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A Universal Programming Cable for Radios

http://www.cqham.ru/uniprog2_eng.html

The programming cable is intended to be used with a computer RS-232 port for programming radios

and other devices. The main goal of this cable schematics is inverting signal levels. That is becauseCOM port's logic one is a low voltage level, logic zero is a high voltage level. Another goal is the correctvoltage level transformation with regard for the real radio programming cirquits. And nothing must getburnt...

Schematic diagram

Connection circuits (jacks for mobile radios are shown as they are plugged into sockets)

http://www.cqham.ru/uniprog2_eng.htmlhttp://www.cqham.ru/uniprog2_eng.html

8/19/2019 Universal Radio Programmer

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