ELLSWORTH AIR FORCE BASE, S.D.--(Left) Tech. Sgt. Jason Willson, 28th Communications Squadron radar maintenance noncommissioned officer in charge and Airman 1st Class Gary Isabelle, 28th Communications Squadron radar maintenance technician, view the status of the Digital Airport Surveillance Radar, Oct. 14. The DASR technology is the newest available technology and it uses less power, requires less maintenance and manpower, and costs significantly less to operate than other systems currently in use. (U.S. Air Force photo/Airman 1st Class Corey Hook)