Re: New approach for GNU/Linux TC receivers using DVB-S2 PCIe cards


Ernst Lobsiger
 

Dear GNU/Linux users

The version of szap-s2 distributed in the evaluation kit with dvbond0
produces considerable additional UNIX system load with TBS-6903X/09X cards.
One reason is an added retreival of the demodulator chip temperature.

On the other hand this version can set MODCODs on the cards mentionned.
One possibility to get rid of the added system load is the -Q switch.
The -Q (Quiet) switch suppresses all unnecessary parameter retreival:

Look for these lines in dvb-eumetcast and add the -Q (+ final space):
...
                         A*)
                         # C-Band Africa...
                         SZAP_OPTION="-l $LOF_C  -Q  "
                         ;;

                         H*)
                         # C-Band Africa...
                         SZAP_OPTION="-l $LOF_KU  -Q  "
                         ;;

                         E*)
                         # C-Band Africa...
                         SZAP_OPTION="-l $LOF_KU  -Q  "
                         ;;

...

BTW comment # C-Band Africa...  under E* and H* is copy & paste error.
If you run my TBS-6909X 3 demodulator single cable solution you can set
the SID=1 (using P1) and set Bas MODCODs 8psk 3/5 only with W00001000.

For above settings make these changes in channels.conf:

Eutelsat 10A:11263:hS1O25:0:33000:::
AtlanticBird3:3732:h:0:11963::::
E1:11263:hS1P1:0:33000:::
E1B:11263:hS1P1W00001000:0:33000:::
E1H:11263:hS1P1:0:33000:::
E2:11388:hS1P1:0:33000:::
H1:11317:vS1:0:29950:::
H1B:11317:vS1:0:29950:::
H1H:11317:vS1:0:29950:::
H2:11355:vS1:0:29950:::
Htest:11393:vS1:0:27500:::
A1:3848:hS1:0:9892::::
#name:frequency:PolarisationDVBStdModcod:diseqSatNr:Symbolrate:::


Stop tellicast-client and dvb-eumetcast and restart to apply changes.


Cheers,
Ernst

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