Bruno Prior wrote: > > lot of corruption) got the DVB modules inserted again. This time, > ./dvbtune -f 505833 -qam 64 -cr 3_4 -i did not crash the machine, and > actually reported some services. However, it was various EMAP, MTV and > UKTV services, rather than the BBC services I was expecting. So I tried > again on 481833kHz, but this simply gave a "Nothing to read from fd_sdt" > error. So I went back to 505833kHz and this time, that gave me a > "Nothing to read from fd_sdt" error too". > > To cut a long story short, I tried the various frequencies that should > work in this area many times, and the results were consistently > inconsistent. The best example was a series of four attempts to tune to > 561833kHz. The four successive attempts found the following services: > > 1. BBC PARLMNT / BBC 4 / CBeebies / various BBC radio channels > 2. Sky News / Sky Spts News / Sky Travel / UKHistory > 3. ITV 1 / ITV 2 / Channel 4 / ITV News / Teletext > 4. Nothing to read from fd_sdt > > Each attempt reported something pretty close to the following at the > start (only difference would be small changes in Bit error rate and SNR): > > Using DVB card "Grundig 29504-401" > tuning DVB-T (in United Kingdom) to 561833000 Hz > polling.... > Getting frontend event > FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI > FE_HAS_SYNC > Event: Frequency: 561833000 > SymbolRate: 0 > FEC_inner: 2 > Bit error rate: 414 > Signal strength: 12079 > SNR: 54741 > FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI > FE_HAS_SYNC > <transponder type="T" freq="561833000"> > > So dvbtune claimed to be tuning to 561833 each time, but was finding > different services every time. As far as I understand it, that is > impossible. The only conclusion is that dvbtune is actually tuning > randomly to one of the channels when it is claiming to be tuning to the > channel you instructed it to. >
This is exactly the same behaviour I'm experiencing. When I did get any xml data from dvbtune it was also missing <stream> and <descriptor> elements. I have been able to the compile siemens_dvb-0.9.4.tar.gz and dvbtune-0.3 under SuSE 7.2 and generate tuning data for my transmitter (stockland hill, UK). I am currently running SuSE 8.1, linux-dvb.2003-01-08-ci-ll.tar.bz2, dvbtune from CVS and vdr-1.1.20. I have tried many different drivers and found the HEAD driver and any dvbtune combination does not work for me. My channels.conf generated from dvb-0.9.4, dvbtune-0.3, SuSE 7.2 combination works very well with my current setup except for channels on mux 2 and mux A. Vdr won't tune to any of these stations. Sorry I haven't any answers for you. Is there another to generate accurate tuning data? Regards Glenn -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe linux-dvb" as subject.
