rf interference

I have a small handful of clients that are overly sensitive to RF/EMT emissions. If the Gateway is hardwired to the router, can we simply "cut" the power (wires) to the Wi-Fi antennae to eliminate the emissions. If not, any suggestions at eliminating or minimizing the emissions?

I posted this to the Model S Mechanical and Technical Issues thread but thought I'd cross post here. If you happen to go to Woodberry Kitchen - one of the best restaurants in the Baltimore area, be advised that where they now valet park your car is by a large tower that causes RF interference...