Bug simulator

[Don Brown-4]

Hi

A few days ago someone was asking about a firmware change to make the K2
keyer work like a bug. It seems you should be able to do this using the auto
hand key mode and a diode from the dah line to the dit line. With this
wiring keying a dah would work like a hand key and you could hold the key as
long as you want but when you key a dit the diode would disconnect the dah
contact and the dit contact would work normally. This should make the K2
keyer work exactly like a bug. Just a thought. I have not tried it but it
looks like it would work.

Don Brown
KD5NDB
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[Dan Barker]

If you slap it, it should [work like a bug]. If you squeeze, all bets are
off. Element insertion, and all that.

VERY interesting idea, tho. Someone should try this and report back. (I
can't - I have no idea how a bug should act). I've squeezed since before my
first license (N4GMN, a Technician if I recall, I lost the log and it's been
a couple of years).

Dan / WG4S / K2 #2456

<snip>
make the K2 keyer work like a bug.

It seems you should be able to do this using the auto hand key mode and a
diode from the dah line to the dit line. With this wiring keying a dah would
work like a hand key and you could hold the key as
long as you want but when you key a dit the diode would disconnect the dah
contact and the dit contact would work normally.
</snip>

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[Vic K2VCO]

Don Brown wrote:

> This should make the K2
> keyer work exactly like a bug. Just a thought. I have not tried it but it
> looks like it would work.

I've never tried this sort of thing, although some other keyers have an
explictly selectable 'bug mode'.  However, I doubt that it would sound
like a real mechanical bug properly used.  I think the rhythm that is so
pleasing in good bug sending comes from the interaction of the sender's
fingers with the massive lever swinging back and forth over a large
distance and against strong spring tension (all of the above relative to
a keyer paddle, of course).  Bug sending is more than just manually made
dashes.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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[Don Wilhelm-3]

Don and all,

Yes, that is possible electrically, and it will work, BUT - it will drive
you nuts unless you have perfect timing with the dashes with respect to the
start and end of the automatically generated dits - I have tried it with
several keyers including the K2 just for fun.  Mechanical bugs seem to be
more forgiving for me (or maybe it is the tactle feedback that I miss), but
it is certainly easy to try it and see what your results will be - you do
not even have to open up the K2.

73,
Don W3FPR

> -----Original Message-----
>
> A few days ago someone was asking about a firmware change to make the K2
> keyer work like a bug. It seems you should be able to do this
> using the auto
> hand key mode and a diode from the dah line to the dit line. With this
> wiring keying a dah would work like a hand key and you could hold
> the key as
> long as you want but when you key a dit the diode would
> disconnect the dah
> contact and the dit contact would work normally. This should make the K2
> keyer work exactly like a bug. Just a thought. I have not tried it but it
> looks like it would work.
>
> Don Brown
> KD5NDB
>

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[Rick Dettinger-2]

I tried this several years ago.  It worked for a while, but at times it went
into keyer mode.  Don't remember exactly what I got, or why,  but I couldn't
use it.  I havn't had trouble switching from bug to keyer because the bug
has a much heavier action and that acts as a "tell" to get me in the correct
mode.  I now think that I would have trouble using a keyer in semiauto mode.
I would have to set it up like a bug with respect to tension and gap.  These
days, I only use my paddles portable, as the Vibroplex Original is a little
heavy to travel with.  My hand keys tend to be on the large size also.
----- Original Message -----
From: "Don Brown" <[hidden email]>
To: "Elecraft" <[hidden email]>
Sent: Tuesday, January 31, 2006 2:45 PM
Subject: [Elecraft] Bug simulator


> Hi
>
> A few days ago someone was asking about a firmware change to make the K2
> keyer work like a bug. It seems you should be able to do this using the
auto
> hand key mode and a diode from the dah line to the dit line. With this
> wiring keying a dah would work like a hand key and you could hold the key
as

> long as you want but when you key a dit the diode would disconnect the dah
> contact and the dit contact would work normally. This should make the K2
> keyer work exactly like a bug. Just a thought. I have not tried it but it
> looks like it would work.
>
> Don Brown
> KD5NDB
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com

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