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A simple Motorola radio programming interface using the Pollin RS232-TTL converter kit and the addition of 1 diode The Pollin RS232-TTL converter can also be used to implement one of the many simple ...
Maxdroid Maxtrac is hardware & software modification to add display and VFO controls for Motorola Maxtrac / Radius / Motorola GM300 business radios - rudikwid/Motorola-GM300-Arduino-Control-Dis ...