600 air awful

  1. F

    Request: PSR-600 ProVoice® Firmware

    Greetings, I would like to experiment tracking provoice, will I need an older cpu/dsp version? as the radio will not track.If so could someone be kind enough to direct me to a source of the firmware? (Googled for hours) Also I find the airband reception pathetic... tried different antennas...