Infobox radar name AN FPS 26 image AN FPS 26 Radar.jpg without Image ... syntax caption Avco AN FPS 26 Radar country United States introdate number type Height Finder Radar frequency frequency band PRF pulse repetition frequency beamwidth X horizontal , X vertical pulsewidth pulse width RPM revolutions per minute range km to mi X abbr yes altitude m to ft X addr yes diameter m to ft X addr yes azimuth X Y elevation X Y precision m to ft X addr yes power other names The AN FPS 26 Radar was a height finder radar used by the United States Air Force Air Defense Command . It was an early application of a concept called Frequency Diversity , which took advantage of a tunable output power device to allow the radar operator to easily and quickly change the frequency of the radar to avoid enemy jamming. Earlier generation radar transmitters typically used a magnetron as a high power output generating device the output frequency of a magnetron cannot be controlled at will. The output power of the transmitter pulse was approximately 5 Megawatts. The FPS 26A antenna was hydraulicly driven in azimuth. The hydraulic drive system operated at high pressure levels typical of aircraft hydraulic systems. Azimuth selection made by the radar tactical operator aiming the antenna toward a target of interest ... the antenna deck. Avco Corporation built this height finder radar that operated at a frequency of 5400 to 5900 MHz. This radar deployed in the 1960s. In Operation Image Radar Site at Fort Lawton WA circa 1962.jpg thumb right 400px FPS 26 under construction at Fort Lawton, Seattle, Washington This image shows several types of radar systems, operated by several agencies, co located at a single radar ... grid support structure is a search radar operated by the Federal Aviation Administration the two radars ... here circa late 1962. The radar site was located on Fort Lawton, Seattle, Washington. References ... the legacy of the United States Cold War defense radar program. Prepared for United States Air Force ... more details
, and confiscation of the Radar Detector. However, importing a unit is permitted under Australian ..., sell or use. Heavy fines apply. Radar detectors are also prohibited items under customs laws. Netherlands ... fines apply. Radar detectors are also prohibited items under customs laws. Slovenia Legal Laser jammers ...Dablink For the song by Darwin Deez , see Radar Detector Image Fuzzbuster2000.jpg right 250px thumb An early radar detector Image Car radar detector.jpg 250px thumb Car radar detector Japanese A radar ... or law enforcement using a radar gun . Most radar detectors are used so the driver can reduce the car s speed before being Speeding ticket ticketed for speeding . Only doppler radar based devices ... s radar detectors detect signals across a variety of wavelength bands usually X band X , K band ... uses doppler radar to beam a radio wave at the vehicle, and then infer the vehicle s speed by measuring the Doppler effect moderated change in the reflected wave s frequency. Radar gun s can be hand held, vehicle mounted or mounted on a fixed object, such as a traffic signal . Radar detectors use a superheterodyne receiver to detect these electromagnetic emissions from the radar gun, and raise ... in the same part of the electromagnetic spectrum as radar guns. In recent years some radar ... of a speed monitoring camera. Counter technology Radar guns and detectors have evolved alternately ... . For example, as new frequencies have been introduced, radar detectors have initially been blind ... in more sensitive receivers and more sophisticated software counter technology. Lastly, radar detectors ... of known speed trap ping locations, into a single device to improve their chances of success. Radar detector detectors Main Radar detector detector The superheterodyne receiver in radar detectors has a local oscillator that radiate s slightly, so it is possible to build a radar detector detector, which detects such emissions usually the frequency of the radar type being detected, plus about 10 ... more details
Rajendra is a passive Phased Array Radar developed by the Indian DRDO . It is a multifunction radar, capable of surveillance, tracking and engaging low radar cross section targets. It is the heart of the Akash ... battery. Current status The Rajendra Multi Function Phased Array radar system, designed at the Electronics and Radar Development Establishment Electronics and Radar Development Establishment LRDE ... after India s First president Dr. Rajendra Prasad . The LRDE is working on the Rajendra III radar for the Indian Army. ref http frontierindia.net lrde working on rajendra iii radar LRDE working on Rajendra III radar ref Rajendra III is a slewable phased array radar based on the T 72 chassis. As of 2007 ... have been established. Consistency in performance of radar in guiding missiles as close as 15m has ... system elements, including the Rajendra underwent mobility trials at Pokhran and the radar ... array passive phased array radar used for 3 D target detection, multi target tracking and multiple missile guidance under extreme hostile EW environment. It makes use of a passive phased array .... Rajendra s multi element antenna arrangement folds flat when the vehicle is in motion. The Radar ... data to remote group control centre. Rajendra features a Dual channel radar receiver and a C band ... radar uses phase shifters integrated in large numbers for electronic beam steering. This allows Rajendra radar to simultaneously track multiple aircraft and also guide multiple missiles towards these targets ... for Applied Research in Electronics CARE of IIT, Delhi, and her team. The phased array radar rotates ... of 90 degrees, if the radar array is static. During Multisensor Tracking a 2 D battery surveillance radar BSR with 360 degree coverage and a larger detection range provides track data to the multifunction, slewable, 3 D phased array radar. This is useful when a single battery of the Rajendra ... D BSR data is then integrated by the Rajendra s radar vehicle. The multisensor direction finder in Rajendra ... more details
