Highfields Amateur Radio Club
Constructors Corner.

Maxon Microphone Pin Outs.
For: SM-4150, SM-4450.

6 pin Modular	Pin	Signal
	1	Common Ground
	2	E/C ??
	3	Hook
	4	Mic Audio
	5	PTT (connect to pin 1 for TX)
	6	+13.8 V