[CQ-Contest] [YCCC] Key Clicks in ARRL DX CW

[Jim Brown]

On Tue,2/23/2016 6:49 AM, Tony Brock-Fisher via CQ-Contest wrote:
> Which raises the point, why do manufacturers allow a setting that will knowingly cause interference?

Because they are dumber than they look. The generally poor performance 
of Yaesu and Icom rigs in this regard are evidence of this fact. And 
because users think fast rise times are needed for well defined CW. No 
surprise -- for as long as I've been a ham, ARRL publications have said 
that occupied bandwidth of a CW signal depends on speed, which is 
absolutely untrue. Which Elecraft has proven is NOT true. I've seen 
posts from high speed CW ops who ragchew at 60 wpm and are VERY happy 
with how the K3S, or the K3 with the new synthesizer board, performs at 
these speeds.

> If they provide the setting, and know what it does because they have implemented it, can't they tell how fast is too fast? Is there ever a reason to have such a fast rise time?

No.

> Does anyone actually run 60 wpm CW these days?

Yes. But not during contests. :)  See above.

73, Jim K9YC