UHF connector is designed in World War II or earlier, and invented in the 1930s by Amphenol engineer Edward Clarke Quackenbush for use in the radio industry. The most popular cable plug and corresponding chassis-mount socket carry the old Signal Corps nomenclatures PL-259 (plug) and SO-239 (socket).
The UHF connector is a name for a threaded RF connector. UHF coax connectors reliably carry signals at frequencies up to 100 MHz with thread coupling. Widely used for Antennas, Military, Public Address Systems, Low-frequency applications, etc.
UHF connectors feature a threaded coupling. UHF connectors are economical and popularly used because of their ease of assembly. The UHF solderable screw-on termination feature requires no specialized crimping tools.