[Elecraft] [K3] Magic CW box and PIC programming

[Joe Subich, W4TV]

No PIC or microcontroller routine is going to be able to 
distinguish between paddles with the left paddle connected 
to the tip and those with the right paddle connected to the 
tip.  

I agree with Ron, build a box with two toggle switches 
(or sets of jumpers) per jack: 
  1) a DPDT switch to reverse tip and ring,  This handles 
     the "left/right paddle on tip" and "straight key on 
     the ring" issues
  2) a SPDT switch to connect the ring "through" or to 
     the sleeve (ground).  This handles straight keys 
     using a mono plug or straight keys connected 
     between tip and ring. 

These two switches (with a stereo input jack and a stereo 
plug to the rig or keyer) handle any possible combination 
of key and connections I can imagine. 

73, 

   ... Joe, W4TV 
  


> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ron 
> D'Eau Claire
> Sent: Tuesday, November 10, 2009 12:39 PM
> To: 'Arie Kleingeld PA3A'; elecraft at mailman.qth.net
> Subject: Re: [Elecraft] [K3] Magic CW box and PIC programming
> 
> 
> I agree Arnie, if I'm setting up stuff to operate in my own 
> shack. However, if I wanted to be able to use my rig with 
> various other people's keys an easy-to-configure interface 
> box would be very attractive. 
> 
> I would opt for a box with the connectors Dick mentions, but 
> with a few mini toggle switches to make the connections to 
> the various outputs to the rigs as needed.
> 
> Guess that's the difference in outlook between "hardware" 
> types like me and "software" types, Hi!
> 
> Ron AC7AC
> 
> 
> -----Oorspronkelijk bericht-----
> Hi Dick,
> 
> You can 'PIC' just about anything. But in this case I will 
> change the connection of a few wires if necessary using a 
> soldering iron. Simple solution for a simple problem.
> 
> 73
> Arie PA3A
> 
> 
> -------------
> 
> <<I still walk around with my idea of building a little box 
> with 6 to 8 stereo jacks on the front and one or two outputs 
> to key-in to tranceiver(s).  The idea is that everybody wires 
> a key or paddle differently. (straight key to tip, sleeve or 
> both;  single paddle to tip, sleave or both;  double paddle 
> left to tip right to sleeve or just other way around)?
> 
> Let me know your thoughts
> Thanks,
> Dick PA3CW  >>
> 
> 
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