Sec.  27.4   Terms and definitions.

   

   Advanced wireless service (AWS). A radiocommunication service licensed
   pursuant to this part for the frequency bands specified in Sec. 27.5(h).

   Affiliate.  This  term  shall  have  the  same  meaning  as  that  for
   "affiliate" in part 1, Sec. 1.2110(b)(5) of this chapter.

   Assigned  frequency.  The  center  of the frequency band assigned to a
   station.

   Attended  operation.  Operation of a station by a designated person on
   duty at the place where the transmitting apparatus is located with the
   transmitter in the person's plain view.

   Authorized  bandwidth.  The  maximum  width of the band of frequencies
   permitted  to  be used by a station. This is normally considered to be
   the necessary or occupied bandwidth, whichever is greater.

   Average  terrain.  The  average  elevation of terrain between 3 and 16
   kilometers from the antenna site.

   Base station. A land station in the land mobile service.

   Booster  service  area.  A  geographic  area  to  be  designated by an
   applicant  for  a  booster  station,  within which the booster station
   shall  be  entitled to protection against interference as set forth in
   this part. The booster service area must be specified by the applicant
   so  as  not  to  overlap the booster service area of any other booster
   authorized to or proposed by the applicant. However, a booster station
   may  provide  service  to receive sites outside of its booster service
   area, at the licensee's risk of interference. The booster station must
   be  capable  of  providing  substantial  service within the designated
   booster service area.

   Broadband   Radio   Service  (BRS).  A  radio  service  using  certain
   frequencies in the 2150-2162 and 2496-2690 MHz bands which can be used
   to   provide  fixed  and  mobile  services,  except  for  aeronautical
   services.

   Broadcast  services. This term shall have the same meaning as that for
   "broadcasting"  in  section  3(6)  of  the Communications Act of 1934,
   i.e.,  "the  dissemination  of  radio  communications  intended  to be
   received  by  the  public,  directly  or  by the intermediary of relay
   stations." 47 U.S.C. 153(6).

   Documented  complaint.  A  complaint  that  a  party is suffering from
   non-consensual  interference.  A  documented  complaint must contain a
   certification  that  the complainant has contacted the operator of the
   allegedly  offending facility and tried to resolve the situation prior
   to  filing.  The  complaint  must  then  specify  the  nature  of  the
   interference,  whether  the  interference is constant or intermittent,
   when  the interference began and the site(s) most likely to be causing
   the  interference.  The complaint should be accompanied by a videotape
   or  other  evidence  showing  the  effects  of  the  interference. The
   complaint  must  contain  a  motion  for a temporary order to have the
   interfering  station  cease  transmitting. The complaint must be filed
   with  the  Secretary's  office  and  served on the allegedly offending
   party.

   Educational  Broadband  Service  (EBS). A fixed or mobile service, the
   licensees   of   which  are  educational  institutions  or  non-profit
   educational  organizations, and intended primarily for video, data, or
   voice  transmissions  of  instructional,  cultural, and other types of
   educational material to one or more receiving locations.

   Effective  Radiated Power (ERP) (in a given direction). The product of
   the power supplied to the antenna and its gain relative to a half-wave
   dipole in a given direction.

   Equivalent  Isotropically  Radiated  Power  (EIRP). The product of the
   power  supplied  to  the  antenna  and  the  antenna  gain  in a given
   direction relative to an isotropic antenna.

   Fixed  service.  A radio communication service between specified fixed
   points.

   Fixed station. A station in the fixed service.

   Guard band manager. The term Guard band manager refers to a commercial
   licensee in the 746-747 MHz, 762-764 MHz, 776-777 MHz, and 792-794 MHz
   bands  that  functions  solely as a spectrum broker by subdividing its
   licensed  spectrum  and  making  it  available  to system operators or
   directly  to  end  users for fixed or mobile communications consistent
   with  Commission  Rules.  A Guard band manager is directly responsible
   for  any interference or misuse of its licensed frequency arising from
   its use by such non-licensed entities.

   Land  mobile  service. A mobile service between base stations and land
   mobile stations, or between land mobile stations.

   Land  mobile  station.  A  mobile  station  in the land mobile service
   capable  of surface movement within the geographic limits of a country
   or continent.

