[Elecraft] cw 'clicking' ??

[Paul Christensen]

> "The longer we resist these standards the worst the problem is going to 
> become...Hams are just being stubborn for no good reason for arguing 
> against  these common sense standards that all other HF  users must comply 
> with."

At least for CW, I think the worst is now behind us.  Also, some of the 
worst offending transceivers are manufactured for the high-end HF commercial 
and military markets.

Within the last few years, manufacturers in the amateur market have paid 
better attention to the shape of the keyed envelope.  Even Yaesu's newest 
transceivers are reasonably good.  The usual culprits are now out of 
production, although they will continue to show up on the air for a long 
time.  Start handing out 599K reports to the remaining offenders.

> Whats amusing is that everyone focuses on keyclicks, yet the problem 
> exists  to a greater degree on SSB.

Agreed and that's the next opportunity for improvement.  IM effects from 
transmitters that are only -30dB (I3), can not only be heard, but are 
clearly visible on a direct-RF-sampling pan adapter.  I would like to see I3 
improvement to at least -40 dB, and -55 dB is now attainable with 
pre-distortion techniques like that used on the Swiss ADT-200A.  Those 
numbers are repeatable across bands and the '200A does not reply upon an ATU 
to get there.

Paul, W9AC