75 Ohn Coaxial Jack
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75-ohm coaxial jack
Sometimes called an "RF input," this kind of jack is commonly used for hooking up antennas, cable boxes, VCRs, TVs, etc. A 75-ohm coaxial cable can carry video and stereo audio information simultaneously. RF cable connectors (often called "F-type" connectors) either screw onto the 75-ohm jack, or just push on to connect.
There are different types of coaxial cable. Standard coaxial cable is stamped "RG-59"; higher-quality "RG-6" cable features better shielding, and exhibits less high-frequency loss over longer runs. (For connecting DBS satellite systems, it's essential to use RG-6 cable to correctly pass the entirety of the digital signal.)
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