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simple PTT/audio interface

Posted: 18 Mar 2018, 20:17
by welshevo
im looking for a simple PTT/audio interface to pass audio from zello through a Sepura SRH (side connector audio accessories port) radio but cant seem to find any info on pin outs etc? do Sepura use the same pin outs as the Motorola MTH side connector? any advice would be amazing....