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Quizlet is a multi-national American company that provides tools for studying and learning. [1] Quizlet was founded in October 2005 by Andrew Sutherland, who at the time was a 15-year old student, [2] and released to the public in January 2007. [3] Quizlet's primary products include digital flash cards, matching games, practice electronic ...
FM protected or primary service contour Distance to protected or primary service contour Distance to 70 dBu city-grade or principal community coverage contour Class A 6 kW 100 m (328 ft) 60 dBu (1.0mV/m) 28.3 km (17.6 mi) 16.2 km (10.1 mi) Class B1 25 kW 100 m (328 ft) 57 dBu (0.7mV/m) 44.7 km (27.8 mi) 23.2 km (14.4 mi) Class B 50 kW
Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio station, while in satellite radio the radio waves are broadcast by a satellite in Earth orbit.
Frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. The technology is used in telecommunications, radio broadcasting, signal processing, and computing. In analog frequency modulation, such as radio broadcasting, of an audio signal representing voice or music, the ...
Donahue was born Thomas Francis Coman in South Bend, Indiana, United States. [2] He was the son of Thomas F. Coman [3] and his wife, Mary Jane. [4] Both Mary Jane and Thomas worked in journalism, at the South Bend (Indiana) News-Times. [4] After Thomas Sr. was hired as a reporter by the Associated Press in Detroit, the family relocated to that ...
Rhythm changes. Rhythm changes is a common 32- bar jazz chord progression derived from George Gershwin 's "I Got Rhythm". The progression is in AABA form, with each A section based on repetitions of the ubiquitous I–vi–ii–V sequence (or variants such as iii–vi–ii–V), and the B section using a circle of fifths sequence based on III 7 ...
Coaxial cavity RF filter at 2 meter repeater. An amateur radio repeater is an electronic device that receives a weak or low-level amateur radio signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation. Many repeaters are located on hilltops or on tall buildings as the higher ...
The FM-7 ("Fujitsu Micro 7") is a home computer created by Fujitsu. [2][3] It was first released in 1982 and was sold in Japan and Spain. [4] It is a stripped-down version of Fujitsu's earlier FM-8 computer, [2] and during development it was referred to as the "FM-8 Jr.". Although it was designed to be a cut-down version of the FM-8 (with the ...