scandvb not finding channels

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Hi:
I can't get scandvb to find that many channels with my USB DVB-T HVR.

My environment: Redhat FC5, Linux stock 2.6.16-1.2111_FC5 kernel,
Hauppauge WinTV HVR 900, Installed exactly as per
http://www.linuxtv.org/v4lwiki/index.php/Em2880#Installation

I'm using a roof-top arial in NW London that works fine with a normal
Freeview STB. The HVR finds all channels it should when using Windows, but
when I try it in Linux it only finds a very few. I beleive my drivers are
bang up to date, please correct me if I'm wrong.

When I try:
 scandvb /usr/share/dvb-apps/dvb-t/uk-CrystalPalace
I get:
 scanning /usr/share/dvb-apps/dvb-t/uk-CrystalPalace
 using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
 initial transponder 505833333 0 3 9 1 0 0 0
 >>> tune to:   
505833333:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
 >>> tune to:  
505833333:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
 WARNING: >>> tuning failed!!!
 ERROR: initial tuning failed
 dumping lists (0 services)
 Done.


When I try:
 scandvb /usr/share/dvb-apps/dvb-t/uk-Oxford
I get a few channels but not as many as I expected (see end of post for
details)

The only way I could get it to work was to edit the scandvb
initial-tuning-data-file and plug the frequencies from the Windows scan
into it one-by-one. This eventually found all the channels it should. The
frequencies I used were:

482000000, 506000000, 530000000, 538000000, 562000000, 578000000

What am I doing wrong?


---------------------------------------------------------------------------
scandvb results:

scanning /usr/share/dvb-apps/dvb-t/uk-Oxford
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 578000000 0 2 9 3 0 0 0
>>> tune to:
578000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
0x0000 0x5640: pmt_pid 0x02bd Sky -- Sky News (???)
0x0000 0x5680: pmt_pid 0x02be Sky -- Sky Spts News (???)
0x0000 0x56c0: pmt_pid 0x02bf Sky -- SKY THREE (???)
0x0000 0x5700: pmt_pid 0x02c0 UKTV -- UKTV History (???)
0x0000 0x5740: pmt_pid 0x02c1 Channel 4 TV -- E4+1 (???)
0x0000 0x5780: pmt_pid 0x02cc Square1 Management Ltd -- smileTV (???)
0x0000 0x5840: pmt_pid 0x02c2 talkSPORT -- talkSPORT (???)
0x0000 0x59c0: pmt_pid 0x02c8 London Christian Radio Ltd -- Premier Radio
(???)
0x0000 0x5a00: pmt_pid 0x02c9 Score Digital -- 3C (???)
0x0000 0x5c40: pmt_pid 0x02cb yoomedia -- YooPlay Games (???)
0x0000 0x5c80: pmt_pid 0x02cd Sky -- Sky Text (???)
Network Name 'Crystal Palace'
>>> tune to:
505833330:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to:
505833330:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=554000000
>>> tune to:
554000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
Network Name 'Crystal Palace B'
0x1004 0x9044: pmt_pid 0x0258 BBC -- BBC HD1 (running)
>>> tune to:
481833330:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to:
481833330:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=474000000
>>> tune to:
474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=746000000
>>> tune to:
746000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
746000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=658166670
>>> tune to:
658166670:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
658166670:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
561833330:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to:
561833330:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=498000000
>>> tune to:
498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=786166670
>>> tune to:
786166670:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
786166670:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=634166670
>>> tune to:
634166670:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
634166670:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
529833330:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to:
529833330:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=522000000
>>> tune to:
522000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
Network Name 'Crystal Palace B'
0xa005 0xa045: pmt_pid 0x00a0 ITV -- ITV HD Trial (running)
0xa005 0xa0c0: pmt_pid 0x00b4 Channel 4 -- Ch4 HD Trial (running)
0xa005 0xa0d0: pmt_pid 0x00c8 Channel 5 -- five HD Trial (running)
>>> tune to:
578166670:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
0x5000 0x5640: pmt_pid 0x02bd Sky -- Sky News (???)
0x5000 0x5680: pmt_pid 0x02be Sky -- Sky Spts News (???)
0x5000 0x56c0: pmt_pid 0x02bf Sky -- SKY THREE (???)
0x5000 0x5700: pmt_pid 0x02c0 UKTV -- UKTV History (???)
0x5000 0x5740: pmt_pid 0x02c1 Channel 4 TV -- E4+1 (???)
0x5000 0x5780: pmt_pid 0x02cc Square1 Management Ltd -- smileTV (???)
0x5000 0x5840: pmt_pid 0x02c2 talkSPORT -- talkSPORT (???)
0x5000 0x59c0: pmt_pid 0x02c8 London Christian Radio Ltd -- Premier Radio
(???)
0x5000 0x5a00: pmt_pid 0x02c9 Score Digital -- 3C (???)
0x5000 0x5c40: pmt_pid 0x02cb yoomedia -- YooPlay Games (???)
0x5000 0x5c80: pmt_pid 0x02cd Sky -- Sky Text (???)
Network Name 'Crystal Palace'
>>> tune to:
537833330:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to:
537833330:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=834000000
>>> tune to:
834000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
834000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=826000000
>>> tune to:
826000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
826000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
retrying with f=738000000
>>> tune to:
738000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
738000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_3_4:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to:
554167000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
0x9004 0x9044: pmt_pid 0x0000 BBC -- BBC HD1 (running)
Network Name 'Crystal Palace B'
>>> tune to:
522167000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QPSK:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
0xa005 0xa045: pmt_pid 0x00a0 ITV -- ITV HD Trial (running)
0xa005 0xa0c0: pmt_pid 0x00b4 Channel 4 -- Ch4 HD Trial (running)
0xa005 0xa0d0: pmt_pid 0x00c8 Channel 5 -- five HD Trial (running)
Network Name 'Crystal Palace B'
dumping lists (30 services)
Done.



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