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WGME-TV (channel 13) is a television station in Portland, Maine, United States, affiliated with CBS. It is owned by Sinclair Broadcast Group, which provides certain services to Waterville -licensed Fox affiliate WPFO (channel 23) under a local marketing agreement (LMA) with Cunningham Broadcasting. However, Sinclair effectively owns WPFO as the ...
Eglin AFB Site C-6 is a United States Space Force radar station which houses the AN/FPS-85 phased array radar, associated computer processing system (s), and radar control equipment designed and constructed for the U. S. Air Force by the Bendix Communications Division, Bendix Corporation. [5][6] Commencing operations in 1969, the AN/FPS-85 was ...
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 ...
Map of regions covered by the 122 Weather Forecast Offices. The National Weather Service operates 122 weather forecast offices. [1] [2] Each weather forecast office (WFO or NWSFO) has a geographic area of responsibility, also known as a county warning area, for issuing local public, marine, aviation, fire, and hydrology forecasts.
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, allowing ...
The pulse width ( ) (or pulse duration) of the transmitted signal is the time, typically in microseconds, each pulse lasts. If the pulse is not a perfect square wave, the time is typically measured between the 50% power levels of the rising and falling edges of the pulse. The pulse width must be long enough to ensure that the radar emits ...
Weatherscan was an American digital cable and satellite television network owned by Allen Media Group. [3] [4] A spinoff of The Weather Channel, Weatherscan featured uninterrupted local weather information in graphical format on a continuous loop that was generated by an IntelliStar unit installed at the cable provider's headend; unlike The Weather Channel, Weatherscan did not feature on-air ...
Terrain-following radar (TFR) is a military aerospace technology that allows a very-low-flying aircraft to automatically maintain a relatively constant altitude above ground level and therefore make detection by enemy radar more difficult. It is sometimes referred to as ground hugging or terrain hugging flight.