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When you buy a gps unit...?
Do you also need to by some sort of subscription service to make it work, sort of like you do with cell phones? Does it depend on what brand/model/etc. you buy? I'm thinking handheld here, by the way, not automotive. Thanks in advance!
2 Answers
- paul67337Lv 72 decades agoFavorite Answer
No, you don't need a subscription. In a way, you've already paid for it with your taxes. The govt operates the GPS satellites.
- Nick NLv 52 decades ago
And despite what some people believe, the government cannot track your GPS use- it's a one way signal. Even though it seems like the government must know your location in order to tell you how it works, it's actually the receiver that determines its location by measuring its distance from the satellites (by measuring the difference in timing between the signals). So your privacy is also safe.
There are systems that let you track children, etc, by GPS, but they work by adding a cell phone into the unit so that it can upload the location data to a cellular network. But a standard handheld device is one way only.