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The title actually means "How do GPS receivers receive signals from the GPS satellites?" It's not about other satellites communicating with GPS satellites. TL;
by plq 2y ago
The title actually means "How do GPS receivers receive signals from the GPS satellites?" It's not about other satellites communicating with GPS satellites.
TL;DR: They use special-purpose antennas.
- kragen 2y agothat is completely the wrong answer
- mikestew 2y agoHow so? The summary of the article at the bottom of TFA, helpfully labelled "Summary", says this: GPS antennas, located on satellites, spread across the globe, integrated into application receivers, make possible the systems that keep us on time and on track. Sounds like parent might not be completely right, but they're certainly not "completely wrong".
- BenjiWiebe 2y agoThe antenna is not the special part. The special part is the signal processing magic that allows decoding of extremely weak signals. Also, the antennas on receivers are dramatically different then the antennas on the satellites.
- mikestew 2y agoThen I suggest GP go argue with TFA author, rather than calling out a comment as "completely wrong" when TFA summary says otherwise.
- kragen 2y agothis is correct, thank you 'they use special-purpose antennas' is as misleading an answer as 'they use electricity' or 'they use radio waves'. even the summary of the article doesn't claim the antennas are special