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WeatherMAXTM Data Service


The Unisys Satellite Weather Gateway and Server is a computer used for collecting and distributing weather data. The server receives Unisys WeatherMAX products via a satellite downlink receiver. Features of the server are:

  • user configurable control files for product directory structure, site/product filtering, and product file naming specifications
  • automatic archiving (i.e., maintains a specified number of copies of each product and deletes files as they age)
  • decompresses compressed format products received from Unisys WeatherMAX
  • creates storm attributes products from NIDS Composite Reflectivity products
  • sends PAN (Product Arrival Notice) messages via a UDP/IP socket connection to a list of registered clients upon receipt of a weather product.
  • monitors GateWAY computer and displays an alarm if GateWAY computer loses the TCP/IP connection
  • monitors product quality and displays an alarm if a percentage of bad products (bad checksums, missing packets, etc.) are received over a specified time interval.


  • Linux - Gateway and server on a single PC running on Red Hat Enterprise Linux version 5.
  • QNX - Discontinued version that runs on two PCs under the QNX operating system. For additional documentation on the QNX set, see below.

Contact Information

Unisys Weather Information Systems
2476 Swedesford Road
Malvern, PA 19355
Phone: 800-610-9473
Email: technical-support@weather.unisys.com