Where can I find Tuned channels data file?

[Bobbybear]

Hi Guys
Thanks for your continued help and information,
To answer jcjefferies comments above, I have had a new quality DVB-T aerial fitted and I only live less than 1Km away from the Central Regions Brierley Hill Transmitter, but when I try to tune NVPR to this transmitter it only seems to pick up half a dozen channels although, it is a sub transmitter of the main Sutton Coldfield transmitter and according to the internet information it broadcasts a full set of channels.
I also live on the fringes of at least four other transmitters which all reproduce the signals sent from Sutton Coldfield... Sutton Coldfield is out of my aerials line of sight so I can find some channels from Lark Stoke, Bromsgrove, The Wrekin and Ridge Hill all with varying signal strengths...
Yes I also have a DVB-S card fitted for HD channels, it does have the other channels signals but can only receive one channel at a time not much good if you want to watch/record 2 or 3 channels at the same time.

[Lao Pan]

The only thing I can think of is that both of these Transmitters have offset frequencies. I know my Compro Tuner will not scan for offsets even when the box is ticked in NPVR - when we had offsets here I had to put the exact frequency in the ini file to get a decent picture.

Attached are ini files for the Brierley Hill Transmitter and Wrekin Transmitter with Exact Frequencies for the offsets.
They will scan PSB1, PSB2, Com4, Com5, Com6, PSB3 (HD) in that order (not frequency order) - the Brierley Hill ini has the LC mux at the end which starts transmitting in January 2014.

One thought Bob - if you are that close to the transmitter and you have a good aerial - it is possible the signal is too strong and overloading the tuner.

[jcjefferies]

Brierly Hill unlike most "fill in" transmitters does have a full set of muxes and at 2KW is a reasonable power especially at only 1km range. It is difficult with a digital tuner to work out if the signal is weak or too strong as they just generate some number for signal strength.

Also you havnt mentioned which transmitter your new aerial is pointed at and which polarisation as Brierly Hill is vertical and Sutton Colefield and The Wrekin are horizontal and using the wrong polarisation can cause a considerable loss of signal level.

My local transmitter is Ridge Hill and the two lowest muxes use +ofsets but have never bothered to set them and have not seen any problems.

[Croftie]

Thank you for the Wrekin ini Lao.

[Bobbybear]

Thanks Lao Pan for the new Brierley Hill .ini file I will give it a try
I have an Hauppauge Dual DVB-T tuner card which has never let me down, and it set to tune all frequency offsets.
The aerial is pointing at Central - Brierley Hill and set set vertical as this is a relay transmitter, as are neighbors with DVB-T aerials pointed at this same transmitter.
After doing an all regions all frequencies scan and sorting out all the channels and making sure that they all work with a good reliable signal;
My line up looks like this
706000
778000
746000
762000
786000
490000 (not on the Brierley Hill .ini list!!)
There is nothing on frequency 730000, but there are a number of channels on 490000 namely C4, C4+1, C5, ITV2, More4, E4 and Film 4.
More4, E4 and Film 4 will not receive a reliable signal except on this frequency, I'm not sure which transmitter this frequency comes from.
Now I'm guessing the best way forward is to edit the Brierley Hill.ini file to add in the 490000 frequency and the 538000 LC mux frequency to future proof it and then save it as 'United Kingdom - Central - Brierley Hill-Bob'.ini.
Your comments on this approach would be appreciated.
Or should I use Lao Pan's .ini file of actual frequencies and add in the 490000 frequency
785800
762200
706000
777800
746000
730000
538000
490000
Again your comments please.

Many thanks for all your support and assistance
Bob

[Lao Pan]

Bob Just some info for you.
Channel 53 (730000) is the DVB-T2 (HD) frequency so you will not get anything unless you have a T2 Tuner.

Channel 23 (490000) - You are most likely getting from the Bromsgrove Tx (Vertical) or less likely the Wrekin TX (Horizontal) both have the PBS2 mux on that channel. You should be getting this on Channel 57+ (762200) but if you do an all frequencies scan C23 will populate first.

As far as I am know - from this forum - Hauppauge cards should scan for offsets.

Thoughts on why you are not getting a better signal on the local Transmitter are
- aerial not exactly pointing at the transmitter
- too strong a signal (could try an attenuator)
- Mobile phone interference 4G (Filters are now available)
- Interference from Great Malvern or Kenilworth Transmitters

[jcjefferies]

If you look at the link below you can see that channel 23 (490MHZ) is used by The Wrekin, Bromsgrove as has been said but there is also Lark Stoke which almost covers the Brierly Hill area. If you zoom in and click on each transmitter you can see the area covered by each. Which one you are receiving could depend on the direction the aerial is pointing.

http://www.ukfree.tv/mapsofsignal.php?c=23

Selecting a different channel you may be having a problem with could help show where co channel could be coming from.

[Bobbybear]

I have completed a test this morning.
Using the Brierley Hill (Offset).ini supplied by Lao Pan I have completed a scan of the local transmitter and received signals for all channels plus some spurious ones that either have no playable signal or somehow are a duplicate of other channels with less than perfect signal strength, but with a bit of sorting I have it working well now and looking at the information on the internet http://www.ukfree.tv/txdetail.php?a=SO916856 this should be fixed for at least the near future.
Thanks for everyone's help with this case
I guess we can call it closed now.
Bob