On my older Asus router there was a switch on the side of the unit that shut off the WiFi radio which we did every night. I just got a new Airport Extreme, Time Capsule and I was wondering if there was a way to shut off the wireless so that the radio won't transmit or receive at night? I know there is a function to disable the internet at night, but I still can see the base station (just not connect to it) so I know the radio still is on. How do I shut it off at night or on a schedule minus unplugging it from the wall? Thanks!