LNB circular enigma2

[Dima73]

Please help. What values should be entered? I entered Lof High (MHz) 107500 Lof Low (MHz) 107500 Lof Switch (MHz) 107500 but that's not it.

[Barracuda09]

@Dima73 I would expect if you use universal LNB in enigma it should cancel out the calculations in satipclient

[Dima73]

there is always a calculation https://github.com/oe-alliance/satip-client/blob/a12648d40698efe77f0ba5fa73e9e70f90c6d591/vtuner.cpp#L272 By the way, is it getting data from the server?

[Barracuda09]

@Dima73

Yes it always does the calculation but it adds the LOF. So Enigma is subtracts the LOF to get the tune freq. then the vtuner adds it again to send the channel freq via SAT>IP protocol. Then the SatPI subtracts the circular LOF to get the tune freq.

So my guess would be: use in Enigma the Universal LNB and that would do the trick.

Yes the test here https://github.com/Barracuda09/SATPI/issues/195#issuecomment-1538924497 shows there is data. And here https://github.com/Barracuda09/SATPI/issues/195#issuecomment-1540788077 show it tunes to the requested channel correctly.

[Dima73]

So my guess would be: use in Enigma the Universal LNB and that would do the trick. I tested it yesterday and it's only one channel out of dozens that worked. I couldn't repeat this again.

[Barracuda09]

So example:

Enigma:

• Channel freq = 11785 Mhz => higher then switch LOF of 11700 so high band
• Tune freq => 11785 - 10600 = 1185 Mhz

vtuner:

• Checks tone for detecting high/low band (tone is on)
• Tune freq = 1185 MHz then 'conversion' to
• Channel freq => 1185 + 10600 = 11785 MHz
• this is send via RTSP to SatPI

SatPI with Circular LNB:

• Channel freq = 11785 Mhz
• Tune freq => 11785 - 10750 = 1053 Mhz

So if you use a different LOF (LNB) in Enigma that is not used in vtuner you get a different channel what SatPI is tuning to

[Dima73]

Ok. Use as universal LNB. Finally, it somehow worked, I checked the switching to several channels, at least there is some kind of result.

The next problem, although this probably does not apply to satpi. Right now I'm using a real 36E channel list. But in the future I won't have a satellite dish. Service scanning does not work through satipclient. I have checked several times now. Could this be a problem with the circular LNB? Do I understand correctly that scanning and creating a channel list should work through satipclient when using the original universal LNB (I myself can not check)?

Maybe it's still worth adding support for the circular LNB in satipclient? If possible...

[Dima73]

I'm sorry. The scan seems to be working.

[Dima73]

Barracuda09 Two days of testing everything is ok. Thank you very much. The topic can be closed.

[Barracuda09]

@Dima73

Thanks for your efforts and implementation in @OpenPLi

As requested this will be closed