[mythtv-users] Copying channel definitions from one instance of MythTV to another

[Simon Hobson]

Mike Perkins <mikep at randomtraveller.org.uk> wrote:

> Yup. My local is Hannington (8 miles) but I can also see Crystal Palace and Oxford.
> 
> I thought about sourcing a bandpass filter but there is almost an overlap between the Hannington (50) and Crystal Palace (51) ranges and I don't think they make filters that sharp.

Not a chance, or at least, not at a price anyone would want to pay !

> My procedure is:
> 
> . Do a full scan. Use the internet to find out my local frequencies (and what's on them).

http://www.ukfree.tv/transmitters/tv/Hannington
http://www.ukfree.tv/transmitters/tv/Crystal_Palace
http://www.ukfree.tv/transmitters/tv/Oxford

> 
> . Delete all transports but one from the transmitter you want.
> 
> . Delete all remaining channels from the channel table so there is no possibility of duplicates. Very occasionally I get channels with weird numbers when they are present on all three transmitters, which means they don't get overlaid with good info when I re-scan.
> 
> . Do a scan using the one remaining transport, ticking the box for related transports.

That's a long way round. I just delete all channels and transports, then scan a single frequency - having looked it up on UKFree.tv (eg 706.0MHz is PSB1/BBCA on Winter Hill, on Hannington it's 666.0MHz). Tick the box for related transports and it then gets the other muxes. That is one feature that's great on DVB !

On oddity is that I find it's best to scan each transport individually - if I just do "scan all known transports" it doesn't seem to get all the channels. I suspect it might just be a timing thing - I wonder if the tuners (Hauppage HVR1300/1350 PCIe IIRC) need a bit more time to settle than the scan function gives them.


> Note: If you look at the console log while or after the scan, you will discover that the location (ie "Hannington") is actually supplied for each transport. It is unfortunate that this information isn't saved in the database or displayed in the transport table edit screen.
> 
> Having that location present would make selection much easier. An even better step would be to do a full scan and then be asked which transmitters you were interested in.

Indeed.