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Message-ID: <3.0.1.16.20000522155342.2e97c76c@mail.cc.kuleuven.ac.be>
Date: Mon, 22 May 2000 15:53:42
To: rsgb_lf_group@blacksheep.org
From: "Rik Strobbe" <rik.strobbe@fys.kuleuven.ac.be>
Subject: Re: LF: Re: Re: Re: Best tone for aural copy
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>The Swedish thesis shows that around 500Hz the ear/brain is at its best in
>copying wek signals in noise.
>
>73, Dick, PA0SE

For many years I was used to a 800Hz tone for CW (just happened to be the
'sidetone' in my tranceiver). But on LF I found out that I had a better
copy at lower frequencies, also because the IF-shift of my TS440 seemed to
be more effective here. After some experimenting I ended up with best
results at 400Hz.
That is a bit less that the 500Hz tone from the Swedish thesis, but maybe
it is just my brains that are 25% slower than those of the average
(Swedish) ham.

73, Rik  ON7YD