FCC chair says we’re too dependent on GPS and wants to explore ‘alternatives’.
-
How do we call these assholes and tell them to get their heads out of Muskovitch's ass?
-
There's no reason why some sort of augmentation system couldn't improve the navigation situation with the big dig. Stick some low power beacons that provide GPS-like signal in the tunnel based on their predetermined location and we'll have GPS accounting for special relativity, general relativity and continental drift.
-
Is that the difference between when something like Google Maps has your general location and when it has your specific location?
-
Starlink is LEO, GPS is not.
-
Isn't GPS a US project?
-
Oh, so that's what that saucer is for.
-
And I'm sure that's a distinction politicians really care about. /s
Your answer is rational. US politicians are not, since they have an agenda to hand off their money and power to Trump and Elon.
-
three sats determine your accurate position. the fourth is for clock correction only.
-
Lat/Long is only valid if elevation is valid. You can't reference a lat/long that is miles into space... or beneath the crust of the earth.
-
No.
Satellites project a sphere, you need 4 in order to get to a singular point. I've outlined each step. Fourth isn't for clock correction only. And even outlined why sometimes 3 is okay, but that requires additional logic that many gps devices sometimes can't compute, and even outlined that the vast majority of devices will use way more than 4.
https://gisgeography.com/trilateration-triangulation-gps/
https://www.gps.gov/multimedia/tutorials/trilateration/ -
You know what's a great backup? The ability to read a map or use a compass. This is set up to get Starlink or another billionaire to own GPS.
-
It's like you're making my point for me.
-
Reject modernity, return to sextant.
-
A watch... or other simple gps device doesn't know what the elevation is.
Only one of the 2 selected points in a 3 satellite setup will be valid. And your device would have no idea which one is valid without elevation knowledge or a 4th satellite. Some devices can figure it out with just 3 satellites. Many/most won't. But ultimately it's the same thing. You need 4 pieces of input. Either 3 satellites AND elevation. Or 4 satellites.
So no. I've not made a point "for" you. You're just ignorant or specifically being obtuse on something you clearly don't understand.
-
A watch... or other simple gps device doesn't know what the elevation is.
My point, exactly
-
Which is why they'd need 4 satellites. Read the whole post. Read the given sources. Stop being stupid.
-
it doesn't work once you leave the atmosphere.
Fun fact: just this past week an experiment on a lunar lander confirmed that GPS signals can be detected from the surface of the moon. I don't know if those signals can give any kind of location precision, but it is an interesting finding.
-
I did read the whole post. Stop being an asshole.
-
How's the FCC going to prepare for anything when it's being gutted?
