Yep, my friend had a meter just like it, thats how they determined it was safe for me and the techs to come to the Shed where the equipment was.
It was sort of interesting how the equipment was arranged. There was a stack of radio equipment, sort of like a blade server set up with all sorts of stuff being displayed on there LCD screens. When we started it up, i saw were the equipment did a start up scan and ran through all the frequencies.
There was a air conditioner outside blowing cold air into the shed too. REALLY Big fans on the back of all the radio stuff.
When we got it started up, my friend said no one will be able to use it for 1 hour cause the tower wasn't at full power. Maybe he was referring to the RF thing.
What i found interesting is half the equipment had a AT&T sticker and the other Half was Verizon labeled. (My friend works for verizon)
So i guess maybe they share towers??