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On June 29, 2007, WHIO-TV debuted its new doppler weather radar, initially billed as "New Live Doppler 7", then "Live Doppler 7 HD". The radar was used in every weathercast and, for several years, on the station's website, but, though retaining the "Live Doppler 7" name on-air, WHIO discontinued operation of its radar in June 2021.
The history of radar (where radar stands for radio detection and ranging) started with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell 's seminal work on electromagnetism.
Doppler effect. The emitted signal toward the car is reflected back with a variation of frequency that depends on the speed away/toward the radar (160 km/h). This is only a component of the real speed (170 km/h). The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference ...
WHIO (AM) / 39.67889°N 84.13028°W / 39.67889; -84.13028. The Cox Enterprises broadcasting tower was located outside the old studio in Kettering, Ohio before the studio building on Wilmington Pike was torn down in 2017. WHIO (1290 kHz) – branded AM 1290 and News 95.7 WHIO – is a commercial talk AM radio station licensed to serve ...
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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 ...
The 1974 Xenia tornado was a violent F5 tornado that destroyed a large portion of Xenia and Wilberforce, Ohio, United States on the afternoon of April 3, 1974. It was the deadliest individual tornado of the 1974 Super Outbreak, the 24-hour period between April 3 and April 4, 1974, during which 148 tornadoes touched down in 13 different U.S. states.
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 ...