[linux-dvb] Crystal Palace - only some channels

Sid Boyce sboyce at blueyonder.co.uk
Tue Feb 15 16:44:31 CET 2005


Linux TV wrote:
> Hi y'all.
> 
> I've finally got my Hauppauge WinTV-NovaT card working - through 2 
> inline signal boosters, but I'm not getting all the channels in my 
> channels.conf file.
> 
> To test I'm simply using tzap in one window and piping the 
> /dev/dvb/adapter0/dvr to mplayer
> 
> 
> Can anyone explain why some channels in a multiplex work while others 
> don't? For instance :
> 
> #Multiplex B BBC - Channel 28, Offset -, Frequency 529833333
> #Community                (0x4e00) 01: PCR 0x1fff
> #703                      (0x4c80) 01: PCR 0x1fff
> BBC 
> PARLMNT:529833333:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:403 
> 
> BBC 
> FOUR:529833333:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:201:401 
> 
> 701:529833333:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:204:411 
> 
> 702:529833333:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:203:407 
> 
> CBeebies:529833333:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:401:402 
> 
> BBC Asian 
> Net:529833333:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:435 
> 
> 1Xtra 
> BBC:529833333:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:434 
> 
> BBC 
> 7:529833333:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:433 
> 
> BBC 6 
> Music:529833333:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:432 
> 
> BBC 5L 
> SportsX:529833333:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:431 
> 
> BBC R5 
> Live:529833333:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:430 
> 
> 
> 
> I can get 701, 702, BBC FOUR, but not all the rest.
> 
> Also, it doesn't seem to be a factor of signal strength, snr etc as to 
> which channels mplayer will display.  for instance :  looking at the 
> below, I can watch 'Sky Travel' but not 'CHANNEL4' or 'ITV 1'
> 
> any ideas?
> 
> 
> tzap -c ~/.tzap/channels.conf -r 'CHANNEL4'
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> tuning to 481833333 Hz
> video pid 0x0b0b, audio pid 0x0b0c
> status 00 | signal 00ff | snr c000 | ber 00003fff | unc 00000100 |
> status 1f | signal 0044 | snr ffdf | ber 0000000f | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0044 | snr fffe | ber 00000001 | unc 00000005 | 
> FE_HAS_LOCK
> status 1f | signal 0044 | snr ffd7 | ber 00000028 | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0045 | snr ffdf | ber 00000020 | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0045 | snr ffe0 | ber 0000001f | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0045 | snr ffc3 | ber 0000003c | unc 00000010 | 
> FE_HAS_LOCK
> status 1f | signal 0044 | snr fff4 | ber 0000000b | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0044 | snr fff6 | ber 00000009 | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0044 | snr ffe2 | ber 0000001d | unc 00000100 | 
> FE_HAS_LOCK
> 
> [root at nzbaxters ~]# !935
> tzap -c ~/.tzap/channels.conf -r 'ITV 1'
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> tuning to 481833333 Hz
> video pid 0x0200, audio pid 0x028a
> status 01 | signal 0045 | snr ffd4 | ber 0000002b | unc 000000eb |
> status 1f | signal 0045 | snr ffa8 | ber 00000057 | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0045 | snr ffb1 | ber 0000004e | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0045 | snr ffc5 | ber 0000003a | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0045 | snr ffc8 | ber 00000037 | unc 00000100 | 
> FE_HAS_LOCK
> 
> [root at nzbaxters ~]# !926
> tzap -c ~/.tzap/channels.conf -r 'Sky Travel'
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> tuning to 578166666 Hz
> video pid 0x012d, audio pid 0x012e
> status 00 | signal 00ff | snr c000 | ber 00003fff | unc 00000100 |
> status 1f | signal 0047 | snr ffc8 | ber 00000037 | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0047 | snr ff99 | ber 00000066 | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0047 | snr ffe4 | ber 0000001b | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0047 | snr fff0 | ber 0000000f | unc 00000100 | 
> FE_HAS_LOCK
> status 1f | signal 0047 | snr ffe3 | ber 0000001c | unc 00000100 | 
> FE_HAS_LOCK
> 
> 
> 
> _______________________________________________
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> linux-dvb at linuxtv.org
> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
> 
> 

If you are still having problems, it may yet be due to signal levels. I 
had to change my original antenna which was for the analogue channels 
and experiment with positioning, but I still get the occasional blips on 
ITV channels, especiallly bad during the evening, hoping that will be 
cured when I can find the darn booster that's hiding somewhere. I'm 
pretty high up, but I believe there is still a bit of a hill between me 
and the SuttonColdfield antennas.
The only way I could get the thing to work was the method you are using 
and finally with kaffeine-dvb, xawtv, kaxtv and tvtime were all failures 
with either audio, video or acquiring channels. This card is still a 
mystery to me, it works without the tuner and tvaudio modules loaded, 
dvr works a treat.
Regards
Sid.
-- 
Sid Boyce .... Hamradio G3VBV and Keen Flyer
=====ALMOST ALL LINUX USED HERE, Solaris 10 SPARC is just for play=====




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