[linux-dvb] DVB-T in Australia problem

[Malcolm Caldwell <malcolm.caldwell@ntu.edu.au>]

Hello,

I have been trying to get a DVB-T card working in Darwin Australia.  In
Australia each of the original analogue channels now have their own
multiplex (they need the bandwidth for HDTV).

I can tune one of the multiplexes here fine - the other 3 don't work.  I
have been working on the assumption that it is my antenna that is the
problem.  I have installed a longer pole and the one multiplex that
works now has a lower verror - but I still get nothing for the others. 
I *think* I am using the correct frequencies and other modulation
parameters.

Are we sure that there is no driver problem at play here?

Below are some logs with tzap and scan.  (For scan I 'if 0'ed out the
existing dvb-t definitions and added the local multiplexes - for each
frequency I tried what is supposed to be the two sets of modulation
paremeters used in Australia)

Of note I have a working Budget DVB-S card in this system:

Working channel:

# ./tzap -a 1 NTD
using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0'
tuning to 550500000 Hz
status 01 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |
status 1f | signal 3a3a | snr d7d7 | ber 000000c6 | unc 00000000 | FE_HAS_LOCK
status 1f | signal 3a3a | snr cfcf | ber 000000c6 | unc 00000000 | FE_HAS_LOCK
status 1f | signal 3a3a | snr d5d5 | ber 000000c5 | unc 00000000 | FE_HAS_LOCK
status 1f | signal 3a3a | snr d3d3 | ber 000000bc | unc 00000000 | FE_HAS_LOCK
status 1f | signal 3a3a | snr d5d5 | ber 000000b8 | unc 00000000 | FE_HAS_LOCK
status 1f | signal 3a3a | snr d5d5 | ber 000000bd | unc 00000000 | FE_HAS_LOCK
status 1f | signal 3a3a | snr d6d6 | ber 000000ae | unc 00000000 | FE_HAS_LOCK
status 1f | signal 3a3a | snr d6d6 | ber 000000bd | unc 00000000 | FE_HAS_LOCK
status 1f | signal 3a3a | snr d3d3 | ber 000000c3 | unc 00000000 | FE_HAS_LOCK
status 1f | signal 3a3a | snr d7d7 | ber 000000ab | unc 00000000 | FE_HAS_LOCK
status 1f | signal 3a3a | snr d3d3 | ber 000000b0 | unc 00000000 | FE_HAS_LOCK
status 1f | signal 3a3a | snr d4d4 | ber 000000cc | unc 00000000 | FE_HAS_LOCK

Non-working channel:

#./tzap -a 1 ABC
using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0'
tuning to 543500000 Hz
status 01 | signal 3a3a | snr 0000 | ber 000000be | unc 00000000 |
status 01 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |
status 01 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |
status 01 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |
status 01 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |
status 01 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |
status 01 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |

Another:
# ./tzap -a 1 SBS
using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0'
tuning to 536500000 Hz
status 01 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |
status 03 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |
status 03 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |
status 03 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |
status 03 | signal 3a3a | snr 0000 | ber 0000ffff | unc 00000000 |


# ./scan -a 1
using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0'
>>> tune to: 543500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_3_4:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to: 543500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_3_4:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE (tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to: 543500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_2_3:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to: 543500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_2_3:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE (tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to: 536500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_3_4:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to: 536500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_3_4:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE (tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to: 536500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_2_3:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to: 536500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_2_3:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE (tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to: 550500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_3_4:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE
WARNING: >>> tuning failed!!!
>>> tune to: 550500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_3_4:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE (tuning failed)
WARNING: >>> tuning failed!!!
>>> tune to: 550500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_2_3:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE
0x0000 0x00c9: pmt_pid 0x0101 NINE -- Nine Darwin SD (running)
Network Name 'NINE'
dumping lists (1 services)
Nine Darwin SD:550500000:INVERSION_OFF:BANDWIDTH_7_MHZ:FEC_2_3:FEC_NONE:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:512:650:201
Done.


Card is:

Sep 17 18:05:33 guava kernel: DVB: registering new adapter (TT-Budget/WinTV-NOVA-T  PCI).
Sep 17 18:05:33 guava kernel: PCI: Found IRQ 5 for device 00:10.0
Sep 17 18:05:34 guava kernel: DVB: registering frontend 1:0 (Grundig 29504-401)...
Sep 17 18:05:35 guava kernel: mt312_read: ret == -121
Sep 17 18:05:35 guava kernel: TT-Budget/WinTV-NOVA-T  PCI adapter 1 has MAC addr = 00:d0:5c:20:2e:12




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