[Elecraft] Heil GM4 to K3

[David Sanders W4DES]

the Heil 4 pin XLR uses pins 3 and 4 for PTT , pin 2 for 
the Mic, and pin 1 is shield/ground. 

according to: http://homepage.ntlworld.com/rg4wpw/date.html


On Apr 30, 2014, at 7:48 PM, Gary Smith <Gary at ka1j.com> wrote:

> I just picked up a Heil goldline GM-4 mic and it has an XLR connector 
> with 4 pins. I've been trying to find what the pins represent and as 
> much as I've been able to figure pin 4 =PTT and pin 3 = 
> shield/ground. I can't figure out what pin 2 and pin 1 go to, one of 
> them has to be mic, it's not an electret mic so it does not need 
> power. Below are the pin values for the K3
> 
> 1 Mic audio, low-Z (~600 ohms)
> 2 PTT
> 3 DOWN button *
> 4 UP button *
> 5 FUNCTION button *
> 6 8V (10 mA max)
> 7, 8 Ground
> 
> Anyone know what 1 & 2 on the mic connect to?