Picture of it plugged into the radio at left. It is a Retevis 2 Pin PTT Speaker Mic for TYT MD380 (and other radios). I decided to buy an inexpensive speaker mic for the radio, and use that to find out what the connections are. So I thought I would write a bit about that here. The situation is complicated by the fact that the same sockets are used for a USB programming cable. However the manual contains no pin-out information for the microphone and speaker, and I couldn't find much about the subject on the web. I need to get to grips with it myself, first! One of the things I wanted to do was to make a hands-free set up for the car so that I can take it mobile. although, later, I may blog a bit about using the programming software. There is plenty of information about DMR on the Internet already. Indeed, with the links to other repeaters in Kent it should provide opportunities to work many of the amateurs in the the Folkestone area that have been in the shadow of the North Downs for me here. A new repeater, GB7AS has just opened, about 6 miles from here, and I am keen to access it because it has very good coverage in this area. Just over a week ago I bought a new radio, a TYT MD-380 DMR handheld.
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