>> Joacim wrote: >>> I executed dvbsnoop (with -s singal) during a scan and when finding channels >>> I >>> got: >>> Sig: ~46000 >>> SNR: 0 (?????) >>> BER: 0 >>> >>> Can I trust the values from dvbsnoop?? Any better tool?? >> >> I use femon from the dvb-tools package (or the VDR-plugin named the same). >> >> /Richard > > I tested 'tzap' and 'femon' > > root@frodo:/home/joacim# tzap -a 0 "Nickelodeon" > using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' > tuning to 594000000 Hz > video pid 0x03bf, audio pid 0x03be > status 0b | signal 8fff | snr 0000 | ber 001fffff | unc 00003c4c | > status 1f | signal 9036 | snr 0000 | ber 00000000 | unc 00002347 | FE_HAS_LOCK > status 1f | signal 9040 | snr 0000 | ber 00000000 | unc 00003e98 | FE_HAS_LOCK > status 1f | signal 902e | snr 0000 | ber 00000000 | unc 00003c57 | FE_HAS_LOCK > status 1f | signal 9014 | snr 0000 | ber 00000000 | unc 00003efe | FE_HAS_LOCK > > root@frodo:/home/joacim# femon -a 0 > using '/dev/dvb/adapter0/frontend0' > FE: DiBcom 3000MC/P (TERRESTRIAL) > status 1f | signal 8e6e | snr 0000 | ber 00000000 | unc 00003ef9 | FE_HAS_LOCK > status 1f | signal 8e6e | snr 0000 | ber 00000000 | unc 00003ef9 | FE_HAS_LOCK > status 1f | signal 8e6e | snr 0000 | ber 00000000 | unc 00003ef9 | FE_HAS_LOCK > status 1f | signal 8e6e | snr 0000 | ber 00000000 | unc 00003ef9 | FE_HAS_LOCK > status 1f | signal 8e6e | snr 0000 | ber 00000000 | unc 00003ef9 | FE_HAS_LOCK > > > I get SNR 00000 with both apps, singal varies a bit between them. > Is it possible to get SNR info out of Nova-T or could it that bad ??? > > -- > Regards > Joacim > One other question (since I don't have total grip of this area). I have also 2 Dreamboxes and those are showing: SNR: 99% AGC: 60% BER: 0 SNR, I understand quite well I think. Higher values means better quality and less noise. I should not only focus on high values but also a stable value. AGC, I don't understand. Can someone explain this?? BER, I think I understand this, Bit Error Rate means errors in the signal that could not be interpreted by the receiver. Should be as low as possible. Please correct me and/or fill in to increase my knowledge :) Regards Joacim _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
