A radio communications service use in radio regulation between specified fixed points provided primarily for the safety of air navigation and for the regular efficient and economical air transport. A. Space operation service B. Space service C. Aeronautical mobile service D. Aeronautical fixed service

A radio communications service use in radio regulation between specified fixed points
provided primarily for the safety of air navigation and for the regular efficient and
economical air transport.
A. Space operation service
B. Space service
C. Aeronautical mobile service
D. Aeronautical fixed service
by

1 Answer

Answer :

D. Aeronautical fixed service
by

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