[Elecraft] K3 CW speed request

drewko1 at verizon.net drewko1 at verizon.net
Thu Jul 3 11:18:21 EDT 2008


Ok, using your formula, and allowing for my measurement of dah periods
(not just dah sound portion of cycle), substituting equivalent dit
sound time (at assumed 3:1 ratio), I get the following conversions:

22 wpm K3 readout  
measured 0.207 dah period 
51.8 msec dit sound equivalent at 3:1 ratio
23.2 wpm calculated by the "1200" formula

21 wpm K3 readout 
measured 0.219 dah period
54.8 msec dit sound equivalent at 3:1 ratio
21.9 wpm calculated by the "1200" formula

73,
Drew
AF2Z


On Thu, 03 Jul 2008 07:39:55 -0700, andy, ae6y wrote:

>Those dashes sound a little long.  The formula normally used to calculate 
>lengths of  elements is
>dot length (msec) equals 1200 divided by wpm.
>  Thus, at 22 wpm, the dot length should be 54.5 msec.  Dashes are normally 
>three times as long, i.e., 163.5 msec.
>  73, andy, ae6y



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