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    BNC Connectors

    Markertek has delivered the world's largest selection of BNC connectors and adapters for over 30 years. BNC connectors are designed for today's demanding needs, including 12G-SDI, in applications ranging from studio installs to live stadium events. We have BNC connectors from Amphenol, Canare, Kings, ADC and Trompeter.

    What is a BNC Connector? Originally built for military use, and short for Bayonet Neill-Concelman (i.e. the bayonet design and the two inventors), BNC is a type of coaxial cable for RF connections. It is designed with two bayonet lugs for quick quarter turn connect/disconnect and used in critical applications where accidental disconnect is minimized. BNC cables are often used with radio-frequency electronics, audio recording equipment, aviation, antennas and other professional equipment.

    Common Types of BNC Connectors There are two common BNC types in the broadcast industry: 50Ω and 75Ω. Typically, the 75Ω cable has a smaller dielectric, and the connector housing has different dimensions than the 50Ω version. 50Ω connectors are designed to be used up to 4 GHz, while 75Ω cables are intended for 2 GHz or less.

    Can I Use 50 and 75 Ohm Cables Together? BNC connectors are compatible with each other, even if they have a different electrical resistance. The 50Ω and 75Ω versions comply with IEC standards, which means they can mate with no adverse effects.

    What is a Reverse Polarity BNC? Typically, this cable variation switches the female contact to the plug, and the male contact to the jack. These non-standard cables are often used to connect W-LAN components.

    To learn more about our BNC connectors, call us toll-free at 800-522-2025 or chat with us live. We offer free shipping on all orders!

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