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Homebrew 1/4 Wave 10 Meter Ground Plane

Discussion in 'Amateur Radio Antennas' started by Riverman, Jan 8, 2022.

  1. Captain Kilowatt

    Captain Kilowatt Professional Amateur
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    Pretty much like my basement hung dipole one time. It was actually in my basement, hung from the ceiling joists and was maybe a foot above ground level in a cement basement. It did actually work DX. That was back in my young and foolish days. LOL


     
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  2. Riverman

    Riverman Old Member

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    Old and foolish. (n)
    Yep, that's me! :D
     
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  3. AudioShockwav

    AudioShockwav Extraterrestrial Admin
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    I can relate to that statement.
    Hey, it's what works right?
    There is a thread here somewhere that has a bunch of homebrew projects in it.

    73
    Jeff
     
  4. Riverman

    Riverman Old Member

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    I've seen it, Jeff. Some humdingers. Right up my alley. (y)
     
  5. HomerBB

    HomerBB Sr. Member

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    Wouldn't want to throw any gas on a fire, but my opinion of single radial 1/4 wave GP is that it is a simple vertical dipole, is not a 1/4 GP, but a 1/2 wave, and should work as well as any good dipole.
     
  6. Riverman

    Riverman Old Member

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    I agree, Homer. (y) Couldn’t decide what to title this thread and flipped a coin. :)
     
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  7. Riverman

    Riverman Old Member

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    I have a slightly longer top section that I interchange with the existing one. It brings the total length to 103". I then lengthen the wire radial a little and voila'; it becomes an 11 meter antenna! Readings at 27.205 (Ch 20) are almost identical to those posted earlier at 28.400.

    What I should do is shorten that top piece so the total length is 101" and then adjust the radial so the resonant point splits the difference between those of the two antennas. Judging from the analyzer, the SWR on the ends (26.965 and 28.500) should then be about 1.4. Perfectly acceptable for a dual band antenna. (y)
     
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