[Elecraft] How "clean" is a clean signal?

[Rich Lentz]

I an listening to W1AW right now. It is 40 over on my ICOM 706 (and =
about +9
on the K2)  Any way, on both there is a PRONOUNCED key click (with the
attenuator on!).  Looking at the waveform on MixW (spectrum) you can see =
the
signal from 140465 to 140875. =20

By the way, didn't ARRL test the original K2 and have NO PROBLEMS with =
key
click. =20

Keep in mind that the K2 is owner (hand) built and it would not be that
difficult to get the wrong capacitor into the key shaping circuit and =
the
rig still function properly (other than worse than expected key click.=20

My 2 cents.

Rich,
KE0X