On August 12, 2013 at 22:35, Cmshapiro said...
And then even after consent is given, the FCC can still tell you to power down your equipment.
This has always been true. The FCC has control of bandwidth allocation. If you have spurs being generated outside of band, and they are unable to contact you, they will go as far as to turn off power to the property with the transmitter.
I was part of a Ham Radio club, where the FCC showed up and turned off our 2 meter repeater as they were saying we had out of band transmissions. They basically threatened the farmer whom our tower was on, so he shut it down. They gave us zero notice. They were there in their van, and wanted it shut down right then, or they were threatening to turn off the farmers power input to the barn we had our transmitter in. Turns out it wasn't our transmitter at all, as after they shut it down, the transmission spurs were still present! LOL