Globalstar, Inc. (Nasdaq:GSAT) has commenced installation of network upgrades, supplied by Comtech Aero Astro, designed to enhance the overall customer messaging capacity and the data receiver sensitivity of the Globalstar Simplex data network. Globalstar's highly reliable Simplex data network is used to support a variety of emergency asset, fleet management and personal tracking applications as well as Globalstar's award-winning SPOT Satellite GPS Messenger(tm) products.

The increased receiver sensitivity resulting from the upgrades is expected to expand Globalstar's geographic Simplex coverage area and offer enhanced reliability in certain usage environments and operating conditions. Earlier this month, Globalstar began installing the upgrades at its gateway ground station facility located in Wasilla, Alaska. The Company plans to complete the installation of the enhanced software at all of its gateways equipped with Simplex data appliques by late October. In addition to supporting the SPOT Satellite GPS Messenger and various asset tracking product solutions, the Globalstar Simplex data network is also used to support a number of remote monitoring and alarm applications, both within and beyond the reach of traditional wireless and terrestrial infrastructure. Information such as GPS location co-ordinates, remote status and other sensor information can be reliably sent to customers using the Globalstar Simplex network.