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PARAMAX COMPLETES INSTALLATION OF 10 WSR-88D ADVANCED WEATHER RADARS

 PARAMAX COMPLETES INSTALLATION OF 10 WSR-88D
 ADVANCED WEATHER RADARS
 MCLEAN, Va., April 9 /PRNewswire/ -- Paramax Systems Corporation announced today that it has completed construction and installation of all 10 of the advanced Doppler weather radars ordered by the federal government under a limited rate production phase. The latest radars were built near St. Louis; Dodge City, Kan.; Keesler Air Force Base, Miss.; and Houston/Galveston, Texas. Paramax, formerly Unisys Defense Systems, is a wholly owned subsidiary of Unisys Corporation (NYSE: UIS).
 Both the St. Louis and Dodge City radar installations were completed in February and were turned over to the U.S. National Weather Service under an early usage agreement. The Keesler AFB system was completed and began operations in March. The Houston/Galveston system is currently undergoing operational readiness testing and is expected to become operational in mid-April. The new radars join those that have already been installed and are being operated by the National Weather Service in Oklahoma City, Okla; Sterling, Va. (near Washington); Melbourne, Fla. (near Kennedy Space Center); and Kansas City, Mo.
 Two other WSR-88D radars are operated by the U.S. Department of Defense, at Eglin Air Force Base in Florida and Altus Air Force Base in Frederick, Okla.
 Full-scale production is scheduled to begin in June 1992 and continue through 1996. The production rate will start at one radar a month and gradually accelerate to four per month.
 The new weather radar, first known as the Next-Generation Weather Radar (NEXRAD) and now designated the Weather Service Radar-1988 Doppler (WSR-88D), will replace radar units that date back to the late 1950s. The new radars will provide significantly advanced capabilities that are specifically designed to improve warning times of severe storms that can cause personal injury or property damage.
 Because of its higher sensitivity, the new radar generates more accurate information on severe storms and also can provide previously unavailable information on wind velocity, direction and turbulence using the Doppler effect, a capability that the older WSR-57 radars do not have.
 The weather information processed by the radar's signal and data processors is transmitted to a workstation called a Principal User Processor (PUP). PUPs permit weather data from a single WSR-88D to be viewed simultaneously and independently at multiple locations.
 A number of PUPs have been installed at sites that need to obtain weather information directly, via telephone connections to nearby WSR-88Ds. For example, PUPs have been delivered to Andrews Air Force Base; Kennedy Space Center; the National Severe Storms Center; the National Hurricane Center; the National Meteorological Center; and the Washington, D.C., Air Route Traffic Control Center, among others. To date, 42 PUPs have been delivered.
 Paramax's Systems Development division in Great Neck, N.Y., is under contract to the U.S. Department of Commerce to deliver up to 175 WSR-88D radars throughout the United States and at selected international locations in the Caribbean, Europe and Pacific Rim area over the next five years. The radar is capable of obtaining reflectivity data (a measure of precipitation intensity) up to 285 miles (460 km) from the radar, and velocity data on winds up to 142 miles (230 km) from the radar.
 A prototype radar in Norman, Okla., has been in use since 1990 and will serve as the Operational Support Facility to test future enhancements to the radar. The first major operational test of the system during severe weather conditions was conducted with the radar at Oklahoma City, however, during March 1991.
 The WSR-88D completed the operational assessment in Oklahoma City with flying colors. Larry Ruthi, the Science and Operations Officer of the Weather Service Forecast Office (WSFO) in Norman, noted in an article for the weather service's newsletter, "Without exception, the WSFO staff are very pleased with the reliability and quality of the data generated by the WSR-88D.
 "The high resolution reflectivity and velocity data, displayed on detailed city map backgrounds, enabled the forecasters to issue warnings and statements with greater specificity in space and time than ever had been possible before."
 During the storm season from March through mid-June, warning verification scores were calculated using the WSR-88D radar at the WSFO at Norman. The office had a 96-percent probability of detection of severe thunderstorms and an 83-percent probability of detection of tornadoes, with an average lead time for tornado warnings of 18 minutes. That compares to the detection probabilities for current radars of about 60-percent detection probability for severe thunderstorms, less than 40-percent for tornadoes, and average warning times for tornadoes of less than two minutes.
 In discussing the first impressions of the weather forecast staff of the WSR-88D system at Melbourne, Fla., a forecaster, writing in the National Weather Association Newsletter, said: "The introduction of the WSR-88D, with all its capabilities and highly detailed maps that allow great accuracy in locating and tracking significant weather, seems to many of us to represent more than a single generation of change from familiar radars. ... The WSR-88D is truly impressive."
 Paramax Systems Corporation, headquartered in McLean, is a $2 billion information systems company with 17,000 employees. A subsidiary of Unisys Corporation (NYSE: UIS), 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 manufacturer of commercial information systems, defense systems and related services.
 -0- 4/9/92
 /CONTACT: Laura N. Overstreet, 703-847-3375, or Pat Schoppmeyer, 516-574-1404, both of Paramax Systems Corporation/
 (UIS) CO: Paramax Systems Corporation; Unisys Corporation ST: Virginia IN: CPR SU: PDT


DS -- DC007 -- 6667 04/09/92 10:16 EDT
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Publication:PR Newswire
Date:Apr 9, 1992
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