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LCWO Discussion Forum [Atom LCWO Forum Feed]

This is a simple discussion forum for LCWO users. Feel free to use it for any kind of discussion related to this website.

Thread: Dot-dash timing

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AuthorText


Posted: 2008-11-02 15:41
Something that's been really bugging me over the last few days is how you calculate the times that a dot takes and the time a dash takes at different speeds. Have you created a formula?

Many thanks,

Matt. I
Administrator


Posted: 2008-11-02 16:09
The length of a dot in milliseconds is 1200/wpm. A dash is three times as long, pauses between letters also three dot-length and a pause between two words is 7 dot-lengths.

This will get you the timing for the PARIS standard (i.e. 60wpm means you can send 60 times PARIS in one minute). It's simple math: A minute has 60 seconds, PARIS (including the space after it) has 50 "elements" (dot-length).

So, for one wpm you'd need a dot length of 60/50 seconds, for x wpm you need a dot length of 60/(x*50) seconds which is the same as 1.2/x (easier to remember)...

73, Fabian


Posted: 2008-11-02 23:50
Wow - thanks very much for this. I've always been really interested in exactly how it is calculated.

Thank you very much again!

73 de Matt. I

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$Id: forum.php 62 2015-01-12 17:34:44Z fabian $