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Quartet of two-dipole Yagi arrays (Hirschgeweih) of the German FuG 220 VHF-band radar on the nose of a late-World War II Bf 110 night fighter aircraftThe antenna was invented by Shintaro Uda of Tohoku Imperial University, Japan, [5] in 1926, with a lesser role played by Hidetsugu Yagi.
Most sizes of VESA mount have four screw-holes arranged in a square on the mount, with matching tapped holes on the device. The horizontal and vertical distance between the screw centres respectively labelled as 'A', and 'B'. The original layout was a square of 100mm. A 75 mm × 75 mm (3.0 in × 3.0 in) was defined for smaller displays.
A monitor mount placed at the appropriate height, distance and angle can help “prevent possible health effects such as excessive fatigue, eye strain, and neck and back pain.” [2] Monitor mounts are especially important for anyone using a standing or walking desk because of the dynamic height and stability requirements for those applications.
The front cover of the 1979 Neiman-Marcus Christmas catalog featured the first home satellite TV stations on sale. [2] The dishes were nearly 20 feet (6.1 m) in diameter. [ 3 ] The satellite dishes of the early 1980s were 10 to 16 feet (3.0 to 4.9 m) in diameter [ 4 ] and made of fiberglass with an embedded layer of wire mesh or aluminium foil ...
Celestron telescopes offer the option to use computerized location of astronomical objects as well as mounts that will aim themselves at any given object, a technology known as GoTo. Most of the computerized models can be connected to an external computer via an RS-232 cable, allowing them to be controlled by a third-party astronomy program or ...
D-Series: Full-HD TV; V-Series: Smart TV. [46] The V- and D- series come in sizes from 24 to 75 inches and use direct LED backlight. [47] M-Series Quantum: HDR TV. [48] The 2022 models have local dimming up to 32 zones, and come in sizes from 43 to 75 inches. They are LCD TVs with 4K resolution and standard HDMI 2.0 that support AMD FreeSync. [47]
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