On Mar 30, 2025, at 9:50?PM, Harry Jacobson-Beyer via groups.io <hejb44@...> wrote:
I figure there must be something wrong with the GPS Satellite. Is there any way to check if a satellite is malfunctioning? I mean if my phone, my wife’s phone, and the car’s navigation system are acting as if they don’t know where they are then it’s got to be the satellite, RIGHT????
My first guess would be someone interfering with the GPS radio frequencies in that area. Maybe an out of band defective transmitter? Russia is doing this purposely in?, causing airliners to go astray. Ukraine is doing it over their own territory to?.
For location services a GPS system needs to simultaneously see at least three of the system satellites. There are normally at least 24 satellites in the whole system. It can use them to triangulate its position in 3-D space. I was amazed to see a couple of weeks ago that the Blue Ghost lunar lander was able to use the earth-orbiting GPS satellites to figure out?.
L^2
