[Elecraft] K2 Upgrade

[Guy Olinger K2AV]

I have to vouch for the separated 100w and ATU in the EC2 case.  With the
two cpu's talking to one another over the proprietary bus, it is really
seamless.  The power knob cranks all the way up to 100 watts when the KPA
is attached and on.  I get to keep my battery operated K2/10 with it's own
ATU.  The portable/battery operated mode with ATU is extremely handy for
field work on antennas, including specifying matching components needed to
put an L network at the antenna head of a feed line to flatten SWR over the
coax.  Bring it inside and plug it in to charge the battery and run a
seamless 100W QSK.

73, Guy

On Sat, Apr 21, 2012 at 11:42 AM, Jim Wiley <jwiley at alaska.net> wrote:

> Ron -
>
>
> You may want to consider mounting the KPA-100 and the KAT-100 ATU in a
> separate EC-2 enclosure.  That allows you to keep the basic K2 "as is"
> for portable use, while still retaining the 100-watt capability for home
> use.  I have taken this route, and it works well (for me).  There is
> some additional cost, but not all that much, and the added versatility
> is quite useful.  You will need to obtain a KIO-2 interface module  for
> the K2 if you  don't already have one, and build a cable to connect the
> serial data.  .  This is needed to route the control signals to and from
> the 2 boxes. Also, one change I made while doing this was to leave the
> speaker in the base K2, and not install a speaker in the KPA-100,
> further simplifying things.  The assembly is easy, and no hurdles need
> to be jumped.  A tutorial, complete with pictures, is available.
>
>
> Your mileage, of course, may vary.
>
>
> - Jim, KL7CC
>
>
>
> Ron Polityka wrote:
> > Hello,
> >
> >  I have been selling off some of my other rigs to down size
> > the shack.
> >
> > Now I want to upgrade my K2 QRP rig to a K2 100 watt rig.
> >
> > >From what I am looking at I will need to get the 100 w kit
> > and the 100 w ATU.
> >
> > I will need to take out the current ATU for QRP.
> >
> > I am on the correct path?
> >
> > 72 and Thanks,
> > Ron Polityka
> > WB3AAL
> >
> > K1 - SN 01011
> > K2 - SN 01392
> >
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