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L band( 1- 2ghz) radar's &
milstar: Cobra Dane ,1 megawatt srednej 1215 -1400 mhz http://www.fas.org/spp/military/program/track/cobra_dane.htm First deployed in 1977, the AN/FPS-108 radar operates in the 1215-1400 MHz band using a 29m phased array antenna. The primary mission is to track and collect data on foreign intercontinental ballistic missile (ICBM) and submarine launched ballistic missile (SLBM) test launches to the Kamchatka impact area and the broad ocean impact areas in the Pacific Ocean. The metric and signature data collected support START 2 and INF treaty monitoring, and scientific and technical intelligence efforts http://www.fas.org/spp/military/program/nssrm/initiatives/cobradan.htm U) COBRA DANE generates approximately 15.4 MW of peak RF power (0.92 MW average) from 96 Traveling Wave Tube (TWT) amplifiers arranged in 12 groups of 8. This power is radiated through 15,360 active array elements, which together with 19,408 inactive elements comprise the 94.5 ft diameter array face. (U) The system, designated AN/FPS-108, has a phased array L-Band antenna containing 15,360 radiating elements occupying 95% of the roughly 100 by 100 foot area of one face of the building housing the system. The antenna is oriented toward the west, monitoring the northern Pacific missile test areas.
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