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largest beam antenna you have seen?

Discussion in 'CB Antennas' started by Big Daddy, Sep 18, 2014.

  1. Henry HPSD

    Henry HPSD 19DX348

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    What about that woodpecker system ?
    Allthough this is in the cb-antenna section perhaps ham/etc those dont count :)

    If only for 27mhz ;
    http://cb-antennas.com/?page_id=882



    if u know anything larger for cb im really interested.

    kind regards h.
     
    Big Daddy likes this.

  2. Captain Kilowatt

    Captain Kilowatt Professional Amateur
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    Yes but the one The DB posted is one where men walk INSIDE the boom. Too bad it is scrap. BTW the one you posted from Hiroshima Japan is scrap now too thanks to a typhoon.
     
  3. The DB

    The DB Sr. Member

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    Is it? I hadn't heard that...


    The DB
     
  4. Captain Kilowatt

    Captain Kilowatt Professional Amateur
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  5. Big Daddy

    Big Daddy Member

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    Henry, I am glad you replied to the post. Yes plans for big antenna in the works I would like that you would be part of it if you will? Stack 60 plus footers debating number of elements. More info to come Rotor and tower first. But will keep in touch. Thanks!
     
  6. binrat

    binrat WDX Club Coordinator
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    Big Daddy likes this.
  7. Captain Kilowatt

    Captain Kilowatt Professional Amateur
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    I used to be QRMed by this site. Naval Radio station CFH. The longwave transmitter on 127 KHz and another on 436 KHz were transmitted from the large inverted cone antenna seen as a pentagram in the middle below. The towers supporting the cables making up the antenna are nearly 600 feet high each. There are a couple Rhode & Swhartz rotatable 3-30 LPDA's near the top center. They look like the letter Y. The site is 12 miles line of sight from home. With a 600 foot antenna on my receiver I could hear the 10 Kw driver leaking thru the final tubes when the key was UP. Lord help that receiver when the key was DOWN and 250 Kw was blasting out.


    https://www.google.ca/maps/@44.9665216,-63.982855,1485m/data=!3m1!1e3



    https://www.google.ca/maps/@44.9650...ata=!3m4!1e1!3m2!1sNdzPJ_aWAruIbWKeO5kkXw!2e0

    The site has lots of wideband vertical antennas in fixed directions and a couple look like half of a log yagi standing vertically.
     
    #22 Captain Kilowatt, Sep 21, 2014
    Last edited: Sep 21, 2014
  8. binrat

    binrat WDX Club Coordinator
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    ouch.
     
  9. Captain Kilowatt

    Captain Kilowatt Professional Amateur
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    No kidding. I eventually made a notch filter that was about 70 dB deep at notch to get rid of that horrendous signal as it was causing havoc with my receiver on the broadcast and longwave bands.
     
  10. Mr Clean

    Mr Clean Active Member

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    I talked to a guy in gearldton aus using a 10 element quad on a 80 ft boom 100 ft in the air. My longest contact was with him at about 15000 miles long path. Here it http://www.shackpix.com/main/details.php?image_id=1759is!
     
  11. Henry HPSD

    Henry HPSD 19DX348

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    Beautifull isnt it ?

    Was wondering ...Have you heard David (43rc005) recently if i may ask ?
    He was quite active about 3 years ago...but seem to miss him lately..

    Thanks,

    H.
     
  12. Mustang 131

    Mustang 131 Well-Known Member

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    Largest 11 meter I've seen.

    [​IMG][​IMG]
     

    Attached Files:

  13. Mr Clean

    Mr Clean Active Member

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    I talked to him about 2 years ago just the one time. Havent heard him any more. He was only running 40 watts when we talked.
     
  14. Buzzweiser

    Buzzweiser Member

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    Haven't seen it yet the guy is still getting it ready to put together in the spring but he currently runs an 8 element cubicle quad and is upgrading to a 12 element cubicle quad. It will be a full wave horizontally polarized configuration. Tower height is 65 feet. He lives in Washington State.
    There is a gentleman in France that I talk to when conditions come in that is running a 12 element horizontal yagi he built from Sirio 4 element beams. I did have pictures of it but lost them. He uses a hand crank system as a rotor. It's only at 40 feet above ground but when he comes in here he's booming.
     
  15. jazzsinger

    jazzsinger Bullshit Buster

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    Would love to go to Geraldton. My aunt lives there. Emigrated years ago and never came back. Not that I blame her. Xmas dinner on the beach or sitting next to an eskimo in Scotland. Fucking tough choice. I should have emigrated there myself 6 year ago when I got offered.

    I imagine the local qrm is a bit ott mind.
     

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