Mike,
The KAT2 is the QRP version of an ATU used with the base K2. It can handle
up to 20 watts. If you need an ATU to work with your KPA100, then you
would need the higher KAT100 that will handle 150 watts.
The KAT2 and KIO2 mount in the top cover of the base K2. The KPA100
replaces that whole cover. So neither board could be used with the KPA100
installed (as well as the KBT2 battery option).
Many ops who upgrade their K2'S with the KPA100, simply keep the top cove
around with those options installed and in the event they want to operate
QRP, they simply swap the top cover with the KPA100. This is the wonderful
nature of the modular design of the
K2.
Again, I hope this helps and is not clear as mud.
73,
Dave, W8FGU
On April 27, 2020 14:44:02 Mike Kopacki <[email protected]> wrote:
Thanks, Dave.
You’re saying that the KAT2 that I have now has to be replaced? I wonder
if that’s included in the KPA 100 kit?
73,
Mike NJ2OM
Sent from Mail for Windows 10
From: Dave Van Wallaghen
Sent: Monday, April 27, 2020 2:24 PM
To: NJMike; [email protected]
Subject: Re: [Elecraft] K2 Looking for a KPA 100 amplifier
Mike,
The amp will fit just fine with your current configuration. Although, the
KAT2 and KIO2 boards will stay with the original top cover. The KPA100
includes the KIO2 circuitry. If you need an ATU for use with the KPA100,
then you will want a KAT100 ATU or other brand that can handle 100+ watts.
Hope this answers your question.
73,
Dave, W8FGU
On April 27, 2020 14:18:04 NJMike <[email protected]> wrote:
I built K2 #4619 some years ago. Now I am considering adding the KPA 100
amplifier. When I bought and built the K2, I also built and installed the
following option3:
KAT2 automatic antenna tuner
KSB2 SSB adapter
KDSP2 DSP filter and internal clock
KIO2 AUX I/O module
KNB2 noise blanker
K160RX 160 meter module
MH2 microphone
On the technical side, I need to know if the amp can be installed after
installing all these options.
On the purchasing side, I guess my options are purchasing from Elecraft for
$650 (which I am sure is worth the price), or buying one from someone who
bought one but never built it. I am retired now so I'm trying to spend as
little as I can.
Please let me know if you have one that you'll sell, and if you know the
answer to the first question.
Thanks!
Mike NJ2OM
--
Sent from: http://elecraft.365791.n2.nabble.com/
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