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The AR-320 is a 3D early warning radar developed by the UK's Plessey in partnership with US-based ITT-Gilfillan.The system combined the receiver electronics, computer systems and displays of the earlier Plessey AR-3D with a Gilfillan-developed transmitter and planar array antenna from their S320 series.
Typical systems for point level detection in liquids include magnetic and mechanical floats, pressure sensors, electroconductive sensing or electrostatic (capacitance or inductance) detectors—and by measurement of a signal's time-of-flight to the fluid surface, through electromagnetic (such as magnetostrictive), ultrasonic, radar or optical ...
The Tachi-3 transmitter operated at 3.75 m (80 MHz), and produced about 50-kW peak power, with 1- to 2-ms pulse width and 1- or 2-kHz PRF. The transmitter was designed for enclosure in an underground shelter. It used a Yagi antenna that was rigidly mounted above the shelter and the entire unit could be rotated in azimuth.
A combination of the Berlin transmitter/receiver with the Ansback 4.5 meter reflector and systems. Controlled by the "Michael" remote control system. Sources suggest that three systems were completed. FuMG 74: Kulmbach. A 9 cm panoramic search radar, 6 meter antenna and remote controlled like the FuMG76.
The level of GEC's involvement in the Plessey defence businesses was not likely to meet with regulatory approval and in February 1989, GEC Siemens announced a new organisation. In an effort to head off the bid, Plessey announced in May 1989 the closure of its compound semiconductor business in Towcester, Plessey 3-5. The takeover was completed ...
Radar warning receiver (RWR) systems detect the radio emissions of radar systems. Their primary purpose is to issue a warning when a radar signal that might be a threat is detected, like a fighter aircraft's fire control radar. The warning can then be used, manually or automatically, to evade the detected threat.