Isn’t the name apt, though? A feedpoint choke like this does manage the interface from the unbalanced coax to the balanced antenna by inhibiting the flow of common-mode currents. Hence, Bal-Un.
Agree that the term is insufficiently descriptive. > On Oct 14, 2020, at 12:57 PM, Jim Brown <j...@audiosystemsgroup.com> wrote: > > On 10/14/2020 6:19 AM, Alan - G4GNX wrote: >> I presume that you disconnected the feeder from the balun when you did the >> DC Ohms test? If not, there is something wrong because you should see almost >> a dead (DC) short through the primary of the balun. > > Here's an example of where the word "balun" blows up our thinking about > problem solving. The "balun" you're describing is a transformer, sometimes > called a voltage balun. Other things commonly called a "balun" are a common > mode choke, which should look like an open circuit at both DC and RF. > > The word "balun" should be eliminated from our use. I know of at least ten > very different things that are called a "balun." > > 73, Jim K9YC > ______________________________________________________________ > 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 aa...@arrl.net Bill Coleman, AA4LR, PP-ASEL Mail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 ______________________________________________________________ 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
