The MMDVM/Raspberry-Pi combo will turn a single analog radio into a high powered hotspot or 2 radios into a fully featured digital voice repeater. Instead, it uses cables to wire directly into the IO pins of the radio(s) you choose. The MMDVM-Repeater board is a lot like a hotspot, except it doesn’t have a radio built onboard. The MMDVM is a hardware and software component that can interface radios to a computer, like a raspberry pi, turning normal analog radios into digital radios, much like a TNC for packet radio. This simple creation has put the power back into the hands of radio operators around the world allowing them to build and tinker with digital voice systems, breaking down the barrier of needing expensive commercial hardware. Since the release of the MMDVM in early 2016, Johnathan Naylor’s (G4KLX) creation has hit the ground running throughout the ham community. Making your own MMDVM digital voice repeater.
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