Globalstar plans to launch six of its second-generation satellites in July 2010 in a 30-day launch window.

The satellites will lift off from Kazakhstan’s Baikonur Cosmodrome using the Soyuz launch vehicle.

Globalstar global operations president Tony Navarra said that validation tests of the satellite subsystems and thermal vacuum tests had been completed.

The satellites will expand Globalstar’s existing constellation of satellites, improve satellite voice and data services, and restore it to pre-2007 levels, the company said.

The new constellation also secures Globalstar’s space segment beyond 2025, enabling the firm to provide services for another 15 years.