morse86
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- Aug 2, 2014
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If that was true, GPS wouldn't work... but it does.
GPS? Or radio towers triangulating position????
Before GPS, it was LORAN using radio towers. It was all ground based radio towers. They just "upgraded the radio towers" and called it "GPS using Satellites".
You don't know whether you're connecting to a SATELLITE OR A RADIO TOWER. You just believe by faith that you're connecting to a satellite. It's all software and hardware controlled to give you the illusion that you're connecting to a satellite.
Try turning off wifi and cellular signal in your smartphone and see how well GPS works (it even says not to turn it off in Google Maps).
That's why when Planes go out of radar range (radio towers), they have to depend on relayed communications. There are no radio towers in the middle of nowhere in the seas. They have to relay the communications.
For other areas, they have to resort to radio balloons or radio relaying planes.
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