BNC is a radio frequency connector, a type of coaxial cable, which is used for connecting data networks and audio/video applications to radios, computers and TVs. If you are looking for audio/visual connector cables for the computer or any other electronic equipment, then BNC connectors could an option to consider.
If you are looking for audio/visual connector cables to connect your new portable media player and stereo speakers to the computer, or replacing the old ones because of signal interference, then BNC connectors can be a very good option.
BNC connector is an acronym for Bayonet Neill-Concelman connector. BNC is a Radio Frequency connector, a type of coaxial cable, which is used for connecting data networks and audio/video applications to radios, computers, TVs and other radio frequency electronic equipment. This connector derived its name from two things - firstly, from the used technology of the connection, and secondly, from the names of its very own creators, Carl Concelman and Paul Neill, of Bell Labs.
BNC connector has a bayonet-like shell plug (the male portion) with two small pins that fit into the spiral slots on the receptacles (the female portion) of the connector. After the plug has been inserted into the receptacles, it is twisted into a locking position. This connector is generally used on 10BASE-2 thin Ethernet networks, on both ends - the chain interactions and the network cards.
There are two versions of BNC connectors, 50 Ohm and 75 Ohm. These are matched with the cables of the same properties for use. Frequencies below 2GHz use 50 Ohm while that below 4GHz use 75 Ohm. In the beginning, only 50 Ohm versions of BNC connectors were produced. At the time of its application, it was joined with various other cables and the difference occurring in the wires was unnoticeable at lower frequencies. Later on, the 75 Ohm category emerged, which can be recognized by the absent or the reduced dielectric at each mating end. For DS3 Telco central office applications, 75 Ohm BNC connectors are used, while 50 Ohm is used for RF and data.
A BNC connector is most commonly used for RG58 cables in order to terminate its coaxial cable. Once the BNC connector is joined to the RG58 cable, compound video is produced just like the one from the commercial video equipment. A lot of coaxial cables should not be used for interconnecting BNC connectors and RG58 cables, as it will lead to ground loops generating an unwanted stream of current in the conductor that attaches the two points at the same potential.
Some people use BNC connector to connect the monitors in order to maximize the accuracy of the signals released by the video adapter. It makes for an ideal alternative to the RCA connector, when cable connector is used for common composite video devices. It is actually another form of RCA connector which is often used with RCA jacks by some large consumer electronic devices through a simple adapter. For higher frequencies, TNC (Threaded Neill-Concelman) connectors are adapted, as it offers standard performance.
For buying BNC connectors or any other kind of audio/visual cables, you can go on the internet. There are many online stores that offer all kinds of cables including network cables, audio/visual cables, etc. at affordable prices.
