K3 Keyer speed?

[Jim AB3CV]

Someone else posted a question about the K3 keyer sending faster than
indicated. I'm getting the same feeling as well, e.g. 25 wpm is more like
27wpm.

Anyone else?

jim ab3cv
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[John Oppenheimer]

Using an oscilloscope to measure dot leading edge to dot leading edge,
therefore ignoring weight. K3 in TX mode. There is some timing jitter,
used average observed values. Using the formula DOTms = 1200 / WPM

K3 WPM ms DOT ms WPM
15 156 78 15.4
18 127 63.5 18.9
20 116 58 20.7
25 91.2 45.6 26.3
30 75.2 37.6 31.9

John KN5L

On 01/31/2013 09:01 PM, Jim Miller wrote:
> Someone else posted a question about the K3 keyer sending faster than
> indicated. I'm getting the same feeling as well, e.g. 25 wpm is more like
> 27wpm.
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[Jim AB3CV]

I also tried testing against RBN and at a K3 menu speed of 25wpm I got 25
and 26wpm reported. I did this with a preprogrammed memory since my sending
isn't that good yet.

So it's not far off. I'm satisfied.

73

jim (who needs a lot more practice...)
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