line-of-sight propagation wikipedia - EAS

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  1. Line-of-sight propagation refers to electro - magnetic radiation including light emissions traveling in a straight line. The rays or waves are diffracted, refracted, reflected, or absorbed by atmosphere and obstructions with material and generally cannot travel over the horizon or behind obstacles.
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    What is line of sight propagation?
    Line of sight propagation to an antenna. Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves travel in a direct path from the source to the receiver. Electromagnetic transmission includes light emissions traveling in a straight line.
    en.wikipedia.org/wiki/Line-of-sight_propagation
    What is non-line-of-sight propagation?
    Non-line-of-sight propagation. Non-line-of-sight (NLOS) and near-line-of-sight are radio transmissions across a path that is partially obstructed, usually by a physical object in the innermost Fresnel zone. Many types of radio transmissions depend, to varying degrees, on line of sight (LOS) between the transmitter and receiver.
    en.wikipedia.org/wiki/Non-line-of-sight_propagation
    What are the obstructions that may fall in the line of sight?
    Objects within the Fresnel zone can disturb line of sight propagation even if they don't block the geometric line between antennas. Low-powered microwave transmitters can be foiled by tree branches, or even heavy rain or snow. The presence of objects not in the direct line-of-sight can cause diffraction effects that disrupt radio transmissions.
    en.wikipedia.org/wiki/Line-of-sight_propagation
    What are impairments in line-of-sight propagation?
    Impairments to line-of-sight propagation. This effect can be reduced by raising either or both antennas further from the ground: The reduction in loss achieved is known as height gain . See also Non-line-of-sight propagation for more on impairments in propagation.
    en.wikipedia.org/wiki/Line-of-sight_propagation
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    https://en.wikipedia.org/wiki/Line-of-sight_propagation

    Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves travel in a direct path from the source to the receiver. Electromagnetic transmission includes light emissions traveling in a straight line. The rays or waves may be diffracted, … See more

    Low-powered microwave transmitters can be foiled by tree branches, or even heavy rain or snow. The presence of objects not in the direct line-of-sight can cause diffraction effects that disrupt radio transmissions. For … See more

    The radio horizon is the locus of points at which direct rays from an antenna are tangential to the surface of the Earth. If the Earth were a perfect sphere without an atmosphere, the See more

    Overview image
    Mobile telephones image

    Although the frequencies used by mobile phones (cell phones) are in the line-of-sight range, they still function in cities. This is made possible by a combination of the following effects:
    • 1⁄r propagation over the rooftop landscape See more

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  4. https://en.wikipedia.org/wiki/Non-line-of-sight_propagation

    Non-line-of-sight (NLOS) radio propagation occurs outside of the typical line-of-sight (LOS) between the transmitter and receiver, such as in ground reflections. Near-line-of-sight (also NLOS) conditions refer to partial obstruction by a physical object present in the innermost Fresnel zone.
    Obstacles that commonly cause NLOS propagation include buildings, trees, hills, mountains, and, in some cases, high voltage electric power lines. Some of these obstructions reflect certain radio f…

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    • Line-of-sight propagation - HandWiki

      https://handwiki.org/wiki/Line-of-sight_propagation

      Dec 4, 2022 · Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves travel in a direct path from the source to the …

      What is the line of sight of a radio?
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    • Line-of-sight propagation – Wikipedia – Enzyklopädie

      https://wiki.edu.vn/en/wiki6/line-of-sight-propagation-wikipedia

      Line of sight propagation to an antenna. Line-of-sight propagationis a characteristic of electromagnetic radiation or acoustic wave propagation which means waves travel in a direct …

    • Line-of-sight propagation - Wikipedia @ WordDisk

      https://worddisk.com/wiki/Earth_bulge

      Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves travel in a direct path from the source to the receiver. …

    • Wikizero - Line-of-sight propagation

      https://wikizero.com/www///Line_of_sight_propagation

      Line of sight propagation to an antenna Line-of-sight propagationis a characteristic of electromagnetic radiationor acoustic wave propagationwhich means waves travel in a direct …

    • Line-of-sight propagation - wblog.wiki

      https://wblog.wiki/en/Line-of-sight_propagation

      Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves travel in a direct path from the source to the receiver. …

    • Non-line-of-sight propagation - owly.wiki

      https://owly.wiki/en/Non-line-of-sight_propagation

      Near-line-of-sight (also NLOS) conditions refer to partial obstruction by a physical object present in the innermost Fresnel zone. Obstacles that commonly cause NLOS propagation include …

    • https://golden.com/wiki/Non-line-of-sight_propagation-P4A434

      NLOS propagation is necessary because of the obstacles in line-of-sight communications. These impairments can include tall buildings, trees, the physical landscape, and high-voltage …

    • Line-of-sight propagation - GID.wiki

      https://gid.wiki/wiki/pt/Line-of-sight_propagation

      Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves travel in a direct path from the source to the receiver. …

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