Yup. Balun is balanced to unbalanced. Also an un-un is unbalanced to unbalanced. There are antennas out there that require an un-un. i think a see-saw is the best example ive seen of a balancing unit. In the world of antennas, a balancing unit is not something ive ever heard of.
Typos brought to you by iPhone On Mar 21, 2023, at 12:25, David Hold via BVARC <bvarc@bvarc.org> wrote: What question is that on the ham exam??? I was taught Balun was a acronym for Balanced to Unbalanced. On Tue, Mar 21, 2023 at 11:35 AM Jorge Gutierrez via BVARC <bvarc@bvarc.org<mailto:bvarc@bvarc.org>> wrote: Balun is a "balancing unit", a transformer, so to speak that allows two lines to interface with each other, without changing the impedance of either line, very useful for connecting a coaxial cable to an antenna. Remember the analogies: Current is similar to the flow of water in a pipe Voltage is the pressure of that flow Capacitance is the ability of a pipe or tank to hold the water (dams are a good example) Inductance is the resistance created when you try to change the direction of the flow Both of these are considered "reactance" in an AC circuit, so the resistance can be inductive or capacitive. Balloon is what the Chinese use to spy on us, with the approval of the father of Hunter Biden. You know, the Big Guy. Jorge A. Gutiérrez - NØJGS +1.713.550.4788 On Tuesday, March 21, 2023 at 09:30:59 AM CDT, M Reiter via BVARC <bvarc@bvarc.org<mailto:bvarc@bvarc.org>> wrote: thank you all for your replies, this was humor, and nothing more. I can not believe that calculating the reactance or inductance of RLC T or Pi circuits will ever be needed if I never build my own radio. I have spent many hours learning about antennas, and am happy to let the Japanese learn RLC and build me a radio. maybe there could be an option on the extra exam to just send some money to a Japanese engineering student to learn it for me, and skip all the questions dealing with electronics engineering. for those literal folks, I have taken 22 practice exams and read through all the pool questions once. I am learning to pass the test, not how to operate a radio. I will learn that in time once I get my practical antenna knowledge down. I am fully aware I do not need to pass the test to talk to Ausies in Australia, the desire to do so was created as a 9yr old in a ham shack at camp in upstate NY, (long lake camp). and I know yall had to walk to school in the snow bare footed up hill both ways, thank you for doing so, us whimps still have to learn engineering we will never use, thank god I learned Trigonometry in high school to answer some of these questions and to calculate the angles on my antenna designs. and will someone please explain the difference between a current balun, voltage balun inductive balun an inductor a capacitive inductor and a balloon?. 73, Marc. On Mon, Mar 20, 2023 at 3:20 PM M Reiter <beachcat...@gmail.com<mailto:beachcat...@gmail.com>> wrote: so maybe this is for the VEC, maybe I am just venting, It took me 22 tries to pass the Extra Exam, I passed the tech on my first try and maybe third for general. If I had wanted to be an electrical engineer and design antennas for NASA I would have gone to college for that. all I want to do is shoot the junk with someone in Australia and ask him or her how the weather is down there. for a small increase in frequencies I am having to learn a huge amount of electronic circuit theory. I feel this is just a bunch of old dudes sitting in a room saying to each other " Ya that question will baffle them" and not considering what questions might actually represent what is needed to operate a radio. seriously many operators do not know the phonetic alphabet or at least not the reason to use it. why do I need to know the reactance of a pi-l circuit for 7.3 Mhz at 1800 somethings on the surface of the moon in September in an odd solar year standing on one foot holding an antenna two wavelengths from the surface if there are beetles moving underneath and I am left handed. 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