On Mar 25, 2013, at 1:23 PM, AG0N-3055 wrote:
Andy, K0SM has a very nice look at the K3 reduced-bandwidth FSK
keying.
(Now available to all as Beta DSP rev. 2.8.)
http://www.frontiernet.net/~aflowers/k3beta/
I'm not a K3 owner, but that is quite impressive. Very well done.
I'm
wondering if there is any work being done along those lines for CW?
The K3 and KX3 use an optimal, raised-cosine (sigmoidal or S-shaped)
keying envelope. As a result, both rigs have CW keying that's crisp
but occupies very little bandwidth. The consensus is that it's just
about perfect already.
73,
Wayne
N6KR
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