1133. Radio communication and radio navigation equipment.

The following provisions apply only to non-EASA aircraft1.

Where required by the notified airspace being flown, an aircraft registered in the United Kingdom2 must be equipped with radio communication equipment capable of conducting two-way communication with those aeronautical stations and on those frequencies to meet airspace requirements3. When more than one communication equipment unit is required, each must be independent of the others to the extent that a failure in any one will not result in failure of any other