MikeW <mw_phil <at> yahoo.co.uk> writes: > > <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 > >the commands > ># 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. > > Regards, > MikeW > The usual signal quality 'number' for DVB is BER (bit error rate), hence you should check this figure for both your Win and Lin setups. Lower BER => better signal, it is NOT a percentage. But there might still be a difference in averaging calculations. MikeW _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
