qrss dot length

[Andre' Kesteloot]

Rik Strobbe wrote:

> At 02:31 11/01/01 -0000, WD4KPD wrote:
> >good day all....anyone know how dot length translates to WPM ?
> >i have seen some QRSS speeds listed in WPM on the net especially concerning
> >lowfer/medfer beacons in USA.
>
> WPM (Words Per Minute) is based on the 'PARIS' system, where PARIS is taken
> as a standard word that has a length of exactly 50 dots (including word
> spacing).
> As a result  1 WPM = 50 dots per minute , 12 WPM = 600 dots per minute and
> so on ...
> Or the other way arround at 1 WPM a dot takes 60/50 = 1.2 seconds, at 12
> WPM a dot is 0.1 second long.
>
> So : dot length (seconds) = 1.2/WPM
>
> 73, Rik  ON7YD