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.
2 points
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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
@vk6flab @knova just a loop but… lots to know: https://youtu.be/6CaJokq_oIM?si=GpE054CouhLvzkpF
1 point
+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!
