Highfields Amateur Radio Club
Constructors Corner.
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copyright date

Vertex Standard / Yaesu Microphone Pin Outs.
For: FT-450, FT-600, FT-817, FT-897, FT-900.

Important:
Keep Mic Ground and PTT Ground separate.
Never ground pin 3 or damage to the regulator will occur.

8 pin Modular Pin Signal
connector 1Down
2Up
3+5v
4Mic Ground
5Mic Audio
6PTT
(connect to pin 7 for TX)
7Ground
(PTT and other functions)
8Fast


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