On Tue, 27 Jan 2009, Tobias Stoeber wrote: > > In reality, when I've been in a new location and done a scan > > without knowing transmitter site details, I've just used a > > general purpose scanfile I've created which goes from 474 in > > 8MHz steps up to 850 or so, like > > ### Kanal 68 UHF > > T 850000000 8MHz AUTO AUTO AUTO AUTO AUTO AUTO > > So why then not provide a generic scan file listing all freq with AUTO > parameters? It's a nice idea, but apparently there are some devices which do require particular values and don't work with `AUTO'. Also, it will take some time to scan all these frequencies, so I prefer to limit it where possible to known and nearby in-use frequencies, rather than waiting half an hour to see that just one frequency tunes. And third, while it's the case for germany and most if not all nearby countries, that the actual frequency in MHz will be divisible by two (except for the few remaining VHF) and have no fractional MHz values, this is not the same in all countries where DVB-T is in use. That could be due to the pretty much hard switchover/off having largely happened, with no or a coordinated simulcast, while other areas have to play with offsets, but I'm not so familiar with the status and progress of switchover everywhere. There are apparently also some devices which need to have any offset specified precisely, or they can't tune to that particular frequency. Anyway, one of my reasons for creating my version of de-BW was not only to list the frequencies, but also to provide info as I absorbed it about the transmitter sites and more, that you wouldn't get in a generic universal frequency list. That was prompted by an interest in trying to get my head around the GE06 frequency plan and allocations, which would also mean I'd need to try and understand the planning of the SFNs. That file can be shrunk and expanded by the use of comments to make it more relevant to a particular area -- if you're basking on the Bodensee, you don't need to know anything about France, Hessen, or some 2/3 of all the frequencies scattered throughout the B-W file, and my comments should make that easy. After all, it wasn't until you pointed me to the first pdf list that I was aware that QAM64 was in use in germany, save for bleed out of france, and it will be interesting once I get around to noting the transmitter sites on a printed map. barry bouwsma _______________________________________________ linux-dvb users mailing list For V4L/DVB development, please use instead linux-media@xxxxxxxxxxxxxxx linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
