aircraft emergency frequency

aircraft emergency frequency: An international aeronautical emergency frequency, such as 121.5 MHz (civil) and 243.0 MHz (military), for aircraft stations and stations concerned with safety and regulation of flight along national or international civil air routes and maritime mobile service stations authorized to communicate for safety purposes.

This HTML version of FS-1037C was last generated on Fri Aug 23 00:22:38 MDT 1996