[Elecraft] Rear Mike Jack Question

[Buck]

I would suspect a Windoze update scrambled your sound assignments.  Go 
back and check all your settings.

k4ia, Buck
K3s# 11497
Honor Roll  8B DXCC
EasyWayHamBooks.com

On 8/23/2020 11:56 AM, N4ZR wrote:
> Recently, I began trying to use the rear microphone jack on my K3 with 
> my Yamaha boom mike, instead of using a stand-alone USB sound card and 
> feeding the signal to the LIN IN jack.  This worked fine for a couple of 
> weeks, but today when I tried it, I got very loud white noise driving my 
> radio and amp essentially to full scale. I have MIC SEL set to RPH BIAS, 
> which has worked in the past. Any MIC gain setting over 7 drives the amp 
> to full output.  When I pull the mike plug out of the jack, the problem 
> goes away.
> 
> Have I inadvertently messed up another setting, or perhaps a failure in 
> the mike?
>