Depends on who's the complainer! If it's an enterprise-level business, the FCC is going to storm in. If it's an individual, it's probably going to have to be whoever the mayor of your town points their finger at when they get a call to their hotline. My technician father was on the end of this once - he helped install a wireless water pressure sensor for the water utility and was called 200 miles back to the customer check out why someone was complaining about TV interference. With some radio test equipment, he determined it was... the complainer's electric blanket interfering with their TV!
