[mythtv-users] Fail to tune channels in UK using Rowridgetransmitter
mythtv at fsmail.net
Sat Jan 14 10:17:32 UTC 2006
Message Received: Jan 09 2006, 09:05 AM
From: "David Watkins" <watkinshome at gmail.com>
To: mythtv at fsmail.net, "Discussion about mythtv" <mythtv-users at mythtv.org>
Subject: Re: [mythtv-users] Fail to tune channels in UK using Rowridgetransmitter
On 08/01/06, Myth TV <mythtv at fsmail.net> wrote:
> Message Received: Jan 08 2006, 11:00 AM
> From: "Steve Daniels" <steve.p.daniels at googlemail.com>
> To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> Subject: Re: [mythtv-users] Fail to tune channels in UK using Rowridgetransmitter
> ----- Original Message -----
> From: "Myth TV" <mythtv at fsmail.net>
> To: "mythtv-users" <mythtv-users at mythtv.org>
> Sent: Sunday, January 08, 2006 9:33 AM
> Subject: [mythtv-users] Fail to tune channels in UK using
> > However I am unable to tune it to any channel at all.
> > I have checked the card and reception using the dvb-utils and dvbstream.
> > I have managed to get all 85 Freeview channels information using the
> > command :-
> > # scan -u /usr/share/doc/dvb-utils/examples/scan/dvb-t/uk-Rowridge
> > >.tzap/channels.conf
> > and example of the BBC1 channel information I got is in the attached file.
> > I am then able to use the following commands to watch BBC1 channel using
> > the dvbstream :-
> > # tzap -r "BBC ONE"
> > # dvbstream -o -ps 600 601 -qam 16 -cr 3_4 | xine stdin://mpeg2
> > When trying to tune to BBC1 using the frequency tested under tzap/dvbsteam
> > of 489833330 I still get nothing. I get the same if I try to use the Full
> > Scan option.
> > Can someone please help me with the tuning of my card.
> I assume your running the latest *stable* mythtv. When you say "When trying
> to tune to BBC1 using the frequency tested under tzap/dvbsteam of 489833330
> I still get nothing" Where did you put this frequency? From looking at your
> attachments, if you didn't do so already you want to create a new transport
> with the following details:
> Standard: DVB
> Frequency: 489833330
> Bandwidth: 8 MHz
> Inversion: Auto
> Constellation: QAM 16
> LP Coderate: Auto (I never bothered figuring out which was which out of
> these two so just left em at auto)
> HP Coderate: Auto
> Trans. Mode: 2K
> Gaurd Interval: 1/32
> Hierachy: None
> But I had to set up ALL of my 6 transports for WinterHill manually. The
> above will only give you BBC channels if the scan works.
> [ (no name for attachment) (0.2 Kb) ]
> Thanks for the pointers.
> I was using the default 'auto' for the other parameters apart from the frequency setting. Now reset all according to the channels.conf generated from the tzap I am able to see that scanning for all channels does return all the desired channels.
> However I am still not able to watch tv.
> The front end reported that it took long to be allowed to read ...
> whilst the backend log reported that it could not find tuning parameters for transport 0.
> In my mythtv-setup I did not have a transport 0
> I have set up transport for each of the frequency deleted in my channels.conf. e.g.
> Please see attached files showing the frontend and backend outputs.
> Is there something else I should be setting that I am not aware of ?
>I've seen that No PIDS set message from time to time when I've been
>fiddling with my channel setup. I think it's related to the starting
>channel - ie the channel that mythtv initially tunes to. As I
>understand, if this channel is incorrectly setup, or not broadcasting
>at the time, then mythtv fails rather ungraciously. You can fiddle
>around with the starting channel using the channel editor but I've
>never been very successful with making this work - for some reason the
>change doesn't alway stick.
> My advice would be to delete all your channels (by letting mythtvsetup
> remove them as it starts) and redoing the auto scan.
> BTW you can get the exact parameters for your transmitter for the
> autoscan from the channels.conf file the tzap produced just look
> across the row for BBC1. I only had to do a single scan for the
> Crystal Palace transmitter, to get all available channels, and More4
> and ITV4 added themselves automatically,without scanning, when they
> came online. YMMV.
> Hope this helps.
That did the trick.
I deleted all the channels and configured
3. Video sources
4. Input connections
5. Channel Editor
and I was then able to watch all TV and record, etc.
Thank you for the help.
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