Definition
An authorization issued by the Federal Communications Commission (FCC) permitting the operation of an aircraft radio transmitter. In the United States, a Radio Station License is required for the aircraft itself when flown internationally, and a Restricted Radiotelephone Operator Permit is required for the pilot operating the radio on international flights. Neither is required for purely domestic U.S. operations.
Plain English
Official permission from the FCC to use the radios in an aircraft. In the U.S., you only need it when flying internationally — one license covers the aircraft's radio equipment, and a separate permit covers the pilot using it.
Context Anchor
Seen when checking pilot and aircraft documents, especially before an international flight.
Derivation
Radio comes from the idea of sending signals outward, like rays spreading from a point. License comes from a Latin word meaning permission. Together, radio license means official permission to use radio equipment when the rules require that permission.
Why Pilots Care
Operating without a valid radio license can result in fines, especially on international flights.
Intuition Check
Do not assume a radio license means radio skill or radio training. Here it means legal permission, and it is not automatically required for every flight.
Example Sentence 1
Before her first flight to the Bahamas, she applied for a Restricted Radiotelephone Operator Permit and made sure the aircraft's Radio Station License was on board.
Example Sentence 2
During the ramp check the inspector asked to see the radio license along with the airworthiness certificate.