nerdymark @nerdymark.com · 22d

I'm going to build my own dang antenna for weather balloon (radiosonde) tracking and put it in my attic with my ADSB antenna. Some PVC pipes and 3d printed stuff to keep the elements lined up. Ground plane, might go 5/8 wave.

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nerdymark · 19d

Quarter wave. Printed a little stand for backyard testing.