[Elecraft] K3 Yamaha CM500 vs Koss SB40

[Don Wilhelm]

Tom,

I do not have the specifications for the Koss SB40, but all the ad 
statements say it has a dynamic microphone element.
What happens if you turn off the bias?  If you get no audio, then it is 
an electret element, but if you do get audio out of it, it is dynamic.
Operating a dynamic microphone with bias turned on will create distortion.

73,
Don W3FPR

On 11/5/2015 8:40 PM, cx7tt at 4email.net wrote:
>
> So, what is the difference between these two headsets and what can I do
> to properly use the SB40?
>
> BTW, the Buddipole/CM500/K3 combo was great...due to proximity to
> building, could only use BP on 10 and 15m...worked over 600Qs in 3 hours
> on 10m on Sunday pm......great fun.
>
> Suggestions for using the SB40 w/K3?
>
>