Which term describes a connector commonly used for 75-ohm video and used to terminate coaxial cables?

• A. RCA connector
• B. F connector
• C. BNC connector
• D. SMA connector

Answer: (B)

Matching impedance in coaxial video systems is essential to prevent reflections at the connection. For 75-ohm video, the F-type connector is the standard: a threaded coupling designed specifically for 75-ohm coax like RG-6, used on cable TV and satellite setups. Its design ensures a solid impedance match across typical video frequencies, which helps preserve signal integrity as the coax runs are extended. Other connectors exist for video, but they aren’t the go-to choice for 75-ohm terminations: RCA is a general-purpose video/audio connector, BNC is common in RF with variants for different impedances, and SMA is a compact, high-frequency connector usually used for 50-ohm systems. The F connector best fits the requirement of a 75-ohm video termination of coaxial cable.