47 CFR Ch. I (10–1–12 Edition) § 101.3

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§ 101.3 47 CFR Ch. I (10–1–12 Edition)

Titles I through III of the Communica- This power is specified by the Commis- tions Act of 1934, as amended, which sion in the station’s authorization. vest authority in the Federal Commu- Automatic Transmitter Power Control nications Commission to regulate com- (ATPC). ATPC is a feature of a digital mon carriers of interstate and foreign microwave radio system that adjusts communications, to regulate radio the transmitter output power. ATPC transmissions and issue licenses for allows the transmitter to operate at radio stations, and to regulate all less than maximum power for most of interstate and foreign communications the time. In a radio employing ATPC, by wire and radio necessary to the ac- the transmit power is reduced during complishment of the purposes of the normal operation conditions. When the Act. receiver detects a reduction in signal [61 FR 26677, May 28, 1996, as amended at 62 level, a control signal is sent to the far FR 23163, Apr. 29, 1997; 63 FR 68981, Dec. 14, end transmitter, instructing it to in- 1998; 65 FR 59357, Oct. 5, 2000] crease the power output to compensate for the signal reduction. The power § 101.3 Definitions. output is limited to the licensed (max- As used in this part: imum) transmit power. Guidelines for 24 GHz Service. A fixed point-to-point, use of ATPC are set forth in the TIA point-to-multipoint, and multipoint- Telecommunications Systems Bulletin to-multipoint radio system in the TSB 10, ‘‘Interference Criteria for 24.25–24.45 GHz band and in the 25.05– Microwave Systems (TSB 10).’’ 25.25 GHz band consisting of a fixed Bandwidth occupied by an emission. main (nodal) station and a number of The band of frequencies comprising 99 fixed user terminals. This service may percent of the total radiated power ex- encompass any digital fixed service. tended to include any discrete fre- Antenna power gain. The ratio of the quency on which the power is at least maximum radiation intensity to that 0.25 percent of the total radiated of an isotropic (omnidirectional) radi- power. ator in the far field of its main (for- Bit rate. The rate of transmission of ward direction) lobe. information in binary (two state) form Antenna power input. The radio fre- in bits per unit time. quency peak or RMS power, as the case may be, supplied to the antenna from Carrier. In a frequency stabilized sys- the antenna transmission line and its tem, the sinusoidal component of a associated impedance matching net- modulated wave whose frequency is work. independent of the modulating wave; or Antenna structure. The antenna, its the output of a transmitter when the supporting structure and anything at- modulating wave is made zero; or a tached to it. wave generated at a point in the trans- Assigned frequency. The center of the mitting system and subsequently mod- frequency band assigned to a station. ulated by the signal; or a wave gen- Assigned frequency bandwidth. The erated locally at the receiving ter- frequency band within which the emis- minal which when combined with the sion of a station is authorized; the side bands in a suitable detector, pro- width of the band equals the necessary duces the modulating wave. bandwidth plus twice the absolute Carrier frequency. The output of a value of the frequency tolerance. transmitter when the modulating wave Authorized bandwidth. The maximum is made zero. bandwidth authorized to be used by a Central office. A landline termination station as specified in the station li- center used for switching and inter- cense. (See § 2.202 of this chapter) connection of public message commu- Authorized frequency. The frequency, nication circuits. or frequency range, assigned to a sta- Common carrier fixed point-to-point tion by the Commission and specified microwave service. A common carrier in the instrument of authorization. public radio service rendered on micro- Authorized power. The maximum wave frequencies by fixed and tem- power a station is permitted to use. porary fixed stations between points

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that lie within the United States or be- in accordance with a digital signal, tween points to its possessions or to e.g., one consisting of coded pulses or points in Canada or Mexico. states. Communication common carrier. Any Drop point. A term used in the point- person engaged in rendering commu- to-point microwave radio service to nication service for hire to the public. designate a terminal point where serv- Control point. An operating position ice is rendered to a subscriber. at which an operator responsible for Earth station. A station located either the operation of the transmitter is sta- on the Earth’s surface or within the tioned and which is under the control major portion of Earth’s atmosphere and supervision of the licensee. and intended for communication: Control station. A fixed station, the (1) With one or more space stations; transmissions of which are used to con- or trol automatically the emissions or op- (2) With one or more stations of the erations of a radio station, or a remote same kind by means of one or more re- base station transmitter. flecting satellites or other objects in Coordination area. The area associ- space. ated with a station outside of which Effective Radiated Power (ERP). The another station sharing the same or product of the power supplied to the adjacent frequency band neither causes antenna and its gain relative to a half- nor is subject to interfering emissions wave dipole in a given direction. greater than a permissible level. Equivalent Isotropically Radiated Coordination contour. The line enclos- Power (EIRP). The product of the power ing the coordination area. supplied to the antenna and the an- Coordination distance. The distance on tenna gain in a given direction relative a given azimuth from a station beyond to an isotropic antenna. which another station neither causes Exchange. A unit of a communication nor is subject to interfering emissions company or companies for the adminis- greater than a permissible level. tration of communication service in a Digital Electronic Message Nodal Sta- specified area, which usually embraces tion. A fixed point-to-multipoint radio a city, town, or village and its envi- station in a Digital Electronic Message rons, and consisting of one or more Service providing two-way communica- central offices, together with the asso- tion with Digital Electronic Message ciated plant, used in furnishing com- User Stations. munication service in that area. Digital Electronic Message Service. A Exchange area. The geographic area two-way end-to-end fixed radio service included within the boundaries of an utilizing digital termination systems exchange. for the exchange of digital information Fixed satellite earth station. An earth in the frequency bands 10,550–10,680 station intended to be used at a speci- MHz, 18,820–18,920 MHz, and 19,160–19,260 fied fixed point. MHz. This service may also make use Fixed relay station. A fixed station as- of point-to-point microwave facilities, sociated with one or more stations, es- satellite facilities or other communica- tablished to receive radio signals di- tions media to interconnect digital ter- rected to it and to retransmit them mination systems to comprise a net- automatically on a fixed service fre- work. quency. Digital Electronic Message User Station. Fixed service. A radio communica- Any one of the fixed microwave radio tions service between specified fixed stations located at users’ premises, points. lying within the coverage area of a Fixed station. A station in the fixed Digital Electronic Message Nodal Sta- service. tion, and providing two-way digital Frequency tolerance. The maximum communications with the Digital Elec- permissible departure by the center tronic Message Nodal Station. frequency of the frequency band occu- Digital modulation. The process by pied by an emission from the assigned which some characteristic (frequency, frequency or, by the characteristic fre- phase, amplitude or combinations quency of an emission from the ref- thereof) of a carrier frequency is varied erence frequency.

