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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