 Global Positioning System (GPS) satellites broadcast microwave signals to enable GPS receivers on or near the Earth's surface to determine locationand time, and to derive velocity .
<clarity>  Global Positioning System (GPS) satellites broadcast microwave signals to enable GPS receivers on or near the Earth's surface to determine locationand time, and to derive velocity .
 Global Positioning System (GPS) satellites broadcast microwave signals to enable GPS receivers on or near the Earth's surface can determine location, time, and to derive velocity .