I used to rent a place in a high rise appartment building one level before last, and the building had cell antennas on the roof. It did cause me problems - it disrupted my wireless UHF headphones audio, every few seconds with a short and loud "Bzzzz" in the headphones, as if someone hit you in the ears with nails. It was freaking painful, i had to stop using them. After a few years i moved and at my new place the headphones worked just fine.