Hi Brian I don't recall if you mentioned what power level you would be using with your K2. If it is running barefoot, without the 100w PA, you could use one of the Elecraft switchable baluns. They switch between 1:1 and 4:1 ratios, giving you a good chance to match most balanced feeds.
Even though the rig end of the line may be reactive, due to impedance mismatches along the line, the switchable balun can be used to reduce the amount of mismatch the ATU then has to to cope with. This makes a simple dipole with tuned feeders a nice multiband antenna. On a given band, try both switch positions and see which one helps the ATU make the best match. Good luck and 73 Bob N6WG ----- Original Message ----- From: "Brian Lloyd" <[EMAIL PROTECTED]> To: "elecraft Reflector" <elecraft@mailman.qth.net> Sent: Tuesday, May 13, 2008 8:37 AM Subject: [Elecraft] Bal[un] (was: Buddipole vs. tuner and wire) > OK, I am convinced - keep the tuner and the wire. So, that brings up a > second question: balanced vs. unbalanced. > > Wire antennas that do not require a counterpoise are usually loops or > dipoles, i.e. inherently balanced even if not resonant. Most tuners > offer an unbalanced output. SGC says, just connect up the antenna. > Seems to me that a balun would improve things and keep RF off the coax > and power leads to the tuner. But how well do baluns handle huge > mismatch? > > Just off the top of my head, it seems to me that the tuner at the top > of a pole with two legs sloped down, i.e. inverted-V, would make a > pretty good omni all-band antenna. > > More thinking aloud. > > Brian Lloyd > Granite Bay Montessori School 9330 Sierra College Bl > brian AT gbmontessori DOT com Roseville, CA 95661 > +1.916.367.2131 (voice) +1.791.912.8170 (fax) > > PGP key ID: 12095C52A32A1B6C > PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C > > > > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > 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: Elecraft@mailman.qth.net 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
