F connector

The F connector (also F-type connector) is a coaxial RF connector commonly used for "over the air" terrestrial television, cable television and universally for satellite television and cable modems, usually with RG-6/U cable or with RG-59/U cable.

F connector
Male F connector on cable
Type RF coaxial connector
Production history
Designer Eric E. Winston
Designed Early 1950s
Manufacturer Various
General specifications
Diameter
Hex drive (male and female)
A/F 716 in (11 mm)
Female
38 in (9.5 mm) external threads
Male
Varies by cable size
Cable Coaxial
Passband From 0 Hz to, at least, 2.15 GHz

The F connector was invented by Eric E. Winston in the early 1950s while working for Jerrold Electronics on their development of cable television. In the 1970s, it became commonplace on VHF, and later UHF, television antenna connections in the United States, as coaxial cables replaced twin-lead. It is now specified in IEC 61169-24:2019.

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