Rockwell Collins was awarded a $6.4 million contract modification with the U.S. Navy to exercise an option for the production of 137 RT-1556B AN/ARC-210 Receiver-Transmitter Radios and 81 C-11898A Radio Control Sets for the U.S. Air Force Unmanned Air Vehicle Predator aircraft. Work will be performed in Cedar Rapids, Iowa, and is expected to be completed in May 2009.