Passive radar systems are currently under development in several commercial organizations. Of these, the systems ...Passive radar systems also referred to as passive coherent location and passive covert radar encompass a class of radar systems that detect and track objects by processing reflections from non cooperative .... It is a specific case of bistatic radar , the latter also including the exploitation of cooperative and non cooperative radar transmitters. Introduction Conventional radar systems comprise a collocated ... and back allows the range of the object to be determined. In a passive radar system, there is no dedicated ... to be determined. In addition to bistatic range, a passive radar will typically also measure ... and hence significantly improve the final track accuracy. The term passive radar is sometimes used incorrectly to describe those passive sensors that detect and track aircraft by their RF emissions such as radar ... of passive radar detection using reflected ambient radio signals emanating from a distant transmitter is not new. The first radar experiments in the United Kingdom in 1935 by Robert Watson Watt demonstrated the principle of radar by detecting a Handley Page Heyford bomber at a distance of 12 ... Wave CW radar in a fence or barrier system the Soviet Union deployed a bistatic CW system called the RUS 1 and the Japanese developed a bistatic CW radar called Type A . The Germans used a passive ... illuminators, to detect aircraft over the southern part of the North Sea. Bistatic radar ... were considered again when some interesting properties of the scattered radar energy were discovered .... ref http deepblue.lib.umich.edu bitstream 2027.42 69523 2 JAPIAU 26 3 297 1.pdf Bistatic Radar ... system, designated the AN FPS 23 fluttar radar, in the North American Distant Early Warning Line Distant Early Warning DEW Line . The fluttar radar was a CW fixed beam bistatic fence radar developed ... radar technology. For the first time, these allowed designers to apply digital signal processing techniques ... more details
Radar, Field Artillery, No 15, better known as Cymbeline , was a widely used British mortar locating radar ref cite web url http www.armedforces.co.uk army listings l0118.html work Defence Suppliers Directory title Cymbeline mortar locating radar accessdate 2009 08 16 Dead link date October 2010 bot ... Artillery. Cymbeline replaced Green Archer radar Green Archer in British service, but in a larger ... the radar was 2.29 metres high with the antenna up, 1.07 metres with antenna folded, 1.7 metres wide and 1.5 metres long. The radar itself had a nominal 100 kW peak average output and a nominal pulse repetition frequency of 4000 pulses second. The radar was connected by cable to the operator ... a narrow radar beam, about 40 Angular mil mils diameter, into one 720 mils wide and 30 mils high. This beam had five pre set operating positions determined by five different radar horns that directed ... coordinates using the expected mortar altitude that has been previously set. Setting up the radar ... the datum beam elevation between 90 and 360 mils so that it was above the radar horizon . Other ... fire. In British service each radar held a spare main electronic unit, spare generator and spare displays. The radar includes an integral simulator for operator training and practice and built in test ... the rear compartment were replaced by a circular radar mounting, with three supports for the radar turntable. The radar could be rotated up to 12 800 mils. Prototypes used hydraulic supports to level the radar but the production version used mercury in the same manner as Green Archer Mk 2 had. When the taps were opened and the radar unclamped the mercury levelled itself and the radar floated on it. There was some ... assemblies, and a simple hoist to left the assemblies up to the radar. For movement the antenna was lowered and the whole radar surrounded by a folding grille attached to decking around the radar ..., the light regiments had Cymbeline Mk 1. In British service a radar troop normally comprised a radar ... more details
