[mythtv-users] Issues with 4Seven on Freesat...

[Ian Wilkinson]

On 09/08/2012 19:32, Robert Longbottom wrote:
> On 09/08/2012 17:36, Ian Wilkinson wrote:
>> On 08/08/2012 18:04, Robert Longbottom wrote:
>>>
>>> On 7 Aug 2012, at 08:43 PM, Ian Wilkinson <null at sgtwilko.f9.co.uk>
>>> wrote:
>>>
>>>> Hiya,
>>>>
>>>> Is anyone else having issues receiving the channel 4Seven on Freesat?
>>>>
>>>> The channel tunes in fine, but after a second or two the picture
>>>> breaks
>>>> up.  It then stabilises for a few seconds then breaks up again.
>>>>
>>>> I'm running Mythbuntu 10.04, 0.24-fixes, on an ION board with a TBS
>>>> 6891.
>>>>
>>> Hi,
>>>
>>> Yes, I see exactly the same thing. I've just tried to find 4seven on
>>> my set top box but it seems I don't have it tuned in despite having
>>> done a full rescan last weekend. I wondered if it was a general
>>> issue with signal strength. I'll try to tune it in tomorrow maybe
>>> and see if it works on there.
>>>
>>> All my other sat channels work fine though, so I can't really
>>> believe it is a signal issue.
>>>
>>> Rob.
>>> _______________________________________________
>>>
>> Hi Rob,
>>
>>  From my checking in my Myth DB, it would seem like it's on the same Mux
>> (is it a Mux when it's from satellite?) as channel 4 HD which I receive
>> fine (apart from lip sync being ever so slightly out).  LyngSat and King
>> of Sat also agree and the settings they're showing match my Myth DB.
>>
>> Are you also on 0.24-fixes?
>>
>> Ian.
>
> I'm using v0.25.1-58-g1d41f74
>
> dtv_multiplex contains this data (used for 4seven and for C4HD)
>
> *************************** 1. row ***************************
>           mplexid: 44
>          sourceid: 1
>       transportid: 2068
>         networkid: 2
>         frequency: 11126000
>         inversion: a
>        symbolrate: 22000000
>               fec: 2/3
>          polarity: v
>        modulation: 8psk
>         bandwidth: NULL
>      lp_code_rate: NULL
> transmission_mode: NULL
>    guard_interval: NULL
>           visible: 0
>     constellation: NULL
>         hierarchy: NULL
>      hp_code_rate: NULL
>           mod_sys: DVB-S
>           rolloff: NULL
>        sistandard: dvb
>    serviceversion: 13
>   updatetimestamp: 2011-11-23 20:08:50
> default_authority:
>
> According to lynsat, the fex should be 5/6, so I changed that, but it
> hasn't made any difference.  I still get picture breakup.  In fact it
> seems a bit worse since I changed the fec....
>
> For some reason I can't get my STB to tune in any TV channels on that
> transponder - it's not HD capable, but I'd still expect it to pickup
> 4seven.
>
> C4HD works fine (before and after changing the fec).
>
> Most odd.
>
> Rob.
>

Hi Rob,

I had thought this Mux was DVB-S2, but both LyngSat and King of Sat
disagree, so I'm also stumped as to why your STB won't tune it in. 
Maybe there is something wrong with the transmitted data.

I will check these against my settings when I get home.

It would be interesting to compare these to a working setup.


Ian.