[Elecraft] KPA100 and 100W ATU in separate EC2

[Don Wilhelm]

Dom,

I do not have the website information, but I think I can describe it on 
words - it is not that difficult.
If you are adding the KAT100 as well as the KPA100, order the KAT100-2 
as well as the KPA100. (If you already have a KAT100-1, there is a 
conversion kit available from Elecraft - or at least used to be)

The KAT100-2 contains all the connectors for plugging in the KPA100 
(except for the speaker cable), connect the base K2 RF (the ANT1 jack if 
the KAT2 is included) to the RF IN jack on the KAT100 and connect the 
KAT100 control cable between the KIO2 option in the base K2 and the DB-9 
jack on either the KAT100 or the KAT100.

If you do not wish to use the KAT100, it is just as easy.  Drill a hole 
in the bottom of of the EC2 enclosure (right rear area) to mount a BNC 
connector.  Solder an E620012 header to the back of the BNC jack to 
provide a connector to plug the KPA100 input coax into - you will have 2 
of those parts with the KPA100 kit - they are normally used at K2 RF P3 
and P6.  Make certain the orientation is correct, the center conductor 
of the input coax must connect to the BNC jack center conductor.

Download the KAT100 manual from Elecraft and build the control cable 
that is shown in that manual.

Connect the base K2 RF output to the BNC jack on the EC2 enclosure and 
the control cable to the DB-9 connector on the KPA100.  The connector 
with 2 cables must be plugged into the KIO2 if you use the connection to 
the computer.

Just one additional caution - do all the KPA100 alignment and 
calibration and checkout while connected directly to the base K2 (no QRP 
top cover), and check out the KAT100 using that same configuration.  
Once everything works in that configuration, move the KPA100 to the EC2 
and put the QRP top cover on the K2 - connect the 2 cables between the 
K2 and EC2 and it should work OK.

73,
Don W3FPR

On 5/5/2013 5:37 AM, dombaines at yahoo.com wrote:
> Hi,
>
> Been done by a few before...
>
> Has anyone got the whole of the website and all the diagrams and 
> images *http://www.kk7p.com/k2kpa100.html
> *
> I have the web archive pages but some of the diagrams and images are 
> missing and original site has gone.
>
> Also have http://home.pacbell.net/johngreb/k2_100_in_ec2.pdf
>
> Or anyone got something else?
>