# \#gps

**URL:** https://scanalyst.fourmilab.ch/tag/gps/89.md

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## [Why Everyone Needs a GPS](https://scanalyst.fourmilab.ch/t/why-everyone-needs-a-gps/2725)

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**Author:** [@magus](https://scanalyst.fourmilab.ch/u/magus)\
**Replies:** 2\
**Last updated:** [9 February 2023 22:14 UTC](https://scanalyst.fourmilab.ch/t/why-everyone-needs-a-gps/2725 "2023-02-09T22:14:58Z")

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Isaac Botkin dives into the importance of having a dedicated GPS device, how they work, and how to use them, and touches on GPS spoofing and jamming. Why? Because our system is more fragile than we think a…

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## [GPS Jamming in Airspace near Ukraine](https://scanalyst.fourmilab.ch/t/gps-jamming-in-airspace-near-ukraine/1135)

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**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 0\
**Last updated:** [2 April 2022 11:30 UTC](https://scanalyst.fourmilab.ch/t/gps-jamming-in-airspace-near-ukraine/1135 "2022-04-02T11:30:02Z")

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## [Before GPS—The Navy Navigation Satellite System](https://scanalyst.fourmilab.ch/t/before-gps-the-navy-navigation-satellite-system/112)

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**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 0\
**Last updated:** [15 October 2021 11:40 UTC](https://scanalyst.fourmilab.ch/t/before-gps-the-navy-navigation-satellite-system/112 "2021-10-15T11:40:18Z")

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This 1967 U.S. Navy training film describes the Transit satellite navigation system, which went into service in 1964, providing global coverage with position fixes every several hours at the equator and mor…