[CQ-Contest] Click, click, click...

Joe Subich, K4IK w8ik at subich.com
Sun Feb 25 11:13:04 EST 2001

 > Is Tom saying that the clicks/keying waveform harmonics are being
 > developed at an earlier stage, and amplified along with the desired
 > signal, so that they appear even if the RF envelope's rise and
 > fall times are moderate?

The "clicks" are not necessarily related to problems with they keying
waveform in some "modern" transceivers.  If their synthesizers do not
stabilize BEFORE the production of RF (a very real possibility with
QSK), the frequency instability (sweep, overshoot and settle) will
"broaden" a signal much like old-fashioned "hard edge" keying.  

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