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Dipole antennas ?..

Discussion in 'Amateur Radio Antennas' started by Oatmeal, Sep 13, 2019 at 9:29 AM.

  1. Oatmeal

    Oatmeal Active Member

    Mar 22, 2009
    Likes Received:
    Good morning, what kinda dipole antenna you all using and how high is it ?
    Right now, I'm running a end fed which is 50ft off the ground, does ok...


  2. sp5it

    sp5it Master of puppets

    Jul 9, 2009
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    End fed is not a dipole.
    Dipoles should be placed at least 1/2 wave over the ground.
    Captain Kilowatt likes this.
  3. BJ radionut

    BJ radionut Supporting Member and 6m addict

    May 9, 2008
    Likes Received:
    Oatmeal: I am running a pair of "Phased" Doublets presently.
    The Doublet is basically a Dipole variant, instead of fed with coax it is fed with 300/450/600 Ohm twin-lead. The antenna is about 45-50 ft at the Apex with the ends 25-35 feet above the ground. I have been using this variation for about 7 or 8 years now.
    I have run a single Doublet antenna also. I have found them to be an effective All-Band antenna.
    I have used them in length from 326 and 260 feet overall length for 160 thru 15 meters, and 124 feet for 80 thru 15 meters.
    I have always used an outboard manual tuner to feed with.
    I have had the best performance when tuned with a Double " L" (homebrew or presently PALSTAR BT1500A) or also the Link Coupled tuner (Johnson Matchbox). I also have used a DENTRON MT2000 or 3000 with a built-in 4:1 balun.
    These all have worked well, it takes practice and a little experimenting with feedline length to get all bands on the tuners with the built-in baluns, however finding the "sweet spot" for all bands just take time and practice.
    The Twinlead or Ladder line, whether 300/450 or 600 Ohm is brought Directly to the tuner. This eliminates the high loss from coax when being used at VSWR greater than 2.5:1 which can occur with any multi-band antenna fed with coax.
    Many here on the forum have run a similar version, or presently running this type.
    They are hard to beat!

    http://ftp.unpad.ac.id/orari/librar...ant/docs/Introducing the All-Band Doublet.htm


    This my variant.
    124 feet overall with 34 ft spacing. I love it! It's a killer!:LOL:
    I'll explain later if you are interested.
    All the Best
  4. Riverman

    Riverman Part-time Member

    Nov 12, 2013
    Likes Received:
    20 meter dipole. 14 guage wire with 1:1 balun. Inverted V. Highest point is 18'. Ends are at 6'.
    1.3 @ 14.150
    1.1 @ 14.250
    1.2 @ 14.350
    Works great. (y)
    Shadetree Mechanic likes this.
  5. Rob_MA

    Rob_MA Active Member

    Jan 1, 2016
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  6. w9cll

    w9cll W9WDX Amateur Radio Club Member

    Jan 19, 2013
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    I am running a fan dipole with wires for 17, 20 and 40, I load 15 on the 40 meter wire and use a tuner for everything else. I have it hanging in a V about 30 feet up.
  7. Woody-202

    Woody-202 Active Member

    Sep 5, 2018
    Likes Received:
    I had a 15m dipole strung up in my Garage. I would open up the garage door and use it like that. I was surprised at how well it worked only 10' from the floor. I've since moved to an indoor-second-floor MLA .
    Riverman and binrat like this.
  8. binrat

    binrat WDX Club Coordinator
    Staff Member

    Nov 5, 2008
    Likes Received:
    I used inverted vee 20 and sometime a trapped 20/40 portable all the tme. Most often with 30(ish) watts. Constantly manage the minimum of 4 contacts each time out. Here is from Aug 2017 antenna setup and a map of contacts.The mast is a avi probe that is about 8'6" and with this time 10 watts. windy peak hf antenna.jpg windy 2017.png
    #8 binrat, Sep 13, 2019 at 4:21 PM
    Last edited: Sep 14, 2019 at 1:32 PM
    Riverman likes this.
  9. Mudfoot

    Mudfoot Sr. Member

    Jun 17, 2009
    Likes Received:
    10, 15, 20 Fan dipole @ 30'
    40/80 trapped at 30'
    #9 Mudfoot, Sep 13, 2019 at 10:29 PM
    Last edited: Sep 14, 2019 at 4:08 AM
    Riverman, w9cll and binrat like this.

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