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The NTDS Technical and Operational Requirements, written in 1956, called for two radar systems: a three-dimensional search radar with a range of more than 200 miles that can turn over targets to missile and gun radars, and a two-dimensional long-range search radar able to detect relatively small targets at ranges over 250 miles, which can hand targets to the three-dimensional radar once they ...
The AN/SPS-49 is a United States Navy two-dimensional, long range air search radar built by Raytheon that can provide contact bearing and range. It is a primary air-search radar for numerous ships in the U.S. fleet and in Spain, Poland, Taiwan aboard Oliver Hazard Perry-class frigates, Canada on its Halifax-class frigate (prior to FELEX mid-life upgrade) and New Zealand on its Anzac-class ...
In search mode the SCR-584 rotated its antenna through 360 degrees and any returns were plotted on a plan position indicator (PPI). This gave the operators an indication of any targets within its ~25 mile detection range and their direction relative to the radar van.
It was one of the earliest phased array radars. AN/SPG-59 was intended to offer search, track and guidance from a single radar system and antenna as part of the Typhon combat system. Paired with the new Typhon missile, the system was to provide wide-area air defense out to about 110 nautical miles (200 km) from suitable anti-aircraft cruisers.
The AN/FPS-35 frequency diversity radar was a long range search radar used in the early 1960s. It was one of the largest air defense radars ever produced, with its antenna and supporting structure mounted on one of the largest rolling-element bearings in the world (with a ball pitch of 12 ft 7 inches in diameter.). [1]
Effective range of the system depended on the altitude of the target. Against a bomber-sized target it was about 10 miles (16 km) at 500 feet (150 m), but increased to 90 miles (140 km) at 20,000 feet (6,100 m). These ranges only applied when all of the dipoles were used in-phase, when connected for height finding the ranges were less.