TBS6909X

[EnoSat]

Hi,.
Interesting problem with TBS6909X.
Three LNBs (C-band) connected.
After switching to another tuner, Tuner0 is still being processed.

TBS6909X vendor

TBS6909X mode

TBS6909X tuner0

TBS6909X tuner1

TBS6909X tuner2

TBS6909X tuner3

Old connection with two LNBs (C-Band)

AltDVB - work only 58W
DVBviewer/TransEdit - work only 40W
55W was not found in any SW

Any idea ?

[DVB]

Seems like wrong mode in TBS6909xChangeModeTool - Direct Connection should be used in your case, not MultiSW.
In MultiSW mode card takes only one polarity/band from every input. You will end with randomly working satellites based on what polarity you will use and from what input.

[EnoSat]

Result similar. AltDVB no longer accepts 58W, but 40W.

[DVB]

6909x is Octa, so 8 tuners.
Tuners are connected in pairs, so tuner 0 and 1 is RF Input 0, tuner 2 and 3 is RF Input 1, 4 and 5 is RF Input 2 and 6 and 7 is RF Input 3.

So based on this photo:
download/file.php?id=3407&mode=view
SES 6R (40,5°W) will be on tuners 4 and 5.
PS: If tuner 4 locked to V polarity, then tuner 5 will be limited to V polarity.

[EnoSat]

Tuner4-7 not support scan

OS Win10

[DVB]

Latest StreamReader.dll?

What is now on tuners in e.g. AltDVB?

In Direct Connection mode I would expect:
Tuner 0 & Tuner 1 - first satellite connected to RF Input 0
Tuner 2 & Tuner 3 - second satellite connected to RF Input 1
Tuner 4 & Tuner 5 - third satellite connected to RF Input 2
I assume that you've got RF Input 3 unconnected, so now Tuner 6 & 7 should be without any signal.

[EnoSat]

Code: Select All Code

13:18:45 - 05/04/2025 StreamReaderEx BDA Ver:1.2.5.202-commited (Nov  5 2024, 20:14:46)
13:18:45 - 05/04/2025 Log level = 3
13:18:45 - 05/04/2025 DLL_PROCESS_ATTACH hModule = 6FC40000
13:18:45 - 05/04/2025 CheckForDVBEx(0x00529890)
13:18:45 - 05/04/2025 Initial tuning: ENABLED
13:18:45 - 05/04/2025 Power-off LNB on exit: ENABLED
13:18:45 - 05/04/2025 SendDiSEqC use 2 repeats
13:18:45 - 05/04/2025 Default modulation: AUTO
13:18:45 - 05/04/2025 Default spectral inversion: AUTO
13:18:45 - 05/04/2025 Default pilot: AUTO
13:18:45 - 05/04/2025 Default rolloff: AUTO
13:18:45 - 05/04/2025 Preffered BDA device type: AUTO
13:18:45 - 05/04/2025 Allowed IF Freq 565-2250 Mhz
13:18:45 - 05/04/2025 Inverted LOF<6000 and >21000 Mhz
13:18:45 - 05/04/2025 Available BDA-devices:
13:18:45 - 05/04/2025 Device 0
13:18:45 - 05/04/2025    Name: TBS 6909x DVBS/S2 Tuner 4
...

Probably best processes tuners TSReader

[crazycat]

Tuner4-7 not support scan

Yes, only first four logical demod cells support FFTScan. And you can use one app instance with StreamReaderEx-BDA in direct HW control mode .

If you need use all logical demods (streaming, monitoring) - you need use BDA sources or StreamReaderEx-BDA without direct HW control mode (HWControl=0 in streamreader.ini)

[DVB]

And you can use one app instance with StreamReaderEx-BDA in direct HW control mode .

I've ran across this on 6508 - I had a great idea to use all 8 tuners to monitor (RFScan/FFTScan and Blindscan) part of bands, like:
Tuner 0 - 10,7 - 11,2 V
Tuner 1 - 11,2 - 11,7 V
Tuner 2 - 10,7 - 11,2 H
Tuner 3 - 11,2 - 11,7 H
Tuner 4 - 11,7 - 12,2 V
Tuner 5 - 12,2 - 12,75 V
Tuner 6 - 11,7 - 12,2 H
Tuner 7 - 12,2 - 12,75 H

After starting second CrazyScan everything has crashed super badly

@EnoSat
Quite elaborated setup: download/file.php?id=3416&t=1
These are just ordinary SAT splitters? This will bring two risks:

1. If one tuner will switch e.g. 22 kHz - every other tuners will have 22 kHz switched (or polarity)
2. Splitters should have some security against overload & short circuit - easy to burn devices in this config...

[crazycat]

6508 have four dual demod chips Si21832
So you can use StreamReaderEx-BDA based app on four virtual tuners - 0 or 1 + 2 or 3 + 4 or 5 + 6 or 7.