Hi Christian,
Yes i know. There are even special circuits to improve the shape of the
CW slope, giving better readability. See attachment.
73, Stefan
Am 28.09.2013 13:43, schrieb C. Groeger:
BTW, Stefan,
under difficult conds with low signal strength (which is the case on 630 m)
hard keying greatly enhances readability of your CW !
And if you like QRQ, hard keyed CW is really essential for good copy!
You can check that easily on Hf, QRQ op's use hard keying...
73, df5qg
Christian Groeger
Stefan Schäfer<[email protected]> schrieb:
Am 27.09.2013 20:51, schrieb Clemens Paul:
[...]
If you are seriously interested in generating a key click free CW
signal,there's an
article about that
in QST 5/97 and 6/97 dealing with class E amps which would also apply to class
D amps.
73
Clemens
DL4RAJ
Yes.
Or that one: http://www.classeradio.com/classh.htm
I even built something similar some months ago. It is possible to adjust
the power from 0...> 1 kW with a small potentiometer. Somehow
fascinating. It was intended to send slow hell on the LF PA, not key
click free CW. The project is maybe 90% finished but then other projects
got priority. Image:
https://dl.dropboxusercontent.com/u/19882028/LF/20130927_211117.jpg You
can read the names of some ICs :-)
BTW when will your MF PA be finished?
73, Stefan/DK7FC
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