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Provides 4-digit octal unit code (set on ground for fighters, can be changed in flight by transport aircraft) [1] 3: A: Provides a 4-digit octal identification code for the aircraft, set in the cockpit but assigned by the air traffic controller. Mode 3/A is often combined with Mode C to provide altitude information as well. [2] C
The Distant Early Warning (DEW) Line, constructed in the late 1950s, was reaching obsolescence in the 1980s.With the signing of North American Air Defence Modernization agreement at the "Shamrock Summit" between Prime Minister Mulroney and President Reagan in Quebec City on 18 March 1985, the DEW Line began its eventual upgrading and transition becoming the North Warning System (NWS) of today.
4–8 GHz: 3.75–7.5 cm: Satellite transponders; a compromise (hence 'C') between X and S bands; weather; long range tracking X: 8–12 GHz: 2.5–3.75 cm: Missile guidance, marine radar, weather, medium-resolution mapping and ground surveillance; in the United States the narrow range 10.525 GHz ±25 MHz is used for airport radar; short-range ...
The Mikoyan MiG-31 combat aircraft with nose fairing removed, showing its Zaslon passive electronically scanned array radar antenna. Animation showing how a passive electronically scanned array works.
Marine radars are used by ships for collision avoidance and navigation purposes. The frequency band of radar used on most ships is X band (9 GHz/3 cm), but S band (3 GHz/10 cm) radar is also installed on most oceangoing ships to provide better detection of ships in rough sea and heavy rain condition.
Coverage of the original PAVE PAWS and BMEWS systems, later upgraded to SSPARS and eventually to UEWR BMEWS solid-state phased-array radar at RAF Fylingdales. The Solid State Phased Array Radar System [1] (SSPARS), colloquially Ballistic Missile Early Warning System radar network (BMEWS radar network), [2] is a United States Space Force radar, computer, and communications system for missile ...
DVOR (Doppler VOR) ground station, collocated with DME. On-board VOR display with CDI MCT DVOR, Manchester Airport, United Kingdom.. Very High Frequency Omnidirectional Range Station (VOR) [1] is a type of short-range VHF radio navigation system for aircraft, enabling aircraft with a VOR receiver to determine the azimuth (also radial), referenced to magnetic north, between the aircraft to/from ...
ATARS fits in the nose in place of the nose gun, with a small datalink pod mounted on the centerline station. The digital data link will transmit imagery and auxiliary data to any Common Imaging Ground/Surface Station (CIG/SS) compatible system including the Joint Services Imagery Processing System (JSIPS) or Marine Tactical Exploitation Group ...