Try õ (alt-230) in your text string or note.....
Other common ones are ñ (alt-241), ð (alt-248), à(alt-0216), unitò (alt-0178), and unitó (alt-0179).....
GE Healthcare Technologies
Clinical Systems
Monitoring Solutions
Eric R. Slotty
Mechanical Designer
8200 W. Tower Avenue
Milwaukee, WI 53223