KD3Y Posted January 28 Share Posted January 28 (edited) Hello Gentlemen, A question for all the guys out there who are familiar with fan dipoles, I built my 40 meter dipole myself that I use for 40 meters with my Yaesu FT-890AT. Awhile back I saw a "headline" for an article titled something about "How to use a fan dipole with an autotuner" or something to that effect somewhere but I didn't click on it and read the article. I'm sort of wanting to have the option for 20 meters as well without having to invest in another coax run, so I was considering a fan dipole with 20/40 meters. I thought about it and my question is, how will the FT-890 with the auto-tuner know that band I want to use? Will it be trying to tune both wires to the frequency or is there some way the radio will "know" to not try to tune the 20 meter wire while I'm on, say 7.185 MHz and to switch over to the other wire when I switch to the other band? Sorry to say I don't know very much about "antenna science" but the article that I didn't read lead me to believe that there was some trick to trying to tune two antenna off one feedpoint with an autotuner. Am I "good to go" with the simple 2-band fan dipole and an autotuner or is there something I need to know? It's a case of I don't know what I don't know. Copper wire being what it is nowadays price-wise, Id like to avoid the expense of the "try it and see what happens" method of learning if I can. LOL Thanks in advance. Anthony, KD3Y Edited January 28 by KD3Y spelling erurs Link to comment Share on other sites More sharing options...
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