UWA communication research will benefit greatly from the adaption of the USRP as an underwater acoustic modem. First and foremost, the development of a modem using the USRP has applications in oceanographic monitoring and communication. Quantitative information such as pollution and military surveillance data can be monitored in a more cost-effective way and relayed in underwater networks. Also, improved acoustic networking would allow more efficient transfer of information between oceanographic equipment such as autonomous vehicles, piloted vehicles, and underwater profilers [1].