They should be identical to the typical spurious emissions standard. Airplane mode is a common way to quickly test spurious emissions before spending tens of thousands on an external lab to certify your device. I'm sure there's some sort of RF magic you could use to get range with 25uW radiated, but it sounds difficult and unnecessary when no one actually uses airplane mode in regular life.
GPS satellites broadcast data, and the GPS receivers (e.g. your phone) only receive. That means that they are completely invisible to the satellites.
You are tracked on your phone because it is connected to the Internet somehow, so it can send your location. But with only a GPS receiver (my Garmin running watch for instance), you are completely invisible.
Everybody seems to focus on the RF free comment...
I was talking about towers and such.
But I really appreciate the comments.
If you have ever been in remote areas, and intrinsically 'felt' a disconnect from the tech world (meaning not near any major RF transducers) let me know...
because I have been super remote (arctic circle) etc a bunch and also remote jungle, and I feel a difference.
Perhaps placebo mental conditioning, but just curious if anyone else felt the same effect??
I assume they were referring to the "RF free zone" claim. Which is nonsense, since RF noise existed long before humans figured out how to generate it, from storms, or even the sun itself.
I think you might have a point w.r.t. tracking, but you brought up "RF free". There's next to nowhere on earth you can go to escape radio transmissions completely, except a faraday cage or maybe a deep mine. Besides GPS, there's been shortwave radio broadcasts bouncing all over the place for a century.
Thought you could be untrackable off grid? Think again.
Think you can be in an RF free zone, anywhere on planet? Nope.
There is no "off-grid" when your grid is literally LAT+LONG
100% data access sounds awesome until you realize that its no longer "surveillance state" and its "surveillance planet"