[CQ-Contest] Key Clicks.... Continuing Problem

Jim Brown k9yc at audiosystemsgroup.com
Sun Nov 15 14:31:20 EST 2020

On 11/15/2020 11:11 AM, Kenneth Wolff wrote:
> I was surprised that Jim put part of my private message out to 
> CQ-Contest. I've learned my lesson and won't embrace the YC tar baby 
> <https://www.merriam-webster.com/dictionary/tar%20baby> again. 

Why would you not want your post on this topic to be public?

> measurements are entirely correct. Message content and keying speed 
> affect the clicks in addition to the shape of the CW envelope.

Jukka's measurements were of a relatively clean radio compared to the 
dirtier ICOM and Yaesu models. For those dirtier rigs, keying wave-shape 
will be more significant.

Also, the average power in the sidebands is not what matters, it is the 
peak power (i.e., the transients) that causes the QRM.

73, Jim K9YC

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