Ele is our hedgehog mascot for the DARPA SDR Hackfest efforts. She came into being while the DARPA Hackfest team was discussing the future of software radio and its next inevitable steps. One of the perspectives we are bringing you is that the future of SDR is SDA – software defined arrays. For a long time now, all communications systems have been moving towards using multiple antennas, but this array approach remains underexplored in the SDR world. That said, more hardware supporting two or more antenna elements is becoming available and these tools will enable innovators to work with larger and larger arrays. In biology, a collection of hedgehogs is called an array and in the radio realm an antenna in an array is called an element. So we created Ele, short for Element, as our mascot.