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My Lightning 6 Quad antenna

Discussion in 'Amateur Radio Antennas' started by Drifter, Sep 23, 2009.

  1. Drifter

    Drifter
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    It is up about 60' ft on my crank up tower.(y) I love this beam. There is also a 2meter antenna below the beam. They work great!
    [​IMG]
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    [​IMG]



     
    #1 Drifter, Sep 23, 2009
    Last edited: Sep 23, 2009

  2. Quiksilver

    Quiksilver
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    Sweeeeet!
     
  3. KingCobra_CDX882

    KingCobra_CDX882
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    W9WDX Amateur Radio Club Member

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    Bet your neighbors like you...LOL
     
  4. Marconi

    Marconi
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    Usually if I can hear em' I can talk to em'.

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    Great setup Drifter and looks even better. Can you confirm for me about the positions of the ver/hor feed points? The typical quad has the vertical fed at the 3:00 or 9:00 and the horizontal usually at the 6 o'clock position, but I think it is the opposite with the L6. I have an idea why that is, but I would like your opinion and if you found that confusing at first look? I have never owned a Signal Engineering quad, but would love to play a tune on that one.

    How say you?

    Give us some words about your success at tuning this monster and how she performs even considering conditions may not be the best right now.

    Thanks for your input.

    Marconi
     
  5. unit_399

    unit_399
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    EL CAPO

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    Drifter -

    Your pictures promote maximum jealousy !!!

    - unit 399
     
  6. HiDef

    HiDef
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    Nice tower and antenna. Looks like an old Tristao or an earlier U.S. Tower.

    When you put that quad exactly 90 degrees away from a signal is the rejection really good?

    Next project could be to put a bunch of 2 meter quad elements on the same boom:D
     
  7. W5LZ

    W5LZ
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    Crotchety Old Bastard

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    And what has me puzzled, because I don't see what it's feeding, and you don't see it very often anyway, is what are you feeding with the ladder line?
    - 'Doc
     
  8. Captain Kilowatt

    Captain Kilowatt
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    I'd say it's just the light and the imaging on the digital picture.Look at the element spreaders as well. They look the same,broken up.
     
  9. airplane1

    airplane1
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    W9WDX Amateur Radio Club Member

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    HI HI

    AP
     
  10. KJ4BAE

    KJ4BAE
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    I just put up a super hawk, the 2 element signal engineering antenna and you are right the feeding is opposite of what it should be. I put this thing together and i still cant figure out why it is like this. It is really confusing but the antenna works very well.
     
  11. Drifter

    Drifter
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    Hello, Mine has it's horizontal at 3 o clock and vertical at 6 o clock.... She has been up three years now first as the Lightning 4+. which worked great as a 4 but I wanted more so I bought the upgrade kit which stretched the boom and added two more directors. As a 4 element she was fairly easy to tune.. When I upgraded I had some interference issues from my kids swing set and fort and fence and my neighbor's car parked on the other side of the fence. When I fold the tower over the antenna gets very close to those items. A lot of trial and error and cranking up and down till I got the numbers I wanted on the MFJ. I am scared to make any changes :mellow: but I have to install upgraded coax and the upgraded feed system from Signal Engineering to accomodate more output. (y)
    The Quad is currently being fed with LMR 400uf soon to be upgraded to LMR 600UF coax. The 2meter has 213 coax feeding it.
     
  12. Drifter

    Drifter
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    Yes HiDef You have a sharp eye and very knowledgeable. The tower is a Tristao.. and yes the antenna is very directional and the rejection is awesome.
     
  13. Drifter

    Drifter
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    Don't mean to do that. lol I just want to share. I like to look at great radio setups too.
     
  14. wambulance

    wambulance
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    Wow! That is sexy!
     
  15. Marconi

    Marconi
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    Usually if I can hear em' I can talk to em'.

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    Thanks KJ4BAE, IMO the difference is due to the SE being a voltage fed antenna where the wire is continuous while the traditional quads are current fed and have the resonant wire joined together at an insulator. Your SuperHawk tuner is a bit different in design compared to Drifter’s L4+ or L6, because your SH’s boom is not long enough to appear as a resonant ground element for the feeder to work against, so SE adds this floating ground side wire parallel to the open ended feeder. IMO, this is a very efficient feeder that transitions the impedance very smoothly from the coax end directly into the radiator---transforming the high impedance radiator to that of the feed line, while this is basically end feeding a resonant ½ wave element. The other half of the quad also contributes to the radiation of any quad design, but that is difficult for me to describe.
    Thanks for the confirmation Drifter. I believe you when you describe the interference issues you noticed in your yard. I tried to install my Long John 5 element at my location and I was never able to get a reasonable tune even tuning about 25’ high on a 18’ roof deck on my home. The antenna was overly sensitive to everything within 40’ - 50’ feet. Maybe if I could have raised it up to 40’ feet or more it would have worked fine. I ended up putting my 4 element back up and did not have the problem.

    Can you describe for us what the new power upgrade is? This must be something new from SE.
     

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