[mythtv-users] Tuning problems

Damian myth at surr.co.uk
Tue Jan 1 19:52:59 UTC 2019

On 28/12/2018 22:04, John Pilkington wrote:
> On 28/12/2018 16:11, Damian wrote:
>> Hi all,
>> I've had tuning issues for months now, but we mainly watch downloaded 
>> content, so I've not worried too much about it.
>> However, there's not much point using MythTv without the TV bit! :-) 
>> And I know how great it can be when it's working, so I'd like to sort 
>> this out if I can.
>> Here's the issue ...
>> To keep things simple, I've got 2 SD tuner sticks installed at the 
>> moment. I've got a HD one waiting to be used too, but I'm not too 
>> worried about HD TV. I'd rather just get the 2 SD sticks working again.
>> I'm in the UK and should be (at least we used to be!) in the Mendip area.
>> Here are the details hoe how Mendip 'should' tune ...
>> https://ukfree.tv/transmitters/tv/Mendip
>> The settings are different to what they were a few years ago, but to 
>> me it looks like I the main channels are at 562000000Hz, 578000000Hz.
>> When I do a full scan, with MythTV, it gives me transports like ...
>> 698000000 Hz,
>> 738000000 Hz
>> 690000000 Hz
>> 721833330 Hz
>> Auto turn always results in finding channels, but they are 
>> temperamental and unreliable.
>> This wouldn't be a problem as MythTV always seemed to tune to the 
>> wrong transports. The problem is that if I edit the transports, like 
>> I have in the past, to mathc up frequencies, then the system fins 
>> nothing!
>> Back when things used to work, manually editing the transports would 
>> solve everything and I'd have rock solid tuning. however, that's not 
>> been the case for along time now.
>> Any ideas how to get to the bottom of this?
>> I should mention that if I need to go to the command line, my level 
>> is 'ls' and 'top'! :-) I can follow instructions, but have no idea 
>> what I'm doing in there.
>> One final thing to mention is a new error message that I'm noticing 
>> when I go into the Multiplex editor. It's stated saying:
>> "Sorry, the Transport Editor can only be used to edit transports 
>> which are connected to a card input."
>> However, it then seems to work fine.
>> Hope some of you geniuses can help! :-)
>> Cheers,
>> Damian
> Hi Damien:  This may help:
> https://www.a516digital.com/2018/02/freeview-frequency-changes-27th-feb-and.html 
> I don't know how authoritative it is, but it notes frequency changes 
> made at Mendip in February, although it doesn't look as if they 
> affected the main muxes. Last time I looked ukfree.tv hadn't caught up 
> with changes made at my local transmitter around that time.
> John P

Thanks for this John,

Although I don't understand it enough to know the implications :-)

I've just tested out an actual real TV, and it scanned all channels, so 
I assume Myth should be able to find them too.


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