penguin wrote:Yes, of course, I heard of people who love wind noise and motor sound in stereo instead of mono and sharing one channel
My Video Tx/Rx are all stereo, but I never was a friend of this solution...
But I think it's not that common that people use stereo vTX and vRX?
Myself I only have a mono
But to be honest I don't have any microphone so I don't need the audio 
Anyway, this could be solution although I don't know how robust such solution would be.
OpenLSR sounds very interesting...
- eLeSeR doku/blog is only in Polish?
Unfortunately for timebeing this is only in Polish. Except what you can find on on the page that offers those.
Obviously this is a big minus for non-Polish speaking willing to buy people.
There is pressure to create English documentation so hopefully you should here some news.
- why did the Polish guys made their own one (and didn't use OpenLSR instead)
- Is it opensource?
The original concept was just to make OpenLRS compatible hardware. But once the guys started to work on that they saw that OpenLRS code can be improved. So they started to develop their own code and came with today solution. I know that OpenLRS at that time had some potential problems that were eliminated in eLeReS.
Unfortunately the code is not OpenSource :/
- you ment telemetrie via UART, not RS232? Is it possible to connect any additional controller and use the Rx and Tx as Transceiver with implementation of own communication protocol, data, sensor or what ever?
Yes I mean UART. And generally you can transmit anything through that and receive on ground. As said in the previous post, currently there is only down-link, so you can transfer anything from the plane and receive on ground via UART on the TX module.
Btw, I like your tracking antenna solution. I like the self calibration. It's quite complex so I would think it's also expensive?