The standard XLR (3 pin) mic wiring is Mic+ to pin 2,
mic- to pin 3. Simply connect pin 2 to the tip of a
3.5mm plug and connect pin 3 to the sleeve of the 3.5mm
plug. Leave pin 1 (shield) float on the rig end (or
connect it to the chassis/ground lug - the sleeve of
the 3.5mm jack is not grounded!).
To connect an XLR (3 pin) mic to a Foster (8 pin) jack,
connect XLR pin 2 (Mic+) to pin 1 of the Foster,
connect XLR pin 3 (Mic-) to pin 7 of the Foster,
connect XLR pin 1 (Shield) to the *SHELL* of the Foster
plug (should be connected to chassis/case).
73,
... Joe, W4TV
On 2020-05-11 5:32 PM, Tony wrote:
All:
I'd like to connect an XLR mic cable that has a 1/4 inch TRS plug to my
K3S. It seems the only way to do that is wire a female 1/4 inch TRS to
an 8-pin mic connector.
It would be easier to use a 1/4 to 1/8th inch adapter and connect
through the rear mic input, but I don't believe it accommodates balanced
mics?
Thanks,
Tony
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