[mythtv-users] mythTV can't tune channel 56_1 in Boston, but TV and HDHomeRun app can

[Michael T. Dean]

On 02/24/2018 10:56 PM, glen wrote:
> On Sun, 2018-02-25 at 03:15 +0000, Ken Yee wrote:
>> Having a quirk w/ the HDHR5 tuner or some weird MythTV quirk w/ it.
>> When I tell MythTV to tune to channel 56_1 in Boston, it claims it 
>> only has 6% signal and can't get a lock.
>>
>> Using the HDHomeRun app on Android to connect to the tuner has no 
>> problems viewing that channel.
>> The TV using the same cable claims signal strength is 80-88% of 88 
>> (Sharp TV has a signal debug mode that shows signal strength)
>>
>> Anyone ever see this quirk and have a workaround?
>> I've tried running channel scan on all the tuners and rebooted the 
>> Mythbuntu server to make sure...downloaded all updates too...
>>
>>  ken
>>
>> <https://forum.mythtv.org%0A>
>
> why don't you use the hdhomerun config utility and see what the tuner 
> is actually doing when myth is tuning the channel. in case you have no 
> other computer, on android it is hdhomerun signal meter app. several 
> versions back i had similar issue and had to go into database and 
> correct the record but that was on clear qam. also try deleting the 
> channel and go into setup and do scan but limit the scan to scan 
> between channels 55 and 57 and see it finds the channel and then add it.

And, you may need to increase your tuning and signal timeouts--usually 
significantly.

Mike