   Land  station. A station in the mobile service not intended to be used
   while in motion.

   Lower  Band  Segment  (LBS). Segment of the BRS/EBS band consisting of
   channels in the frequencies 2496-2572 MHz.

   Middle  Band  Segment (MBS). Segment of the BRS/EBS band consisting of
   channels in the frequencies 2572-2614 MHz.

   Mobile  service. A radio communication service between mobile and land
   stations, or between mobile stations.

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

   National  Geodetic  Reference  System  (NGRS).  The  name given to all
   geodetic  control data contained in the National Geodetic Survey (NGS)
   data  base.  (Source:  National  Geodetic  Survey,  U.S. Department of
   Commerce)

   Point-to-point Broadband station. A Broadband station that transmits a
   highly directional signal from a fixed transmitter location to a fixed
   receive location.

   Portable   device.   Transmitters   designed  to  be  used  within  20
   centimeters of the body of the user.

   Radiodetermination. The determination of the position, velocity and/or
   other  characteristics  of  an object, or the obtaining of information
   relating  to  these parameters, by means of the propagation properties
   of radio waves.

   Radiolocation.  Radiodetermination  used for purposes other than those
   of radionavigation.

   Radiolocation land station. A station in the radiolocation service not
   intended to be used while in motion.

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

   Radionavigation.   Radiodetermination   used   for   the   purpose  of
   navigation, including obstruction warning.

   Remote  control.  Operation  of  a station by a designated person at a
   control  position  from which the transmitter is not visible but where
   suitable  control  and  telemetering circuits are provided which allow
   the  performance of the essential functions that could be performed at
   the transmitter.

   Satellite   Digital   Audio   Radio   Service   (satellite   DARS).  A
   radiocommunication  service  in which compact disc quality programming
   is digitally transmitted by one or more space stations.

   Sectorization.  The  use of an antenna system at an broadband station,
   booster  station  and/or  response  station  hub  that  is  capable of
   simultaneously transmitting multiple signals over the same frequencies
   to  different  portions  of  the  service  area  and/or simultaneously
   receiving  multiple  signals  over the same frequencies from different
   portions of the service area.

   Studio  to transmitter link (STL). A directional path used to transmit
   a signal from a station's studio to its transmitter.

   Temporary  fixed  broadband  station. A broadband station used for the
   transmission  of  material  from  temporary  unspecified  points  to a
   broadband station.

   Time  division  multiple  access  (TDMA).  A multiple access technique
   whereby  users share a transmission medium by being assigned and using
   (one-at-a-time)  for  a  limited  number  of time division mulitplexed
   channels;  implies  that  several  transmitters  use  one  channel for
   sending several bit streams.

   Time division multiplexing (TDM). A multiplexing technique whereby two
   or  more  channels  are derived from a transmission medium by dividing
   access  to  the  medium  into  sequential  intervals. Each channel has
   access to the entire bandwidth of the medium during its interval. This
   implies  that  one  transmitter  uses  one channel to send several bit
   streams of information.

   Unattended  operation.  Operation  of  a  station  by  automatic means
   whereby  the  transmitter  is  turned  on  and  off  and  performs its
   functions without attention by a designated person.

   Universal  Licensing  System.  The Universal Licensing System (ULS) is
   the  consolidated  database, application filing system, and processing
   system for all Wireless Radio Services. ULS supports electronic filing
   of  all applications and related documents by applicants and licensees
   in  the  Wireless  Radio  Services,  and  provides  public  access  to
   licensing information.

   Upper  Band  Segment  (UBS). Segment of the BRS/EBS band consisting of
   channels in the frequencies 2614-2690 MHz

   Wireless communications service. A radiocommunication service licensed
   pursuant to this part for the frequency bands specified in Sec. 27.5.

   [ 62 FR 9658 , Mar. 3, 1997, as amended at  62 FR 16497 , Apr. 7, 1997;  63 FR 68954 , Dec. 14, 1998;  65 FR 3145 , Jan. 20, 2000;  65 FR 17602 , Apr.
   4, 2000;  67 FR 41854 , June 20, 2002;  68 FR 66286 , Nov. 25, 2003;  69 FR 5714 , Feb. 6, 2004;  69 FR 72031 , Dec. 10, 2004]