[Elecraft] CW listening pitch

[Sverre Holm (LA3ZA)]

There is evidence that it is advantageous with a low tone for the pitch
(asuming normal hearing). Some studies give evidence for an improvement in
recognition rate as the pitch is lowered and it more or less seems to level
off at 500 Hz, except for the lowest SNRs where recognition even improves at
a pitch of 250 Hz. 

Some of the research is summarized here (look for paper 2):
http://la3za.blogspot.no/2013/10/studies-on-morse-code-recognition.html






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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
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