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An antenna rotator (or antenna rotor) is a device used to change the orientation, within the horizontal plane, of a directional antenna. Most antenna rotators...

called the stator ROTOR, a former radar project in the UK following the Second World War Rotor (antenna) In mechanical engineering, the rotor is a part of...

number of passive elements) and is widely used as a directional antenna with an antenna rotor to control the direction of its beam. It suffers from having...

ROTOR was an elaborate air defence radar system built by the British Government in the early 1950s to counter possible attack by Soviet bombers. To get...

optimizing reception than available with a rooftop antenna even if equipped with an antenna rotor. In contrast to the wide television frequency bands...

the armature on the rotor, but these may be reversed. The rotor is the moving part that delivers the mechanical power. The rotor typically holds conductors...

amplifier stages in push-pull configuration or symmetrical antenna tuners where the rotor needs to be "cold", i.e. connected to RF (but not necessarily...

required extremely large antennas to radiate these long waves efficiently. The Grimeton station had a huge multiply-tuned flattop antenna 1.9 km (1.2 miles)...

Pitot and Static -40 Windows, Windshields and Doors -50 Antennas and Radomes -60 Propellers/Rotors -70 Water Lines -80 Detection 31 INDICATING/RECORDING...

asynchronous motor is an AC electric motor in which the electric current in the rotor that produces torque is obtained by electromagnetic induction from the magnetic...

are often used for measuring the angle of a rotating machine such as an antenna platform or transmitting rotation. In its general physical construction...

contra-rotating main rotors. The airframe of the Ka-31 is based on the Kamov Ka-27. One visually distinctive feature of the Ka-31 is the large antenna of the early-warning...

tail rotor itself, boom, or tailfin are damaged by contact. Another type of danger for helicopters that have a tail boom, is that the main rotor and tail...

that lacks nose antenna, a new H025 radar station for all-round visibility, more powerful VK-2500P engines with FADEC and improved rotor blades to increase...

over the entire British Isles. In the late 1940s, the RAF developed the ROTOR plan to provide radar coverage over the UK in a phased rollout. As part...

of a tethered helicopter. It achieved lift by use of two contra-rotating rotors powered by an electric motor that was supplied with power from the ground...

which was previously 3.3 ft (1.0 m) taller until the removal of a VHF antenna reduced its height in 2019. Located 3.5 miles (5.6 km) northeast of Galesburg...

reportedly makes greater use of titanium and composites in its rotor blades and rotor, and replaces the Z-8's boat-shaped lower fuselage with a tail ramp...

Metamaterial antennas are a class of antennas which use metamaterials to increase performance of miniaturized (electrically small) antenna systems. Their...

incorporated mission equipment and corrosion protection for the structure. The rotor system introduced aluminium alloy blades pressurised with nitrogen for crack...