MULTICOM
Encyclopedia
In U.S.
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 and Canadian aviation
Aviation
Aviation is the design, development, production, operation, and use of aircraft, especially heavier-than-air aircraft. Aviation is derived from avis, the Latin word for bird.-History:...

, MULTICOM is a frequency allocation used as a Common Traffic Advisory Frequency (CTAF) by aircraft near airports where no air traffic control is available. Frequency allocations vary from region to region.

Despite the use of uppercase letters, MULTICOM is not an abbreviation or acronym.

In the United States, there are two MULTICOM frequencies: 122.9 and 122.925 MHz. (See AIM table 4-1-2) At uncontrolled airports without a UNICOM, pilots are to self-announce on the MULTICOM frequency.
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