Upgrade for GPS sims. (Digest).

Interstate Electronics has upgraded its model 2400 Global Positioning System (GPS) Satellite Constellation Simulator to the performance and accuracy standards of the company's newer generation SCS 2450, thereby providing a 300 per cent increase from the 2400 system's initial processing capability. The low-cost hardware upgrade translates to a more reliable operation and additional capacity, providing support for future upgrades, such as Selective Availability Anti-Spoofing Module (Saasm) testing. The upgrade also provides for vehicle motion update rates to increase by 500 percent, while the maximum inertial measurement unit data output rate is increased by a 250 per cent margin, allowing users to develop higher resolution and more accurate simulations. The new processor, ripe with a new memory capacity, dynamically allocates its 208 MB of Ram between motion data storage and data logging, which is a major improvement over the 32 MB originally provided in model 2400.