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PARAMAX DELIVERS ADVANCED WEATHER RADAR TO DETROIT

 MCLEAN, Va., June 30 /PRNewswire/ -- Paramax, a wholly owned subsidiary of Unisys Corporation (NYSE: UIS), delivered a new advanced Doppler weather radar to the National Weather Service (NWS) on Sunday, June 20, covering the Detroit area. The Detroit radar is located at 9200 White Lake Road in White Lake, Mich.
 The radar, dubbed the WSR-88D by the NWS, is already operational at 28 locations around the country and is providing significant improvements in detecting and tracking severe weather in those locations. Where the WSR-88D radar is operational, false alarm rates have been cut in half, and the probability of detection of severe storms has doubled to close to 90 percent accuracy. In Norman, Okla., which has the longest experience with the radar, average warning times of tornadoes have gone from two minutes with previous radars to 18 minutes with the WSR-88D.
 The new WSR-88D radar uses the Doppler effect to measure radial wind speed and velocity and can detect the circular motion characteristic of mesocyclones, the parent circulation of most tornadoes, as well as the unique radar Tornadic Vortex Signature (TVS) that indicates the formation of a tornado.
 The WSR-88D has a range of about 285 miles for reflectivity (precipitation) data and about 145 miles for velocity data. In addition to the Detroit area radar, the Paramax-built systems are scheduled to be installed in Marquette, Grand Rapids and Alpena, Mich., in 1995.
 Currently, 28 WSR-88D radars are installed and operational throughout the country. The radars are located at Oklahoma City, Tulsa and Frederick, Okla.; Sterling, Va. (just outside Washington); Melbourne, Miami and Eglin Air Force Base, Fla.; Dodge City, Wichita, Topeka and Goodland, Kan.; Kansas City (three radars, one operational and two for training) and St. Louis, Mo.; Keesler Air Force Base (training system) and Jackson, Miss.; Houston/Galveston, Central (Ft. Hood) and Amarillo, Texas; Dover Air Force Base, Del.; Griffiss Air Force Base, N.Y.; Vandenberg Air Force Base, Calif.; Andersen Air Force Base, Guam; Phoenix; East Alabama, Ala.; Denver; and Little Rock, Ark. A radar has also been installed at Norman, Okla., to serve as the Operational Support Facility for the entire WSR-88D program.
 Throughout the rest of 1993, radars are scheduled to be installed in Chicago; Grand Island, Neb.; Pittsburgh, Philadelphia and State College, Pa.; Cleveland; Indianapolis; Keesler AFB, Miss. (second training system); Binghamton, Albany, and Brookhaven (near New York City), N.Y.; Milwaukee; Ft. Knox, Ky.; Dyess Air Force Base, Texas; Boston; Portland, Maine; Millington, Tenn. (near Memphis); Ft. Rucker, Ala.; Boise, Idaho; and Des Moines, Iowa. In addition, three radars originally destined for the Republic of Korea and Japan for use by the U.S. Air Force are being diverted to Fairbanks and Anchorage, Alaska, and Molokai, Hawaii, for use by the Federal Aviation Administration (FAA).
 More than 160 of the radars are scheduled to be installed and operational by 1996 through the United States and at selected international locations. The principal users are the National Weather Service, the FAA and the U.S. Air Force Air Weather Service, all of which are jointly funding the program.
 One of the key advantages of the system is that up to 46 users can simultaneously receive live data from a single radar and manipulate that information independently through the use of workstations called Principal User Processors, or PUPs. For example, while the National Weather Service controls the WSR-88D radar at Sterling, Va., PUPs are used by Andrews Air Force Base (the base used by the president and other dignitaries) and the Washington Air Route Traffic Control Center (ARTCC) to independently monitor the weather.
 Beyond that, other potential users -- such as television, emergency management services and other interested users -- can buy direct access to the data from the radars through four distributors in what is called the NEXRAD Information Dissemination Service (NIDS). Paramax is one of four distributors of the data, which can be displayed on any standard 386 or 486 personal computer equipped with a modem.
 Paramax is one of the foremost weather radar system producers in the world. In addition to the WSR-88D, the company also has produced a demonstration network of 30 Wind Profiler systems in the central U.S. The Wind Profiler is designed to detect and measure the speed and direction of upper wind fields in clear air. The system can also be equipped to measure temperatures at various altitudes using acoustic devices. Paramax has also developed an experimental low-cost radar that can detect and measure microburst windshears at airports, with warning times of two to five minutes before the wind reaches ground level. All current systems can detect such microbursts only when the wind hits the ground and spreads out horizontally.
 Paramax, headquartered in McLean, is a $2 billion information systems company with more than 15,000 employees. A subsidiary of Unisys Corporation, Blue Bell, Pa., Paramax is an experienced leader in providing advanced integrated systems, electronic products and related professional services for civil and defense agencies in the United States, Canada and nations worldwide.
 Unisys Corporation is a leading information systems company with 60,000 customers in more than 100 countries. The company is a leading provider of commercial information systems, defense systems and related services.
 -0- 6/30/93
 /CONTACT: Patricia Schoppmeyer of Paramax, 516-574-1404/
 (UIS)


CO: Paramax ST: Virginia IN: CPR SU:

TW -- DC020 -- 7188 06/30/93 13:02 EDT
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Date:Jun 30, 1993
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