Microwave Transmission - Microwave Radio Relay

Microwave radio relay is a technology for transmitting digital and analog signals, such as long-distance telephone calls, television programs, and computer data, between two locations on a line of sight radio path. In microwave radio relay, microwaves are transmitted between the two locations with directional antennas, forming a fixed radio connection between the two points. The requirement of a line of sight limits the distance between stations to 30 or 40 miles.

Beginning in the 1950s and 1960s networks of microwave relay links, such as the AT&T Long Lines system in the U.S., carried long distance telephone calls and television programs between cities. These included long daisy-chained series of such links that traversed mountain ranges and spanned continents. Much of the transcontinental traffic is now carried by cheaper optical fibers and communication satellites, but microwave relay remains important for shorter distances.

Read more about this topic:  Microwave Transmission

Other articles related to "microwave radio relay, microwave radio relays, radio, microwave":

Economy Of Morocco - Communications - Telephone System
... An improved rural service employs microwave radio relay ... There is a microwave radio relay to Gibraltar, Spain and the Western Sahara ... Coaxial cables and microwave radio relays exist to Algeria ...
Communications In Ethiopia - Overview
... The telephone system consists of open wire and microwave radio relay system adequate for government use ... Domestic systems are open wire microwave radio relay radio communication in the HF, VHF, and UHF frequencies two domestic satellites provide the national trunk service ... International systems are open wire to Sudan and Djibouti microwave radio relay to Kenya and Djibouti satellite earth stations - 3 Intelsat (1 Atlantic Ocean and 2 Pacific Ocean) ...
Telecommunications In Togo
... Zworykin Media Coaxial cable Free-space optical Optical fiber Radio waves Telephone lines Terrestrial microwave Networks ARPANET BITNET Ethernet FidoNet ISDN Internet Local area ...

Famous quotes containing the words microwave and/or radio:

    The New Age? It’s just the old age stuck in a microwave oven for fifteen seconds.
    James Randi (b. 1928)

    from above, thin squeaks of radio static,
    The captured fume of space foams in our ears—
    Hart Crane (1899–1932)