Saturday 14th December 2024
Difficulty: Hard
GPS (Quiz #757)
Pic: USAF (Public domain)
The Global Positioning System (GPS) is a satellite-based radio navigation system owned by the United States Space Force, providing geolocation information to any device with a GPS receiver.
1. When was the first GPS satellite launched?
2. How many GPS satellites does your device need to have "in view" to determine your 3D position (latitude, longitude and altitude)?
3. At what power does a GPS satellite transmit its signal?
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