Hi Yuri
I have been using SDC and 5MContest for some years now and I am very pleased with the results when using the SDC DIGI tab with my SunSDR2-DX and 5MContest, using EE's TCI protocol.
However, I am getting increasingly concerned about using Expert Electronics' products because of the Russian invasion of Ukraine and consequently I am considering alternative strategies for my future CW and Data contesting.
I note you are currently busy developing SDC to operate with the Flex 6x000 series of transceivers and wonder if it is your intention to eventually have an SDC DIGI tab for RTTY & PSK operating with the Flex's but presumably not using the TCI protocol?
73 Ray G3XLG