Most 9:1 designs are UNUNs - unbalanced to unbalanced. For feeding a window line fed doublet, you definitely want a BALUN - balanced to unbalanced. The doublet / window line is a balanced system. The output connector on the KX2 is unbalanced.
If you are using an UNUN in this setup you you may be getting RF on the KX2 case which, when you touch it, may cause the tuner to do what you are seeing. The Elecraft BL2 is a great solution for this application since you can choose either 1:1 or 4:1 to see which one makes the ATU the happiest. Or you can roll your own but it needs to be a BALUN. GL & 73, Brian, K0DTJ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com