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
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...
38 KB (4,000 words) - 04:50, 23 September 2024
onboard GNSS-Radio occultation instruments include CHAMP (satellite), GRACE and GRACE-FO, MetOp and the recently launched COSMIC-2. Atmospheric radio occultation...
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"whistlers." A type of electromagnetic signal propagating in the Earth–ionosphere waveguide, known as a radio atmospheric signal or sferic, may escape the ionosphere...
13 KB (1,514 words) - 23:08, 4 April 2023
An atmospheric window is a region of the electromagnetic spectrum that can pass through the atmosphere of Earth. The optical, infrared and radio windows...
9 KB (825 words) - 14:42, 16 May 2024
an atmospheric duct is a horizontal layer in the lower atmosphere in which the vertical refractive index gradients are such that radio signals (and...
3 KB (392 words) - 17:54, 26 August 2024
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...
33 KB (3,383 words) - 20:15, 16 September 2024
the radio controlled clock. The radio controlled clock will contain an accurate time base oscillator to maintain timekeeping if the radio signal is momentarily...
49 KB (3,045 words) - 11:14, 15 August 2024
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) - 01:48, 19 September 2024
Weather Radio". National Oceanic and Atmospheric Administration (NOAA). Nelson, W.C. (2002). "American Warning Dissemination and NOAA Weather Radio". "Marine...
71 KB (6,904 words) - 04:10, 25 July 2024