Signal Device Diagram

Appears to depict the broadcast device as pictured in the Arecibo message response. It is unknown what materials or mechanism used, this appears to depict a chain reaction of some kind, some believe that microwave energy is involved with the flattening of the crops. There was also another pattern that appeared a few years later in 3 stages, seeming to depict the transmission of the signals and likely provides another perspective on the device.