SCR-584

radar

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In radar: Advances during World War II
…MIT Radiation Laboratory was the SCR-584, a widely used gunfire-control system. It employed conical scan tracking—in which a single offset (squinted) radar beam is continuously rotated about the radar antenna’s central axis—and, with its four-degree beamwidth, it had sufficient angular accuracy to place antiaircraft guns on target without the need…
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