[Elecraft] K3 DSP Issue

[Phil Wheeler]

Try 5.10 beta firmware?

Phil W7OX

On 2/23/15 10:02 AM, Larry Boekeloo wrote:
> Hi everyone...
>
> Last fall, I thought I had an AF Gain pot failure in my K3.  The volume was very erratic.  When I would close the AF Gain down, the K3 would go to full volume and then go back to its normal state.  I checked this condition using the AF gain manually and by using Ham Radio Deluxe software.  The audio would act up whether I was increasing or decreasing the AF Gain.
>
>
> I was ready to replace the AF Gain control but decided to reload the software, MCU 4.86 and DSP 2.83.  That fixed my issue with the erratic volume control.
>
>
> Several weeks ago, I upgraded MCU to 5.01 to take advantage of the new QSK features.  Still no problems.
>
> Last Friday, I powered the K3 up and it was set for LSB on 1.895, where I had left it.  The Filter selected was the 2.7 and it's the only filter available from XFIL in LSB mode.  However, the audio was pinched as though the 400 Hz CW filter was engaged.  I pressed XFIL and all was normal.  However, my AF Gain problem returned.  So I reloaded the software and no fix.  I am 99.9% sure it's not the AF gain pot.
>
>
> Any ideas from the group???
>
> Larry, KN8N