Empirical evidence is the output of receivers, the system documentation from the US, Russian and European systems and direct observation of the performance in different locations across the world.
No it isn't.
To show this is wrong you will need to come up with specific details such as documented transmitter locations and design information.
No I don't.
Because satellites defy all the laws of physics; ergo they cannot exist.
Ergo, some other method must be used to produce the results attributed to them.
I have given a valid hypothesis for this method, based upon known technology & empirically observable phenomena.
But thank you for trying to shift the onus of proof & attempting to send me on a wild goose chase examining vast amounts of data which I have no means of ascertaining the veracity of.
It makes you look very sincere indeed & not at all a time-wasting hive-mind disinfo-shill.