[Elecraft] KDSP2

[Richard Lim]

Have been playing with the KDSP2 now for a few hours. I have found an
additional perk with the DSP which really adds to the utility of this
option. You can now increase the audio gain though the KDSP there by
increasing the rigs audio output to a level much greater than through the
stand alone K2.  In addition, you can adjust the audio gain of the denoiser
to balance the audio output to the output without it engaged. This was
important to me as I had a sense that with the denoiser engaged,  audio
output was being attenuated. By playing with the gain for the filter, my
audio stays at the same level when I engage the denoiser, neat.

I have noticed one problem with the KDSP2. My K2 is set up as the K2-twins
ie: K2 with separate KPA100/KAT100 in EC2 enclosure and when I attempt to
tune the rig at Pout >10 watts or so, my KDSP2 no longer is recognized by
the K2. That is to say after initiating a tune cycle and getting a match I
get a "not inst" error message if I hit the DISP button. This happen
probably one in two or three tune cycles. Must be RF getting into the system
somewhere, kind of a bummer as before the KDSP2 I did not have this problem.
Will have to work on this one and get back to you guys.  Any ideas?

Rich
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73 DE KQ9L K2/100 #3232