[Elecraft] Microphone Setup Confusion

[Walter Underwood]

The mic bias is +3.3 V on the tip. On the KX3, there is also a logic level DC voltage on the ring. This is not as clean as the mic bias and can cause some noise on mics that short those. You can split out those signals with a TRS plug or a stereo-to-mono splitter. See this blog post (from me) for details.

https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/

Phantom power for studio mics is quite different.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On May 16, 2023, at 6:40 PM, Alan Geller via Elecraft <elecraft at mailman.qth.net> wrote:
> 
> Is what Elecraft calls mike “bias” in the K3 and K3s Owners handbooks 
> Equivalent to the “48 volt ghost voltage” required for condenser mikes et al
> In the broadcast and music industry ?
> 
> It is mentioned that “mike bias” needs to to be turned on for condenser type mikes
> But off for dynamic types which is also equivalent for the more common 
> Term  “48 volt ghost voltage”
> 
> Thanks for any help
> 
> Alan/K6ADG
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