Where can I find Tuned channels data file?

[Bobbybear]

Hi NVPR Support

I need to re-tune NVPR as Freeview in the UK are moving some of the popular channels again.
Retuning seems to be a bit a hassle for me, as I seem to have to tune into two or three stations to receive all the channels and then some stations tuned overwrite the stronger channels from other stations.
Therefore I want to backup my old tuner data "just in case", where can I find the file please.

It would be nice if NVPR would tune channels like my Panasonic and Samsung TV's.. These tune all channels on all stations and signals available and then sort them in channel order by signal strength, is that possible??

Many thanks
Bob

[Graham]

The data file is npvr.db3 and is described ...

http://www.nextpvr.com/nwiki/pmwiki.php?...alledParts

Nextpvr should be tuning the strongest source for each channel. What is actually happening when you retune?

[Lao Pan]

You need an up to date dvb-t tuning ini file for your Freeview transmitter - then it will only tune to those frequencies. If you let me know which transmitter it is, I'll do one for you.

[bgowland]

Retuning seems to be a bit a hassle for me, as I seem to have to tune into two or three stations to receive all the channels and then some stations tuned overwrite the stronger channels from other stations.

I don't understand this bit. Are you saying you can pick up Freeview from more than one transmitter?

[Lao Pan]

I don't understand this bit. Are you saying you can pick up Freeview from more than one transmitter?

Only if you do an "All Regions" Scan which some people have been doing when there is no up to date ini for their Transmitter - that is why I offered to look up the latest frequencies for his TX and make a new ini.

[bgowland]

Only if you do an "All Regions" Scan which some people have been doing when there is no up to date ini for their Transmitter - that is why I offered to look up the latest frequencies for his TX and make a new ini.

But a scan with npvr will only add channels from a MUX on a locked frequency and there shouldn't be any duplicate channels which is what Bob is implying. There can be odd cases where people live in "line of sight" of two transmitters which is why I asked - it's fairly rare though.

[Lao Pan]

But a scan with npvr will only add channels from a MUX on a locked frequency and there shouldn't be any duplicate channels which is what Bob is implying. There can be odd cases where people live in "line of sight" of two transmitters which is why I asked - it's fairly rare though.

Down in this neck of the woods we get a strong signal coming in the back of the aerial from Wales :eek: - and as most of the frequencies are lower down the spectrum, they get picked up first, so all the "proper" channels end up at the bottom of the list. There are quite a lot of areas in the country where there is overlap.

[Bobbybear]

Well guys
Thanks for your feedback,
I can receive signals from 3 or 4 transmitters in the UK Central list, but none of them give me a complete set of channels with strong signals, (don't ask me why but some transmitters do not even broadcast a full set of channels).
Today I re-tuned my DVB-T using "All Regions" I have then got duplicate (3 or 4 entries in some cases) channels in the list ITV1, E4, Film4, etc.
If I then go to Settings/Channels/Bulk Map/Auto Merge These of course become single entries, the only problem with this is not channels all merge and use the strongest signal (some break up when played).
My TV's can merge strongest channels without problems.
My current work round is to re-tune All Regions and then auto merge, then play all the channels in turn (111 of them) find out which work and which do not.
Then I re-tune all regions again, select the channels which are duplicated and try to play them, find out which seems to have the strongest signal and delete all the other entries, a bit of a pain, but after 2 hours effort I at least have a working setup again with the channels tuned to the best frequencies..
If only Auto Merge would work on strongest signal....

[johnsonx42]

NPVR doesn't do anything with signal strengths because there's no standard way for tuners to report it. Some tuners report signal from 0 to 100, others use negative numbers, some don't report at all or report the same signal strength for all signals. Plus even if tuners could be counted on to report accurate signal strength on a consistent scale, I suspect that the pool of NPVR users who would actually be helped by an "auto-merge by signal strength" feature would be relatively small and thus not worth sub's effort to implement.

[jcjefferies]

If you are getting signal from at least one Freview "Lite" transmitters have you checked if the aerial is pointing at one of the main transmitters which have all the mux. I was going to suggest that you write your own ini file so you select what you have found to be best mux but I think you would get better results optimising the aerial setup for somewhere like Sutton Coldfield. If your local transmitter does not broadcast the full set of muxes then you are probably on the fringe of the coverage of a main transmitter so may have to invest in a better aerial if you want the full set of channels or you could add a DVB-S card to supply some of the missing channels.