Sec.  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