For Coherent CW - go to http://www.google.com/
Type in Coherent CW -- gets lots of articles

Quick bottom line
Coherent CW is morse code with precise timing and frequency accuracy, so you
can use 20Hz filters and integrators to get remarkable results from very
weak signals.

--
CL -- I doubt, therefore I might be !






wrote in message
oups.com...
I've never before heard it described as "Coherent CW", but CW is hard
to avoid on any of the HF bands.

Harry C.