SO239 UHF Clamp/Screw Connector for 5D-FB, LMR300, RG59, RG-6U

The UHF Series PL259 (male) and SO239 (female) connectors were initially developed for radar system video connections. Today, these versatile coaxial connectors find applications in communication systems across a wide frequency range, spanning from 0.6 to 300 MHz. They earned the abbreviation “UHF” (Ultra High Frequency) during their inception in the 1930s. At that time, frequencies up to 300 MHz were considered high frequencies. However, in today’s context, with household radio devices operating in the gigahertz range, this nomenclature might seem somewhat outdated.

Among UHF connectors, the PL-259 connector enjoys widespread popularity due to its simplicity of manufacturing and ease of installation on cables. These connectors are traditionally employed in low-frequency radio communication systems, serving both professionals, radio enthusiasts, and civilians using CB radio communication for personal purposes.