To: BenLurkin
Signals from existing global navigation satellites near the Earth could be used to guide astronauts in lunar orbit, 385,000 km away. So, exactly how strong are the signals coming from our cell phones' GPS?
3 posted on
03/19/2020 10:37:09 PM PDT by
stars & stripes forever
(Blessed is the nation whose God is the Lord. (Psalm 32:12))
To: stars & stripes forever
So, exactly how strong are the signals coming from our cell phones' GPS? No signal. For those using it GPS is a receive only system. You don't transmit anything, just receive signals from multiple satellites and calculate your location based on their location and time to receive the signals.
7 posted on
03/19/2020 10:56:39 PM PDT by
KarlInOhio
(Newton invented calculus when the plague shut down Cambridge. What will you do with your time off?)
To: stars & stripes forever
Your cell phone does not emit a signal for GPS. It only receives signals from the satellites. It then computes position from the satellites based on time signatures in those signals.
15 posted on
03/20/2020 7:22:49 AM PDT by
GingisK
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