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LF: Re: Re: Re: Best tone for aural copy

To: [email protected]
Subject: LF: Re: Re: Re: Best tone for aural copy
From: "Dick Rollema" <[email protected]>
Date: Mon, 22 May 2000 14:52:44 +0200
Organization: Freeler
References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: <[email protected]>
To All from PA0SE

Dave, G3YMC wrote


3.  On the subject of receive notes.  I also noted that Harry optimises
his
filter for 1kHz.  Many operators including myself prefer a lower note,
600-800Hz or even lower.  I suspect it is the optimisation of the
frequency
relative to background noise, and with a narrow audio filter may be less
noticeable>
The Swedish thesis shows that around 500Hz the ear/brain is at its best in
copying wek signals in noise.

73, Dick, PA0SE



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