I have an Elecraft KX3 as well and have worked the world on 5-10 watts using either a Buddipole (www.buddipole.com
) or an LNR Precision end-fed half wave (www.lnrprecision.com
). If you have a tree you can throw one end of the LNR end-fed up into, you will be amazed at what your KX3 and a small wire can do. You can't get any more stealth than the end-fed and it works like a champ. I have the 10-20-40 mark II and love the thing.
Good luck and 73,