coord 56.1733 N 37.7691 E display title Infobox radar name Don 2N image Pill Box ABM system radar.JPEG caption Don 2N radar in Pushkino country Soviet Union , Russia introdate 1991 ref name Ru mod 1996 ref name RTI Don Started building 1978, commissioned 1989, operational 1996 ref name RMF Don number 1 type Early warning radar , missile defence , space surveillance frequency UHF PRF pulse repetition frequency beamwidth X horizontal , X vertical pulsewidth pulse width range Around convert 1000 km mi 0 ref name Ru mod convert 1500 km mi 0 to convert 2000 km mi 0 ref name RTI Don altitude convert 0 m ft 0 diameter convert 18 m ft 0 ref name RTI Don azimuth 360 elevation X Y precision m to ft X addr yes power other names NATO reporting name NATO Pill Box br Location map Russia Moscow Oblast width ... Don 2N radar Lang rus 2 , NATO reporting name NATO Pill Box is a large missile defence and early warning radar outside Moscow , and a key part of the Russian A 135 anti ballistic missile system designed ... four faces has an convert 18 m ft 0 diameter UHF band radar giving 360 degree coverage. The system is run by an Elbrus computer Elbrus 2 Lang rus 2 supercomputer. ref name RTI Don Under the 1972 ... 2N radar is designed to be the control centre of the system and can operate autonomously if connection is lost to its command and control centre. Don prototype The prototype Don radar, called ... 46 0 11 N 73 38 58 E name Don 2NP radar display inline . References references ref name Ru mod Cite ... title 2 trans title Multifunction radar Don ... name RTI Don Cite web url http www.rti mints.ru pro.htm title trans title ABM radar accessdate ... russiamil.wordpress.com 2011 06 02 valdai club 3 touring the don 2n radar facility title Valdai Club 3 Touring the Don 2N Radar Facility accessdate 2012 02 19 publisher Russian Military Reform date 2011 06 02 ref references Commons cat Don 2N radar Soviet Radar ru 2 pl Don 2NP Category Russian ... more details
Image NSSL Doppler with rainshaft NOAA.jpg thumb right Weather radar in Norman, Oklahoma with rainshaft Image Darwin Ap WF3 Radar.jpg thumb right Weather WF44 radar dish Image OUPRIME1.png thumb right University of Oklahoma OU PRIME C band, polarimetric, weather radar during construction Weather radar , also called weather surveillance radar WSR and Doppler weather radar , is a type of radar used to locate ... , snow , hail , etc. . Modern weather radars are mostly pulse Doppler radar s, capable of detecting ... Radar in World War II World War II, radar operators discovered that weather was causing echoes on their screen ... began to study the phenomenon. Soon after the war, military surplus surplus radar were used to detect precipitations. Since then, weather radar has evolved on its own and is now used by national ... are routinely used and specialized software can take radar data to make short term Weather forecasting ... and forecasts. History File David Atlas Weather radar pionneer.jpg thumb upright David Atlas During World War II , military radar operators noticed noise in returned echoes due to weather elements .... In the United States, David Atlas , ref David Atlas , Radar in Meteorology , published by American ... relation, which correlates a given radar reflectivity with the rate at which water is falling on the ground. In the United Kingdom , research continued to study the radar echo patterns and weather elements ... radar technology detected tornado producing supercell s over the Minneapolis Saint Paul Twin Cities ... Survey, made the first recorded radar observation of a hook echo associated with a tornadic thunderstorm. ref cite web year 2008 title The First Tornadic Hook Echo Weather Radar Observations work ... Weather Radar Observations accessdate 2008 01 30 ref Between 1950 and 1980, reflectivity radars ... and organized into networks. The first devices to capture radar images were developed ... radar from NSSL documented the entire life cycle of the tornado. ref name NSSL cite web date ... more details
Infobox Radar name P 14 Radar image caption country flagcountry Soviet Union introdate 1959 number 2000 type Early Warning frequency VHF PRF pulsewidth RPM 2 6 rpm range 400 km altitude 30 km 65 km high beam diameter 33 meters azimuth 360 degrees elevation 12 17 degrees precision 1.2 km range, 1.2 degrees azimuth power 900 kW other names Tall King The P 14 also referred to by the NATO reporting name Tall King in the west is a 2D VHF radar developed and operated by the former Soviet Union . Development The design of the P 14 2D early warning radar started in 1955 by decree of the CPSU Central Committee ref name BKO . The P 14 being the first high power VHF radar to be developed by the Soviet Union, the radar was accepted into service in 1959 following the successful completion of the radars ... under the direction of V.I. Ovsyannikov by the SKB Design Bureau, a division of State Plant No.197 ... for the development of the P 14 radar ref name NNIIRT . The P 14 was exported and is occasionally ... processing display and solid state components ref cite web url http www.janes.com articles Janes Radar and Electronic Warfare Systems P 14 early warning radar Russian Federation.html title P 14 early warning radar Russian Federation , LAND BASED AIR DEFENCE RADARS accessdate 2008 12 29 date 2004 08 22 publisher Jane s Radar and Electronic Warfare Systems ref . The P 14 was superseded by the 55G6 Nebo VHF surveillance radar in 1982. Description The P 14 was produced in three variants the 1RL113 ... in two building radar and generator with the control cabin operated by a crew of five situated ... taking over 24 hours to assemble, the radar s control trailer had a crew of six and could be located up to one kilometer from the radar ref name PVO . A secondary radar for Identification friend ... Union from 1959 and has long since become obsolete being replaced in service by the 55G6 Nebo VHF radar ... http www.nniirt.ru NNIIRT References reflist DEFAULTSORT P 14 Radar Category Russian and Soviet military ... more details
