[Elecraft] Internal or External amp for K2..what are my options

[Guy Olinger K2AV]

Modification would be quite the chore.

The KPA100 talks to the K2 over the aux bus using proprietary telemetry
protocols.  Otherwise the 100 watt amp could not be used stand-alone.  One
common enough separate-from-K2-enclosure method is to put the KPA100 and
KAT100 in a separate EC2 project box.  This still works because the K2
communicates to the KPA100 in the separate EC2 box via the auxbus in the
connecting control cable.

I have that arrangement here.  Very slick and behaves just as if they were
in the same box.  That way I get to keep the battery operation at 10 watts
and station operation at 100.  The same jack on the back of the K2 feeds
both RS232 to the computer and auxbus et al to the KPA100.

73, Guy.

On Mon, Jun 11, 2012 at 12:44 PM, hawley, charles j jr <
c-hawley at illinois.edu> wrote:

> Why do folks say only with K2? Can't it be modified?
>
> Sent from my iPad
>
> On Jun 11, 2012, at 10:59 AM, "Ariel Jacala" <ny4g at hotmail.com> wrote:
>
> > Steve
> >
> > HFPacker version 4 gets you 35 watts out - this is a kit and will work
> with any QRP rig - cost is 259 USD
> >
> > KPA100 is internal to the K2/100 (essentially a new top) - check the
> Elecraft price list - will only work with a K2 - this is what I have.
> >
> > Juma PA100 is a very nice 100 watt linear for about 460 Euros and will
> work with any rig
> >
> > Or you can wait for the KXPA100 which will work with any QRP rig
> >
> > Ariel NY4G
> >
> > Sent from my iPad
> >
> > On Jun 11, 2012, at 8:49 AM, "Stephen Roberts" <steverob at shoreham.net>
> wrote:
> >
> >> Is there a thread that looks at options for external amps for the K2?
> If I use an external amp, do I also need an external tuner? I want to get
> an amp, and getting the internal amp seems like the most sensible way to
> go, but I'm also thinking that an external amp I could use for other radios
> in the future might be the better solution. Are there off the shelf 100w
> amps that might fit the bill? I see Ten Tec's new amp is $700+....not going
> to happen at that price.
> >>
> >> 73,
> >> Steve
> >>
> >>
> >>
> >> -----------------------------------------------
> >> Steve Roberts
> >> W1SFR
> >> Elecraft K2
> >> Sudbury, VT
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
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