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[linux-dvb] Evil transmitters [was: New channels.conf file for Reigate UK]
On Sunday 11 May 2003 12:15 pm, Simeon Walker wrote:
> >BTW the scan program which comes with the drivers is a bit buggy.
> >First it only works on the first transponder it finds (it can't tune to
> > the other transponders) and secondly the frequency it dumps out are
> > simply wrong. You can use it to get the pids but you have to change the
> > freqs by hand.
>
> Are you sure it is the program? See the thread:
> 'Evil transmitters: a gotcha with the scan program (but not it's fault)'
> Does it sound like the same problem?
This are not evil transmitters. The scan program only takes the frequency
given in the Terrestrial_delivery_system_descriptor into account.
But this descriptor has a flag 'other_frequency_flag'. This flag indicates
that other frequencies are in use as well.
The scan program has to check all frequencies given in the
frequency_list_descriptor.
I have attached a (human readable) dump of the NIT taken from the Reigate
Transmitter. As you can see it is actually the NIT from Cristal Palace but it
lists all frequencies used by other transmitters broadcasting the same
Transport streams. The third frequency given in the frequency_list_descriptor
is the one used in Reigate.
Regards
Immo
Network Information Table (NIT):
table_id 0x40
section_syntax_indicator 1
section length 0x028a
id 0x3005
version number 0x06
current_next 0x01
section number 0x00
last section number 0x00
Name descriptor:
Crystal Palace
***** Transport Stream ******
TS ID 0x1004
Original Network ID 0x233a
Service List Descriptor:
Service ID 0x1044 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x1084 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x10ff -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x113f -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x117f -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x123f -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Trrestrial delivery system descriptor:
Frequency 50583333
Bandwidth BANDWIDTH_8_MHZ
Constellation QAM_16
Hierarchy HIERARCHY_NONE
Code rate HP FEC_2_3
Code rate LP FEC_2_3
Guard interval GUARD_INTERVAL_1_32
Transmission TRANSMISSION_MODE_2K
Other freq. yes
Frequency List Descriptor:
Coding: TERRESTRIAL
Frequency: 69783333
Frequency: 69016667
Frequency: 55400000
***** Transport Stream ******
TS ID 0x2005
Original Network ID 0x233a
Service List Descriptor:
Service ID 0x2045 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x2085 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x20c0 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x2145 -> Service Type 0x3 (TELETEXT_SERVICE)
Service ID 0x2185 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x2240 -> Service Type 0x3 (TELETEXT_SERVICE)
Service ID 0x2260 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Trrestrial delivery system descriptor:
Frequency 48183333
Bandwidth BANDWIDTH_8_MHZ
Constellation QAM_32
Hierarchy HIERARCHY_NONE
Code rate HP FEC_1_2
Code rate LP FEC_NONE
Guard interval GUARD_INTERVAL_1_32
Transmission TRANSMISSION_MODE_2K
Other freq. yes
Frequency List Descriptor:
Coding: TERRESTRIAL
Frequency: 65816667
Frequency: 74600000
Frequency: 47400000
***** Transport Stream ******
TS ID 0x3002
Original Network ID 0x233a
Service List Descriptor:
Service ID 0x3242 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x3340 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x3502 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x3540 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x3780 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x37c0 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x3800 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x3840 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x3880 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x38c0 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Trrestrial delivery system descriptor:
Frequency 56183333
Bandwidth BANDWIDTH_8_MHZ
Constellation QAM_32
Hierarchy HIERARCHY_NONE
Code rate HP FEC_1_2
Code rate LP FEC_NONE
Guard interval GUARD_INTERVAL_1_32
Transmission TRANSMISSION_MODE_2K
Other freq. yes
Frequency List Descriptor:
Coding: TERRESTRIAL
Frequency: 63416667
Frequency: 78616667
Frequency: 49800000
***** Transport Stream ******
TS ID 0x4000
Original Network ID 0x233a
Service List Descriptor:
Service ID 0x4180 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x41c0 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x4240 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x4600 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x4640 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x4680 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x46c0 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x4700 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x4740 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x4c00 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x4c40 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x4c80 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x4e00 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Trrestrial delivery system descriptor:
Frequency 52983333
Bandwidth BANDWIDTH_8_MHZ
Constellation QAM_16
Hierarchy HIERARCHY_NONE
Code rate HP FEC_2_3
Code rate LP FEC_2_3
Guard interval GUARD_INTERVAL_1_32
Transmission TRANSMISSION_MODE_2K
Other freq. yes
Frequency List Descriptor:
Coding: TERRESTRIAL
Frequency: 71416667
Frequency: 77783333
Frequency: 52200000
***** Transport Stream ******
TS ID 0x5000
Original Network ID 0x233a
Service List Descriptor:
Service ID 0x5640 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x5680 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x56c0 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x5700 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Trrestrial delivery system descriptor:
Frequency 57816667
Bandwidth BANDWIDTH_8_MHZ
Constellation QAM_16
Hierarchy HIERARCHY_NONE
Code rate HP FEC_2_3
Code rate LP FEC_2_3
Guard interval GUARD_INTERVAL_1_32
Transmission TRANSMISSION_MODE_2K
Other freq. yes
Frequency List Descriptor:
Coding: TERRESTRIAL
Frequency: 68216667
Frequency: 80200000
Frequency: 61816667
***** Transport Stream ******
TS ID 0x6000
Original Network ID 0x233a
Service List Descriptor:
Service ID 0x6440 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x6480 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x64c0 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x6500 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x6540 -> Service Type 0x1 (DIGITAL_TV_SERVICE)
Service ID 0x6640 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x6680 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x66c0 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x6700 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x6740 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Service ID 0x6780 -> Service Type 0x2 (DIGITAT_RADIO_SERVICE)
Trrestrial delivery system descriptor:
Frequency 53783333
Bandwidth BANDWIDTH_8_MHZ
Constellation QAM_16
Hierarchy HIERARCHY_NONE
Code rate HP FEC_2_3
Code rate LP FEC_2_3
Guard interval GUARD_INTERVAL_1_32
Transmission TRANSMISSION_MODE_2K
Other freq. yes
Frequency List Descriptor:
Coding: TERRESTRIAL
Frequency: 73800000
Frequency: 82600000
Frequency: 83400000
>
> Simeon
>
> >Regards
> >
> >Immo
> >
> >
> >
> >------------------------------------------------------------------------
