After a successful maiden deployment, the USS Decatur (DDG-73) returned to home port in San Diego, California. Along with refitting that follows each deployment came a number of equipment changes, including one that would have a subtle yet important effect on the ship's underway operations: installation in the combat information center (CIC) of the Tactical Decision Support Subsystem (TDSS), which would come to replace the Dead Reckoning Tracer (DRT) as a tool for contact maintenance, tactical awareness, and passive submarine tracking.
Intended originally as only a support interface between sonar control and the CIC, the subsystem has a number of "bells and whistles" that assist numerous CIC functions. From calculating wind envelopes for landing helicopters to calculating bearing and range to a drifting man overboard, there seemed to be nothing that TDSS could not do. In its fervor to promote command, control, communications, computers, and intelligence (C4I), the Navy replaced the DRT with the TDSS.