MULTICOM

In U.S. and Canadian aviation, MULTICOM is a frequency allocation used as a Common Traffic Advisory Frequency (CTAF) by aircraft near airports where no air traffic control is available.¹ Despite the use of uppercase letters, MULTICOM is not an abbreviation or acronym.

Frequency allocations vary from region to region.

United States

there is one MULTICOM frequency: 122.9 MHz. (See AIM table 4-1-2 or AIM table 4–1–1) At uncontrolled airports without a UNICOM, pilots are to self-announce on the MULTICOM frequency.

Australia

there is one MULTICOM frequency: 126.7 MHz.

Brazil

there is one MULTICOM frequency: 123.45 MHz.