If you wish to make your own cable using a XLR connector and a 1/8" Tip-Sleeve connector,   XLR pin #2 connect to Tip, XLR pin #3 and pin #1 to the Sleeve.   In the XLR world, pin #1 is ground/shield, pin #2 is hot (+ve) and pin #3 is cold (-ve) Thus for unbalanced use, pin #1 and pin #3 must be connected.

Also, the mike bias must be OFF via the configuration selection in the radio.

73

Bob, K4TAX


On 6/7/2018 11:06 AM, Michael Blake wrote:
Mike,  I connect my EV-RE50ND to the rear 1/8” connector on my K3s without 
issue.  You need an XLR to TS 1/8” male cable or adapter.  The mic does not 
care if it is balanced or unbalanced but if you use an XLR to TRS adapter the 
ring will be floating free and will cause a problem.

You can buy the correct 3 pin XLR to 1/8” TS Male cable at your local Guitar 
Center or similar place for less that $20….

Select the rear mic. Gain high and bias off.  The very same mic and cable also 
work perfectly with my KX3.
Michael Blake
k9...@mac.com <mailto:k9...@icloud.com>






On Jun 7, 2018, at 11:56 AM, mike <ai...@comcast.net> wrote:

I would like to connect my 600 ohm balanced mic PR 77D to the K3s rear mic
connection. The mic connector is XLR 3-pin. I cannot figure out if the K3
rear connection can accept a balance mic. The adapters I have tried produce
hum and lead me to believe they force it to unbalance.

Any help appreciated. 73  ..mike  AI6II



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