I would love to have a CW decoder do the work of copying CW for me, but...
Most CW that I work is very weak-signal. If not at noise level is actually below noise. I have found no computer decoding sw that will work into the noise. Solution? Its called JT65 (or one of its variants). JT65 will decode at 28 to 30-dB below noise level (SSB bandwidth) with signals below about -20 dB not even strong enough to hear with the human ear.
But it takes a computer as I know no one that can copy JT65* by ear. So......CW is for human copy and JT65 and other digital modes are for computer copy. *not referring to the shorthand codes which are simple to see/hear.
Not a scientific comparison but it "seems" that the CW text decoder in FLdigi works a bit better than the one in my K3. But all require a strong clear and well formed CW character to perform well; I think this pretty much requires machine precision generation of CW. Almost all CW ops have a "fist" which "colors" their sending. The human mind can accommodate and even appreciate this; the machine - not!
My conclusion is that I must rely on myself for copying CW, and not a machine. But this is not to discourage those writing sw to get a better CW decoder.
73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
