[Elecraft] KDSP2 - distorted audio output

[Lyle Johnson]

> 1.  With engagement of denoiser, the voice sounded artifical 
> even I set the denoise level at 1.

The denoiser affects audio quality when it is engaged.

> 2.  The audio output level is lowered when denoiser is engaged.

This can be adjusted by setting the gain for SSB mode and for the CW mode.
This is described in the manual.  Don't set these to compenstae for overall
gain in the K2; they should only be used for balancing the gain of the
system for different modes.

> 3. From some sudden large signal, the audio output is 
> distorted.  It seems the AGC of the DSP is not working well.

The DSP has no internal AGC.  Be sure the K2 AGC is ON.  The KDSP2 should
not overload on strong signals with AGC off, unless the mode gains on the
KDSP2 are set too high.  If this is the case, set them lower.  Again, this
is covered in the manual.

73,

Lyle KK7P