[mythtv-users] one recording keeps failing

[Michael Watson]

On 2/09/2014 9:02 PM, Vincent McIntyre wrote:
> On Tue, Sep 02, 2014 at 12:57:36AM +1000, blind Pete wrote:
>> On Tue, 02 Sep 2014 00:18:49 +1000
>> Michael Watson <michael at thewatsonfamily.id.au> wrote:
>>
>>> On 7/08/2014 11:07 PM, Vincent McIntyre wrote:
>>>> Greetings mythizens,
>>>>
>>>> I have a strange issue that I wanted to report in case it is a bug.
>>>> The system is mythbuntu 12.04 LTS with 0.27-fixes, all up to date.
>>>> There is one tuner card with two tuners. myth is configured with
>>>> one additional virtual tuner per physical tuner, so 'Tuner Status'
>>>> lists four tuners.
>>>>
>>>> The symptom is that one particular program appears to start
>>>> recording just fine but at the end of the scheduled recording time
>>>> is marked as failed. I get a zero-length file displayed in the list
>>>> of recordings. The show in question is a news broadcast, at the
>>>> same time each day (1900-1935). More mysteriously, the recording
>>>> sometimes 'works'.
>>> Reception issue?  One tuner is possibly "better" than the other.
>> [snip]
>>
>> On a single dual tuner card?  It is possible that one is broken, or
>> that the signal splitter is uneven.  If the antenna connections are
>> swapped does the unreliable tuner move?
>>
> The card has only one antenna connection.
> I had the antenna tested and a couple of months ago and the masthead
> amplifier was replaced and a new power injector installed. The signal
> strength (according to a proper DTV signal analyser) is decent but
> not 'perfect'.
>
>
Most (if not all) dual tuners have two separate tuners on board, and an 
internal splitter.  It is very possible that one tuner loose sensitivity 
over time.
In Melbourne area, whenever I have tuning issues, it always starts with 
ABC, then SBS, then Nine  (gets very windy here, and the antenna gets 
damaged from the winds from time to time)