The present invention relates to a method and apparatus for providing the player of an electronically-controlled gaming device with greater control of selected parameters of the game. In the transmitter, a signal spread by a first sequence of pulses is generated with pulse shape given by p,. The coating may contain adjuvants. A conveyor conveys the debris material along a conveyor path and an agitator bounces the conveyor to cause the lighter plastic to reposition to the top of the material on the conveyor.