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See also CW Iambic A and B

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Date: Wed, 03 Apr 2002 01:24:33 +0000
From: jacksonharbor at att.net
To: igeq100 at iupui.edu
Cc: qrp-l at lehigh.edu
Subject: [123878] RE: Keying modes
Message-ID: <20020403012434.FWQQ24238.mtiwmhc21.worldnet.att.net at webmail.worldnet.att.net>

>method of paddle keying that I would call "last-paddle 
>priority" mode, and

Rich -

At first glance, this sounds like the Ultimatic mode.  

Ultimatic was apparently the original dual lever keying
mode, developed in the 1950s.  

I included a version of Ultimatic in the Island Keyer II
and have a short paper on the web page (the link is at
the bottom of the page):

<http://jacksonharbor.home.att.net/ik2.htm>

Best Regards,

Chuck Olson
Jackson Harbor Press

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Date: Wed, 03 Apr 2002 01:33:33 +0000
From: jacksonharbor at att.net
To: k7qo at earthlink.net
Cc: qrp-l at lehigh.edu
Subject: [123879] RE: Iambic Keying 101 --- Part 1
Message-ID: <20020403013334.SQNL38.mtiwmhc22.worldnet.att.net at webmail.worldnet.att.net>

>Chuck Olson, WB9KZY, writes in his A and B mode
>article, "The mode B keyer sends an additional element
>opposite to the one being sent when the paddles are
>released."  Sorry Chuck.  Wrong answer.  You need

Chuck -

Sorry, for my keyers, you have the wrong answer ;)  That
article was intended mainly to support them and the way
they work - and for mode B, that's the way I do it
because, that's the way I understood it.

In any case, for me, the distinction is a very fine one.

I'll look into it - I will see if I can add
the mode B that you've detailed.

Best Regards,

Chuck Olson, WB9KZY
Jackson Harbor Press

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Date: Tue, 2 Apr 2002 19:07:21 -0800
From: "Trevor Jacobs" <fxtech at earthlink.net>
To: <dsirait at centrin.net.id>,
        "Low Power Amateur Radio Discussion" <qrp-l at lehigh.edu>
Subject: [123887] Re: Mode A and B what is the current standard?


Hi Donny,

The Tick (PIC Based) Keyers do both modes. After reading Chuck's e-mail
I think I'm more confused than I was before ;-). I asked him for a
timing diagram, maybe that'll clear it up.

72/73's
Trev
KG6CYN
----- Original Message -----
From: Donny Sirait <dsirait at centrin.net.id>
To: Low Power Amateur Radio Discussion <qrp-l at Lehigh.EDU>
Sent: Tuesday, April 02, 2002 6:31 PM
Subject: Mode A and B what is the current standard?


> Dear Elmers,
>
> With the going thread on mode A and B I am wondering what is
> the current standard for keyers nowadays??
>
> Formerly we were stuck with the curtis chip which offer mode A or B
> but with the current PIC keyers what is the standard??
>
> Before I am using a CMOS keyer from an article by AD7I in QST
> does anyone knows what mode is that keyer?
> (anyway the keyer fails due to bad CD4093 quality available locally hi
hi
> so I returned to my old trusty straight Kenpro KK50 key)
>
> Thanks for reading.
>
> vy 72 de YB1BOD
> Donny

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