with some radar concepts as early at the late 1920s, under the direction of Colonel William ...Image SCR268 radar guadalcanal 19420807.jpg thumb 300px right SCR 268 radar deployed on Guadalcanal in August 1942. The SCR 268 for Signal Corps Radio no. 268 was the US Army s first radar system. It was developed ... Army sit in place at a radar used by the 90th Coast Artillery in Casablanca, French NARA 531325.tif thumb right Three soldiers of the United States Army sit in place at a radar used by the 90th Coast ... Navy s CXAM radar project. The navy s system traced its development from experiments conducted by Albert ... it 10 miles off course. The radar fed pointing data to a team operating a searchlight , and when ... was slowed to some degree when a long range early warning radar became a higher priority and parts of the prototype were salvaged for the SCR 270 radar SCR 270 they were building. Nevertheless the system entered production at Western Electric about the same time as the 270 in 1939. The radar entered ... which created a circular beam about 10 degrees wide. The three radar operators sat at consoles mounted ... with a searchlight the gun s existing optical equipment could fine tune the radar s guidance. The radar ... was, in theory, more than enough to offer longer range. The radar was mobile, requiring four Prime mover tractor unit prime movers for support. Two towed the radar base and the antennas themselves ... than any quality of the radar itself. The SCR 268 was not a particularly advanced design by the standards ... while the SCR 268 was being introduced, the Germans were upgrading the W rzburg radar , first to use ... antenna. The only way to fix this problem was to move to a microwave radar of their own, an effort ... radar system on a single trailer, added conical scanning, and was generally much more accurate ... of the war. The SCR 268 was one of the first radar sets to use lobe switching of its receiving antennas ... surviving examples of this array. See also List of U.S. Signal Corps Vehicles SCR 270 radar Signal ... more details
Infobox radar name Jagdschloss image Jagdschlo FuMG404.jpg caption Jagdschloss captured in 1945 while still under construction country Germany introdate 1943 number type Early warning radar frequency 129 165 MHz PRF 500 per second beamwidth X horizontal , X vertical pulsewidth 1 s RPM revolutions per minute range convert 80 km altitude m to ft X addr yes diameter m to ft X addr yes azimuth 360 elevation ... German early warning radar early warning and battle control radar developed just prior to the start ... as the first radar system to feature a plan position indicator display, or PPI . In Germany ... of radar Hans Hollmann filed a patent for the basic concept in 1936. At that time development of GEMA s other radars, notably the Freya radar Freya , took priority, and work on the system did not start until 1939. By this time, radar development had progressed to the point were a prototype could ... of Berlin , known as the Tremmen Radar Tower . It mounted a large antenna consisting of two rows ... frequency of the radar. The radio equipment was taken from the Wassermann radar Wassermann .... This problem was initially solved with the addition of a large wire mesh under the tower, known as Reflektor ... from their W rzburg radar . Range was also increased from the original convert 150 300 km mi nmi abbr ... up from the center sections of the W rzburg radar s parabolic dish , stacked vertically to form a single ... delayed, appearing as a second blip on the radar screen, allowing the operator to visually identify ... , is also mentioned in reference to Erstling. This was a reduced version of Jagdschloss without radar ... Development of the first PPI Radar Funkmess Uebersichstverfahren , Dr. Ing. Theodore Schultes, translated into English by Martin Hollmann Swords, Sean S., Technical History of the Beginnings of Radar ... Jagdschloss Radar Category World War II German electronics Category World War II radars de Jagdschloss Radar fr Radar Jagdschloss ... more details
Monostatic radar is the term given to a radar in which the transmitter and receiver are collocated. ref Name Chernyak cite book title Fundamentals of multisite radar systems multistatic radars and multiradar systems last Chernyak first Victor S. authorlink Victor S. Chernyak coauthors year 1998 publisher CRC Press isbn 9056991655 page pages url http books.google.com books?id 0bEU2oBzMJEC&pg PA149&dq 22Monostatic radar 22&hl en&ei 3BMdTYOMMYGC8gbHjaXmAQ&sa X&oi book result&ct result&resnum 4&ved 0CDIQ6AEwAw v onepage&q 22Monostatic 20radar 22&f false ref This is the conventional configuration for a radar, but the term is used to distinguish it from a bistatic radar or multistatic radar . References reflist DEFAULTSORT Monostatic Radar Category Radar fi Tutka Monostaattinen tutka ... more details
artists patrolled by radar current members Jay Souza small lead vocals, guitar ... name twsS12 past members Patrolled by Radar , formerly 50 Cent Haircut , ref name twsS22 cite news ... cite news title Special Event Foxhole Radio vs. Patrolled By Radar newspaper Culver City Patch quote Special Event Foxhole Radio vs. Patrolled By Radar date April 30, 2011 url http culvercity.patch.com events special event foxhole radio vs patrolled by radar accessdate 2011 05 19 ref A review in ReverbNation.com ... Patrolled By Radar newspaper Reverb Nation date 2011 05 19 url http www.reverbnation.com patrolledbyradar ... Records . ref name twsS15 cite web title Patrolled by Radar, L.A. s Americana pub rockers, sign to Knitting ... profiles blogs patrolled by radar las accessdate 2011 05 19 ref ref name twsS16 cite web title ... its name from 50 Cent Haircut to