On 02/20/2008 08:24 PM, Remy Bohmer wrote: > Hello All, > > Maybe I have the answer: > I also had problems with switches and LNBs which did not want to work properly. > Behind 1 receiver it worked properly, but behind another 2 different > DVB-S PCI cards, it just failed. I never suspected the LNB/Switch > setup, because it worked behind another receiver. > But, In the end it turned out that there was 1 LNB in my setup that > caused all the trouble, that LNB refused to cooperate with the > switches and other LNBs, when a DVB-S PCI card was used (both > Technisat Skystar 1CI, and TT-S1500). Once switched to this LNB, the > complete setup failed to work from that moment on. I could never > switch back to 1 of the previous LNBs, but the last (buggy) LNB still > worked if I switched back to it. > > So, my advice is to start with 1 LNB behind a switch, once it works, > add another one, check if both LNBs still works, if so, add another > LNB and so on. Maybe you end up, just like me, with 1 LNB that > destroys the complete behavior. > > So, my 3 TT-S1500s are properly working here now with MythTv and > DiseqC switches with 4 LNBs per card/switch. So, it _can_ work... > > > Good luck! > > > Kind Regards, > > Remy > > > > 2008/2/20, P. van Gaans <w3ird_n3rd@xxxxxxx>: >> On 02/20/2008 10:48 AM, Doru Marin wrote: >> > P. van Gaans wrote: >> >> On 02/18/2008 02:04 PM, Doru Marin wrote: >> >> >> >>> P. van Gaans wrote: >> >>> >> >>>> On 02/16/2008 01:20 AM, P. van Gaans wrote: >> >>>> >> >>>> >> >>>>> On 02/13/2008 09:21 PM, P. van Gaans wrote: >> >>>>> >> >>>>>> On 02/13/2008 03:01 PM, Doru Marin wrote: >> >>>>>> >> >>>>>>> Hi, >> >>>>>>> >> >>>>>>> Can you explain how you select those 4 positions ? DiSEqC >> >>>>>>> commands or tone/voltage changes ? >> >>>>>>> Also can you determine the input type of those positions (Hi/Low, >> >>>>>>> H/V, etc) ? A scenario to see when and why that happens, would be >> >>>>>>> more useful. >> >>>>>>> >> >>>>>>> P. van Gaans wrote: >> >>>>>>> >> >>>>>>>> Hi, >> >>>>>>>> >> >>>>>>>> I've got a Technotrend S-1500 (if it matters: I use it with >> >>>>>>>> Kaffeine 0.8.3). It works mostly fine, but there's a strange >> >>>>>>>> problem. With my Spaun 4/1 DiSEqC switch (they cost approx 25-40 >> >>>>>>>> euro), I can only switch without trouble to position 1 and 2. If >> >>>>>>>> I tune directly to position 3 it won't lock. >> >>>>>>>> >> >>>>>>>> However, if I first tune to a channel on position 1 or 2 and try >> >>>>>>>> a channel on position 3 after that, it will work. Position 4 >> >>>>>>>> however is completely unreachable. >> >>>>>>>> >> >>>>>>>> On a standalone receiver, there's no trouble with the same cable. >> >>>>>>>> >> >>>>>>>> Now Spaun is a really expensive and respected brand. So their >> >>>>>>>> switches possibly work in a different way, because a cheap >> >>>>>>>> Maximum 4/1 switch works perfectly with the S-1500. Position 1, >> >>>>>>>> 2, 3 and 4 all work perfectly. I also did some "dry testing" >> >>>>>>>> indoors and it looks like a 7 euro Satconn 4/1 switch would also >> >>>>>>>> work fine, but a 17 euro Axing SPU 41-02 probably won't. >> >>>>>>>> >> >>>>>>>> I'm guessing this could be solved in stv0299.c but I'm not much >> >>>>>>>> of an expert. I took a look at the code but I'm not really sure >> >>>>>>>> what to do. >> >>>>>>>> >> >>>>>>>> _______________________________________________ >> >>>>>>>> linux-dvb mailing list >> >>>>>>>> linux-dvb@xxxxxxxxxxx >> >>>>>>>> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb >> >>>>>>>> >> >>>>>> I select them with Kaffeine. Hi/low and H/V doesn't matter. I >> >>>>>> tried upgrading to Kaffeine 0.8.5 but that doesn't make a >> >>>>>> difference. The "scan" application