[mythtv-users] UK DVB-T Mendip Tuning Fails with Error: Wrong PMT

Nigel Jewell nige at grufty.co.uk
Wed Jul 6 21:59:07 UTC 2011


Hi,

Alex - thanks for your reply.

On 06/07/2011 21:23, Alex Butcher wrote:
> On Wed, 6 Jul 2011, Nigel Jewell wrote:
>
>> Using dvbscan as:
>>
>> /usr/bin/scandvb -u -vvv uk-Mendip
> The tuning files aren't being kept up-to-date, in my experience.

Sure - I appreciate that, I'm using the following which I've hand 
crafted using the ofcom detail from:

http://stakeholders.ofcom.org.uk/binaries/broadcast/guidance/tech-guidance/West.pdf 


Which is (without the HD multiplex which I can't use):

T 794000000 8MHz 2/3 1/2 QAM64 8k 1/32 NONE
T 738000000 8MHz 2/3 1/2 QAM64 8k 1/32 NONE
T 802167000 8MHz 2/3 1/2 QAM64 8k 1/32 NONE
T 754167000 8MHz 2/3 1/2 QAM64 8k 1/32 NONE
T 842000000 8MHz 3/4 3/4 QAM16 2k 1/32 NONE

There are some differences with yours and so I'll try that tomorrow, but 
from my limited understanding I believe that dvbscan just uses it as a 
starting point anyway (but I'm happy to be corrected!).

>
> You will need to adjust the contents of your dtv_multiplex table.
>
> MythTV doesn't (as far as I know) use the 'seed' files under
> /usr/share/dvb-apps/. Instead, it scans the entire spectrum and tries to
> fill in the parameters automatically.  Furthermore, I had difficulties 
> with
> it losing multiplexes with some of those parameters set to auto, so I 
> used
> the digitaluk and ukfree.tv data to fill in my dtv_multiplex table as per
> <http://pastebin.com/raw.php?i=WqmtTJW4>.

Understood - and I do the same already based upon the output of dvbscan.

> Note that you will need to make further changes to the dtv_multiplex 
> table
> (and /usr/share/dvb-apps/dvb-t/uk-Mendip, if you use it with other
> applications) on both 28 September 2011 and 28 March 2012, so put these
> dates in your diary now.

Already there

Thanks again - based upon the info you've supplied I'll try some of your 
settings and verify the configuration information I have to try and find 
the oddity.  I'll send an update with my findings ...

Regards,
Nige.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.mythtv.org/pipermail/mythtv-users/attachments/20110706/879b1d20/attachment.html 


More information about the mythtv-users mailing list