Between voyages, the escort underwent anti-submarine training at Derry or at Casco Bay, Maine, and received repairs made necessary by the rough North Atlantic weather.

On 21 October, Schmitt began a convoy voyage from Norfolk to Bizerte and other Mediterranean ports, returning to New York on 10 December.

She embarked Underwater Demolition Teams there and carried out six days of exercises with them at Maui before sailing for the Southwest Pacific on 4 June.

Between 17 and 30 November, she made one round-trip voyage to Pearl Harbor, bringing troops home to the United States, and then sailed through the Panama Canal and proceeded to join the Atlantic Fleet at Norfolk on 16 December.

She varied her normal routine between 12 June and 7 July 1948 when she escorted four Naval Academy sailing yawls in the Newport to Bermuda race.