[Elecraft] On the K3's CW keying envelope shaping, rise/fall times, and CW ALC

[Al Lorona]

Several years ago when the K2 modification was created by Wayne to implement a 
raised cosine keying filter I installed it and both ran simulations and made 
measurements of the resulting waveform, which agreed very closely. In fact, I 
liked the result so much that I duplicated the circuit and modified my Omni 6 
with it. I just sold that rig and feel good that the next owner will put a very 
clean-keying rig out there in the future.

In private conversations with several good contesters over the years I have the 
general impression that although none of them would intentionally modify their 
rigs to splatter (neither on CW nor SSB), they regard a clicking/splattering 
transmitter as creating the happy side effect of a virtual guard band on either 
side of them in a contest.

I also notice that whenever I am running with the K2 or K3 other contesters tend 
to crowd me just a tad closer than I'm used to on one side or the other. It 
annoys me. An unhappy side effect of exceptionally clean keying? Naw, more 
likely just my weak, little-pistol signal!

Al  W6LX