75 ohms cable is used for all video application (baseband video, monitor cables, antenna networks cable TV, CCTV etc. ), and for telecommunication application.
CATV (Community Antenna Television) and MATV (Master Antenna Television) 75 Ohm coaxial cables are divided into three different installation groups.
Trunk or Feeder Cable: The connection between the transmitters at the cable company to the trunk amplifier.
Distribution Cable: The connection from the trunk amplifier to the drop cable at the curb.
Drop Cable: The connecting cable from the Distribution line into the house.
CCTV Coaxial Cables - 75 Ohm Used in closed-circuit television (CCTV) applications.