ATU K2 Question
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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? TIA Jb John J. Bahun DTS Engineer CoreOS/Hardware Apple Computer Inc. 3 Infinite Loop - Mail Stop 303-2T Cupertino, California 95014 -------------------------------- Be the first to preview Mac OS X Leopard. Worldwide Developers Conference 2006 http://developer.apple.com/wwdc _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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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: [hidden email] 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 |
RE: ATU K2 Question
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In reply to this post by John Bahun
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: [hidden email] [mailto:[hidden email]]On Behalf Of Don Wilhelm Sent: Friday, July 07, 2006 9:30 AM To: John Bahun; [hidden email] 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: [hidden email] 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: [hidden email] 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 |
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