The SPOT Satellite GPS Messenger provides a vital line of communication with friends and family when you want it, and emergency assistance when you need it. Using 100% satellite technology, SPOT works virtually anywhere in the world, even where cell phones don’t – all with the push of a button.

What is Carrier Phase ?

Ashtech offers the possibility to use carrier-phase techniques to achieve higher accuracy (centimetre level). This method counts the exact number of cycles of the carrying frequency between the GPS satellites and the receiver’s antenna.

The process requires an initial observation time to resolve the carrier-phase ambiguity. This period varies depending on the number of satellites available, the quality of the constellation, the baseline length (distance between base station and rover) and the technique used (On-the-fly Realtime Kinematics, Post-processed Static or Semi-kinematics, etc).

DISCOVER ASHTECH KEY MILESTONES!

(1970)
Sercel an electronics company in France starts the radiopositioning business using land based UHF transmiters at the time.

(1978)
NAVSTAR (Navigation System with Timing And Ranging), now known as GPS (Global Positioning System), launched by U.S. Department of Defense.

The Company ASHTECH has a solid reputation as the manufacturer of the world’s leading precision GPS and GPS+GLONASS products for positioning, guidance, navigation, and timing with a wide range of solutions for diverse applications in science, education, government, industry and commerce.

What is BLADE?
Ashtech invests heavily in the development of cutting-edge technology to further strengthen its position as a leading designer and developer of precision positioning technology. Recent developments have produced greater product integration and progressive augmentations to GPS/GNSS. These advances are apparent in the latest line of professional products including the new Ashtech BLADE™ Technology.