Re: SAA7146 (KNC ONE DVB-C): ber values reliable?

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HI!

thomas schorpp wrote:

Whatever I do (different cables, changing amplification, switching channels), czap always reports a ber of 195000.

status SCVYL | signal 8b8b | snr f3f3 | ber 0000001e | unc ffffffff | FE_HAS_LOCK status SCVYL | signal 8b8b | snr f2f2 | ber 0000001e | unc 00000000 | FE_HAS_LOCK

its static here too on every channel.

In the meantime, using Google, I found one other owner, that also has exactly 195000. This seems pretty unlikely to me, if the ber value is computed right.

At the moment, one card has constantly 195000 and the other 101d0. I guess, when I reboot, it's back to 195000 (like it was once, when one card had a ber of 10.

BTW, czap and femon show different values, if I use femon without a tuning app (like czap) running parallel, is this normal?

$ czap "das vierte" -c channels.conf
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
151 DAS VIERTE:762000000:INVERSION_AUTO:6900000:FEC_NONE:QAM_64:2047:2048:1793
151 DAS VIERTE: f 762000000, s 6900000, i 2, fec 0, qam 3, v 0x7ff, a 0x800
status 1f | signal 8484 | snr f4f4 | ber 00195000 | unc ffffffff | FE_HAS_LOCK status 1f | signal 8484 | snr f3f3 | ber 00195000 | unc 00000000 | FE_HAS_LOCK

*CTRL-C*

$ femon
using '/dev/dvb/adapter0/frontend0'
FE: Philips TDA10021 DVB-C (CABLE)
status 1f | signal 0000 | snr ffff | ber 00969696 | unc 0000000f | FE_HAS_LOCK status 1f | signal 0000 | snr ffff | ber 00969696 | unc 0000000f | FE_HAS_LOCK

im very satisfied with this device knc1 c plus :)

Me too. It's just that some apps report broken recordings, when jumping through the recording (playing is OK). I'd like to find out, why.

Thanks!

Thomas



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