Case for 1:1 Balun / current balun / choke

thingiverse

I've built a case for my HFP-1 antenna using a 1:1 balun or current balun, which I use extensively. The balun features a 4mm OD Teflon coax cable wrapped around an FT240-43 core. Each hole has been drilled to accept M3x5x4 brass inserts for added strength and durability. To secure the antenna in place, I've employed a SO239 flange mount, which provides a sturdy connection point without requiring any adhesive. With the 4mm coax cable, the core fits snugly into position, eliminating the need for glue or other securing methods.