Intro to GNSS Resources

A satellite orbiting earth with the sun rising over the horizon of the earth

Look through our short articles on specific topics, covering frequently asked questions about GPS and GNSS and how they are applied.
View of Earth from space with orbiting satellites and bright blue lines connecting to various points on earth

What are Global Navigation Satellite Systems?

What are Global Navigation Satellite Systems (GNSS), how does performance compare across different constellations and how do they support position, navigation and timing applications across the world? Learn how GNSS were developed and how they are used today.

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Illustrative drawing of satellites, control stations and user equipment, the three segments that make up GNSS, working together.

How does GPS work?

Learn the fundamentals of how GPS works, including the hardware, math and signals that make up the system.

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