[Elecraft] KX2 and N1MM F-Keys

[Ryan Noguchi]

Can Elecraft or any other knowledgeable individual explain why the KY commands are limited to 24 characters? 
This limitation seems to come up in this list or the KX3 Yahoo list about once a month, but I've never seen (or found through searching the wider web) an explanation of what drives the 24 character limit. I'm pretty sure I'm not the only one who could use any larger character limit, even if it's just a few additional characters.  
73, Ryan AI6DO

      From: Bill Conkling <nr4c at widomaker.com>
 To: K5WA <K5WA at Comcast.net> 
Cc: elecraft <elecraft at mailman.qth.net>
 Sent: Thursday, July 7, 2016 7:43 AM
 Subject: Re: [Elecraft] KX2 and N1MM F-Keys
   
>From my own experience, KY commands work but are clumsy, and there is a l limit to how many characters can be sent with one command,  The simple switching circuit is quite easy to do and works extremely well,  

All it takes is a 2N2222 transistor with base connected to the proper pin (4 or 7) thru a 1.2K (1k -1.5K) Ohm resistor,  The collector goes to the plug shield and the emitter goes to the tip of the plug.

Plug this into the standard KUSB or standard serial cable.

…bc nr4c

> On Jul 7, 2016, at 10:26 AM, K5WA <K5WA at Comcast.net> wrote:
> 
> Fred,
> 
> One tap of the paddle stops transmission when using KY so you really don't
> need ESC.  
> 
> Bob K5WA
> 
> From: Cady, Fred [mailto:fcady at montana.edu] 
> Sent: Thursday, July 7, 2016 7:15 AM
> To: K5WA; elecraft at mailman.qth.net
> Subject: Re: [Elecraft] KX2 and N1MM F-Keys
> 
> When using KY commands in N1MM does hitting escape stop the transmission?
> If no, that would be a disadvantage to me.  A couple of transistor switches,
> actually just one because you don't need PTT usually, is pretty easy to
> build.  There are lots of examples of circuits out there.
> Cheers,
> Fred KE7X
> 
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