TV waves are transmitted from TV broadcasting stations using antennas. TV antennas can be mounted on top of buildings or on towers and are designed to transmit and receive TV signals. When a TV antenna receives a TV signal, it converts the signal into an electrical signal that can be processed by a television set.
The television set then decodes the electrical signal and converts it back into audio and video information, which is displayed on the TV screen.
Here are some specific uses of TV waves:
1. Broadcast television: TV waves are used to broadcast over-the-air television signals from TV broadcasting stations to homes and businesses with TV antennas. This type of broadcasting is commonly known as terrestrial television or free-to-air television.
2. Cable television: TV waves are also used for cable television, where TV signals are transmitted through optical fibers and coaxial cables to subscribers' homes and businesses.
3. Satellite television: In satellite television, TV signals are transmitted from satellites in orbit around the Earth to subscriber's homes or businesses with satellite dishes.
4. Mobile television: With the advancement of technology, TV waves are being used for mobile television, allowing viewers to watch television on mobile devices such as smartphones and tablet computers.
TV waves have played a crucial role in mass communication and entertainment since the early 20th century and continue to evolve with the ever- changing requirements of the broadcast and telecommunications industries.