[Elecraft] XLR Audio Cable to K3S

[Jim Brown]

On Sun,6/5/2016 9:30 AM, David Ahrendts wrote:
> Am I correct here:
> I’m building an audio cable for the K3S — 3-pin XLR from the mich to the 8-pin K3S input (pin diagram on page 13 of the Owner’s manual). And here’s a Wiki on the XLR pins:  https://en.wikipedia.org/wiki/XLR_connector
> XLR pin #1 (ground) to K3S 8-pin #7 and #8, both ground.

First, the correct words are SHIELD and SHIELDING ENCLOSURE, not 
"ground." For a dynamic mic, pin 1 to the shielding enclosure, pin 2 is 
mic "high," pin 3 is mic return.

> The connector shell should be grounded also for best RF protection, yes?

NO, an the shell of an cable-mounted XLR should NOT be connected to 
anything. The shell of ALL connectors built into equipment SHOULD be 
bonded to the shielding enclosure.

73, Jim K9YC