I have remote control Radiomaster TX12 mk2 (EdgeTX).
External RF + CRF mode is enabled

If I connect Beta FPV TX to it, then everything works fine, i.e. the remote control outputs the correct data.

But if I connect the S.Port via Serial to a PC and look at the data it sends, I get completely different data that does not look like the CRSF packet format.

If I press the buttons on the remote control, it is clear that the bytes are changing, but the packet size and initial bytes do not correspond to those that should be in the CRSF packet.

There is a CRSF 400k on the remote and I set the baud 400000 on the PC.

How to correctly read remote control data from S.Port on PC?