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Thread: Want to build a rotatable dipole

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  1. #1

    Default Want to build a rotatable dipole

    I have an old Mosley tri bander that I really don't have room for.. I would like to build a multiband dipole from the traps and elements
    Any info on where to start would be greatly appreciated..
    Thanks
    Bruce
    KC9RJI

  2. #2

    Default

    Not familiar with the antenna, but does it have a single driven element for all three bands? If so, then the place to start is to simply strip off the director and reflector and start tuning from there.
    [B][COLOR=#008000]vy 73,

    Casey, TI2/NA7U
    [/COLOR][URL="http://casimiro.hubpages.com/_QRZForums/hub/What-Can-You-Do-With-Amateur-Radio-The-Skys-The-Limit"]Amateur Radio: The Sky's the Limit![COLOR=#008000][/COLOR][/URL][/B]
    [URL="http://casimiro.hubpages.com/_QRZForums/hub/What-Can-You-Do-With-Amateur-Radio-The-Skys-The-Limit"][SIGPIC][/SIGPIC][/URL]

  3. #3

    Default

    Usually there's nothing to tune. If it's a Mosley TA-33, for example, they sell that as a rotary dipole as model number TA-31. It's just the driven element from a TA-33.

    "Tuning" is accomplished only by adjusting the lengths of the aluminum tubing, which are adjustable by design. All you'd really need is a bracket to mount it on a vertical support mast as opposed to the original horizontal boom. Such brackets are available from DX Engineering and elsewhere. Most Mosley triband traps are 10/15m traps built into a single device on each side of the element. Piece of cake.
    What if soy milk is just regular milk introducing itself in Spanish?

  4. #4

    Default

    Which model Mosley tribander?
    What if soy milk is just regular milk introducing itself in Spanish?

  5. #5

    Default

    Its the classic 33 and I should have mentioned that I want to keep it rotatable and possibly still cover all three bands.

  6. #6
    Join Date
    Mar 2006
    Location
    Cincinnati, Ohio
    Posts
    1,339

    Default

    Just put up the radiator.
    73,
    Bill WA8FOZ

  7. #7
    Join Date
    Mar 2009
    Location
    Carmel, IN
    Posts
    6,280

    Default

    I have exactly this (from unknown tri-band yagi) in my attic and it works well. I don't rotate it as it is near the peak of the attic.
    Leroy
    Be sure to listen for my beacon on 28.278.8 MHz

  8. #8

    Default

    Quote Originally Posted by WA4OTD View Post
    I don't rotate it as it is near the peak of the attic.
    In that case, just rotate the house.

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