Patrolled by Radar to avoid confusion with Rapper 50 Cent . ref name twsS11 cite news author Josh Baker title Patrolled By Radar Be Happy newspaper The Grateful Web date 2 May 2011 url http www.gratefulweb.com reviews albums patrolled by radar be happy.html accessdate ..., ref name twsS19 cite news title Holly Golightly and the Brokeoffs Patrolled by Radar newspaper ... music nightlife music 1277191 holly golightly and the brokeoffs patrolled by radar accessdate 2011 ... name twsS14 cite news title Colin Hay with Patrolled by Radar newspaper Missoula Independent quote when Colin Hay formerly of the group Men at Work plays the Wilma Theatre with Patrolled by Radar date August 2, 2010 url http missoulanews.bigskypress.com missoula colin hay with patrolled by radar ... ref name twsS23 cite news title PATROLLED BY RADAR READIES BE HAPPY ON KNITTING FACTORY RECORDS, OUT ON JUNE 7 newspaper Music Industry News Network quote LOS ANGELES, CA Patrolled by Radar s Be Happy ... , 2009, released under the name 50 Cent Haircut ref name twsS24 cite news title 50 Cent Haircut ... artists patrolled by radar Knitting Factory Records website Category Alternative rock groups from ... more details
1944. Building of the radar The Signal Corps United States Army Signal Corps had been experimenting with some radar concepts as early at the late 1920s, under the direction of Colonel William R. Blair ... operational early warning radar s. It was the U.S. Army s primary long distance radar throughout World War II and was deployed around the world. It is also known as the Pearl Harbor Radar , since ... but used an antenna with somewhat greater resolution. An upgraded version, the SCR 289 radar ... primarily on infra red detection systems a popular idea at the time , in 1935 work turned to radar ... to investigate the US Navy s CXAM radar project. William D. Hershberger went to see what they had ... team was organized under the direction of civilian engineer Paul E. Watson . By December 1936 Watson ... by mistake the Martin B 10 bomber had originally been instructed to fly to a known point for the radar to find it, but could not be located at the agreed upon time. The radar operators then searched ... into an example of real world radar location and tracking. Development of this system continued as the SCR 268 radar SCR 268 , which eventually evolved into an excellent short to medium range gun .... Shortly thereafter the Signal Corps became alarmed that their radar work was being observed by German ... 1938 to provide production versions under the Westinghouse designation WL 530 and the Signal Corps type ... from the operations van, the angle being read by reading numbers painted on the antenna mount. The radar ... USN ref RadarRadar 3.html U.S. Radar Operational Characteristics of Available Equipment Classified ... Island on the Pacific end of the Canal by December 1940, thus giving radar coverage to the vitally ... system, in particular emphasizing the need for thorough radar site coverage along the coasts. https ... Oahu with one unit in reserve. They were placed on the central north shore Haleiwa , Opana Radar Site ... some distance away. By explicit order by General Short, the radar stations were to only be operated ... more details
under virtually all weather conditions. The radar has a maximum display range of 10,000 meters and the radar ... the E 8 capability into space, under a variety of names, most recently a simple Space Radar . In an era ...MASINT Radar MASINT is one of the subdisciplines of Measurement and Signature Intelligence MASINT and refers ... optical, Nuclear, Geophysical, Radar, Materials, and Radiofrequency disciplines. ref cite web last ... http web.archive.org web 20070707093007 http www.afit.edu cmsr archivedate 2007 07 07 ref Radar MASINT is complementary to SIGINT. While the ELINT subdiscipline of SIGINT analyzes the structure of radar directed on a target, radar MASINT is concerned with using specialized radar techniques that measure ... radiation emitted from a radar transmitter e.g., sidelobe s MASINT radar sensors may be on space, sea, air, and fixed or mobile platforms. Specialized MASINT radar techniques include line ..., bistatic, or over the horizon radar systems. RADINT collection provides information on radar cross sections, tracking, precise spatial measurements of components, motion and radar reflectance, and absorption characteristics for dynamic targets and objectives. Radar MASINT can be active, with the MASINT ... html&identifier ADA400786 accessdate 2007 10 03 ref Still, radar has characteristics especially appropriate for MASINT. While there are radars ISAR that can produce images, radar pictures are generally not as sharp as those taken by optical sensors, but radar is largely independent of day or night, cloud or sun. Radar can penantrate many materials, such as wooden buildings. Improving the resolution of an imaging radar requires that the antenna size is many times that of the radar wavelength. Wavelength is inversely proportional to frequency, so increasing the radar frequency can ... optical sensors, in UV, visual, or infrared spectra, will outperform imaging radar. ref name LynxMTI cite web author Sandia National Laboratories title MTI & CCD Synthetic Aperture Radar Imagery ... more details
