TBSDTV Community Forum

The title says it all.
When I'm trying to tune on dvb-s2 channels via szap-s2 I can't get a lock.
scan-s2 output of working channel:

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[thomas@neula .liplianin-szap-s2-d65015db2778]$ ./szap-s2 -c channels.conf -r -n 1
reading channels from file 'channels.conf'
zapping to 1 'FIP':
delivery DVB-S, modulation QPSK
sat 0, frequency 11567 MHz V, symbolrate 22000000, coderate 5/6, rolloff 0.35
vpid 0x1fff, apid 0x076f, sid 0x0000
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
status 1f | signal d9c0 | snr e800 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal d9c0 | snr eb33 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal da40 | snr 4e66 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal da40 | snr 4e66 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal da40 | snr eb33 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
....

and the ouput of an s2 channel:

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[thomas@neula .liplianin-szap-s2-d65015db2778]$ ./szap-s2 -c channels.conf -r -n 1116
reading channels from file 'channels.conf'
zapping to 1116 'ServusTV HD Oesterreich(ServusTV)':
delivery DVB-S, modulation QPSK
sat 0, frequency 11302 MHz H, symbolrate 22000000, coderate auto, rolloff 0.35
vpid 0x0dff, apid 0x0e02, sid 0x1331
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
status 01 | signal da40 | snr 0000 | ber 00000000 | unc 00000000 |
status 03 | signal da40 | snr 0000 | ber 00000000 | unc 00000000 |
status 01 | signal da40 | snr 0000 | ber 00000000 | unc 00000000 |
...

The card seems to be detected as it should and the firmware is loaded
dmesg:

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[ 6120.022337] cx24116_firmware_ondemand: Waiting for firmware upload (dvb-fe-cx24116.fw)...
[ 6120.048484] cx24116_firmware_ondemand: Waiting for firmware upload(2)...
[ 6123.461656] cx24116_load_firmware: FW version 1.23.86.1
[ 6123.461665] cx24116_firmware_ondemand: Firmware upload complete


lspci:

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02:00.0 Multimedia video controller: Conexant Systems, Inc. CX23885 PCI Video and Audio Decoder (rev 02)


uname -a :

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Linux neula 3.7.5-pf #2 SMP PREEMPT Sat Mar 9 19:53:18 CET 2013 x86_64 AMD Phenom(tm) II X6 1100T Processor AuthenticAMD GNU/Linux


Thanks in advance

Hi Neula.
If you are using TBS6920, you must to indicate all parameters for TP, specially delivery system ( -S ) and modulation ( -M ).

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usage: szap -q
         list known channels
       szap [options] {-n channel-number|channel_name}
         zap to channel via number or full name (case insensitive)
     -a number : use given adapter (default 0)
     -f number : use given frontend (default 0)
     -d number : use given demux (default 0)
     -c file   : read channels list from 'file'
     -V        : use VDR channels list file format (default zap)
     -b        : enable Audio Bypass (default no)
     -x        : exit after tuning
     -H        : human readable output
     -D        : params debug
     -r        : set up /dev/dvb/adapterX/dvr0 for TS recording
     -l lnb-type (DVB-S Only) (use -l help to print types) or
     -l low[,high[,switch]] in Mhz
     -i        : run interactively, allowing you to type in channel names
     -p        : add pat and pmt to TS recording (implies -r)
                 or -n numbers for zapping
     -S        : delivery system type DVB-S=0, DVB-S2=1
     -M        : modulation 1=BPSK 2=QPSK 5=8PSK
     -C        : fec 0=NONE 12=1/2 23=2/3 34=3/4 35=3/5 45=4/5 56=5/6 67=6/7 89=8/9 910=9/10 999=AUTO
     -O        : rolloff 35=0.35 25=0.25 20=0.20 0=AUTO


Best regards.

I agree, in the OP he states

on s2...
zapping to 1116 'ServusTV HD Oesterreich(ServusTV)':
delivery DVB-S, modulation QPSK

so... its he thinks he's tuning s2, but obvious he's not.

UDL

I had to add -S 1 -M 5 and -C 23 and it seems to work very good now!

Thanks for your help.

Neula