troposphere scatter communication

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• scatter communication — scatter communication, long distance communication using the troposphere or other areas of atmospheric ionization to deflect radio waves over a long distance …   Useful english dictionary

• tropospheric scatter — ☆ tropospheric scatter n. scattering in the earth s troposphere, used in scatter communication at VHF and UHF for ranges beyond line of sight …   English World dictionary

• Tropospheric scatter — (or troposcatter) is the scattering of distant TV and FM radio stations by the troposphere so that they travel farther than the line of sight. This effect sometimes allows reception of stations up to a hundred miles away.The phenomenon has been… …   Wikipedia

• tropospheric scatter/troposcatter — The propagation of electromagnetic waves by scattering as a result of irregularities or discontinuities in the physical properties of the troposphere. At the frequencies above 150 MHz, the atmosphere has a scattering effect on electromagnetic… …   Aviation dictionary

• North Atlantic Radio System — The North Atlantic Radio System (NARS) was a chain of five tropospheric scatter communication sites that stretched from Iceland to RAF Fylingdales, forming an extension of the Distant Early Warning Line (DEW Line). Contents 1 Development 2 NARS… …   Wikipedia

• Ionosphere — The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner …   Wikipedia

• Radio propagation — is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another. [ H. P. Westman et al, (ed), Reference Data for Radio Engineers, Fifth Edition , 1968, Howard W. Sams and Co.,… …   Wikipedia

• Non-line-of-sight propagation — Non line of sight (NLOS) or near line of sight is a term used to describe radio transmission across a path that is partially obstructed, usually by a physical object in the innermost Fresnel zone. Many types of radio transmissions depend, to… …   Wikipedia

• telecommunications media — Introduction       equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation       Every… …   Universalium

• List of radio propagation topics — This is a list of radio propagation terms. NOTOC A a index A index aa index active prominence active prominence region (APR) active region active surge region (ASR) active dark filament (ADF) AE index Air Force Geophysics Laboratory (AFGL) arch… …   Wikipedia

• Weather radar — in Norman, Oklahoma with rainshaft …   Wikipedia