***Meaning*** :: <u>T</u>raffic <u>I</u>nformation <u>S</u>ervices–<u>B</u>roadcast ***Definition*** :: A ground-based service providing information to the flight deck via data link using the S-mode transponder and altitude encoder to improve the safety and efficiency of [[see and avoid]] flight through an automatic display that informs the pilot of nearby traffic. ![[TIS-B Overview.png]] ***Source*** :: [[PHAK Glossary]] #glossary #acronym