- long-range propagation
- Техника: дальнее распространение
Универсальный англо-русский словарь. Академик.ру. 2011.
long-range propagation
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Long-range Wi-Fi — is used for low cost, unregulated point to point connections, as an alternative to cellular networks, microwave or satellite links. The use of the term long range wifi as depicted on this page for extreme ranges is not in any way endorsed by the… … Wikipedia
Long Ta — The Long Ta (also known as Dragon Tower) (Chinese: 龙塔; pinyin: lóng tǎ) in Harbin, Heilongjiang, China is a tall tower of lattice steel used for communication. It was built in 2000 and rises to 336 m (1102 ft). Contents … Wikipedia
Radio propagation beacon — A radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on HF, VHF, UHF, and microwave frequencies.… … Wikipedia
tropospheric propagation — Electromagnetic field propagation within the troposphere to achieve long range communication over hundreds of miles. In the lower part of the earth’s atmosphere, electromagnetic energy may be reflected/refracted within and between air masses of… … Aviation dictionary
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
Fruit tree propagation — is usually carried out through asexual reproduction by grafting or budding the desired variety onto a suitable rootstock. Perennial plants can be propagated either by sexual or vegetative means. Sexual reproduction occurs when male pollen from… … Wikipedia
Sporadic E propagation — Sporadic E or Es is an unusual form of radio propagation utilizing characteristics of the earth s ionosphere. Whereas most forms of sky wave propagation use the normal and cyclic ionization properties of the ionosphere s F region to refract (or… … Wikipedia
Early warning radar — An early warning radar is any radar system used primarily for the long range detection of its targets, i.e., allowing defences to be alerted as early as possible before the intruder reaches its target, giving the defences the maximum time in… … Wikipedia
Helicopter noise reduction — is a topic of research into designing helicopters which can be operated more quietly, reducing the public relations problems with night flying or expanding an airport. In addition, it is useful for military applications in which stealth is… … Wikipedia
climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… … Universalium
