Do you think the basics of this DGPS system are in place? How can a simple and inexpensive system like this be put back on track and ultimately achieve accuracy greater than a single, commercially ...

Hemisphere GPS brings innovative technology to the XF101 DGPS receiver. Position accuracy and stability are optimized by their exclusive Crescent® Receiver Technology for sub-meter accuracy. COAST™ ...

A satellite's positioning accuracy is impeded by errors in its clock and signal delays caused by atmospheric conditions. Also called a "differential GPS" (DGPS), an augmentation system compensates ...

DGPS technology is the first to economically offer geodetic accuracy meeting the federal planning requirement of 26.2 to 65.6 ft. (eight to 20 m) for harbor and harbor approach navigation.