[Elecraft] Interesting QSO

[Wes]

I use 420 Hz +/- these days when DXing.  With 40 year younger ears I used to use 
500-600 Hz on MS and EME.

On 3/13/2021 11:50 AM, Sverre Holm (LA3ZA) wrote:
> Wayne.
>
> A CW sidetone pitch of 400 Hz is consistent with what little research there
> is on this. A paper from 1992 stated 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