CC-B is a 50 ohm male BNC connector.
The center pin solders onto the core wire, providing a low-noise
electrical connection. The outer crimp ferrule is sized for the shield
and jacket of an RG174, RG316, or similar-size coaxial cable --
the maximum cable size which will fit this connector is about 3mm
diameter. Cables with a diameter smaller than 2mm will need heatshrink
added around the jacket to add to their diameter and make a secure
mechanical connection when crimped.
There are two major BNC variants -- 50 ohm and 75 ohm. 50 ohm
connectors are commonly used in professional audio, amateur (ham)
radio, avionics, and on most electronic test equipment. 75 ohm
connectors tend to be used in video and consumer-grade TV equipment.
BNC connectors are usable at frequencies up to around 2 GHz, and are
prone to leakage above 4 GHz.
BNC is an acronym for Bayonet Neill-Concelman, after Paul Neill of
Bell Labs (inventor of the N connector) and Amphenol engineer Carl
Concelman (inventor of the C connector). BNC is often erroneously
expanded to "Baby Neill-Concelman", "Baby N connector", "British Naval
Connector", and "Bayonet Nut Connector".
This connector has a characteristic
impedance of 50 ohms, and needs to be mated with
50 ohm coaxial cable in order to prevent signal loss, noise,
and/or transmitter damage due to signal reflections at the point of
50 ohm coax cable, connectors, and adapters are commonly used in GPS
and wifi (802.11 wireless LAN) antennas, ham transceivers, and other
radio frequency (RF) analog and digital signaling, microwave, radar,
hi-fidelity professional audio, non-destructive testing (NDT), oil and
petroleum production, ultrasonic transducers, accelerometers, strain
gauges, and some professional video applications.