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SCIENTIFIC-ATLANTA TO SUPPLY SATELLITE TRACKING STATIONS TO NASA

 ATLANTA, Feb. 2 /PRNewswire/ -- Scientific-Atlanta (NYSE: SFA) has received a $3.2 million contract modification from the National Aeronautic and Space Administration to modify one of three transportable ground stations currently being produced for NASA.
 The modified equipment will be deployed by NASA as a participant in the Canadian government's Radarsat microwave radar earth imaging program and will be used to receive microwave radar image data from polar orbiting satellites. Scientific-Atlanta's sophisticated ground station equipment will form a vital link in the high speed satellite communications system.
 NASA plans to install the Scientific-Atlanta equipment at the McMurdo station located in Antarctica. Data will be received at the site and transmitted to The University of Alaska in Fairbanks for processing of the radar images which will then be distributed to the scientific community. Unlike other satellite imaging systems, microwave radar systems can obtain features regardless of cloud cover and can be used to measure altitude to provide three-dimensional images. Some locations on the earth have almost continuous cloud cover, making visual photography difficult. Radar imaging also avoids the problem of shadowing and it can be used at night. Because ice has different radar reflectivity characteristics than water, the system also can be used to track ice flows.
 The NASA program will be used to support the Canadian Radarsat mission to be launched in January 1995. Radarsat is most notable in aerospace engineering terms for its synthetic aperture radar (SAR) payload and incorporates the most sophisticated spaceborne radar technology attempted to date. Using microwave radar imagery, Radarsat will provide extremely detailed images of earth in daylight, darkness and through clouds. The radar payload features an extremely versatile planar array antenna that permits quick selection of a variety of operating modes designed to generate data for commercial and research applications.
 The project requires quick design and manufacturing turnaround of equipment for X and S-band reception and S-band transmission. The Scientific-Atlanta equipment will include an antenna, a pedestal and associated electronics with high speed digital data recording capability. Due to the remote location, the system requires extensive remote computer control capability and design ruggedness to withstand the hostile environment in Antarctica.
 Scientific-Atlanta is scheduled to ship the equipment in November 1993 for installation in 1994.
 Scientific-Atlanta, Inc. is a world leader in broadband communications systems, cable television electronics, satellite-based communications networks and instrumentation for industrial, telecommunications and government applications.
 -0- 2/2/93
 /CONTACT: E. Scott Wood of Scientific-Atlanta, 404-903-2503 or, home, 404-963-8293/
 (SFA)


CO: Scientific-Atlanta, Inc.; National Aeronautic and Space
 Administration ST: Georgia IN: CPR SU: CON


BN-BR -- AT006 -- 1749 02/02/93 10:26 EST
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Date:Feb 2, 1993
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