Broadcast spreaders are the choice of the many pros. Broadcasters work best for larger yard and areas where precise control is not needed. They deliver their payload more quickly over a wider area. One of their wheels is geared so that as the spreader moves, the drive wheel turns a whirling impeller plate under the hopper that catches and throws the payload. When the shutoff plate is open, the impeller broadcasts the material in a 180-degree arc.