C connector

C connector

C connector on the left beside smaller BNC
Type RF coaxial connector
Designer Carl Concelman
Manufacturer Various
Diameter Male:      0.750 in (1.91 cm)
Female:  0.600 in (1.52 cm)
(outer, typical)
Cable Coaxial
Passband Typically 0-11 GHz

The C connector is a type of RF connector used for terminating coaxial cable. Coupling uses two-stud bayonet-type locks. The C connector was invented by Amphenol engineer Carl Concelman. It is weatherproof without being overly bulky.