Chub was commissioned in March 1807 under Lieutenant Wentworth Croke. Chub may have assisted at the invasion of Martinique between January and February 1809. If so, she does not appear among the vessels whose crews qualified for the Naval General Service Medal when the Admiralty awarded it in 1847. Lieutenant William Innes replaced Croke in June 1809, and was in turn replaced by Lieutenant Samuel Nisbett in 1812. Chub captured several vessels in 1812 while on the Halifax station. On 18 July she captured the privateer Eliza and on 6 August the merchantman Grace.