[Code of Federal Regulations]

[Title 47, Volume 2]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 47CFR27.4]



[Page 289-291]

 

                       TITLE 47--TELECOMMUNICATION

 

                         COMMISSION (CONTINUED)

 

PART 27_MISCELLANEOUS WIRELESS COMMUNICATIONS SERVICES--Table of Contents

 

                      Subpart A_General Information

 

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



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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



[[Page 291]]



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]