[Elecraft] K3/K3s keying with bugs, ponderings

[Walter Underwood]

From a quick search, contact bounce appears to last less than 10 ms, which is similar to the rise time for a CW signal. Dit duration at 70 wpm should be 17 ms. Debounce should be similar to shaping the rise time. 70 wpm is certainly close to the limit, even for the signal shaping.

https://www.eejournal.com/article/ultimate-guide-to-switch-debounce-part-4/ <https://www.eejournal.com/article/ultimate-guide-to-switch-debounce-part-4/>
https://morsecode.world/international/timing.html <https://morsecode.world/international/timing.html>

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On May 10, 2021, at 9:17 AM, Roy <k6xk at ncn.net> wrote:
> 
> Relating to contact bounce, I wonder what the typical length of a bounce is? We hear QRQ stations operating at 60+ wpm all the time. If Elecraft designed to smooth out such short "dots" from semi-auto key bounce, then perhaps a K4 would not allow 70+ wpm speeds to be sent either?
> 
> 73,  Roy   K6XK
> 
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to wunder at wunderwood.org