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| To: | [email protected] |
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| Subject: | Re: LF: Re: Re: Re: Best tone for aural copy |
| From: | "Rik Strobbe" <[email protected]> |
| Date: | Mon, 22 May 2000 15:53:42 |
| In-reply-to: | <009501bfc3ef$311dcd60$370235d5@w8k3f0> |
| References: | <[email protected]> <[email protected]> <001c01bfbcbe$1b0fed60$a747b28f@w8k3f0> <[email protected]> <007601bfbf7a$c587f440$120035d5@w8k3f0> <[email protected]> <000901bfc099$3c9525c0$40d899d4@w8k3f0> <[email protected]> <002b01bfc239$ea9019e0$2546b28f@w8k3f0> <003301bfc33c$fe42ada0$d097073e@dave> |
| Reply-to: | [email protected] |
| Sender: | <[email protected]> |
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 |
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