[mythtv-users] Hauppauge WinTV-quadHD issues

[Klaas de Waal]

Assuming you are using v31 it is a good idea to create a new video source
and then do a new channel scan. The reason for this is that sometimes old
channel data prevents new data from being stored correctly. With a new
video source and a "Full Scan" it should just work.
There have been reports that it is needed to set the modulation type of
this type of tuner to DVB-T2 but this should be the default for a new
installation.

About the multirec, in the mythtv-setup page Input Connections /
Interactions between Inputs there is a "Schedule as Group" option. If this
option is checked, and it is by default on a new install, then multirec is
enabled. You can specify the initial amount of tuners (the first option)
but you can leave that at the default of 2.

For everything else you want to know about channel scanning you might want
to read Wiki page https://www.mythtv.org/wiki/Channel_Scanning

Klaas.


On Tue, 2 Feb 2021 at 22:32, John Pilkington <johnpilk222 at gmail.com> wrote:

> On 02/02/2021 20:47, John Pilkington wrote:
> > On 02/02/2021 19:50, Simon Hobson wrote:
> >> I've just pulled out my old HVR-1250 (IIRC) cards and replaced them
> >> with a new QuadHD card. It's working fine, giving me 4 tuners (and
> >> eliminating the recording errors due to poor signal*), but I've a
> >> couple of issues :
> >>
> >>
> >> I can't find where to configure multi-rec.
> >> That's one of those "so long sine I last did it, can't remember how I
> >> did it" things.
> >> According to
> >> https://www.mythtv.org/wiki/Record_multiple_channels_from_one_multiplex
> it's
> >> just a case of going into the advanced settings and setting the number
> >> of virtual tuners, and that's how I vaguely remember doing it. But
> >> it's just not there in my setup.
> >> It's shown as Silicon Labs Si2168 and subtype DVB-T2 - but no advanced
> >> settings option.
> >
> > mythtv-setup > Input connections > select device > interactions between
> > inputs > max recordings
> >>
> >>
> >> It's not finding any DVB-T2 muxes.
> >> I should be getting at least 1 T2 mux, according to
> >> https://ukfree.tv/transmitters/tv/Winter_Hill the PSB3/BBCB mux should
> >> be on 585.8MHz. It's not found by a full scan, nor by a "scan an
> >> existing transport and find any linked ones" option. I suspect Com7 on
> >> 746MHz will be out of band for my aerial so I'm not bothered about that.
> >>
> >>
> >> Any thoughts ?
> >>
> >> Simon
> >>
> >>
> >> * having two cards I needed to use a splitter - so lost a lot of
> >> signal strength. It was fine when I first set it up here, but has
> >> degraded to the point where I had to remove the splitter and disable
> >> one of the cards - thus hitting limitations with only one real tuner.
> >
> > Perhaps a bit late now, but a preamp before the splitter ought to
> > maintain the signal to noise ratio as well as boosting the level.  Newer
> > tuners do this on-chip.
> >
> > I forget which release you have been using, but a *lot* of work has gone
> > into DVB channel scanning recently.
> >
> > HTH
> >
> > John P
>
> And I ought to have picked up on your T2 query.  iirc the DVB-T2
> transports carry the links to DVB-T,  but there are no links to the
> DVB-T2 ones;  and in my experience the UK Free channel info has often
> not been kept up to date.  I have found the 'manual tuning' menu of my
> TV helpful in warning when a 'difficult' mux is undergoing maintenance;
> scanning in the evening has worked best.  Of course that will only work
> if Myth and your TV can receive simultaneously.
>
> https://www.cai.org.uk/index.php/contact/dtt-freeview-updates
>
>
>
>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://lists.mythtv.org/mailman/listinfo/mythtv-users
> http://wiki.mythtv.org/Mailing_List_etiquette
> MythTV Forums: https://forum.mythtv.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mythtv.org/pipermail/mythtv-users/attachments/20210202/e19ef822/attachment.htm>