[mythtvnz] DVB-T mux A errors

[Guy Gibson]

Well after a rebuild last night I have mux A errors again with the  
initial channel scan.  Now as I had all channels before the rebuild I  
believe I can rule out Antenna issues.  I made sure I had the LNA  
turned on before doing the first scan and still it failed to find the  
first mux, and the 3rd on one occasion.

Work calls so will have another go tonight.


On 30/03/2009, at 11:04 PM, Steve V wrote:

>
>
> From: Steven Ellis <steven at openmedia.co.nz>
> To: MythTV in NZ <mythtvnz at lists.linuxnut.co.nz>
> Sent: Monday, 30 March, 2009 9:25:31 AM
> Subject: Re: [mythtvnz] DVB-T mux A errors
>
>
> On 30/03/2009, at 8:55 AM, Steve V wrote:
>
>> I think it happened because the first time I scanned for channels I  
>> hadn't turned on the LNA (Low Noise Amplifier?) for the NOVA-T 500.  
>> Without the LNA active the other 2 muxes tune in fine but Mux A  
>> does not. I am guessing that this put corrupt info into the  
>> database and subsequent retries will not overwrite the old info -  
>> just a guess.
>>
>> It will be interesting to see if manually changing the data in the  
>> database will fix the problem - I really don't want to rebuild it  
>> again.
>>
>> From: Guy Gibson <ggibson at orcon.net.nz>
>> To: MythTV in NZ <mythtvnz at lists.linuxnut.co.nz>
>> Sent: Monday, 30 March, 2009 8:05:24 AM
>> Subject: Re: [mythtvnz] DVB-T mux A errors
>>
>> Only to say steve I've had exactly the same issue before, about 4  
>> weeks ago.  I thought it might have been lower signal strength, on  
>> the A mux, but boosting the signal made no difference.  I tried  
>> lots of things and rescans etc but to no avail. In the end I  
>> rebuilt the box again and it disappeared.
>>
>> Guy
>>
>
> I recommend deleting all of your DVB multiplexes from the Transport  
> Editor, and then searching channels on each one manually. As you  
> perform each search re-enter the Transport Editor screen screen to  
> make sure that the correct values have been loaded for each multiplec.
>
> This is a reference for DVB-S but should apply for DVB-T
>
> http://support.mypvr.co..nz/mypvr/?page_id=24
>
> I've found in auckland that MythTV sometimes puts the  wrong  
> information in the database.
>
> Steve
>
>
> Steven Ellis - Technical Director
> OpenMedia Limited
> email   - steven at openmedia.co.nz
> website - http://www.openmedia.co.nz
>
> Thanks Steven,
>
> your advice was right on track, I only had to delete the corrupt  
> multiplex using the transport editor then a rescan of channels and  
> it was fixed.
>
>
> Cheers
>
> Steve
>
> Get fit, feel better! All the help you need at Yahoo!Xtra  
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