(2012)

It also interferes with GPS and Iridium. USB3 is a broadband jammer.

Previous thread on the subject: https://news.ycombinator.com/item?id=24707479

Experienced terrible headaches trying to fix issues with GPS and USB3 at work. I was also surprised by how sparse information online was. Almost all mentions came from random drone hobbyist's forums when I was searching some time ago.

your GPS device doesn't actually transmit anything

You can fix that! Get a BladeRF, HackRF, LimeSDR, and you can transmit your own GPS signals:

https://github.com/osqzss/gps-sdr-sim

(Seriously: Don't do this unless you're taking extreme care not to radiate outside your lab.)