After arriving at Trinidad on 3 October, "Biloxi" conducted two weeks of battle drills and other exercises. These included radar calibration tests, night and day battle practice, fueling at sea exercises, and fighter (CAP) director drills. Departing Trinidad on the 18th, the light cruiser entered the Norfolk Navy Yard on 26 October for post-shakedown overhaul. Following these repairs, and a short trip north to Rockland, Maine, for gyro and compass standardization trials, "Biloxi" sailed south for the Canal Zone on 20 November.