line-of-sight coverage

См. также в других словарях:

• 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

• Coverage map — Coverage maps are designed to indicate the service areas of radiocommunication transmitting stations. Typically these may be produced for radio or television stations, for mobile telephone networks and for satellite networks. Such maps are… …   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

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• WJIV — Infobox Radio station name = WJIV city = Cherry Valley, New York area = Utica Rome slogan = branding = Victory 102 frequency = 101.9 MHz repeater = 105.5 (Bernardston, MA) 94.3 (Greenville, NH) 99.1 (Utica) airdate = share = 0.5 share as of = Sp… …   Wikipedia

• Mumbai Amateur Radio Society — MARS logo Formation 2000 08 07 Type Registered society Headquarters Fort …   Wikipedia

• radar contact lost — i. A term used by air traffic control (ATC) to inform a pilot that the radar data used to determine the aircraft’s position are no longer available. The loss may be attributed to several factors, including the aircraft’s merging with weather or… …   Aviation dictionary

• 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

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• Navigation — This article is about determination of position and direction on or above the surface of the earth. For other uses, see Navigation (disambiguation). Table of geography, hydrography, and navigation, from the 1728 Cyclopaedia. Navigation is the… …   Wikipedia

• Very high frequency — (VHF) is the radio frequency range from 30 MHz to 300 MHz. Frequencies immediately below VHF are denoted High frequency (HF), and the next higher frequencies are known as Ultra high frequency (UHF). The frequency allocation is done by ITU. Common …   Wikipedia