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All Corona Satellite Calibration Targets - Google map of the locations of all targets, identified as Present, Damaged, or Missing. Remaining Corona Satellite Calibration Targets — Google map of 145 remaining markers which formed a grid, used from 1959 to 1972 to calibrate the Corona spy satellite cameras, by Andrei Conovaloff, 2018.
In US broadcasting, service contour (or protected contour) refers to the area in which the Federal Communications Commission (FCC) predicts coverage.. The FCC calculates FM and TV contours based on effective radiated power (ERP) in a given direction, the radial height above average terrain (HAAT) in a given direction, the FCC's propagation curves, and the station's class.
Video calibration software is software used to improve the quality of commercial video reproduction.. Organizations such as the Society for Motion Picture and Television Engineers (SMPTE), the Commission Internationale de l'Eclairage, the Advanced Television Systems Committee (ATSC), and the International Telecommunication Union (ITU) have established standards for the proper transmission and ...
List of Canadian stations available in the United States; List of United States over-the-air television networks; List of TV markets and major sports teams; List of the Caribbean television channels; Lists of television stations in North America; List of radio stations in North America by media market; U.S. broadcast television template
This page was last edited on 21 December 2024, at 16:44 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
The following is a list of stations owned or operated by Gray Media. Gray owns or operates 180 stations across 113 markets in the United States , ranging from as large as Atlanta, Georgia , to one of the smallest markets, North Platte, Nebraska .
The "primary service area" is the area served by a station's strongest signal. The "city-grade contour" is 70 dBμ (decibels relative to one microvolt per meter of signal strength) or 3.16mV/m (millivolts per meter) for FM stations in the United States, according to Federal Communications Commission (FCC) regulations.
According to the FCC, as of March 31, 2011, there are 1022 UHF commercial television stations, 360 VHF commercial television stations, 285 UHF educational television stations and 107 VHF educational television stations, plus 439 Class A UHF television stations, 76 Class A VHF television stations, 3043 UHF television translators, 1411 VHF television translators, 1656 UHF low-power television ...