from top to lower right. H2S was the first airborne, ground scanning radar system. It was developed ... known as TR3159 H2S Mk I ASV VIB or TR3191 H2S Mk II . On January 30, 1943, H2S radar was used by RAF bombers for navigation for the first time and so became the first ground mapping radar to be used ... centimeter radar, actually 9.1 cm was possible thanks to the development of the cavity magnetron ... that had been destroyed. Eventually this led to the development of the Naxos radar detector , which ... later adapted the X Band version of H2S H2S Mk III as the H2X radar which they regarded as a significant ... Interception experiments before the war that the radar returns from fields, cities and other areas were different. He had suggested development of targeting radar but the matter had been forgotten ... S band operation. During tests of the AIS, Dee s team rediscovered that radar reflections could reveal ... in which he used an AIS radar mounted on a Blenheim to scan the ground. He was able to pick ... TRE set up a team under Bernard Lovell who later went on to become a leading figure in radio astronomy to develop an S band airborne targeting radar based on AIS. The new targeting radar was designed ... of the land below the bomber. The targeting radar was originally designated BN Blind Navigation but quickly ... with its rotten smell , because the inventor realised that had he simply pointed the radar downward instead of towards the sky, he would have a new use for radar, ground tracking instead of for identifying ... April 1942, with the radar mounted in a Handley Page Halifax Halifax bomber, the scanning unit installed in the aircraft s belly using the position previously occupied by the mid under turret, which ..., the radar effectively had to have low sensitivity or gain for targets directly underneath the bomber ..., just as the British had raided the French coast to seize a German W rzburg radar in Operation Biting ..., killing several radar engineers Then disaster occurred on 7 June 1942, the Halifax performing H2S ... more details
SJ radar was the name of a type of S band 10 cm radar set used on United States submarine s during the Second World War . ref name RADAR cite journal author Macintyre, Donald, CAPT RN title Shipborne Radar publisher United States Naval Institute Proceedings month September year 1967 ref The widespread use of the SJ radar, combined with the very low use of radar in the Imperial Japanese Navy gave great operational flexibility to the U.S. Navy s submarine campaign in the Pacific Ocean . ref http www.valoratsea.com subwar.htm Battle Beneath the Waves WWII U.S. Submarines at War in the Pacific ref The first prototype SJ was deployed in December 1941, ref name Microwave Radar at War http www.vectorsite.net ttwiz4.html Microwave Radar at War ref but it was mid 1942 before they became common equipment. SJ radar was on all submarines by early 1943. ref name RADAR The SJ was the second type of radar deployed on submarines during the war, representing a substantial improvement over the previous SD radar . The SJ was a variant of the SG radar SG surface search radar used on surface warships, contained in sets capable of fitting through submarine hatches for installation and designed to lie close to the curved hulls. The SJ provided directional information, provided highly accurate distance information, and provided information about surface contacts as well as low flying aircraft . ref http www.hnsa.org doc radar part4.htm United State Navy Radar Operator s Manual April 1945 ref The SJ radar was even used as a communications device. When used with a telegraph key, the SJ radar could send signals on a point to point basis between two submarines operating in a Wolfpack naval tactic wolf pack . ref name Microwave Radar at War The directionality of the antenna and the short range provided relatively high security for this transmission. References reflist Category Sea radars Category World War II American electronics Category World War II radars Navy stub ... more details
Infobox single See Wikipedia WikiProject Singles Name Radar Cover Britney Spears Radar.jpg Alternate ... an actual radar. On the upper side of the image, the words Britney Spears are written in white letters. Underneath, radar is written in big yellow small letters. Artist Britney Spears Album Circus ... singles Last single If U Seek Amy br 2009 This single Radar br 2009 Next single Unusual You br 2009 Radar is a song by American recording artist Britney Spears . It was written and produced by Bloodshy ... Kevin Federline , and members of The Clutch claimed to be surprised by her work ethic. Radar was originally .... Radar was later included as a bonus track on her sixth studio album Circus Britney Spears album Circus , and was released in June 2009 as the fourth single from that album. Musically, Radar ... the protagonist and a man, while she wonders if he knows what she is feeling. Radar received mixed ... produced and also criticized her vocals for being processed. In July 2008, Radar charted in the top ... critics, who complimented the fashion but called the idea unoriginal. Radar was performed by Spears .... ref In November 2006, Spears recorded Radar with Ezekiel Lewis and Patrick M. Smith of The Clutch ... Flyckt at Mandarine Studios in Stockholm, Sweden. ref name linernotes Radar was originally planned to be released ... Britney Spears song Break the Ice was released instead and Radar was chosen as the fourth single ... s title Britney Spears Radar accessdate 2011 01 24 publisher charts.org.nz. Hung Medien ref ... Radar&cat s title Britney Spears Radar accessdate 2011 01 24 publisher swedishcharts.com. Hung Medien ... album, Circus Britney Spears album Circus . ref name radards cite web title Britney Spears Radar ... was announced as the fourth single from Circus . ref name bs cite web title Breaking News Radar ... url http www.britneyspears.com 2009 05 breaking news radar is britneys 4th single.php archiveurl http web.archive.org web 20090511074332 http www.britneyspears.com 2009 05 breaking news radar is britneys ... more details
