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long-range antenna

См. также в других словарях:

  • 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 range locator — A long range locator is a device purported to be a type of metal detector used to detect deposits of gold or similar precious materials; most are said to operate on a principle of resonance with the material being detected. Many treasure hunters… …   Wikipedia

  • Antenna measurement — techniques refers to the testing of antennas to ensure that the antenna meets specifications or simply to characterize it. Typical parameters of antennas are gain, radiation pattern, beamwidth, polarization, and impedance.The antenna pattern is… …   Wikipedia

  • air defense long-range radar — A military radar sensor system composed of a transmitter, an antenna, and associated communications that can detect and track targets at all azimuths, ranges, and elevations. It is used for tactical warning and attack assessment and command and… …   Aviation dictionary

  • Antenna (radio) — Whip antenna on car …   Wikipedia

  • Antenna height considerations — The Aspects for Antenna heights considerations are depending upon the wave range and economical reasons.Longwave/Low frequency antennasAt VLF, LF and MF the radio mast or tower is often used directly as an antenna. Its height determines the… …   Wikipedia

  • antenna — antennal, adj. /an ten euh/, n., pl. antennas for 1, antennae / ten ee/ for 2. 1. a conductor by which electromagnetic waves are sent out or received, consisting commonly of a wire or set of wires; aerial. 2. Zool. one of the jointed, movable,… …   Universalium

  • 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

  • HRS antenna — HRS type antennas are more or less the standard antenna used for long distance high power shortwave broadcasting (> 1000 km). Contents 1 History of HRS design 2 Nomenclature 3 A versatile antenna type …   Wikipedia

  • Rhombic antenna — signal gathering action compared to other end fire, backfire and traveling wave types. A rhombic antenna is a broadband directional antenna co invented by Edmond Bruce and Harald Friis,[1] mostly commonly used in HF (high frequency, also called… …   Wikipedia

  • T antenna — i. An antenna for operations in the VHF (very high frequency) band of frequencies that is T shaped. This type of antenna is used on light aircraft. The antenna can be mounted either on the top or the bottom of the fuselage. ii. An antenna for… …   Aviation dictionary

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