[mythtv-users] UK: Problems tuning Hauppauge NOVA-T500 (DSO related?)

Gavin Whitehead gavin at alabastercranium.demon.co.uk
Sun Jan 22 20:51:27 UTC 2012


On 15/01/2012 21:21, Gavin Whitehead wrote:
> Hi,
>
> I'm in the process of building my first MythTV box and I am currently
> testing my tuner cards.  I'm having trouble getting my Hauppauge WinTV
> NOVA-T-500 to tune to the DVT-B channels (Sandy Heath transmitter in the
> UK).
> I am running the command scan command (from dvb-apps) on my Ubuntu 11.10 box
>
>       scan -a 0 -x 0 /usr/share/dvb/dvb-t/uk-SandyHeath | tee nova-t.txt
>
> The output is as follows:
>
> gavin at mc03:~/dvb$ scan -a 0 -x 0 /usr/share/dvb/dvb-t/uk-SandyHeath |
> tee nova-t-500.txt
> scanning /usr/share/dvb/dvb-t/uk-SandyHeath
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> initial transponder 641833000 0 3 9 1 0 0 0
> initial transponder 665833000 0 2 9 3 0 0 0
> initial transponder 650167000 0 2 9 3 0 0 0
> initial transponder 842000000 0 3 9 1 0 0 0
> initial transponder 626167000 0 3 9 1 0 0 0
> initial transponder 674167000 0 3 9 1 0 0 0
>   >>>  tune to:
> 641833000: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:
> 641833000: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!!!
>   >>>  tune to:
> 665833000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
> WARNING:>>>  tuning failed!!!
>   >>>  tune to:
> 665833000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
> (tuning failed)
> WARNING:>>>  tuning failed!!!
>   >>>  tune to:
> 650167000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
> WARNING:>>>  tuning failed!!!
>   >>>  tune to:
> 650167000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
> (tuning failed)
> WARNING:>>>  tuning failed!!!
>   >>>  tune to:
> 842000000: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:
> 842000000: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!!!
>   >>>  tune to:
> 626167000: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:
> 626167000: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!!!
>   >>>  tune to:
> 674167000: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:
> 674167000: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.
>
>
> And the 'uk-Sandyheath' file looks like this.
>
>
> # UK, Sandy Heath
> # Auto-generated from http://www.dtg.org.uk/retailer/dtt_channels.html
> # and http://www.ofcom.org.uk/static/reception_advice/index.asp.html
> # T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
> T 641833000 8MHz 3/4 NONE QAM16 2k 1/32 NONE
> T 665833000 8MHz 2/3 NONE QAM64 2k 1/32 NONE
> T 650167000 8MHz 2/3 NONE QAM64 2k 1/32 NONE
> T 842000000 8MHz 3/4 NONE QAM16 2k 1/32 NONE
> T 626167000 8MHz 3/4 NONE QAM16 2k 1/32 NONE
> T 674167000 8MHz 3/4 NONE QAM16 2k 1/32 NONE
>
>
> My machine is currently dual boot.  If I boot it in to Win XP I can run
> up the Hauppauge WinTV application, scan for and find the channels, and
> watch TV.  So I'm pretty sure the NOVA-T-500 card is working and my
> cabling is OK.
>
> I had noticed that the 'dvb-apps' package hasn't been updated in a
> while.  Does anyone know if the values in the 'uk-Sandyheath' file are
> valid post DSO?  Or any other clues as to why this isn't working?
>
> Gav
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> mythtv-users at mythtv.org
> http://www.mythtv.org/mailman/listinfo/mythtv-users
Well folks, I seem to have made some progress.  Following advice/help on 
this thread I have crafted a new 'uk-Sandyheath' file which looks like this


T 522000000 8MHz 2/3 NONE QAM64 8k 1/32 NONE
T 498000000 8MHz 2/3 NONE QAM64 8k 1/32 NONE
#T 474200000 8MHz 2/3 NONE QAM256 32ke 1/128 NONE
T 714000000 8MHz 2/3 NONE QAM64 8k 1/32 NONE
T 722000000 8MHz 2/3 NONE QAM64 8k 1/32 NONE
T 690000000 8MHz 3/4 NONE QAM64 8k 1/32 NONE

and when I run 'scan' against this configuration I get 110 DVB-T 
channels.  I have commented out the DVB-T2 frequency as my tuner is only 
DVB-T.  I have tested the resulting 'channels.conf' file with VLC and I 
can actually watch TV now!  So on to the next challenge.  DVB-S2.  After 
that maybe I can actually get MythTV installed.

Thanks for the help,

Gavin


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