Hi, On Sun, 30 Jul 2006, Klaus Frahm wrote: > I also see that the signal strength is reduced with the new driver, only > in my case I still have a good reception, on the contrary this may even have > participated to avoid another problem (described my other answer of this > thread). With the new driver the tzap commands gives me: > > tuning to 714167000 Hz > video pid 0x0078, audio pid 0x0082 > status 07 | signal b962 | snr 0000 | ber 001fffff | unc 00000000 | > status 1f | signal b977 | snr 0000 | ber 00000000 | unc 00000005 | FE_HAS_LOCK > status 1f | signal b96a | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK > status 1f | signal b971 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK > status 1f | signal b97b | snr 0000 | ber 00000070 | unc 00000000 | FE_HAS_LOCK > status 1f | signal b97c | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK > status 1f | signal b977 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK > status 1f | signal b987 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK > > where the signal strenght of b987 corresponds to roughly 70% and > normally I have a perfect reception 100% (also according to another TNT-Tuner, > a Thomson DTI 1001). The old driver gave me: > > tuning to 714167000 Hz > video pid 0x0078, audio pid 0x0082 > status 03 | signal bb17 | snr 0000 | ber 001fffff | unc 0000ffff | > status 1f | signal ba37 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK > status 1f | signal 0000 | snr ffff | ber 00000000 | unc 00000000 | FE_HAS_LOCK > status 1f | signal 0000 | snr ffff | ber 00000000 | unc 00000000 | FE_HAS_LOCK > status 1f | signal 0000 | snr ffff | ber 00000000 | unc 00000000 | FE_HAS_LOCK > > and I think the signal "0000" is in reality 100% and I am convinced that my > reception is indeed 100% (an external amplified antenna) despite the fact > that I use a T-peace in the antenna connection (which is normally not very good). Be careful about the signal strength indication. There have been a lot of discussion about the meaning of the value in linux-dvb: The rule is, don't compare the value between different devices. For the new dib3000mc-driver the signal strength value reports the agc-response. It depends on the agc-settings, on the chiprevisions and on the board and other things. > I do not know which case is "correct" and what this all means but I > believe there are two issus: > > 1) There is a different, quite lower resulting signal strength in the > new driver, I would think that this is not real and a bug, but I am > certainly not sure of this. The old 3000mc-driver filled a different value in the signal-strength-function. There is no 100% or 0% signal. regards, Patrick. -- Mail: patrick.boettcher@xxxxxxx WWW: http://www.wi-bw.tfh-wildau.de/~pboettch/ _______________________________________________ linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
