Rockwell Collins Inc., Cedar Rapids, Iowa, has been awarded a maximum $46,581,071 firm-fixed-price, indefinite-delivery/indefinite-quantity contract for procurement of improved frequency modulation power amplifiers. This contract was a sole-source acquisition. This is a five-year base contract with no option periods. The location of performance is Iowa with a Dec. 19, 2019, performance completion date, and the using military service is Army. Type of appropriation is fiscal 2015 Army working capital funds. The contracting activity is the Defense Logistics Agency Land and Maritime, Aberdeen Proving Ground, Maryland (SPRBL1-15-D-0003).