Sverre Holm (LA3ZA) wrote > To sum up the interesting studies from the early 90's on Morse code > recognition and the effects of pitch frequency, signal to noise ratio and > code speed I posted the abstracts of some of the Montnemery papers on my > blog as well as some key illustrations. > > See > http://la3za.blogspot.no/2013/10/studies-on-morse-code-recognition.html
Sverrre I posted the following on your website but am repeating it here in the hopes Fabian DJ1YFK will see it and notify me when his SNR challenge is available on LCWO.net: Hi Fabian Copying weak CW signals and psychoacoustics has been a passion of mine since I was first licensed (1957). More recently it has taken the form of DXing on the low bands (especially Topband) and SOTA operating (QRP from summits). I've signed up on LCWO and hope you will implement your SNR challenge. BTW here is a related website by AB7E about weak signals: http://www.ab7e.com/weak_signal/mdd.html Many years ago I discovered 270 Hz was my personal optimum pitch for copying very weak signals on the low bands. This was using a TS-930S which had continuously adjustable pitch. I even found 240 Hz was sometimes useful. I was disappointed that the Elecraft K3's lowest pitch setting is 300 Hz but have learned to "live with it". 73, Bill W4ZV -- View this message in context: http://elecraft.365791.n2.nabble.com/CW-Pitch-Resolution-tp7579837p7580085.html Sent from the Elecraft mailing list archive at 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
