For anyone else confused (this took me the longest time, skimming the comments and then opening the article): no, indeed, this has nothing to do with GPS. They mean coordinates, not satellites. It's about indexing locations of old maps

What they mean is they use GPS to get their current coordinates, and then superimpose that on old maps. Because without GPS, how does the Allmaps Here app get your coordinates in order to plot it on old maps?