There's only two ways you can lose GPS from a fixed location: local jamming, or all of the satellites getting disabled somehow.
A jammer will typically be detected and stopped before any damage is done. Even owning a GPS jammer is illegal in most places.
All of the satellites going down is probably a cataclysmic scenario, like global nuclear war or solar flares. Not worth worrying about because you'll have much bigger problems.
GPS is one of the most reliable systems there is. There are redundant constellations of satellites run by different companies in different countries. It'd be near impossible to disrupt service from all of them at once.
GPS is one of the most reliable systems there is. There are redundant constellations of satellites run by different companies in different countries.
1. GPS refers specifically to the system run by the united states government. The generic term is GNSS
2. Even though there are multiple GNSS systems out there, and modern phones support multiple, it's unknown whether the same applies to other systems. Supporting multiple systems costs more money, so I suspect hardware vendors might skimp on that, especially when the benefits are so marginal.
Comments
There's only two ways you can lose GPS from a fixed location: local jamming, or all of the satellites getting disabled somehow.
A jammer will typically be detected and stopped before any damage is done. Even owning a GPS jammer is illegal in most places.
All of the satellites going down is probably a cataclysmic scenario, like global nuclear war or solar flares. Not worth worrying about because you'll have much bigger problems.
GPS is one of the most reliable systems there is. There are redundant constellations of satellites run by different companies in different countries. It'd be near impossible to disrupt service from all of them at once.
1. GPS refers specifically to the system run by the united states government. The generic term is GNSS
2. Even though there are multiple GNSS systems out there, and modern phones support multiple, it's unknown whether the same applies to other systems. Supporting multiple systems costs more money, so I suspect hardware vendors might skimp on that, especially when the benefits are so marginal.