Okay, so this question was asked before. But I didn't get the answer I wanted. I read that its some sort of antenna. what is it, what does it do, and how does it work? Also, is it in anyway related to the antenna on the to of the 707s vertical stabilizer?

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  • 1
    $\begingroup$ The one on the 707 is probably the HF antenna... aviation.stackexchange.com/questions/24688/… $\endgroup$
    – Ron Beyer
    Commented Apr 9, 2022 at 3:25
  • $\begingroup$ I was almost sure the one on the Cessna was HF as well, but it may be a loop antenna, might need a better picture of it. $\endgroup$
    – Ron Beyer
    Commented Apr 9, 2022 at 3:33
  • 2
    $\begingroup$ aviation.stackexchange.com/questions/15506/… $\endgroup$
    – Jim
    Commented Apr 9, 2022 at 3:42
  • $\begingroup$ So I read the article. It seems to be an adf antenna. But I saw a photo of a pc12 with one. What would be the purpose of that? $\endgroup$
    – Boeing787
    Commented Apr 10, 2022 at 21:33


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