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The box needed to output radio frequency signals (compatible with a television's antenna input), composite video, and stereo audio. It had to include a remote control, and be compatible with universal remotes. The units had to support both a 4:3 center crop of a 16:9 transmitted image, and a letterboxed rendition of a 16:9 transmitted image.
The original television remote control was a wired version, released in 1950, that soon attracted complaints about an unsightly length of cable from the viewer's chair to the television receiver. Eugene F. McDonald , Zenith President and founder, ordered his engineers to develop a wireless version, but the use of radio waves was soon discounted ...
In electronics, an antenna amplifier (also: aerial amplifier or booster) is a device that amplifies an antenna signal, usually into an output with the same impedance as the input impedance. Typically 75 ohm for coaxial cable and 300 ohm for twin-lead cable. An antenna amplifier boosts a radio signal considerably for devices that receive radio ...
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In radio-frequency engineering and communications engineering, a waveguide is a hollow metal pipe used to carry radio waves. [1] This type of waveguide is used as a transmission line mostly at microwave frequencies, for such purposes as connecting microwave transmitters and receivers to their antennas, in equipment such as microwave ovens, radar sets, satellite communications, and microwave ...
The first full scale beam waveguide antenna was the 64 meter antenna at the Usuda Deep Space Center, Japan, built in 1984 by the Japan Aerospace Exploration Agency. [6] After the Jet Propulsion Lab (JPL) tested this antenna and found it better than their conventional 64-meter antennas, [ 7 ] they too switched to this method of construction for ...
The abbreviation CATV is used in the US for cable television and originally stood for community antenna television, from cable television's origins in 1948; in areas where over-the-air TV reception was limited by distance from transmitters or mountainous terrain, large community antennas were constructed, and cable was run from them to ...
In April 2011, Ford stopped accepting orders for the CVPI. Following the 2011 model year, due to its lack of electronic stability control, the Crown Victoria was no longer legal for sale in the United States and Canada; a short 2012 model year was produced solely for GCC/Middle East export. The last Crown Victoria Police Interceptor rolled off ...