The wireless spectrum is becoming increasingly crowded. Historically, the wireless transceiver is designed to be static around a frequency allocated by the FCC. If new usage of the spectrum is allocated adjacent to the system, there was little that could be done. Conservative use of the spectrum has resulted, and innovation has been stifled. However, wireless systems that can be aware of the surroundings and react accordingly are being developed at Purdue University. Professor Bill Chappell will discuss the results of his DARPA-funded research on adaptable RF systems and will offer his perspective on increasing the use of the RF spectrum.