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Hedy Lamarr (/ ˈ h ɛ d i /; born Hedwig Eva Maria Kiesler; November 9, 1914 [a] – January 19, 2000) was an Austrian-born American actress and inventor. After a brief early film career in Czechoslovakia, including the controversial erotic romantic drama Ecstasy (1933), she fled from her first husband, Friedrich Mandl, and secretly moved to Paris.
Most of today's radar detectors detect signals across a variety of wavelength bands: usually X, K, and K a. In Europe the K u band is common as well. The past success of radar detectors was based on the fact that radio-wave beams can not be narrow-enough, so the detector usually senses stray and scattered radiation, giving the driver time to ...
Dodge David Morgan (January 15, 1932 – September 14, 2010) was an American sailor, businessman, publisher and "self-proclaimed contrarian." [1] He flew fighter jets in the U.S. Air Force in the early 1950s, worked as a newspaper reporter in Alaska, and became a millionaire by operating Controlonics, a company that manufactured Whistler radar detectors from 1971 to 1983.
Joan, Lady Curran (born Joan Elizabeth Strothers; 26 February 1916 – 10 February 1999) was a Welsh physicist who played important roles in the development of radar and the atomic bomb during the Second World War. She devised a method of releasing chaff, a radar countermeasure technique credited with reducing losses among Allied bomber crews.
Based on this, Page, Taylor, and Young are usually credited with building and demonstrating the world's first pulsed radar. An important subsequent development by Page was the duplexer , a device that allowed the transmitter and receiver to use the same antenna without overwhelming or destroying the sensitive receiver circuitry.
Radar detectors are built around a superheterodyne receiver, which has a local oscillator that radiates slightly. It is therefore possible to build a radar-detector detector, which detects such emissions (usually the frequency of the radar type being detected, plus about 10 MHz for the intermediate frequency).
About Wikipedia; Contact us; Contribute ... Pages in category "Radar pioneers" ... This page was last edited on 2 January 2014, at 16:16 ...
The FuG 227 Flensburg was a German passive radar receiver developed by Siemens & Halske and introduced into service in early 1944. It used wing and tail-mounted dipole antennae and was sensitive to the mid-VHF band frequencies of 170–220 MHz, subharmonics of the Monica radar's 300 MHz transmissions.