The Icom IC-756PRO has rise and fall times on the keying waveform
selectable from 2 ms to 8 ms. I have verified by scope examination of the
r-f output waveform that these numbers apply to the actual output signal
waveshape.
It should be no problem for any PRO to be operated with the
ARRL-recommended 5 ms rise and fall time if the user desires.
I use the 2 ms setting as I prefer a "hard" keying sound. Thus far, I have
never received any report of key clicks or other keying anomolies using
that setting.
Based upon this gentleman's report, however, I will monitor the PRO keying
on another receiver and also double-check the CW output bandwidth with a
spectral estimate of a string of dots.
72/73/oo, George W5YR - the Yellow Rose of Texas
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
Amateur Radio W5YR, in the 56th year and it just keeps getting better!
QRP-L 1373 NETXQRP 6 SOC 262 COG 8 FPQRP 404 TEN-X 11771
Icom IC-756PRO #02121 Kachina #91900556 IC-765 #02437
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> >A friend has an IC-756 PRO which has clicks extending out at least +/- 1
> >kHz.
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