[Elecraft] Questions on Yamaha CM-500 boom headset with K3

[Don Wilhelm]

Jon,

Just plug it in, turn bias on and set the Mic gain range to L (low) - 
the microphone is quite sensitive. (MIC SEL  RP.L bias)
You do not need the battery on the K3, but hang onto it, you may need it 
with another transceiver that does not supply bias internally.

73,
Don W3FPR

On 2/28/2013 9:00 AM, Jon Zaimes AA1K wrote:
> Just bought one of these boom mic-headsets and plan to use with my K3's.
>
> Is the battery bias supply included with the headset needed?
>
> And do I need to adapt the microphone's 3-conductor mini phone plug to a
> 2-conductor before plugging into the K3 rear-panel mic input?
>
> Thanks any help ....
>