I do know that her autistic daughter jumps when fireworks go off at an event, but fireworks don't bother our friend at all. That's just being startled. Her house like any other house is mostly likely surrounded in RF. I on the other hand have VHF, UHF and HF but don't Tx that much and obviously never when they come to visit. All they have (to the best of my knowledge) are cell phones and no complaints there.