Wayne. A CW sidetone pitch of 400 Hz is consistent with what little research there is on this. A paper from 1992 says that "/All subjects improved their recognition as the frequency was lowered to 500 Hz, some even at 250 Hz./"
See https://la3za.blogspot.com/2013/10/studies-on-morse-code-recognition.html ----- Sverre, LA3ZA K2 #2198, K3 #3391, LA3ZA Blog: http://la3za.blogspot.com, LA3ZA Unofficial Guide to K2 modifications: http://la3za.blogspot.com/p/la3za-unofficial-guide-to-elecraft-k2.html -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ 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]
