[dvblast-devel] Trouble with tuning in Ku-band (lower)

Kompan Kolia kompan at yandex.ru
Fri Jul 6 16:38:49 CEST 2012 

I have trouble with tuning in Ku-band (lower).

I have dish on 36°E (NTV, Trikolor).

For recieve any transponder from this sattelite, you need to set LNB to 10750Mhz.
Dvblast does`t have any options for this.

Anyway, for tuning to 11881 L, I subtract from 11881-150=11731 (10750-10600=150)
Then i run dvblast to tune 11731.

# dvblast -a 0 -f 11731000 -s 27500000 -e -v 18 - с conf_file

Everything is OK.

But if i want to tune to freq between 11727-11881, i have deep trouble.
Just i cant receive anything.
What could it be?

For example:
I need to tune on 11766L

11766-150=11616

# dvblast -a 0 -f 11616000 -s 27500000 -e -v 18 -m psk_8 -j KOI8U -J ISO_8859-5
DVBlast 2.2 (release)
warning: restarting
debug: turning on DVB compliance, required by EPG information
debug: using linux-dvb API version 5.1
debug: Frontend "STB0899 Multistandard" type "QPSK (DVB-S/S2)" supports:
debug:  frequency min: 950000, max: 2150000, stepsize: 0, tolerance: 0
debug:  symbolrate min: 5000000, max: 45000000, tolerance: 0
debug:  capabilities:
debug:   INVERSION_AUTO
debug:   FEC_AUTO
debug:   QPSK
debug:   2G_MODULATION
debug: frequency 11616000 is in Ku-band (lower)
debug: configuring LNB to v=18 p=0 satnum=0
debug: tuning QPSK frontend to f=11616000 srate=27500000 inversion=-1 fec=999 rolloff=35 modulation=psk_8 pilot=-1
debug: CA interface with 1 slot
debug:   CI link layer level interface type
debug:   0 available descramblers (keys)
debug: setting filter on PID 0
debug: setting filter on PID 16
debug: setting filter on PID 17
debug: setting filter on PID 18
debug: setting filter on PID 19
debug: setting filter on PID 20
error: no config file


OK. Next try.

Recieve by IF-Band
11766-10750=1016

I have a lot of errors or nothing.

