1. You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
    Dismiss Notice

Avanti Sigma II

Discussion in 'CB Antennas' started by w9cll, Jun 19, 2018.

  1. w9cll

    w9cll W9WDX Amateur Radio Club Member

    Joined:
    Jan 19, 2013
    Messages:
    3,096
    Likes Received:
    1,680

  2. edfiero

    edfiero Member

    Joined:
    Jul 15, 2010
    Messages:
    23
    Likes Received:
    1
    Nice find, but not worth the $$ IMO. Now, if I could get a PDL2, thats a different story.
     
  3. w9cll

    w9cll W9WDX Amateur Radio Club Member

    Joined:
    Jan 19, 2013
    Messages:
    3,096
    Likes Received:
    1,680
    Agreed
     
  4. JAF0

    JAF0 New Member

    Joined:
    Oct 2, 2017
    Messages:
    52
    Likes Received:
    19
    I'd just make one from a new SPT-500 and a ring of aluminium in place of the hygain
    u-turn match and put a piece of fiberglass rod into the radiator element just above the radials.

    Don't forget to wrap an 8-10 turn choke to ground around the fiberglass, from the tap point at the ring feed, to ground.

    Tell me it's not 267" where the Sigma-II tunes best for .385!
     
  5. firerunner

    firerunner Active Member

    Joined:
    Oct 24, 2014
    Messages:
    143
    Likes Received:
    67
    I picked one of those 5/8's sigmas a few years ago the coil area was destroyed but a buddy made me a new one
     

Share This Page

  • About Us

    The WorldwideDX Radio Forum was originally established in 2001. We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. We are working every day to make sure our community is the best Radio Hobbyist's site.
  • Like us on Facebook

  • Premium VIP Member

    The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. Care to buy us a beer? We'd really appreciate it!

    Donate to us!