[linux-dvb] HDTV tuning.

Mario Rossi mariofutire at googlemail.com
Tue Sep 26 21:03:47 CEST 2006


Hi

how should I interpret the output of scan, trying to scan for HDTV in London?

initial scan file

T 554000000 8MHz 2/3 2/3  QAM64  8k 1/32 NONE

(I had found those values in this mailing list some months ago)

output:

scanning /opt/dvb/uk-CrystalPalace
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder 554000000 0 2 2 3 1 0 0
>>> tune to: 554000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
>>> tuning status == 0x0f
>>> tuning status == 0x1f
PAT
PMT 0x0258 for service 0x9044
SDT (actual TS)
0x0000 0x9044: pmt_pid 0x0258 BBC -- BBC HD1 (running)
NIT (actual TS)
Network Name 'Crystal Palace B'
>>> 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
>>> tuning status == 0x07
>>> tuning status == 0x1f
PAT
PMT 0x0258 for service 0x9044
SDT (actual TS)
0x9004 0x9044: pmt_pid 0x0258 BBC -- BBC HD1 (running)
NIT (actual TS)
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
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
WARNING: >>> tuning failed!!!
>>> tune to: 522167000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QPSK:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
(tuning failed)
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
>>> tuning status == 0x05
WARNING: >>> tuning failed!!!
dumping lists (2 services)
BBC HD1:554000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0:36932
BBC HD1:554167000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0:36932
Done.

Whet it says "WARNING: tuning failed" what does it mean?
Where does it get the frequency 522167000?
If it is given by the initial trasponder, why is it empty?



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