[linux-dvb] improving the quality of DVB signal
mw_phil at yahoo.co.uk
Fri Oct 5 12:18:15 CEST 2007
<ngocminh_bk_nd <at> yahoo.com> writes:
>Hi all I have 2 cards DVB-T & DVB-S of TWINHAN but i can't use the
>kaffeine to watch TV channels because the level of signal approxiate 33%.
>when i use modules #modprobe : bttv bt878 dst dvb_core dvb-bt8xx
># scan asiat3 >channels.conf #szap -c channels.conf bloomberg -r
># cat dev/dvb/adapter0/dvr0 > /home/ron/file.ts
>the signal of file.ts is very bad, not continuous.
>But when i try these card on Window the signal is good,
>about 88% How can I improve the signal? please help me. Thank you!
Are you sure that the two numbers quoted are calculated in the same way ?
Are they peak or average or windowed-average ?
Or even refer to the same signal quality indicator ?
Assuming you are comparing like with like, since some frontends with
silicon tuners have adaptive/tracking filtering, it's possible that the
Linux driver does not use the manufacturer's best algorithm for tuning.
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