GPS.gov: Space Segment
Global Positioning System satellite achieves 20 years on-orbit > Air Force Space Command (Archived) > Article Display
Starting with GPS Basics - GNSS Solutions for OEMs
Boeing wins $329 million contract to support orbiting GPS satellites - SpaceNews
A Brief History of GPS
GPS Block IIF - Wikipedia
GPS Provides the Reference for Precision Time & Frequency Products | EndRun Tech
History of GPS satellites and commercial GPS tracking | Geotab
GPS - What is it and how is it used in the supply chain? - Shellock
How Does GPS Work? | NASA Space Place – NASA Science for Kids
Global Positioning System Payloads | L3Harris® Fast. Forward.
Global Positioning System
Satellite navigation - Wikipedia
Feb. 14, 1989: GPS Enters Orbit | WIRED
Brief History of GPS | The Aerospace Corporation
UK: GPS satellites could warn of incoming tsunamis | PreventionWeb
GPS Wars | National Security Archive
Newest GPS satellite goes active – Spaceflight Now
GPS Block III: a new generation of GPS satellites now included in the EGNOS solution | EGNOS User Support
How Does GPS Work? | NASA Space Place – NASA Science for Kids
Global Positioning System Payloads | L3Harris® Fast. Forward.
How GPS works: the magic of satellites and precise watches
What is GPS?
GPS | Definition, Types, Uses, & Facts | Britannica
New Air Force Satellites Launched To Improve GPS | TechCrunch
