Multiband 1/4 wave Vertical antenna.

Discussion in 'Amateur Radio News' started by KK6USY, Jul 9, 2021.

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  1. KK6USY

    KK6USY Ham Member QRZ Page

    Thought some might be interested in this project. It is basically a light weight version of Colin's "MM0OPX" Adjustiwave antenna. Colin knows and approves of my build. Since I do some POTA I install a 20m leg and adjust the main antenna to 40m so I can switch back and forth. My main bands for POTA are 40 and 20m.

     
    Last edited: Jul 9, 2021
    W9JTC, N2RKL, WD8ICP and 13 others like this.
  2. K8XG

    K8XG XML Subscriber QRZ Page

    M1WML likes this.
  3. KK6USY

    KK6USY Ham Member QRZ Page

    I didn't really show how the antenna works in this video, but basically you wind one real out the other in. The antenna will tune all band from 6m to 80m by how far your wire is unwound. Also you can hook a second wire that runs up the mast any band you chose so that you have 2 bands at a time. Most of my contacts for POTA and SOTA are made on 20 and 40 meter with the bands the way they are presently.
     
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  4. ZL1PDT

    ZL1PDT Ham Member QRZ Page

    look good but think to big to carry around a mast and 20m of wire for endfed much easier in a V or L 10/20/40 m with 64:1 or 49:1 transformer,
    73
     
    WY7AC, K5MPH and M1WML like this.
  5. KE0YWQ

    KE0YWQ XML Subscriber QRZ Page

    Seems a lot like SteppIR's CrankIR except in a lightweight (and probably significantly cheaper) version. I like it.
     
    PA1ZT, W9HJ, W5MIL and 2 others like this.
  6. M1WML

    M1WML Ham Member QRZ Page

    I run a Facebook page all about antennas called amateur radio antennas large and small (all over the world) join with your amateur call sign.. we have some technical guys who no all about antennas.. hope to see you their..;);)
     
    KK6USY likes this.
  7. KC5MOL

    KC5MOL Ham Member QRZ Page

    M1WML and KK6USY like this.
  8. N8PEM

    N8PEM XML Subscriber QRZ Page

    Very cool chuck.
     
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  9. KY4BDJ

    KY4BDJ Ham Member QRZ Page

    Can you show or tell us what is inside the box the reels are mounted to? Would like to know if you have a balun inside it. If so, what type.
     
    NB1U likes this.
  10. N3LJS

    N3LJS Premium Subscriber QRZ Page

    I like to see a video on the on the build...........I am very interested in building one. Just cant see how the center conductor is hooked to the downrigger wire.
     
    NB1U likes this.

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