Recently, I was invited to a project to develop an amateur satellite UmKA-1.
I am currently developing an S-band transmission protocol for this satellite.
The transmission protocol is based on the CCSDS protocol but has a modified
transport frame. Also it has CONV 1/2 and PN :) @UB1QBJ
435.825/437.625MHz, GMSK_USP 2k4-9k6