[linux-dvb] NOVA-TD odd behaviour.

Henrik Beckman henrik.list at gmail.com
Thu Jan 10 17:43:03 CET 2008


Hi,

This is from my NovaTD stick, is something is odd.


Sometimes when I tune a different channel on tuner1, reception on tuner 0
_seems_ to be affected.
status 1f | signal 72b3 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7229 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7260 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7322 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 70fe | snr 0000 | ber 0000ebd0 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7134 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 714a | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7080 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
*status 1f | signal 7051 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 6fda | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK*
status 1f | signal 6fcb | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 6fc7 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 6fbc | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 6f1b | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 6fc7 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK

So I started poking around a bit.

Same channel (A), channel on both tuners at the same time.
Tuner 0
status 1e | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1e | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1e | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1e | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK

Tuner 1
status 1f | signal 716e | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7183 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 71d8 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7174 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7170 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK

A different channel (B), but same on both tuners.
Tuner 0
status 1f | signal 75ec | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 75e2 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7575 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7567 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7576 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7317 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK

Tuner 1
status 1f | signal 71f8 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7262 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 71f3 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 71e2 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 71f1 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7172 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7170 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK

So I figure my splitter is the cause of the problem.
Antenna straight into the tuner, no splitter, channel A
Tuner 0
status 1f | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK


Tuner 1
status 1f | signal 798b | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7988 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 78ad | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 783c | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 7900 | snr 0000 | ber 00000000 | unc 00000000 |
FE_HAS_LOCK

Channel A,
SVT1OLD:626000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:1019:1018:1010
Channel B

TV4
Uppland:474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:1049:1048:6100

I´m lost.

/Henrik
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