Telecommunications

thumb|upright=1.4|Earth station at the satellite communication facility [[Raisting Earth Station in Raisting, Bavaria, Germany]]

right|upright=0.9|thumb|Replica of a Chappe telegraph on the Litermont near [[Nalbach, Germany]]

computer network that connects devices across a large distance and area

wireless communication standards

alt=|thumb|A broadcasting antenna in Stuttgart

historical period

transfer of data over a point-to-point or point-to-multipoint communication channel

thumb|An expendable dropsonde used to capture weather data. The telemetry consists of sensors for pressure, temperature, and humidity and a wireless transmitter to return the captured data to an aircraft. thumb|300px|A saltwater crocodile with a GPS-based satellite transmitter attached to its head for tracking Telemetry is the in situ collection of measurements or other data at remote points and their automatic transmission to receiving equipment (telecommunication) for monitoring. The word is derived from the Greek roots tele, 'far off', and metron, 'measure'. Systems that need external instr

Telephony ( ) is the field of technology involving the development, application, and deployment of telecommunications services for the purpose of electronic transmission of voice, fax, or data, between distant parties. The history of telephony is intimately linked to the invention and development of the telephone.

signal used to represent data as a sequence of discrete values

thumb|250px|The node (physics)|nodes of a vibrating string are harmonics. thumb|Two different notations of natural harmonics on the cello. First as sounded (more common), then as fingered (easier to sightread).

A telegram is a written or printed message, originally sent through telegraphy. The use of the telegrams was popular for social and business correspondence in the latter half of the 19th and the first half of the 20th century. Even in the telephone age, the telegram remained popular, and spawned its own style of writing that in turn persisted in other media. Telegram services still exist today, though the popularity has largely waned, replaced by other forms of text communication. alt=Western Union telegram sent to President Dwight Eisenhower wishing him a speedy recovery from his heart attack

cryptographic paradigm involving uninterrupted protection of data traveling between two communicating parties

communication at a distance using light to carry information

thumb|300px|Russian president Dmitry Medvedev held a teleconference with [[Russian Railways president Vladimir Yakunin on the consequences of the 2009 Nevsky Express bombing.]]

architectural framework of telecommunications

military operations and doctrine regarding communications

mobile communication standard and major enhancement of the Long Term Evolution (LTE) standard

cellular telephone site where antennae and electronic communications equipment are placed — typically on a radio mast, tower, or other raised structure — to create a cell (or adjacent cells) in a cellular network

communications channel that connects two or more communicating devices

collection of systems used in telecommunications

type of audio-only broadcast network

Ukrainian telecommunications company

process of intercepting and examining messages

communications medium using fluorescent bulbs or LEDs

international standard for electrical and optical cables

communication between planetary systems

measure

A Software-Defined Wide Area Network (SD-WAN) is a wide area network that uses software-defined networking technology, such as communicating over the Internet using overlay tunnels which are encrypted when destined for internal organization locations.

A nanonetwork or nanoscale network is a set of interconnected nanomachines (devices a few hundred nanometers or a few micrometers at most in size) which are able to perform only very simple tasks such as computing, data storing, sensing and actuation. Nanonetworks are expected to expand the capabilities of single nanomachines both in terms of complexity and range of operation by allowing them to coordinate, share and fuse information. Nanonetworks enable new applications of nanotechnology in the biomedical field, environmental research, military technology and industrial and consumer goods app

electronic text communication device

type of communication network node

service provided by a telecommunications provider

T.38 is an ITU recommendation for allowing transmission of fax over IP networks (FoIP) in real time.

police broadcast

application of traffic engineering theory to telecommunications

anything which modifies, or disrupts a communication signal

component of an analog signal with the same sign on two signal leads

quality management system standard for the information and communication technology sector

measure of the delight or annoyance of a customer’s experiences with a service

extension of the video compression standard H.264/MPEG-4 AVC

information theory quantity

Wikimedia portal

measure to quantify the performance of a digital radio transmitter or receiver in a communications system using digital modulation

methods of relaying information to and from aircraft

data services for the public

concept in computer vision to detect changes in image sequences