In a message dated 9/6/07 6:07:54 PM Eastern Daylight Time, [EMAIL PROTECTED] writes:
> With a good balun at the output of a good unbalanced autotuner, the > balance *should* be perfect. The task of finding out why it may not be > perfect in any one installation may indeed be more difficult than giving > up and simply using a modern balanced tuner even with the drawbacks of > any of the currently available balanced tuners. > One big reason for unbalance is the wide variety of impedances that the balanced load may present. What balun can do its job with resistive part varying from a few ohms to several thousand, and reactive part from a few thousand capacitive to a few thousand inductive? And do the job over a 10:1 HF frequency range? This is why the unbalanced tuner/balun combo works so well for some and so poorly for others - or even both, depending on band. If the impedance and frequency to be matched are such that the balun can do its job, great! But that's not always the case. 73 de Jim, N2EY ************************************** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour _______________________________________________ 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
