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KCRA-TV (channel 3) is a television station in Sacramento, California, United States, affiliated with NBC. It is owned by Hearst Television alongside Stockton -licensed dual CW / MyNetworkTV affiliate KQCA (channel 58). The two stations share studios on Television Circle off D Street in downtown Sacramento; KCRA-TV's transmitter is located in ...
Daniel Irvin Rather Jr. ( / ˈræðər /; born October 31, 1931) is an American journalist, commentator, and former national evening news anchor. He began his career in Texas, becoming a national name after his reporting saved thousands of lives during Hurricane Carla in September 1961. In his first national broadcast, he helped initiate the ...
The KXTV/KOVR Tower (also known as the .3. Sacramento Joint Venture Tower) is a 2,049 ft (625 m) guyed communication tower in Walnut Grove, California, United States . Built in 2000, it is the tallest structure in California, the third-tallest guyed mast in the world (as of 2001), and the seventh tallest structure to have ever existed if the ...
However, since humans reflect far less radar energy than metal does, these systems require sophisticated technology to isolate human targets and moreover to process any sort of detailed image. Through-the-wall radars can be made with Ultra Wideband impulse radar, micro-Doppler radar, and synthetic aperture radar (SAR). Imaging radar; 3D radar
Continuous-wave radar ( CW radar) is a type of radar system where a known stable frequency continuous wave radio energy is transmitted and then received from any reflecting objects. [1] Individual objects can be detected using the Doppler effect, which causes the received signal to have a different frequency from the transmitted signal ...
NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the ...
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Weather radar, also called weather surveillance radar ( WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the ...