[mythtv-users] BBC HD mux switching to DVBS2. Help!!!!!!!

[Rob Muggridge]

On 06/06/2011 11:58, Rob Muggridge wrote:

> > On 6 June 2011 09:37, Ken Smith <kens at kensnet.org
> > However that didn't work.  Tried using the table
> > mythconverg.dtv_multiplex instead (which appears to be the "master"
> > data, rather what was found from the channel scans), changing the
> > following for mplexid = 127:
> > symbolrate: 23000000
> > fec: 8/9
> > mod_sys: DVB-S2
> >
> > restarted the backend and BBC HD/ BBC ONE HD started working.

Aghh! I can't get it to work. I tried a full scan. Then I tried a
> second full scan after deleting all my Capture cards and Video
> sources and starting again from scratch.
>
> Both those full scans were with:
>
> Freq: 10714000
> Polarity: Horizontal
> Symbol rate: 22000000
> Mod Sys: DVB-S
> FEC: 5/6
> Modulation: QPSK
> Inversion: leave at auto
> Rolloff: leave at 0.35
>
> which is my usual starting point for a full scan.  That gave
> me loads of channels, but no BBC HD or BBC 1 HD. Then I
> tried:
>
> Freq: 10788000
> Polarity: Vertical
> Symbol rate: 23000000
> Mod Sys: DVB-S"
> FEC: 8/9
> Modulation: QPSK
> Inversion: leave at auto
> Rolloff: leave at 0.35
>
> which gave me "Timed out, no signal". I have a Hauppauge Nova S2-HD.
> What am I doing wrong?
>
> Paul.
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>

Hi Paul,

Looks like you've solved the problem, the frequency was different.

FWIW:

mysql> select * from channel where name='BBC HD';
+--------+---------+--------+----------+----------+--------+--------------------------------------------+----------+--------------+---------+-------------+----------+------------+--------+-------+----------+---------+---------------+---------------+---------+-----------+----------+-----------------+-----------------+---------------------+-------------------+------------+
| chanid | channum | freqid | sourceid | callsign | name   |
icon                                       | finetune | videofilters |
xmltvid | recpriority | contrast | brightness | colour | hue   | tvformat |
visible | outputfilters | useonairguide | mplexid | serviceid | tmoffset |
atsc_major_chan | atsc_minor_chan | last_record         | default_authority
| commmethod |
+--------+---------+--------+----------+----------+--------+--------------------------------------------+----------+--------------+---------+-------------+----------+------------+--------+-------+----------+---------+---------------+---------------+---------+-----------+----------+-----------------+-----------------+---------------------+-------------------+------------+
|   7940 | 143     | NULL   |        1 | BBC HD   | BBC HD |
/mnt/library/images/channels/bbc_hd_uk.jpg |     NULL |
|         |           5 |    32768 |      32768 |  32768 | 32768 | Default
|       1 |               |             1 |     127 |      6940 |        0
|               0 |               0 | 2011-06-05 19:49:51 | fp.bbc.co.uk
|         -1 |
+--------+---------+--------+----------+----------+--------+--------------------------------------------+----------+--------------+---------+-------------+----------+------------+--------+-------+----------+---------+---------------+---------------+---------+-----------+----------+-----------------+-----------------+---------------------+-------------------+------------+
1 row in set (0.00 sec)


mysql> select * from dtv_multiplex where mplexid=127;
+---------+----------+-------------+-----------+-----------+-----------+------------+------+----------+------------+-----------+--------------+-------------------+----------------+---------+---------------+-----------+--------------+---------+---------+------------+----------------+---------------------+-------------------+
| mplexid | sourceid | transportid | networkid | frequency | inversion |
symbolrate | fec  | polarity | modulation | bandwidth | lp_code_rate |
transmission_mode | guard_interval | visible | constellation | hierarchy |
hp_code_rate | mod_sys | rolloff | sistandard | serviceversion |
updatetimestamp     | default_authority |
+---------+----------+-------------+-----------+-----------+-----------+------------+------+----------+------------+-----------+--------------+-------------------+----------------+---------+---------------+-----------+--------------+---------+---------+------------+----------------+---------------------+-------------------+
|     127 |        1 |        2050 |         2 |  10847000 | a         |
23000000 | 8/9  | v        | qpsk       | a         | auto         |
a                 | auto           |       0 | qpsk          | a         |
auto         | DVB-S2  | 0.35    | dvb        |             33 | 2010-01-25
14:02:36 |                   |
+---------+----------+-------------+-----------+-----------+-----------+------------+------+----------+------------+-----------+--------------+-------------------+----------------+---------+---------------+-----------+--------------+---------+---------+------------+----------------+---------------------+-------------------+

I cheated and manually updated the database with the new values, rather than
run a scan (and therefore risk having to do some tidying, I'll leave that
till next weekend).  Restarted the backend and it all worked....
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