A radio atmospheric signal or sferic (sometimes also spelled "spheric") is a broadband electromagnetic impulse that occurs as a result of natural atmospheric...
19 KB (2,407 words) - 19:14, 8 December 2023
The Wow! signal was a strong narrowband radio signal detected on August 15, 1977, by Ohio State University's Big Ear radio telescope in the United States...
32 KB (3,300 words) - 05:50, 19 June 2024
onboard GNSS-Radio occultation include CHAMP (satellite), GRACE and GRACE-FO, MetOp and the recently launched COSMIC-2. Atmospheric radio occultation relies...
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An atmospheric window is a region of the electromagnetic spectrum that can pass through the atmosphere of Earth. The optical, infrared and radio windows...
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connected to a radio receiver, which processes the received signal. Radio waves are very widely used in modern technology for fixed and mobile radio communication...
34 KB (3,810 words) - 23:12, 28 June 2024
"whistlers." A type of electromagnetic signal propagating in the Earth–ionosphere waveguide, known as a radio atmospheric signal or sferic, may escape the ionosphere...
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an atmospheric duct is a horizontal layer in the lower atmosphere in which the vertical refractive index gradients are such that radio signals (and...
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the radio controlled clock. The radio controlled clock will contain an accurate time base oscillator to maintain timekeeping if the radio signal is momentarily...
48 KB (2,959 words) - 13:58, 14 June 2024
Weather Radio". National Oceanic and Atmospheric Administration (NOAA). Nelson, W.C. (2002). "American Warning Dissemination and NOAA Weather Radio". "Marine...
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In radio reception, radio noise (commonly referred to as radio static) is unwanted random radio frequency electrical signals, fluctuating voltages, always...
5 KB (588 words) - 16:12, 28 July 2023