[TenTec] ot

N4YG n4yg at comcast.net
Wed Jan 9 18:46:44 EST 2008


You will find that there are several methods of specifying CW speed. I use the definition that you will find in ARRL handbooks, the current one and those dating back several 10's of years. It is quite simple

Words Per Minute(WPM) = Dots Per Second / 2.4

This assumes that the duration of dashes is 3 times the duration of a dot and that the duration of a space is the same as the duration of a dash.

It follows then that the speed can also be found from the number of dashes per second

WPM = Dashes Per Second /1.2

So if you want to find the speed, send a string of dashes and count the number in a 5-second period and divide that number by 6.

Joe, N4YG



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