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A tactical communications system is a communications system that (a) is used within, or in direct support of tactical forces (b) is designed to meet the requirements of changing tactical situations and varying environmental conditions, (c) provides securable communications, such as voice, data, and video, among mobile users to facilitate ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 20 December 2024. Transmission of information For other uses, see Communication (disambiguation). "Communicate" redirects here. For other uses, see Communicate (disambiguation). There are many forms of communication, including human linguistic communication using sounds, sign language, and writing as ...
Each of the four main components has several key attributes. Source and receiver share the same four attributes: communication skills, attitudes, knowledge, and social-cultural system. Communication skills determine how good the communicators are at encoding and decoding messages. Attitudes affect whether they like or dislike the topic and each ...
As such, slow communications technologies like postal mail and pneumatic tubes are excluded from the definition. [ 1 ] [ 2 ] Many transmission media have been used for telecommunications throughout history, from smoke signals , beacons , semaphore telegraphs , signal flags , and optical heliographs to wires and empty space made to carry ...
Frank Dance's helical model of communication was initially published in his 1967 book Human Communication Theory. [ 161 ] [ 162 ] [ 163 ] It is intended as a response to and an improvement over linear and circular models by stressing the dynamic nature of communication and how it changes the participants.
For communication to occur, protocols have to be selected. The rules can be expressed by algorithms and data structures. Hardware and operating system independence is enhanced by expressing the algorithms in a portable programming language. Source independence of the specification provides wider interoperability.
It was later published in 1949 as a book titled The Mathematical Theory of Communication (ISBN 0-252-72546-8), which was published as a paperback in 1963 (ISBN 0-252-72548-4). The book contains an additional article by Warren Weaver, providing an overview of the theory for a more general audience. [12]
A physical medium in data communications is the transmission path over which a signal propagates. Many different types of transmission media are used as communications channel . In many cases, communication is in the form of electromagnetic waves.