John,
There is an alternative to the KIO2. The KAT100 uses only a few control
signals from the K2 and doesn't use the RS-232 interface. You can easily and
inexpensively build a replacement for the control portion of the KIO2. Look at
the circuit diagram for the KIO2 and for the KAT100 and the wiring of the
cable between them. Only the ground and pins 6,7,8 and 9 are used (and one of
those isn't needed, but I don't have the circuit diagram in front of me to look
at right now). I ordered the plug that goes into the control board and the 15
mh inductors from Elecraft, and found everything else that I needed at my local
RadioShack (the rear panel connector, a cable connector, a few capacitors and a
small circuit board - the 2nd cable connector and the cable wire itself comes
with the KAT100). If you want, I can send to the circuit diagram and layout of
the 2 little circuit boards.
One of the web pages that has information about building the KPA100 and
KAT100 into a single EC2 cabinet has a section on using the KAT100 without the
KIO2. I started with that, but found that the circuit diagram didn't quite
agree with the Elecraft schematics or the cable wiring.
Eventually I plan to add a KPA100, but probably not for a quite while
and I didn't want to have to purchase the KIO2 when I would get one with the
KPA100.
73,
Bob W1SRB
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Don Wilhelm
Sent: Friday, July 07, 2006 9:30 AM
To: John Bahun; [email protected]
Subject: RE: [Elecraft] ATU K2 Question
The KAT100 uses a cable to connect it to the K2, and that cable plugs into
either the KPA100 AUX I/O or the AUX I/O connector in the QRP lid.
So the answer is yes if and only if you have the KIO2 installed in the QRP
lid. If you do not have the KIO2, then you will have to wait until you
build up the KPA100 to use the KAT100 tuner.
73,
Don W3FPR
> -----Original Message-----
>
> I have completed my basic QRP K2. I have the KAT100 tuner. My
> question is this...
>
> Can I use the KAT100 tuner in QRP mode without adding the 100 Watt
> Amplifier? Or should I build the 100 Watt Module and then build the
> KAT100 Tuner?
>
>
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
