point-to-point radio transmission
81Data transmission — Data transmission, digital transmission, or digital communications is the physical transfer of data (a digital bit stream) over a point to point or point to multipoint communication channel. Examples of such channels are copper wires, optical… …
82Langenberg transmission tower — The Sender Langenberg (also translated as Transmission Facility Langenberg ) is a broadcasting station that transmits MW, FM and TV signals. It is located in Langenberg, Velbert, Germany and has had a very turbulent history since its inauguration …
83Shortwave radio — Shortwave can also refer to a shortwave trough meteorology. A solid state, analog shortwave receiver Shortwave radio refers to the upper MF (medium frequency) and all of the HF (high frequency) portion of the radio spectrum, between… …
84Metropolitan Opera radio broadcasts — For the Sirius XM channel, see Metropolitan Opera Radio (Sirius XM). Metropolitan Opera Genre full length live opera performances Running time 3.5 to 4 hours, weekly Country …
85USA Radio Network — The USA Radio Network is a syndicator of talk radio programming established in 1985. It provides programming to approximately 1,100 radio stations around the world, plus the American Forces Network and XM Satellite Radio, and can be heard on the… …
86Amateur radio history — Throughout the history of amateur radio, amateur radio enthusiasts have made significant contributions to science, engineering, industry, and social services. Research by amateur radio operators has founded new industries, built economies,… …
87Automatic transmission system — An automatic transmission system (or occasionally automated transmission system, to avoid confusion with the automatic transmission of an automobile) is an automated system designed to keep a radio transmitter and antenna system running without… …
88Packet radio — Le packet radio est une forme de transmission de données numériques utilisée pour créer un lien entre ordinateurs. L utilisation la plus courante du packet radio est faite par les radioamateurs afin de construire des réseaux sans fils d… …
89Types of radio emissions — The International Telecommunication Union uses an internationally agreed system for classifying radio frequency signals. Each type of radio emission is classified according to its bandwidth, method of modulation, nature of the modulating signal,… …
90History of radio — The pre history and early history of radio is the history of technology that produced radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio.… …
