[Elecraft] K3 and Yamaha CM500

[Bill Frantz]

I use the rear panel mic jack for the microphone, but I use the 
front panel 1/4" jack (with an adapter for the headphones. I 
still have a MH2 mic plugged into the Kenwood compatible 
microphone jack on the front panel. What I get from this setup is:

(1) The internal speaker goes on when I unplug the front panel 
1/4" adapter, off when the headphones are plugged in. My shack 
is 20' from the kitchen and not having radio noise is 
appreciated by the people cooking, so most of the time I use the 
radio with headphones. Having a mechanical function to switch 
the speaker on/off I avoid using a PF control.

(2) The MH2 acts as a push-to-talk switch for the CM300 microphone.

(3) When everyone in the house is planning on checking into a 2M 
repeater net, I unplug the headphones and switch the microphone 
menu item to front panel, bias on. That lets people who are used 
to picking up a microphone easily use the radio.

73 Bill AE6JV

On 9/12/15 at 12:16 PM, jim at audiosystemsgroup.com (Jim Brown) wrote:

>Easy. Everyone I know of uses the rear panel Mic and Headphone 
>jacks. That will mute the speaker by default, so I assign the 
>SPKR+PHONES toggle to PF2. Also, you'll need to go into the 
>menu to set the MIC to rear panel, and turn on bias. Details 
>are in the menu section of the manual.

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