# dvblast -a 0 -f 1016000 -s 27500000 -e -v 18 -m psk_8 -j KOI8U -J ISO_8859-5
DVBlast 2.2 (release)
warning: restarting
debug: turning on DVB compliance, required by EPG information
debug: using linux-dvb API version 5.1
debug: Frontend "STB0899 Multistandard" type "QPSK (DVB-S/S2)" supports:
debug:  frequency min: 950000, max: 2150000, stepsize: 0, tolerance: 0
debug:  symbolrate min: 5000000, max: 45000000, tolerance: 0
debug:  capabilities:
debug:   INVERSION_AUTO
debug:   FEC_AUTO
debug:   QPSK
debug:   2G_MODULATION
debug: frequency 1016000 is in IF-band
debug: configuring LNB to v=18 p=0 satnum=0
debug: tuning QPSK frontend to f=1016000 srate=27500000 inversion=-1 fec=999 rolloff=35 modulation=psk_8 pilot=-1
debug: CA interface with 1 slot
debug:   CI link layer level interface type
debug:   0 available descramblers (keys)
debug: setting filter on PID 0
debug: setting filter on PID 16
debug: setting filter on PID 17
debug: setting filter on PID 18
debug: setting filter on PID 19
debug: setting filter on PID 20
error: no config file
debug: frontend has acquired carrier
debug: frontend has acquired sync
debug: CI slot 0 is active
debug: opening ResourceManager session (1)
debug: opening ApplicationInformation session (2)
info: CAM: DRE crypt NP4+ , 01, 4A60, 0001
CAM: name=DRE crypt NP4+  type=1 manufacturer=19040 product=1
debug: opening ConditionalAccess session (3)
debug: CA system IDs supported by the application :
debug: - 0x4ae0
debug: - 0x4ae1
debug: - 0x4ae5
warning: TS discontinuity on pid    0 expected_cc  4 got  2 (PAT, sid 0)
warning: transport_error_indicator on pid 0 (PAT, sid 0)
warning: TS discontinuity on pid    0 expected_cc  3 got  0 (PAT, sid 0)
warning: TS discontinuity on pid   19 expected_cc  8 got 12 (..., sid 0)
warning: no lock, tuning again
debug: frequency 1016000 is in IF-band
debug: configuring LNB to v=18 p=0 satnum=0
debug: tuning QPSK frontend to f=1016000 srate=27500000 inversion=-1 fec=999 rolloff=35 modulation=psk_8 pilot=-1
warning: transport_error_indicator on pid 16 (NIT, sid 0)
warning: TS discontinuity on pid   17 expected_cc  1 got  7 (SDT, sid 0)
warning: TS discontinuity on pid   17 expected_cc  8 got  3 (SDT, sid 0)
warning: transport_error_indicator on pid 17 (SDT, sid 0)
warning: transport_error_indicator on pid 0 (PAT, sid 0)
debug: frontend has acquired carrier
debug: frontend has acquired sync
warning: no lock, tuning again
debug: frequency 1016000 is in IF-band
debug: configuring LNB to v=18 p=0 satnum=0
debug: tuning QPSK frontend to f=1016000 srate=27500000 inversion=-1 fec=999 rolloff=35 modulation=psk_8 pilot=-1
debug: frontend has acquired carrier
debug: frontend has acquired sync
warning: TS discontinuity on pid    0 expected_cc  2 got 12 (PAT, sid 0)
info: frontend has acquired lock
frontend has acquired lock
debug: - Bit error rate: 0
debug: - Signal strength: 1450
debug: - SNR: 39319
warning: TS discontinuity on pid    0 expected_cc 13 got  2 (PAT, sid 0)
warning: TS discontinuity on pid   16 expected_cc  1 got  7 (NIT, sid 0)
warning: transport_error_indicator on pid 16 (NIT, sid 0)
warning: TS discontinuity on pid   18 expected_cc  6 got 10 (EPG, sid 0)
warning: TS discontinuity on pid    0 expected_cc  3 got  4 (PAT, sid 0)
warning: TS discontinuity on pid    0 expected_cc  5 got 12 (PAT, sid 0)
warning: transport_error_indicator on pid 0 (PAT, sid 0)
warning: TS discontinuity on pid    0 expected_cc 13 got  9 (PAT, sid 0)
warning: TS discontinuity on pid    0 expected_cc 10 got  0 (PAT, sid 0)
warning: transport_error_indicator on pid 0 (PAT, sid 0)
warning: transport_error_indicator on pid 20 (TDT/TOT, sid 0)
warning: TS discontinuity on pid    0 expected_cc  1 got 13 (PAT, sid 0)
warning: TS discontinuity on pid    0 expected_cc 14 got  8 (PAT, sid 0)
warning: TS discontinuity on pid   17 expected_cc  4 got  2 (SDT, sid 0)
warning: TS discontinuity on pid   16 expected_cc  8 got  0 (NIT, sid 0)
warning: TS discontinuity on pid    0 expected_cc  9 got  4 (PAT, sid 0)
warning: TS discontinuity on pid   17 expected_cc  3 got  1 (SDT, sid 0)
debug: frontend has lost lock
frontend has lost lock
warning: TS discontinuity on pid    0 expected_cc  5 got 12 (PAT, sid 0)
warning: TS discontinuity on pid    0 expected_cc 13 got  0 (PAT, sid 0)
info: frontend has acquired lock
frontend has acquired lock
debug: - Bit error rate: 0
debug: - Signal strength: 1450
debug: - SNR: 39319
warning: TS discontinuity on pid   19 expected_cc 13 got  2 (..., sid 0)
warning: TS discontinuity on pid   17 expected_cc  2 got 10 (SDT, sid 0)
warning: TS discontinuity on pid   18 expected_cc 11 got 13 (EPG, sid 0)
warning: TS discontinuity on pid   16 expected_cc  1 got  8 (NIT, sid 0)
warning: transport_error_indicator on pid 16 (NIT, sid 0)
warning: TS discontinuity on pid    0 expected_cc  1 got  7 (PAT, sid 0)
warning: transport_error_indicator on pid 0 (PAT, sid 0)
warning: TS discontinuity on pid   18 expected_cc 14 got  8 (EPG, sid 0)
warning: TS discontinuity on pid   17 expected_cc 11 got  3 (SDT, sid 0)
warning: transport_error_indicator on pid 17 (SDT, sid 0)
^Cinfo: Shutdown was requested.


scan-s2 and szap-s2 utility work perfectly.
Zapping is stable result.

# szap-s2 -a 1 -S 1 -M 5 -l 10750,10750,10750 -n 2 -H -C 34 -c ./zap.conf
reading channels from file './zap.conf'
zapping to 2 'Kinopokaz HD-1 ':
delivery DVB-S2, modulation 8PSK
sat 0, frequency 11766 MHz H, symbolrate 27500000, coderate 3/4, rolloff 0.35
vpid 0x0bcd, apid 0x0bce, sid 0x0bba
using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0'
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
status 1f | signal  79% | snr 100% | ber 0 | unc 0 | FE_HAS_LOCK
^CInterrupted by SIGINT!


What could it be?

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