[mythtv-users] UK Freeview scanning broken?

Mike Holden mikeholden99+mythtv at gmail.com
Fri Mar 24 02:39:49 UTC 2017


On 24 March 2017 at 13:30, Another Sillyname <anothersname at googlemail.com>
wrote:

> Which transmitter?
>
> On 24 March 2017 at 01:44, Justin Hornsby <justin0hornsby at gmail.com>
> wrote:
> > I've had cause to rescan tonight so we can continue to use the channel
> 'Tiny
> > Pop' which my kids seem to have grown accustomed to.
> >
> > So off I went into mythtv-setup, stopped mythbackend, yada yada.. so far
> so
> > good right?
> >
> > Until the scanner found umpteen dozen channels I never had before - all
> with
> > the wrong channel numbers.  I deleted all the channels & tried a full
> scan.
> > Again, BBC ONE etc all had completely meaningless channel numbers - not
> the
> > LCNs you'd expect of Freeview channels. BBC ONE NE&C came out with a
> channum
> > of 4169 instead of 1 for example.
> >
> > So then I went & cleaned out everything from the database to do with
> channel
> > storage (naughty) - and did a full scan again.  Same story.
> >
> > The dvb 'scan' (not dvbscan) utility came up trumps but of course doesn't
> > seem to output LCNs.
> >
> > Has something changed radically with Freeview lately that might have
> broken
> > myth's scanning?  I'm very out of touch with how DVB scanning works in
> the
> > program these days - is there a fixup needed?  Would posting dvb stream
> > dumps help?  My TV, FWIW, manages to scan channels just fine so I don't
> > think the local transmitter is borked.
> >
> > Anyone have any ideas what's up?
>

Sounds like you may be hitting multiple transmitters.

You can refine the scan that Mythtv does, but you need to know the
frequencies ("transports") that your preferred transmitter uses.
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