The UHF connector is a pre-World War II threaded RF connector design, from an era when "UHF" referred to frequencies over 30 MHz. Originally intended for use as a video connector in radar applications, the connector was later used for other RF applications. This connector was developed on basis of a shielded banana plug.

UHF-Male (or UHF Plug) is the same as PL-259

UHF-Female (or UHF-Jack) is the same as SO-239

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