Infobox radar name Wasserman image Wassermann Cylinder Chimney radar illustration.png caption Drawing of the so called Cylinder Chimney version of the Wasserman height finding radar country Germany introdate 1942? number type Long range height finding radar frequency 120 150 MHz PRF beamwidth X horizontal , X vertical pulsewidth 2 3 s RPM revolutions per minute range convert 300 km altitude m to ft X addr yes diameter m to ft X addr yes azimuth 360 elevation X Y precision convert 1000 ft power 100 kW other names The Wasserman radar was a long range, height finding radar built by Germany during World War II . References cite book last Swords first Sean S. title Technical History of the Beginnings of Radar publisher IEE Peter Peregrinus location London date 1986 isbn 0 86341 043 X German radars of World War II DEFAULTSORT Wassermann Radar Category World War II German electronics Category World War II radars Category Radar networks da Wasserman radar de Wassermann Radar fr Radar Wassermann ... more details
Infobox Radio station name Radar Radio image File Radar Radio.jpeg 260px center city Sydney , Melbourne , Brisbane , Adelaide and Perth, Western Australia Perth area Australia and Online branding Radar Radio slogan Get On It airdate 4 May 2009 frequency DAB format New Music owner Austereo Radio Network website http www.radarradio.com.au Radar Radio Website Radar Radio also referred to as Radar Music , colloquially called Radar is an Australian Digital radio in Australia Digital Radio station. It is run by Austereo Radio Network Austereo and was launched on 11 December 2008. ref http www.itwire.com blogs fuzzy logic the gadet blog 22267 first digital radio station finally on the radar First digital radio station finally on the radar iTWire, 12 December 2008 ref History Radar started broadcasting online before Digital radio in Australia Digital Radio launched in Australia on 11 December 2008. The station only played unsigned bands and there were no announcers on air. ref http www.accessallareas.net.au music news EkkApuElFAVLubJLOk.php Austereo launches Radar Radio showcasing unsigned artists ... Perth . ref http www.digital media.net.au article austereo launches digital radar radio 433595.aspx Austereo launches digital Radar Radio Digital Media, 12 December 2008 ref In late 2009, the station ... Radar Radio Website Radar Radio ref . The station also streams online at the http www.radarradio.com.au Radar Radio website and on the Radar Radio http itunes.apple.com au app radar radio for ipad id382367152?mt 8 iPad app ref http www.radarradio.com.au blog 2010 08 10 oooh its the new radar radio ipad app Oooh It s The New Radar Radio iPad App Radar Radio ref . External links http www.radarradio.com.au Radar Radio Website http www.triplem.com.au sydney shows radar radio Triple M Radar Radio Show Website http www.radioinfo.com.au news 8549 New music on Jaime Chaux radar http www.radioinfo.com.au ... Radar Radio Category Digital radio in Australia Category Digital only radio stations Category ... more details
Orphan date February 2009 Due to size and cost limitations, Trainer Planes are not able to accommodate a traditional radar system. Virtual Training capability consists of implementation of a virtual radar capability as well as a ground based mission management and debriefing capability. This provides an affordable solution to radar training to flight students and support future pilot training. The airborne component of the Virtual Radar provides radar capability for both Air To Air A A and Air To Ground A G radar modes without the use of radar system. The system provides data via airborne bus such as Ethernet or MIL STD 1553B, to the Mission Display Processor MDP that simulates unclassified radar data. The system may also provide RS 170 video synthesizing A G radar maps Real Beam Maps Synthetic Aperture Radar SAR maps etc . The basis of the virtual radar system is a closed loop data network. All participants in the Network can share their GPS positioning data and supplemental Air Data Computer ADC data to calculate targeting information like a radar system. All participants in the network must have a virtual radar system to either receive target data or generate target information to other participants. The Ground based portion of the Virtual Training must support training mission management when it is an active participant in the data network as well as provide post training mission debriefing capabilities with video and data review from data recorded on a Digital Video Recorder DVR . The data network must support all virtual radar requirements with or without the participation of a Virtual Training Ground system. External links http www.radar toulouse.fr WWW.RADAR TOULOUSE.FR Real Time Aircraft Traffic LFBO. http www.bes.co.il virtual radar.htm S Band Datalink network for Virtual Radars http www.radarspotters.eu RADARSPOTTERS.EU Forum for Virtual Radar Questions & Answers Category Radar ... more details
