! This LNB worked properly with another receiver, but NOT with both my PCI-cards (Technisat and Technotrend card) I would expect that the switch would switch off any LNB, but in fact it doesn't, apparantly my trouble LNB does not want to be switched off... Replacing this LNB with another brand (still double output) solved the problem completely. BTW: I noticed that the Technotrend card is much more stable than the Skystar 1 CI card. Especially the CI interface hung quite a lot, of the Skystar card, while changing channels. Sometimes even a hard-reset of the complete PC was required to bring it back to life again. So, the Skystar card will still find its way to the garbage... Kind Regards, Remy Böhmer _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
