BNC (Bayonet Neill-Concelman): The BNC connector is a type of coaxial cable connector used primarily for radio-frequency (RF) signals and video connections. Named after its inventors Paul Neill and Carl Concelman, the BNC connector features a bayonet-style locking mechanism, allowing it to securely attach to a port with a simple twist. BNC connectors are commonly found in professional video, radio, and networking equipment, particularly in broadcast and test environments.
Typically used with coaxial cables, BNC connectors support frequencies up to several GHz, making them ideal for analog and digital video transmissions (like SDI in video production) and RF applications. They are available in various impedance types, primarily 50 ohms and 75 ohms, with 50 ohms used in radio applications and 75 ohms often used in video applications for minimal signal loss.