[Elecraft] 2 radios, 1 antenna... finally a prototype!

[Don Wilhelm]

Yes folks, Jack and I collaborated on the design of this one.  I started
with a few logic gates, and Jack kept saying 'do it with no active devices -
anyway, you can see the result in Jean-Francois website and judge for
yourself.

Since Jean-Francois gave me credit in his posts, I thought I should pass
along extra credit where it is due, and Jack deserves it.

BTW, if I ever get both my K2s to the operating position instead of one in
th eworkshop and the other for operating, I will be using this arrangement
myself - not fully SO2R, but a reasonable compromise suitable for my
operating.

73,
Don W3FPR

> -----Original Message-----

>
> There is one important step in the construction of the circuit that
> should make it work well.
>
> Now it is important to take this step...
>
> What is the step?
>
> Contact W6FB in the Phone Sweepstakes - I need the VA2 QSO!
>
> :-) :-) :-)
>
> Good luck making it run. Don and I had fun collaborating on that one...
>
> On Nov 19, 2005, at 3:02 PM, JEAN-FRANCOIS MENARD wrote:
>
> > Hi,
> >
> > I finally did a first prototype of an interface to link two K2/
> > KPA100 on one multi-band HF antenna using Don W3FPR schematic. For
> > my first "from scratch" project, it is not too bad. I first began
> > to do a PCB. I used two fast SPDT 16A relays from Omron and SO-239
> > connectors are Amphenol.
> >
> > I will try it tonight.... But on the bench test, everything was
> > working fine... Maybe I will need to put a few caps to filter some
> > RF, I'm not sure.... I will tell you later tonight. This is my
> > first prototype version... My « main goal » is to have a interface
> > like this one, but also one mic and one paddle for 2 radios.
> >
> > Unfortunatly, I forgot to take picture of my PCB. But I will put
> > Don's schematic on my website this week.
> >
> > Take a look... http://homepage.mac.com/jfmenard/PhotoAlbum55.html
> >
> > 73
> >
> > P.S. Many thanks to Don W3FPR for his help. ;-)
> >
> > =============================================
> > /¯\/¯\/¯\/¯\/¯\/¯\   JEAN-FRANCOIS MENARD
> >  V  A  2  V  Y  Z
> > \_/\_/\_/\_/\_/\_/
> >
> > FISTS #11896
> > Elecraft K2 #4130
> > Elecraft KX1 #999
> >
> > http://homepage.mac.com/jfmenard
> > =============================================
> >
> >
> >
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>
> -Jack Brindle, W6FB
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