Bill W4ZV wrote:
>
>
> Another one that Fred K3ZO (many time winner of Dayton CW pileup contests)
> recently mentioned is using extremely low pitch for weak signals. Fred
> said many commercial ops he knew used somewhere in the 2-300 Hz range so
> he thought his favored 400 Hz was rather high!
>
I found the exact quote from Fred which was on the PVRC reflector:
"With a rig like the Orion the tone you set your sidetone monitor to is
also very important. I like to copy CW at 400 Hz, and I have been
surprised when people have commented that 400 Hz is a much lower tone
than they like to use. I believe it is established science that the
lower the tone you use to copy, the better your ear is at separating
out tones which differ in frequency very little from each other. I actually
thought I was using a rather high choice of tone, as I recall some
articles I read years ago, perhaps by professional ship-to-shore
ops, advocating 200 or 300 Hz as their tones of choice."
73, Bill W4ZV
--
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