self support 30m GSM ham radio

Top responsesThere is an open source TETRA project here: But it is pretty limited, the problem with TETRA in my opinion is that it is overly …read more3 votesHave you looked at the OP25 project? . It's an open source version of APCO25, a competing technology with TETRA.1 voteThere was a TETRA base station at the DB0DS repeater site in Dortmund, Germany a few years ago. IIRC they gave up on the project but I don't know …read more1 voteIf there's an open stack that's feature compatible with Motorola Dimetra IP, I'll be happy - I'm managing deployment of a large-area installation in the …read more1 voteSee all