has the same issues. >> >>>>>> >> >>>>>> _______________________________________________ >> >>>>>> linux-dvb mailing list >> >>>>>> linux-dvb@xxxxxxxxxxx >> >>>>>> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb >> >>>>>> >> >>>>>> >> >>>>> Nobody any ideas? If not, does anybody have some idea what the >> >>>>> difference between position 1+2, pos 3 and pos 4 could be? I was >> >>>>> thinking 1 and 2 might be working because of toneburst, but I don't >> >>>>> think Kaffeine uses such a signal and that doesn't explain why pos >> >>>>> 3 works if first tuning to 1 or 2 and 4 doesn't work at all. >> >>>>> >> >>>>> >> >>>> I've figured out a bit more. If I tune directly to postion 3, I get pos >> >>>> 1. Whenever I tune to pos 4, I get pos 2. >> >>>> >> >>>> I'll also ask people from Kaffeine as I'm not sure if the problem is >> >>>> in the application, driver or somewhere else. >> >>>> >> >>>> _______________________________________________ >> >>>> linux-dvb mailing list >> >>>> linux-dvb@xxxxxxxxxxx >> >>>> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb >> >>>> >> >>> Hi, >> >>> >> >>> Strange scenario. You're not saying anything about input types and >> >>> the switch type. Are you sure that are properly connected ? How the >> >>> switch inputs are marked and from where you got the input signals ? >> >>> Please elaborate, if you want a proper answer. >> >>> I suggest to play with 'scandvb' from dvb-apps package instead of >> >>> Kaffeine. Look into scanning results if the scanned channels match >> >>> with what you wished to have on those positions. >> >>> >> >>> >> >> Hi, >> >> >> >> What do you mean with input type? >> >> >> >> Anyway, this is my config: >> >> >> >> Visiosat Bisat G3C for 19.2/28.2/23.5 + Triax 54cm for Hotbird >> >> 4 quad LNBs >> >> >> >> Spaun SAR 411F: >> >> A = Astra 19.2 >> >> B = Astra 28.2/Eurobird1 >> >> C = Astra 23.5 >> >> D = Hotbird >> >> >> >> Maximum 4/1: >> >> A = Astra 19.2 >> >> B = Astra 28.2/Eurobird1 >> >> C = Astra 23.5 >> >> D = Hotbird >> >> >> >> All works fine on a standalone so it is connected correctly. >> >> >> >> _______________________________________________ >> >> linux-dvb mailing list >> >> linux-dvb@xxxxxxxxxxx >> >> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb >> >> >> > Hi, >> > >> > Ok, If I understood you correctly, you're talking about only plain >> > DiSEqC switch, with no polarity/tone management. Polarity and tone >> > switching are done by LNB's. >> > Recently, I found a branded switch, which was unable to decode a DiSEqC >> > commands while polarity was on horizontal (18V). >> > Maybe is the same situation, maybe not. That's why I asked you to check >> > the polarity/tone settings of the channels while switching to a >> > different channel on a different satellite. >> > >> >> >> That's right, no multiswitches or something like that. The last time I >> checked (a while ago), the Spaun was still completely working on my >> standalones. But as I figured out yesterday, something is wrong with >> that now. The standalones don't see D (Hotbird) anymore either. So I'm >> first going to fix that. >> >> Trying to switch from Flaunt (V) to 4fun.tv (V) doesn't work either, so >> it's not the same problem I guess. >> >> >> _______________________________________________ >> linux-dvb mailing list >> linux-dvb@xxxxxxxxxxx >> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb >> > I've been on the roof. The cable from the Spaun switch to the Hotbird LNB was a mess. I've fixed it and now everything works. Do note though, that Kaffeine 0.8.6 that sends diseqc commands twice is required for the Spaun/Axing switches to work correctly. _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
