CATV (Community Antenna Television) is a system that delivers television signals via coaxial cables to subscribers. It was originally developed in the 1940s in areas where over-the-air TV signals were weak due to geographical barriers like mountains. By using large community antennas placed in high locations, signals were captured and distributed through cables to individual households.
Over time, CATV evolved and became known as “cable television.” It expanded beyond just transmitting TV signals, incorporating additional features such as more channels, clearer picture quality, and eventually internet and phone services. Modern cable systems often use hybrid fiber-coaxial (HFC) technology, which combines optical fibers and coaxial cables, allowing for higher bandwidth and faster data transmission.
Key Features of CATV:
- Coaxial Cable: The primary medium used for transmitting television signals.
- Community Antenna: A large shared antenna to capture broadcast signals, which are then distributed to homes.
- Multiple Channels: Offers a wider range of programming compared to traditional over-the-air broadcasting.
- Bidirectional Services: Many modern CATV systems also support internet, voice, and interactive services.
CATV paved the way for modern cable TV and broadband communication systems, becoming a major part of the telecommunications industry.
