Easy-to-build UHF J-Pole Antenna

This article describes the construction of an easy-to-build UHF J-Pole antenna, based on a previously described design. It details a rapid realization using readily available materials such as an aluminum angle bar, 4mm galvanized threaded rod, nuts, cable lugs, a clamp, and super glue. The construction process involves drilling the aluminum angle bar for the clamp and threaded rods, assembling the threaded rod sections with nuts, and connecting the coaxial cable with cable lugs. The braid of the coaxial cable is connected to the shorter element. ROS adjustment is performed by moving the nuts approximately 30mm from the angle bar. Once tuned, super glue is used to seal the coaxial cable ends (braid and center conductor) and to protect the cut ends of the threaded rods from rust. The article was published on Tuesday, July 8, 2014, and is suitable for radio amateurs looking for a simple and effective UHF antenna project.