One of the most common applications for coaxial cable is in cable television systems. In these systems, the cable company sends a signal over a coaxial cable to a customer's home. The signal is then decoded by a set-top box or television, allowing the viewer to watch TV channels or access other services like video-on-demand.

Another application for coaxial cable is in data transmission. Coaxial cable can be used to connect home networks, for example, allowing multiple devices to share a single internet connection. It is also used in some high-speed internet services, providing a more stable and secure connection than other types of cables.