[Elecraft] Yaesu SSM-17A mic with KX2?

[Bob McGraw]

Too many hams believe that if the connector will plug in, it should 
work.  This is nothing farther from the truth.  There are little to NO 
standards with ham radio equipment.

You will need to check the pin-out circuits on the KX2 as published in 
the manual.   Then check the SSM-17A wiring.   You will have to rewire 
the connector on the SSM-17 to make it work.

73

Bob, K4TAX



On 10/27/2024 12:06 PM, elecraft-request at mailman.qth.net wrote:
> Message: 2
> Date: Tue, 22 Oct 2024 15:56:16 -0700
> From: Mark Cohen<WA7MPC at mpc.sh>
> To:elecraft at mailman.qth.net
> Subject: [Elecraft] Yaesu SSM-17A mic with KX2?
> Message-ID:<C3D4C6DA-7F5E-44E3-A83C-7AD69CCDB5D0 at mpc.sh>
> Content-Type: text/plain;	charset=us-ascii
>
> Hi folks,
>
> I recently purchased a Yaesu SSM-17A<https://www.amazon.com/Yaesu-Standard-Microphone-SSM-17A-Replaces/dp/B089YW2BP9> speaker microphone hoping to use it with my KX2. I don't need the up/down buttons on the Elecraft MH3, and it's less than half the price.
>
> I'm surprised to find that the PTT button on the Yaesu speaker mic does not seem to work with the KX2. I've tried every combination of the MIC BIAS and MIC BTN options to no avail. I can get audio out from the mic using the front panel XMIT button, but the PTT on the hand mic does not key the transceiver.
>
> Does anyone have advice on debugging this? Or is it just fundamentally incompatible? I'm surprised because the connector is exactly the same as the Elecraft MH3.
>
> Thanks in advance for any knowledge you might be able to share, and 73 de Mark WA7MPC.