Great Idea - thanks for pointing me to the obvious <GR>. Just as I was contriving a highly complex solution to a non existent problem!! Besides, one could always use another balun. 73s Pete > > From: Karl Larsen <[EMAIL PROTECTED]> > Date: 2006/10/07 Sat AM 07:07:13 CDT > To: Dave G4AON <[EMAIL PROTECTED]> > CC: elecraft@mailman.qth.net > Subject: Re: [Elecraft] Baluns & wires & feeders (oh, my!) > > Dave G4AON wrote: > > There is a simple way to measure the efficiency of a balun, make two of > > them and connect them "back to back". Measure the power fed to them and > > the corresponding output power. Obviously this doesn't take a mismatched > > antenna into account. > > > I did just that about this 5 years ago. I used two MFJ tuners > connected by the 4:1 baluns in each. I fed one from my MFJ Antenna > Analyser and hooked a 50 ohm resister to the other tuner. I measured the > voltage across the resistor with a RF probe. > > Alas I can't locate the paper where I wrote down the results. Over > the bands the loss was around 10-15% I recall and I thought that was > about what I expected. > > > 73 Karl K5DI > > _______________________________________________ > 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 >
Pete Axson WD4LST 17901 NE 18th Ave Citra, FL 32113 _______________________________________________ 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
