The construction on Eddie's property was passed off to city inspectors as a racquetball court, disregarding the soundproof walls with cinder blocks filled with concrete. A challenge arose in the form of a powerful AM radio antenna from a sports station broadcasting 50,000 watts of power a few miles away. To prevent Eddie picking up boxing fights and football games through his wireless guitars, engineers wrapped a layer of grounded chicken-wire fencing around the studio, turning it into a Faraday cage.