* Over-the-horizon radar

* Over-the-horizon radar

Over-the-horizon radar, or OTH ( sometimes also beyond the horizon, or BTH ), is a design concept for radar systems to allow them to detect targets at very long ranges, typically up to thousands of kilometres.

# redirect Over-the-horizon radar

# REDIRECT Over-the-horizon radar

# REDIRECT Over-the-horizon radar

# REDIRECT Over-the-horizon radar

* Range: Over-the-horizon, in excess of 135 nmi / 250 km.

Over-the-horizon attacks were all but impossible, as the Kh-22's seeker head could not find the target.

From Venus orbit insertion to July 1980, periapsis was held between 142 and 253 km ( at 17 degrees north latitude ) to facilitate radar and ionospheric measurements.

From the early 1930s eight countries developed radar, these developments were sufficiently advanced by the late 1930s for development work on sound locating acoustic devices to be generally halted, although equipment was retained.

From the homepage, it is possible to enter a city and state to get a local forecast page, view a rapidly updated map of active watch and warnings, and select areas related to graphical forecasts, national maps, radar displays, rivers, air quality, satellite images and climate.

From that difference, the radar speed gun can calculate the speed of the object from which the waves have been bounced.

From 1958 to 1965, he also served as the senior weatherman at both 6: 00 p. m. and 10: 00 p. m. on the CBS affiliate, and was the first forecaster in Arkansas to introduce radar to the a statewide television audience.

From 4 February to 30 November 1952, outfitted with British Second World War-era Air Ministry Experimental System ( AMES ) 11C radar equipment, 6 AC & WU monitored the skies of Northern Ontario in the area of the RCAF station.

From 1938 and during World War II, the British scientists developing radar frequented an eatery called Boffin's.

From April 1995 to July 1996, he was attached as senior test pilot to the European Participating Air Forces at Edwards Air Force Base in California where he worked on the mid-life update of the F16 aircraft, focusing on radar testing.

From August 19 to 22 of 1989, Ostro and Scott Hudson observed the contact binary 4769 Castalia from the Arecibo Observatory, producing the first resolved radar images of an asteroid, which they later used to construct a model of the object.

From the early 1980s Pebble Mill had several scanners ( a BBC Term for an OB vehicle possibly dating back to World War II when it was an RAF term for mobile radar vehicles which the GPO and BBC used after the war )

From 1943 to 1949, Babakin worked on radar targeting systems at the Institute of Automation ( VSNITO ), where he became its chief engineen.

From the early days of radar ( Linesman and Mediator ), through the Cold War years of the Type 84 and Type 85 radars, until the present day, the squadron has been entrusted with bearing the torch for Boulmer and, in ensuring the sustainability of the units many assets finds itself at the very forefront of leading edge technology, which provides collectively the engineering backbone of the modern United Kingdom Air Surveillance and Control Systems.

From 1942 to 1943 the squadron flew the Armstrong Whitworth Whitley, then in 1943 the Chivenor squadron converted the Vickers Wellington equipped with the ASV radar and Leigh lights.

From then on, Brinkley was on the AMA's radar, including catching the eye of the doctor that would eventually be responsible for his downfall, Morris Fishbein, who made his career exposing medical frauds.

From 1936 to 1942 he worked for the Air Ministry, where he helped to develop radar.

From 1943 to 1948, as part of Dumbo missions, 12 B-17G's were converted to B-17H's equipped with an airborne lifeboat and ASV radar for USAAF air-sea rescue duties.

From there, the company designed and manufactured products for the marine electronics market, including communications receivers, Navtex receivers, radar detectors, transponders and emergency position indicating radio beacons ( EPIRBs ).

From the 1960s to the late 1980s it was home to families of Royal Canadian Air Force and later Canadian Forces personnel stationed at CFS Barrington, a Pinetree Line early warning radar station located 27 km away at Baccaro.

From the time radar was first introduced to the present day the radar picture has been presented on the screen of a cathode ray tube.

From this location the radar would be able to see almost all of Eastern Europe as well as the western parts of the Soviet Union.

From 1942 to 1946, Goldstein was a staff member of the wartime Radiation Laboratory at M. I. T., where he engaged in research on the theory of waveguides and magnetrons and on the characteristics of radar echoes.

From August 1944 to April 1945 the 482d BG conducted 202 radar scope and ' pickling ' sorties over hostile territory without loss, dropping 45 tons of bombs in Nazi controlled territory.

On the morning of September 19, 1976, a bright object was sighted and recorded by radar over Tehran, Imperial State of Iran.

The Air Force ceased using the Lackland AFB radar site on 30 September 1976.

This radar was built in 1976 and brought on-line in 1977 for the primary mission of intelligence gathering in support of verification of the Strategic Arms Limitation Talks ( SALT ) II agreement.

Once completed in October 1976 the Stage A radar ran for two years, closing in December 1978.

In 1976, Westinghouse Electronic Systems delivered the first E-3 Sentry AWACS long-range airborne surveillance radar.

Aerospace Defense Command ( ADC ) operated the radar until 25 April 1976 when it was replaced by a detachment of the 20th Air Defense Squadron ( OLA-A ).

The asteroid 4769 Castalia ( ; previously known by the provisional designation 1989 PB ) was the first asteroid to be modeled by radar imaging.

Beginning in 1983, the United States demanded its removal, until the Soviet Union admitted the radar station was a violation in 1989.

This solid-rocket was used in May 1989 to propel the spacacraft from Orbiter Atlantis on a 15-month loop around the Sun and eventually into orbit around Venus for four years of radar surface-mapping.

In 1989, Hanssen handed over extensive information about American planning for Measurement and Signature Intelligence ( MASINT ), an umbrella term for intelligence collected by a wide array of electronic means, such as radar, underwater hydrophones for naval intelligence, spy satellites, and signal intercepts.

In 1989, Huntsville International became the first airport in the United States to install an ASR-9 dual-channel airport surveillance radar system.

NOAA has interesting pictures of the Charleston, SC WSR-57 radar image of Hurricane Hugo in 1989.

A Type 93 mobile radar was also located on the airfield from 1989 until the station closed.

The Irish Republican Army fired five mortar bombs at the radar site on 11 September 1989.

As early as 1989, it was reported that an important function of TDRSS was to provide data relay for the Lacrosse radar imaging reconnaissance satellites operated by the National Reconnaissance Office.

Space radar image of UnzenAfter 1792, the volcano remained dormant until an earthquake swarm began about underneath and west of Fugendake in November 1989.

Between 1989 and 1992, Raytheon, the US defence contractor, completed a contract that saw the domes replaced by the current tetrahedron (' pyramid ') structure, housing the Active Electronically Scanned Arrays or AESA ( phased array ) radar.

Unlike the majority of the DEW Line radar sites which were abandoned or automated, this site which changed in 1989, known as CAM-MAIN, remains a manned operation, with about 18 people, as part of the North Warning System.