Description

Coaxial cable is commonly used by cable operators, telephone companies, and internet providers around the world to convey data, video, and voice communications to customers. It has also been used extensively within homes.

It has been around for a long time as a technology (since the early 20th century) and has many singular advantages for reliable, accurate transmission.

The three most common cable sizes are RG-6, RG-11 and RG-59:

• RG stands for “radio guide.” The numbers of the various versions of RG cable refer to the diameter (59 meaning .059, and 6 meaning .06, etc.). They are also called RF cables, which stands for “radio frequency”.
• Most non-industrial coax is now known as RG-6, but installers may use a thicker cable, like RG-11.
• RG cables used in homes should be 75 ohm impedance.