Types of broadcasting
1. Telephone broadcasting: the earliest form of electronic broadcasting that uses telephone as the medium of broadcast.
2. Radio broadcasting: involves the transmission of audio signal through the air as radio waves from a transmitter, picked up by an antenna and sent to the receiver (radio).
3. Television broadcasting: involves the transmission of video signals in addition to audio signals from a transmitter to an antenna and finally to the receiving television.
4. Satellite TV systems: are meant for direct-to-home broadcast programming. It offers a mix of traditional radio or television station broadcast programming or both, with dedicated satellite radio programming. Examples include cable television station such as CNN, BBC, SuperSport etc.
5. Webcasting: It is the broadcasting of live or delayed audio/video information using the internet.
Types of Telecommunication Systems
1. Public Switched Telephone Network (PSTN) – land line
PSTN also refers to as Plain Old Telephone Service (POTS), is a worldwide net of telephone lines using fiber optic cables, microwave transmission links, cellular networks and communication satellite connected by switching centers, which allows any telephone in the world to communicate with any other.
2. Mobile Phone System (GSM)
GSM stands for Global System for Mobile communication. It is the most popular standard for mobile telephony systems in the world. GSM is considered a “second generation (2G)” mobile phone system. GSM uses a SIM (Subscriber Identity Module) card. The SIM card is tied to your cell phone service carrier’s network rather than to the handset itself. Virtually all mobile phones are 3G compliant while some countries have also launched the 4G network.
3. Circuit Switched Packet Telephone Systems (CSPT)
When you hear the term circuit switching, think phone call. A circuit switching network establishes a circuit (or channel) between a sender and a receiver before they can communicate, as if the sender and the receiver were physically connected with an electric circuit. If communication is taking place in a dedicated channel, the channel remains unavailable to other users.
4. Satellite Telephone System: A satellite telephone connects to the orbiting satellites instead of terrestrial cell sites like the MTN or GLO mast. Depending on the architecture of a particular system, coverage may include the entire earth or only specific regions.
5. Fixed wireless telephone system: Fixed wireless is the operation of wireless devices or systems used to connect two fixed location (e.g. building) with a radio or other wireless link, such as Laser Bridge. The purpose of a fixed wireless telephone link is to enable telecommunications between the two sites or buildings.