> >
> >BBC
> > ONE:554000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_64:TRANS
> >MISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:600:601 BBC
> > TWO:554000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_64:TRANS
> >MISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:610:611 ITV
> > 1:474000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRANSMI
> >SSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:512:650 Channel
> > 4:474000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRANSMI
> >SSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:2827:2828
> > five:498000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRAN
> >SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:6017:6018 ITV
> > 2:474000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRANSMI
> >SSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:2818:2819 BBC
> > THREE:554000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRA
> >NSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0
> > Teletext:474000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:
> >TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0 BBC
> > FOUR:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRAN
> >SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0 Sky
> > Travel:618166666:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TR
> >ANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:301:302
> > UKHistory:618166666:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16
> >:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:401:402 Ch
> > 14:474000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRANSM
> >ISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:2840:2841 Ch
> > 15:498000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRANSM
> >ISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:660
> > QVC:498000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRANS
> >MISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:6049:6050 TV Travel
> > Shop:498000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRAN
> >SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:6161:6162 The
> > HITS:834000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRAN
> >SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:101:102
> > UKBrightIdeas:834000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QA
> >M_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:301:302 f
> > tn:834000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSM
> >ISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0
> > TMF:834000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANS
> >MISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:201:202
> > bid-up.tv:498000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64
> >:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:6273:6274
> > CBM:834000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANS
> >MISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:501:502 CBBC
> > Channel:554000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:T
> >RANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:620:621
> > CBeebies:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:
> >TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:201:401 BBC NEWS
> > 24:554000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSM
> >ISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:640:641 ITV
> > News:474000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRAN
> >SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:2850:2851 Sky
> > News:618166666:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRAN
> >SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:101:102 Sky Spts
> > News:618166666:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRAN
> >SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:201:202 BBC
> > PARLMNT:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:T
> >RANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:403
> > Community:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16
> >:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0
> > FourText:474000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:
> >TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0
> > BBCi:554000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRAN
> >SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0
> > ntl:498000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRANS
> >MISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0 BBC Radio
> > 1:498000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRANSMI
> >SSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:6210 1Xtra
> > BBC:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANS
> >MISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:434 BBC Radio
> > 2:498000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRANSMI
> >SSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:6226 BBC Radio
> > 3:498000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRANSMI
> >SSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:6242 BBC Radio
> > 4:498000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_1_2:FEC_NONE:QAM_64:TRANSMI
> >SSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:6258 BBC R5
> > Live:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRAN
> >SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:430 BBC 5L
> > SportsX:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:T
> >RANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:431 BBC 6
> > Music:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRA
> >NSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:432 BBC
> > 7:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMI
> >SSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:433 BBC Asian
> > Net.:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRAN
> >SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:435 BBC World
> > Sv.:834000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANS
> >MISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:1601 Smash
> > Hits!:834000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRA
> >NSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:1201
> > Kiss:834000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRAN
> >SMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:1101
> > Kerrang!:834000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:
> >TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:1301 jazz
> > fm:834000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSM
> >ISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:1401
> > oneword:834000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:T
> >RANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:1501
> > 701:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANS
> >MISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:203:407
> > 702:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANS
> >MISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:204:411
> > 703:522000000:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANS
> >MISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0
>
> --
> Simeon Walker, email: simeon@sbs.bangor.ac.uk
> School of Biological Sciences, phone: +44 (0)1248 383702
> University of Wales, Bangor, fax: +44 (0)1248 382569
> Gwynedd, LL57 2UW, UK. www: http://biology.bangor.ac.uk/
--
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