§  5.5   Definition of terms.

   For the purpose of this part, the following definitions shall be
   applicable. For other definitions, refer to part 2 of this chapter
   (Frequency Allocations and Radio Treaty Matters; General Rules and
   Regulations).

   Authorized frequency. The frequency assigned to a station by the
   Commission and specified in the instrument of authorization.

   Authorized power. The power assigned to a radio station by the
   Commission and specified in the instrument of authorization.

   Experimental radio service. A service in which radio waves are employed
   for purposes of experimentation in the radio art or for purposes of
   providing essential communications for research projects that could not
   be conducted without the benefit of such communications.

   Experimental station. A station utilizing radio waves in experiments
   with a view to the development of science or technique.

   Fixed service. A radiocommunication service between specified fixed
   points.

   Fixed station. A station in the fixed service.

   Harmful interference. Any radiation or induction that endangers the
   functioning of a radionavigation or safety service, or obstructs or
   repeatedly interrupts a radio service operating in accordance with the
   Table of Frequency Allocations and other provisions of part 2 of this
   chapter.

   Landing area. As defined by 49 U.S.C. 40102(a)(28) of the Civil
   Aeronautics Act of 1938, as amended, any locality, either of land or
   water, including airdromes and intermediate landing fields, that is
   used, or intended to be used, for the landing and take-off of aircraft,
   whether or not facilities are provided for the shelter, servicing, or
   repair of aircraft, or for receiving or discharging passengers or
   cargo.

   Land station. A station in the mobile service not intended for
   operation while in motion.

   Mobile service. A radiocommunication service between mobile and land
   stations, or between mobile stations.

   Mobile station. A station in a mobile service intended to be used while
   in motion or during halts at unspecified points.

   Person. An individual, partnership, association, joint stock company,
   trust, or corporation.

   Public correspondence. Any telecommunication that offices and stations,
   by reason of their being at the disposal of the public, must accept for
   transmission.

   Radio service. An administrative subdivision of the field of
   radiocommunication. In an engineering sense, the subdivisions may be
   made according to the method of operation, as, for example, mobile
   service and fixed service. In a regulatory sense, the subdivisions may
   be descriptive of particular groups of licensees, as, for example, the
   groups of persons licensed under this part.

   Station authorization. Any license or special temporary authorization
   issued by the Commission.

Subpart B—Applications and Licenses