Neither the threads nor the joint between male connector body and captive nut provide a water-tight seal. This design is sensitive to the surface properties of the inner conductor (which must be solid wire, not stranded). They can be manufactured as a single piece, with center sockets and dielectric, entirely at the factory where tolerances can easily be controlled. Push-on versions are also available.įemale connectors are typically used on bulkheads or as couplers, often being secured with the same threads as for the connectors. ![]() Thus, the male connector consists of only a body, which is generally crimped onto or screwed over the cable shielding braid, and a captive nut, neither of which require tight tolerances. The coaxial cable center conductor forms the pin, and cable dielectric extends up to the mating face of the connector. The design allows for low-cost construction, where cables are terminated almost exclusively with male connectors. The male connector has a center pin, and a captive nut with internal threads. The female connector has a socket for the center conductor and external threads. ![]() It has good 75 Ω impedance match for frequencies well over 1 GHz and has usable bandwidth up to several GHz.Ĭonnectors mate using a 3/8-32 UNEF thread. The F connector is an inexpensive, gendered, threaded, compression connector for radio frequency signals. In the 1970s, it became commonplace on VHF, and later UHF, television antenna connections in the United States, as coaxial cables replaced twin-lead. Winston in the early 1950s while working for Jerrold Electronics on their development of cable television. 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. Hex drive (male and female) A/F 7⁄ 16 in (11 mm) Female 3⁄ 8 in (9.5 mm) external threads Male Varies by cable size
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