Saturday, January 10, 2026

Building the FBK Sleeve Antenna for VHF/UHF Amateur radio

Building the FBK Sleeve Antenna for VHF/UHF Amateur radio: Build a compact dual-band FBK sleeve antenna for VHF/UHF bands from coax cable. Simple, efficient, and ideal for portable ham radio use.

The FBK Sleeve Antenna is a coaxial-based antenna that requires minimal materials and can be quickly assembled for field use, emergency communication, or portable operations. Unlike a traditional whip or dipole, the FBK design hides much of its structure inside the coax itself, using precise sections of the braid and dielectric to act as radiating and matching elements.

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