Word: radar
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Dates: during 1970-1979
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...Nyusha, the tireless, smiling cleaning woman who sweeps up the messes of others. She is avoided by an immaculate bureaucrat, who fears he would dirty his clean hands if he touched her. While others want pensions and vacations, she never stops working. "Reactors are roaring, rockets are flying and radar surrounds us," goes the song, "but Auntie Nyusha just keeps on sweeping, just keeps on dusting, just keeps on cleaning up-after high-ranking ministers, after plain workers-from morning till night...
...camera-carrying Phantoms during the daytime. At night, the mainstay of Israeli intelligence is a chain of electronic listening posts in the Sinai hills near the canal. But both these methods have glaring weaknesses: the Phantom pictures are often blurred, and the electronic sensors, which monitor Egyptian and Soviet radar and radio transmissions, frequently pick up ambiguous signals that are difficult to interpret. Furthermore, the Israeli listening devices can easily be spoofed by Egyptian and Soviet countermeasures...
...Israeli evidence showed the introduction of major electronic listening devices, some 1,100 tanks and four divisions of Egyptian soldiers. The equipment and troops, say the Israelis, were moved into the cease-fire zone with the assistance of Russian engineers and technicians, who set up the missile and radar sites...
There is an electronic counter-countermeasure for jamming. Radio frequencies emitted by the ground-base guidance radar can be changed quickly so that the radar operator can continue to track the target aircraft on his scope in spite of the "noise." Of course, sensors in the ECM pod instantly detect this switch in hostile radar frequency and warn the pilot, who can then resume jamming by a frequency shift...
...Acquisition and tracking radar locks onto a plane and plots its position; terminal guidance radar navigates the missile to the target...