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Radar mile. Radar mile or radar nautical mile is an auxiliary constant for converting a (delay) time to the corresponding scale distance on the radar display. [1] Radar timing is usually expressed in microseconds. To relate radar timing to distances traveled by radar energy, you should know that radiated energy from radar set travels at ...
The radar mile is the time it takes for a radar pulse to travel one nautical mile, reflect off a target, and return to the radar antenna. Since a nautical mile is defined as 1,852 m, then dividing this distance by the speed of light (299,792,458 m/s), and then multiplying the result by 2 yields a result of 12.36 μs in duration.
Seven Ranges. The Seven Ranges (also known as the Old Seven Ranges) was a land tract in eastern Ohio that was the first tract to be surveyed in what became the Public Land Survey System. The tract is 42 miles (68 km) across the northern edge, 91 miles (146 km) on the western edge, with the south and east sides along the Ohio River.
[1] The resolution of any radar depends on the width of the beam and the range to the target. For example; a radar with 1 degree beam width and a target at 120 km (75 mi) range will show the target as 2 km (1.2 mi) wide. To produce a 1-degree beam at the most common frequencies, an antenna 1.5 kilometres (0.93 mi) wide is required.
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This survey had six mile square townships and continued the range, township, and section numbering system of the Ohio River Survey, section numbering being based on the 1796 land act. [7] The two surveys of 1801 and 1806-07 became known as the Congress Lands North of the Old Seven Ranges.
G/ATOR. The AN/TPS-80 Ground/Air Task Oriented Radar (G/ATOR) is the United States Marine Corps next-generation Air Surveillance/ Air Defense and Air Traffic Control (ATC) Radar. The mobile active electronically scanned array radar system is being developed by Northrop Grumman and was expected to reach initial operating capability in August 2016.
Congress Lands. Coordinates: 40°21′29″N 80°36′51″W. Congress Lands in Ohio. The Congress Lands was a group of land tracts in Ohio that made land available for sale to members of the general public through land offices in various cities, and through the United States General Land Office. It consisted of three groups of surveys: [1]
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