Article 59 Operation of radio in aircraftI1
United Kingdom
A radio station in an aircraft must not be operated, whether or not the aircraft is in flight, except—
in accordance with the conditions of the licence issued for that station under the law of the country in which the aircraft is registered or the State of the operator; and
by a person duly licensed or otherwise permitted to operate the radio station under that law.
Subject to paragraphs (3) and (4), whenever an aircraft is in flight in such circumstances that it is required by or under this Order to be equipped with radio communication equipment, a continuous radio watch must be maintained by a member of the flight crew listening to the signals transmitted on the frequency notified or designated for use by the aircraft by a message received from an appropriate aeronautical radio station.
The radio watch may be discontinued or continued on another frequency if a message from an appropriate aeronautical radio station permits this.
The radio watch may be kept by a device installed in the aircraft if—
the appropriate aeronautical radio station has been informed to that effect and has raised no objection; and
that station is notified, or in the case of a station situated in a country other than the Isle of Man, otherwise designated as transmitting a signal suitable for that purpose.
Whenever an aircraft is in flight in such circumstances that it is required by or under this Order to be equipped with radio communication or radio navigation equipment, a member of the flight crew must operate that equipment in such a manner as the appropriate air traffic control unit may instruct or as may be notified in relation to the airspace in which the aircraft is flying.
The radio station in an aircraft must not be operated so as to cause interference that impairs the efficiency of aeronautical telecommunications or navigational services, and in particular emissions must not be made except—
emissions of the class and frequency for the time being in use, in accordance with general international aeronautical practice, in the airspace in which the aircraft is flying;
distress, urgency and safety messages and signals, in accordance with general international aeronautical practice;
messages and signals relating to the flight of the aircraft, in accordance with general international aeronautical practice; and
such public correspondence messages as may be permitted by or under the aircraft radio station licence referred to in paragraph (1).