Aeronautical Mobile service
What is Aeronautical Mobile service? ( Answer to one more question from the question Bank for RTR (A) part 2 exam)
you will also find this answer in the list of Definitions used in RTR (A) exam that I had uploaded earlier, however as a easy reckoner I am posting this separately.
Aeronautical Mobile Service: A mobile service between aeronautical stations and aircraft stations, or between aircraft stations in which survival craft stations may participate; emergency position-indicating radiobeacon stations may also participate in this service on designated distress and emergency frequencies.
Aeronautical Mobile (R) Service: A aeronautical mobile service reserved for communications relating to safety and regularity of flight, primarily along national or international civil air routes. [note: (R) = “route”].
Aeronautical Mobile (OR) Service: A aeronautical service intended for communications, including those relating flight coordination, primarily outside national or international civil air routes. [note: (OR) = “off-route”].