I don’t know if this ever came up, but I give general geomatics courses where I have to do presentations on GNSS systems. I have access to Emlid units, but in many classrooms, there are no windows from which I can get even a sub-par satellite reception.
I wonder if there’s a hidden demo mode that spoofs satellites. It would be incredibly useful to be able to do practical demonstrations, even from inside the building, that I can project on a screen for the whole classroom to see.