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| Fine tuning channels in knoppmyth http://forum.linhes.org/viewtopic.php?f=6&t=9436 |
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| Author: | mschlott [ Sun Apr 02, 2006 7:39 am ] |
| Post subject: | Fine tuning channels in knoppmyth |
Some of my channels from the cable look very washed out and lack color. All of my channels look like this to some extent, but a few are very bad. For example Discovery, on channel 16 looks almost black and white some times. If I tune to the channel in mythtv or using ivtv-tune the picture looks bad. Code: root@mythtv:~# ivtv-tune -c 16 -t us-cable-hrc /dev/video0: 132.000 MHz (Signal Detected) As I increase the frequency by 10ths of Mhz the picture becomes better, until I get to a point where I get some static on the screen. Code: root@mythtv:~# ivtv-tune -c 16 -t us-cable-hrc
/dev/video0: 132.000 MHz (Signal Detected) root@mythtv:~# ivtv-tune -f 132.1 /dev/video0: 132.100 MHz (Signal Detected) root@mythtv:~# ivtv-tune -f 132.2 /dev/video0: 132.199 MHz (Signal Detected) root@mythtv:~# ivtv-tune -f 132.3 /dev/video0: 132.300 MHz (Signal Detected) root@mythtv:~# ivtv-tune -f 132.4 /dev/video0: 132.399 MHz (Signal Detected) Is there a way to tell mythtv that channel 16 is 132.3 MHz instead of 132 MHz? mike |
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| Author: | tjc [ Sun Apr 02, 2006 10:35 am ] |
| Post subject: | |
There is a fine tune column in the channel table. You can access it via, mysql, webmin, or even better through one of the channel editors. These are: Under MythWeb - http://YOURHOSTNAMEHERE/mythweb/settings/channels Under mythtv-setup - 5. Channel Editor |
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| Author: | mschlott [ Sun Apr 02, 2006 7:33 pm ] |
| Post subject: | |
Thanks. That worked. There are 2 things worth noting though. You can't change the frequency of an existing channel in mythtv-setup. It must first be deleted. then re-added. The fine tune field in mythweb is an offset in KHz. Thanks again. mike |
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