C connector

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C connector
C connector.JPG
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. The mating arrangement is similar to that of the BNC connector.

Picture to show the similarity between 50ohm and 75ohm C connectors