Anyone got any interesting DIY mag loop plans they can share? Or delta loop.

I’d like to try something new and I don’t want to buy one.

  • Onno (VK6FLAB)@lemmy.radio
    ·
    6 months ago

    A magnetic loop is literally just a loop with a tuning capacitor at the feed point.

    There should be several to be found on the ftroop website. ftroop.vk6flab.com

  • Matthias HB9EGM@lemmy.radio
    ·
    6 months ago

    +1 for building instead of buying!

    Magloop:

    • I used the https://miguelvaca.github.io/vk3cpu/magloop.html calculator, using 1inch coaxial cable, and a soviet vacuum capacitor. picture here

    Delta loop:

    • for 6m, horizontal polarisation: feedpoint at the bottom, impedance match with quarter-wave length of 75Ohm TV coaxial cable.
    • for 30m, vertical polarisation: feedpoint on the side, connected by symmetric line, and a 1:4 current balun.

    Sorry I don't find pics for the delta loops. Please ask if you want more details!