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

small or "mini" beams?

Discussion in 'Home Brew' started by rangelia, Sep 3, 2018.

  1. rangelia

    rangelia New Member

    Joined:
    Aug 16, 2018
    Messages:
    24
    Likes Received:
    3
    I was wanting to make a cubical quad beam antenna to use as a "base" antenna. After looking at pics and tutorials for a few days I finally made it to the calculator part of it. I had no Idea they were that big. If I did it right, I think the squares would be like 9'x6' . Is there a mini version of a directional antenna? At the cost of a little performance I wouldn't mind scaling it down.


     

  2. Robb

    Robb Yup

    Joined:
    Dec 18, 2008
    Messages:
    10,854
    Likes Received:
    2,504
    They are big; no getting around it. But they can be built super light if one chooses the right materials. Or - just buy a 3 element Yagi from Sirio for around $150 and they supply all of the materials. Won't be a quad, but nearly as quiet with more gain.
     
    Shadetree Mechanic and rangelia like this.
  3. rangelia

    rangelia New Member

    Joined:
    Aug 16, 2018
    Messages:
    24
    Likes Received:
    3
    Im gonna have to DIY it for money reasons, but Im not dead set on a quad. just something that might be a little smaller . What is the smallest a "directional" can be? I don't neeeeed a beam, but one would be cool if I can scale it down smaller than a VW bus.
     
  4. 2RT307

    2RT307 Sr. Member

    Joined:
    Nov 22, 2011
    Messages:
    2,306
    Likes Received:
    740
    Probably look at a Moxon.

    73,
    Brett
     
  5. Riverman71

    Riverman71 Part-time Member

    Joined:
    Nov 12, 2013
    Messages:
    1,293
    Likes Received:
    673
    Welcom back, Brett.
    Long time, no see. Or hear. :)
     
    2RT307 likes this.
  6. Captain Kilowatt

    Captain Kilowatt Professional Amateur
    Staff Member

    Joined:
    Apr 6, 2005
    Messages:
    15,055
    Likes Received:
    6,685
    Less than full sized means less performance and if scaled down too far you are better off with a different antenna. Physics is physics and there is no getting around it. If you think you can save money acquiring the materials and putting it all together and tuned properly especially if it is reduced sized then you better have a GOOD supply of materials in the back yard already otherwise a cheap 3 element yagi is the way to go. Also remember that ANY beam will require a rotator so that is another expense to consider. A Moxon is light and smaller in size however it has slightly LESS gain than a 3 element yagi. they are cheap to build however but you still need arotator to take advantage of the directional characteristics.
     
  7. rangelia

    rangelia New Member

    Joined:
    Aug 16, 2018
    Messages:
    24
    Likes Received:
    3
    Thanks for the replies. When its all said and done I may end up just buying one but Id like to try to build something first. Like I said, I may not even "need" a directional, that's why Im asking. To me their cool I guess. As far as performance,,,, man, Im in my truck in the driveway barefootin it. anything more is a step up the ladder! HAHAHAHAHA . As far as rotating it, Ill spin it on a pole with a compass. Im talkin ghetto. Just wanting to kill some time and get out further than 9 miles. Thanks for the suggestions in name brands. Ill check them out just in case.
     
    Riverman71 likes this.
  8. dave457

    dave457 Well-Known Member

    Joined:
    Jan 3, 2009
    Messages:
    575
    Likes Received:
    413
    rangelia likes this.
  9. rangelia

    rangelia New Member

    Joined:
    Aug 16, 2018
    Messages:
    24
    Likes Received:
    3
    Iv looked at those and was going to ask about them. didn't know if they would be good for 11m?
     
  10. TheRealPorkchop

    TheRealPorkchop Certified Sith Pimp

    Joined:
    Aug 25, 2015
    Messages:
    736
    Likes Received:
    572
    I’ve never seen such. I really need to start using Google.

     
  11. Riverman71

    Riverman71 Part-time Member

    Joined:
    Nov 12, 2013
    Messages:
    1,293
    Likes Received:
    673
    I've never tried one but should be inexpensive to build. Just some pvc and copper wire. (y)
     
  12. rangelia

    rangelia New Member

    Joined:
    Aug 16, 2018
    Messages:
    24
    Likes Received:
    3
    Ill look for some DIY's in a bit and see fi I can figure out how to calculate something like that.
     
  13. Captain Kilowatt

    Captain Kilowatt Professional Amateur
    Staff Member

    Joined:
    Apr 6, 2005
    Messages:
    15,055
    Likes Received:
    6,685
    Personally I think they should be called Takey antennas not just Tak. :whistle:
     
    binrat likes this.
  14. rangelia

    rangelia New Member

    Joined:
    Aug 16, 2018
    Messages:
    24
    Likes Received:
    3
    Riverman71 likes this.
  15. sp5it

    sp5it Master of puppets

    Joined:
    Jul 9, 2009
    Messages:
    935
    Likes Received:
    453
    Junk-Tenna.
    Mike
     
    rangelia likes this.

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!