***Meaning*** :: <u>C</u>ommon <u>T</u>raffic <u>A</u>dvisory <u>F</u>requency ***Definition*** :: A frequency designed for the purpose of carrying out airport advisory practices while operating to or from an airport without an operating control tower. The CTAF may be a Universal Communications ([[Unicom]]), [[MULTICOM]], Flight Service Station ([[FSS]]), or tower frequency, and is identified in appropriate aeronautical publications. ***Source*** :: [[AC 90-66]] #glossary #acronym