refimprove date December 2010 Bistatic radar is the name given to a radar system which comprises a transmitter .... Conversely, a radar in which the transmitter and receiver are collocated is called a monostatic radar . Many long range Air to air missile air to air and surface to air missile systems use semi active radar homing which is a form of bistatic radar. ref Cherniakov, Mikhail ed . 2007 . Bistatic Radar Principles and Practice. Wiley. ISBN 0470026308 ref ref Willis, Nicholas. 2007 . Bistatic Radar. SciTech Publishing. 2nd ed. ISBN 1891121456 ref ref citebook title Advances in bistatic radar ... ISBN 1891121480 ref Specific classes of bistatic radar Pseudo monostatic radars Some radar systems ... or pseudo monostatic . For example, some very long range HF radar systems may have a transmitter ... radar, known as a forward scatter radar , after the mechanism by which the transmitted energy is scattered ... and is a potential countermeasure to stealth aircraft as the radar cross section RCS is determined ... is the radar wavelength. However, target may vary from place to place location and tracking is very ... Multistatic radar A multistatic radar system is one in which there are at least three components for example ... and multiple transmitters. It is a generalisation of the bistatic radar system, with one or more receivers processing returns from one or more geographically separated transmitters. Passive radar A bistatic or multistatic radar that exploits non radar transmitters of opportunity is termed a passive radar or passive coherent location system or passive covert radar . Advantages and disadvantages The principal advantages of bistatic and multistatic radar include Lower procurement and maintenance ... as waveform being used and receiver location are potentially unknown Possible enhanced radar ... of bistatic and multistatic radar include System complexity Costs of providing communication between ... radar Category Radar Category Passive radars sensor stub es Radar biest tico fr Radar bistatique ja ... more details
Clutter is a term used for unwanted echoes in electronic systems, particularly in reference to radar s. Such echoes are typically returned from ground, sea, rain, animals insects, Chaff radar countermeasure chaff and atmospheric turbulence s, and can cause serious performance issues with radar systems. Backscatter coefficient What is considered to be clutter by one user may be a target for another. Usually targets may be considered to be a point scatterer and clutter as extended, covering many range, angle and Doppler cells. The clutter may fill a volume rain or be confined to a surface land . In principle all that is required to estimate the return backscatter is a knowledge of the volume or surface illuminated and the echo per unit volume, , or per unit surface area, , the backscatter coefficient . Clutter or Noise limited radar In addition to any possible clutter there will also always ... case the radar is said to be Noise Limited, in the second it is Clutter Limited. Volume Clutter Rain ... as for the normal RadarRadar equation radar equation but the radar cross section is replaced by the product ... math R math distance from the radar to the target A correction must be made to allow for the fact ... pi 2R 2 c tau eta math Watts If the Clutter Return Power is greater than the System Noise Power then the Radar ... Signal to Noise Ratio for the target to be detectable. From the RadarRadar equation radar equation ... 4 pi 3R 2c tau eta math The implication is that when the radar is noise limited the variation of signal ... ratio to increase improve by a factor of 16. When the radar is volume clutter limited, however, the variation ... by the radar is then given by math A 2R c tau 2 tan theta 2 sec psi math For small beamwidths this approximates ... in one location under one set of conditions being used for a different location under different conditions ... need to be used with caution. See also Clutter folding Category Atmosphere Category Radar Category Radio frequency propagation it Clutter sv Klotter radar de Clutter Radar ... more details
3D radar provides for radar coverage on three dimensions unlike the more common 2D radar . While the normal 2D radar provides range and azimuth, the 3D radar provides elevation information with range and azimuth. Applications include weather forecasting , defense and surveillance. 3D radar techniques Steered beam radars steer a narrow beam through a scan pattern to build a 3 D picture. Examples include NEXRAD doppler weather radar which uses a parabolic dish and the AN SPY 1 phased array radar employed by the Ticonderoga class cruiser Ticonderoga class of guided missile cruisers and other ships so equipped with the Aegis Combat System . br Stacked beam radars emit and or receive multiple beams of radio waves at two or more elevation angles. By comparing the relative strengths of the returns from each beam, the elevation of the target can be deduced. An example of a stacked beam radar is the ARSR 4. Image 2d radarp.jpg br Figure 1 Diagram of a typical 2D radar rotating cosecant squared antenna pattern File 3d radarp.jpg br Figure 2 Diagram of a typical 3D radar, a judicial mix of vertical electronic beam steering and mechanically horizontal movement of a pencil beam External links webarchive url http www.cea.com.au products phasedarray ceafar.html title CEA FAR 3D Radar webarchive url http www.rrs.co.za products 3d surveillance.htm title ESR 360L 3D Surveillance Radar Category Radar de 3D Radar es Radar 3D ja 3 ... more details
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