As I mentioned on a previous post, it was quite of a challenge working with the Teltronic M4000 because there is no information available anywhere. A friend of mine lend me one to see if I can program the Teltronic M4000 on the amateur radio bands but I got no programming cable or programming software with the radio. I started the research and found at some forums that the … [Read more...] about Build your own Teltronic M4000 programming cable