The F Connector is the most common connection for video distribution. It’s the friendly chrome connection that lets you use your antenna, cable or satellite by letting you connect the cable to the box.

This is an F-connector attached to our Solid Signal cable.

F Connectors are found at the end of coaxial cables (read our series “Cables 101” for more) where they provide a secure, weatherproof seal that shields the connection from RF interference.

On coaxial cables, the center part of the cable is also used as part of the connector so it is important that the outer part of the connector properly shields it. That’s why push-on and crimp-on connections have fallen out of favor. Special compression tools are used to lock the connector onto the cable while making sure that the shielding on the outside of the cable isn’t broken.

F-connectors attach with a 7/16″ (English) open end wrench so it’s a good idea to have one handy rather on relying on your connections to be “finger tight.”

Unlike other connectors like the RCA or BNC, the F connector is not named for its creator, nor is it named for its size or construction like the 1/8″ TRRS (commonly called the headphone plug.) It may have been named because it originally carried UHF or VHF signals to a TV.