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changing channel data without full scan?
http://forum.linhes.org/viewtopic.php?f=11&t=15229		 Page 1 of 1
Author:  knopprob [ Tue May 15, 2007 4:48 am ]
Post subject:  changing channel data without full scan?
hi,

am looking at astra 19.2 east with knoppmyth installed.
on this sat a channel has changed its data (Dmax)..
i had to do a scan with my hardware sat receiver and got the new position of Dmax.

to be able to record it with my Knoppmythbox (without the above receiver, KM-box connected to the lnb (dvb-s car inside), as Knoppmyth/Mythtv will not see Dmax on the old position any more, i will have to change this data in the channel.conf.

is this possible (e.g. in using Mythweb) WITHOUT doing a full scan???

thanks,
rob
Author:  knopprob [ Mon May 28, 2007 5:25 am ]
Post subject: 
quite a response... :roll:

as some channels on the astra19.2east satellite had changed their data, and i wanted to receive these further, i had to do a new full channel scan...
it was working well, BUT:
before this i had edited the channel list (using Mythweb) to remove unwanted channels (the most): a very tedious job...

after the rescan all those removed channels are back in the list again (doesn't surprise me)....
so the same unpleasant editing has to be done each time a wanted channel changes its position on the satellite...

i was thinking: 'there should be a method or a trick to shortcut this', as the computer was an invention to take workload FROM me, not killing me with 'machinejobs (the editing)'..

anyone aware of the method or trick???
when there is none, i suggest a better method of updating the channel list should be implemented in mythtv......
( just a suggestion for free :P )

i expect not being the only one with the 'update problem', so i would like to hear from other sufferers...
Author:  lsteingr [ Tue May 29, 2007 2:35 pm ]
Post subject: 
Hi,

I take a full scan in mythtv-setup (ASTRA 19,2), and than check the database "SELECT * FROM channel" with mysql frontend tool, please look at the changes, perhaps this can fix your problem:

Code:
chanid   channum   name   mplexid   serviceid
1515   915   ProSieben_alt   33   898
18501   15   ProSieben   113   17501
1520   920   KABEL1_alt   33   899
18502   20   kabel eins   113   17502
1527   928   N24_alt   33   47
18503   28   N24   113   17503
1519   919   SAT.1_alt   33   46
18500   19   SAT.1   113   17500
1897   997   9Live_alt   33   897
18504   17504   9Live   113   17504
Author:  cameraready [ Wed May 30, 2007 6:44 am ]
Post subject: 
I'm not sure how the channel scan works with the satellite channels, but I know that with cable channels you can scan one frequency at a time. When I was setting up my QAM tuner I ran into a bunch of encrypted channels that I didn't want to scan so I made notes of what channels were good and their frequency. Once you know the frequency, you select the transport scan option when scanning channels. So instead of scanning all the channels, it just scans the frequency you selected. This saved me a bunch of time since I only had a few channels that needed scanned. This is an option in Mythtv-setup so I don't think you can do it through mythweb.
Author:  knopprob [ Wed May 30, 2007 1:24 pm ]
Post subject: 
cameraready wrote:
I'm not sure how the channel scan works with the satellite channels, but


## thanks a lot for your answer.

neutron68 found a way to scan satellite channels in a dvb-s setup,
http://www.knoppmythwiki.org/index.php?page=DVBHowTo
look for: 'dvb in the usa'

the method he described was the only one working for me, the scan as presented in the mythtv-setup does not work for dvb-s cards....
Author:  knopprob [ Wed May 30, 2007 1:27 pm ]
Post subject: 
lsteingr wrote:

I take a full scan in mythtv-setup (ASTRA 19,2), and than check the database "SELECT * FROM channel" with mysql frontend tool, please look at the changes, perhaps this can fix your problem:


## are you working with a dvb-s card in your computer?
(i don't think so, but am unsure).
Author:  lsteingr [ Sat Jun 02, 2007 5:20 am ]
Post subject: 
Sorry for confusion in my answer, i think you live in germany or europe. We have same transponder changes with 5 sat-station "prosieben, kabel eins, N24, SAT.1 and 9Live".
This station move to a new transponder location 107.
(Astra (1 G, 19,2° Est,Transponder 107 ,frequence: 12.544 MHZ or 12.545 MHz, polarisation: h, symbolrate 22.000 MSym/s Coderate (FEC): 5/6)

I have a master server with TT-Budget/S-1500 PCI (receiver saa7146,ST STV0299 DVB-S) and a diskless frontend.

I think - but not try , you can change the channels with a database tool - if only the transponder is changed. For new stations the right way is the wiki ..
Author:  lsteingr [ Sat Jun 02, 2007 6:04 am ]
Post subject:  edit the channels.conf before import
I read the wiki :
Quote:
I went back to a command line (CTRL-ALT-F1). I was still logged in so I typed
scan -a 0 /usr/share/doc/dvb-utils/examples/scan/dvb-s/AMC3 > /home/mythtv/channels.conf
The "-a 0" denotes device 0, since my DVB card was device 0. Now, you need to go back into the Mythtv setup, by using the ALT-F7 keys and then ALT-S keys.


at this point you can take the nano editor and cut out ALL not used channels and then "Import channels.conf" - edit the channels.conf
before import the file with all stations.


For germany the change to transponder 107 in channels.conf is

Code:
SAT.1:12544:h:0:22000:255:256:17500
SAT.1_alt:12480:v:0:27500:1791:1792:46
ProSieben:12544:h:0:22000:511:512:17501
ProSieben_alt:12480:v:0:27500:255:256:898
kabel eins:12544:h:0:22000:767:768:17502
KABEL1_alt:12480:v:0:27500:511:512:899
N24:12544:h:0:22000:1023:1024:17503
N24_alt:12480:v:0:27500:2047:2048:47
9Live:12544:h:0:22000:1279:1280:17504
9Live_alt:12480:v:0:27500:767:768:897
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