That would explain why when I was testing this the number of satellites “in view” according to GPGSV sentences did not change when I moved the phone from the window to somewhere far away from the window. I was expecting to see fewer satellites in view, but there was no change. Probably I had never any satellite at all truly in view, the info shown was just what should be in view in theory based on the saved position and time info which are very far off.
Looks like it thinks I am in China, then I get to know which satellites would be in view it I was in China (and if the time was correct which it is not). 
I’ll try taking it into a field.