What I mean is:
So, when you set up tethering on your phone, you create a Bluetooth Personal Area Network (PAN). Now, that is just one PAN. It won't do much of anything to the internet connection. Now, picture a stadium (or the stands at competition) with over a few hundred bluetooth PANs. When you have these many bluetooth PANs, the Wifi (the transmission the Field Management System (FMS) uses) will have more interference.
As a programmer, I would say this because the Ping time, back and forth, gets greatly increased. That means that if you are doing offboard processing like vision tracking, the lag will get so high, the driver would go home (or their hotel room) with a migraine.
I tried to elaborate. Please let us know if you have any problems, and remember, there is the old, handy-dandy google!
