line-of-sight radio relay link

См. также в других словарях:

• Microwave radio relay — is a technology for transmitting digital and analog signals, such as long distance telephone calls and the relay of television programs to transmitters, between two locations on a line of sight radio path. In microwave radio relay, radio waves… …   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

• 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

• Radio-controlled model — A radio controlled model (or RC model) is a model that is steerable with the use of radio control. All types of vehicles imaginable have had RC systems installed in them, including cars, boats, planes, and even helicopters and scale railway… …   Wikipedia

• Rural Radio Network — The Rural Radio Network (RRN) was an interconnected group of six commercial FM radio stations spread across upstate New York and operated from Ithaca, NY the first all radio, no wireline network in the world. [ Pattern for FM Profit: Part 6… …   Wikipedia

• Broadcast relay station — A broadcast relay station, relay transmitter, broadcast translator (U.S.), rebroadcaster (Canada), or repeater (two way radio) is a broadcast transmitter which relays or repeats the signal of another radio station or television station, usually… …   Wikipedia

• Microwave link — A microwave link is a communications system that uses a beam of radio waves in the microwave frequency range to transmit video, audio, or data between two locations, which can be from just a few feet to several miles apart. Microwave links are… …   Wikipedia

• Semaphore line — This article is about the communication system using towers with pivoting shutters. For other uses, see Semaphore (disambiguation). For the now closed railway in Adelaide, Australia, see Semaphore railway line, Adelaide. A Chappe telegraph at… …   Wikipedia

• Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …   Wikipedia

• Two-way radio — receiver which only receives content. Two way radios are available in mobile, stationary base and hand held portable configurations. Hand held radios are often called walkie talkies or handie talkies. A push to talk or Press To Transmit button is …   Wikipedia

• Microwave transmission — The atmospheric attenuation of microwaves in dry air with a precipitable water vapor level of 0.001 mm. The downward spikes in the graph correspond to frequencies at which microwaves are absorbed more strongly, such as by oxygen molecules… …   Wikipedia