I don't know but am happy to speculate wildly...
Unlike straight keys and bugs, cootie key (sideswiper) sending is almost
universally heavily weighted: the time between dits and/or dahs is less
than the duration of a dit. My guess is that this particular rig's
debounce(?) processing routine could be having trouble interpreting that
keying characteristic. (I once had a PicoKeyer that had a peculiar
problem with straight key input above a certain speed, later fixed in
firmware.)
BTW, heavily weighted code can be perfectly readable to CW operators,
may even be preferred under some propagation conditions or noise,
whereas software decoders may have a problem with it. (RBN & fldigi
decoders seem to have a problem interpreting more heavily weighted
sending.) IOW, don't automatically blame the key/operator for poor sending.
It would be useful to mechanical key users if modern rigs (hint: K4) had
an option for varying the parameters in the debounce (or whatever)
routine to suit various characteristics of bugs, sideswipers & straight
keys. It is not uncommon for a key to work fine with one rig and produce
keying glitches on another.
Hoping to be using my 100+ year old Bunnell Double Speed cootie to key a
brand new K4 at some point...
73,
Drew
AF2Z
On 06/09/21 09:58, Louandzip via Elecraft wrote:
>>>>rig will not key properly with a sideswiper key. Dits merge becoming a solid dash over 22 wpm...
John K7FD<<<
How does it know you're using a cootie? I exceed 22 wpm with a straight key or
a bug, sometimes operating 35wpm and higher the latter with no probs. Straight
key, cootie, or bug are all just a contact closure. How would the rig know the
diff?
An external keyer is still essentially a contact closure and will go higher yet.
Lou W7HV
On Wednesday, June 9, 2021, 7:15:12 AM MDT, Skip Davis via Elecraft
<[email protected]> wrote:
Wes I don’t know about your K3 except mine has both a Mic and Headphone jacks on the front left hand side :)
Skip Davis, NC9O
Sent from my iPhone
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