Definition
COMMON TRAFFIC ADVISORY FREQUENCY (CTAF)
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 UNICOM, Multicom, FSS, or tower frequency and is identified in appropriate aeronautical publications.
- See: DESIGNATED COMMON TRAFFIC ADVISORY FREQUENCY (CTAF
Source: FAA Pilot/Controller Glossary (verbatim from the Federal Aviation Regulations).