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Learn about the definition, types, attributes, and examples of emergency communication systems (ECS), which support one-way and two-way communication of emergency information. ECS are designed to convey information over multiple devices, from signal lights to text messaging to live, streaming video.
Learn about the history, equipment, and categories of military communications, or conveyance of information, by armed forces. Find out how military communications support command, control, and intelligence, and how they evolved from runners and signals to radio and satellites.
Learn about the history, standards, and features of PMR systems, which are two-way radio voice communications systems for specific organizations or general commercial use. Find out how PMR frequencies are used, shared, and modulated in different regions and applications.
Learn about the types, functions and vendors of telecoms equipment, such as switches, transmission lines, satellites, mobile phones and semiconductors. Find out how the internet has blurred the boundary between telecoms and IT hardware.
Wired communication is the transmission of data over a wire-based technology, such as telephone networks, cable TV or internet access, and fiber-optic communication. Learn about the advantages, examples and legal definition of wired communication compared to wireless communication.
A land mobile radio system (LMRS) is a person-to-person voice communication system consisting of two-way radio transceivers (an audio transmitter and receiver in one unit) which can be stationary (base station units), mobile (installed in vehicles), or portable (handheld transceivers e.g. "walkie-talkies").
A communications system is a collection of components that enable communication through various media and technologies. Learn about the types, examples, and key components of communications systems, such as optical, radio, power line, duplex, and antenna.
Learn about the electronic devices that are required for communication and interaction between devices on a computer network. Find out the types, functions and examples of networking hardware, such as routers, switches, bridges, firewalls and more.