Cable for Anytone AT-D578UV III Pro & Plus

With a little coaching from K0TX, I was able to build a working AT-D578UV cable. You have to change one setting on the radio for PTT to work: Menu / Settings / 1. Radio Set / 64. Hand Type / 2. Volt-Det.

73,
KI5QPY

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Operation Tips

  • Set the squelch to 0: Menu / Settings / 1. Radio Set / 26. Ana Sq Level / 1. An SQ OFF
  • Change the audio to mic: Menu / Settings / 1. Radio Set / 2. Speaker Mode / 1. Mic Spk
  • Change the mic type from serial to voltage detection for PTT to work: Menu / Settings / 1. Radio Set / 64. Hand Type / 2. Volt-Det. (Note: Don’t forget to change it back to 1. Uart-Det for normal hand mic operations.)

Cable build tips
I used some Cat5 and a standard RJ-45 connector for one end and a male Tip, Ring, Ring, Sleeve (TRRS) jack on the other side. When soldering the TRRS jack, use low heat and be fast, the plastic inside will melt if you get it too hot.

Other Radio Support
I read the Alinco DR-MD500 & DR-MD520 use the same pins, so this may work on those radios too.

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