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NOTE: The frequency tolerance is expressed of receiving one-way communications as a percentage or in Hertzs. from or providing two-way communica- General communication. Two-way tions with the Local Multipoint Dis- voice communication, through a base tribution Service Hub Station. station, between: Local Multipoint Distribution Service (1) A common carrier land mobile or System. A fixed point-to-point or point- airborne station and a landline tele- to-multipoint radio system consisting phone station connected to a public of Local Multipoint Distribution Serv- message landline telephone system; ice Hub Stations and their associated (2) Two common carrier land mobile Local Multipoint Distribution Service stations; Subscriber Stations. (3) Two common carrier airborne sta- Local television transmission service. A tions; public radio communication service for (4) A common carrier land mobile the transmission of television material station and a common carrier airborne and related communications. station. Long haul system. A microwave sys- Harmful interference. Interference tem licensed under this part in which that endangers the functioning of a the longest radio circuit of tandem radionavigation service or of other radio paths exceeds 402 kilometers. safety services or seriously degrades, Master station. A station in a multiple obstructs or repeatedly interrupts a address radio system that controls, ac- radiocommunication service operating tivates or interrogates four or more re- in accordance with these regulations. mote stations. Master stations per- Internodal link. A point-to-point com- forming such functions may also re- munications link used to provide com- ceive transmissions from remote sta- munications between nodal stations or tions. to interconnect nodal stations to other Message center. The point at which communications media. messages from members of the public Landing area. A landing area means are accepted by the carrier for trans- any locality, either of land or water, mission to the addressee. including airports and intermediate Microwave frequencies. As used in this landing fields, which is used, or ap- part, this term refers to frequencies of proved for use for the landing and take- 890 MHz and above. off of aircraft, whether or not facilities Microwave link. A link is defined as a are provided for the shelter, servicing, simplex communications circuit be- or repair of aircraft, or for receiving or tween two points utilizing a single fre- discharging passengers or cargo. quency/polarization assignment. A du- Local Multipoint Distribution Service plex communications circuit would re- Backbone Link. A point-to-point radio quire two links, one link in each direc- service link in a Local Multipoint Dis- tion. tribution Service System that is used Miscellaneous common carriers. Com- to interconnect Local Multipoint Dis- munications common carriers that are tribution Service Hub Stations with not engaged in the business of pro- each other or with the public switched viding either a public landline message telephone network. telephone service or public message Local Multipoint Distribution Service telegraph service. Hub Station. A fixed point-to-point or Mobile earth station. An earth station point-to-multipoint radio station in a intended to be used while in motion or Local Multipoint Distribution Service during halts at unspecified points. System that provides one-way or two- Mobile service. A radio communica- way communication with Local tion service between mobile and land Multipoint Distribution Service Sub- stations or between mobile stations. scriber Stations. Mobile station. A station in the mo- Local Multipoint Distribution Service bile service intended to be used while Subscriber Station. Any one of the fixed in motion or during halts at unspec- microwave radio stations located at ified points. users’ premises, lying within the cov- Multichannel Video Distribution and erage area of a Local Multipoint Dis- Data Service (MVDDS). A fixed micro- tribution Service Hub Station, capable wave service licensed in the 12.2–12.7

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GHz band that provides various wire- or back-to-back parabolic or horn an- less services. Mobile and aeronautical tennas. operations are prohibited. Path length. The total distance of a Multiple address system (MAS). A path from the transmit to the receive point-to-multipoint or point-to-point antenna, inclusive of all passive re- radio communications system used for peaters, if any. either one-way or two-way trans- Periscope antenna system. An antenna missions that operates in the 928/952/956 system which involves the use of a pas- MHz, the 928/959 MHz or the 932/941 MHz sive reflector to deflect radiation from bands in accordance with § 101.147. or to a directional transmitting or re- National Spatial Reference System. The ceiving antenna which is oriented National Spatial Reference System vertically or near vertically. (NSRS) is the name given to all Geo- Prior coordination. A bilateral process detic Control information contained in conducted prior to filing applications the National Geodetic Survey (NGS) which includes the distribution of the Data Base. This includes: A, B, First, Second, and Third Order horizontal and technical parameters of a proposed vertical control observed by NGS as radio system to potentially affected well as data submitted by other agen- parties for their evaluation and timely cies (i.e., USGS, BLM, States, Coun- response. ties, Cities, and private surveying orga- Private carrier. An entity licensed in nizations). the private service and authorized to Necessary bandwidth. For a given provide communications service to class of emission, the width of the fre- other private service eligibles on a quency band that is just sufficient to commercial basis. ensure the transmission of information Private line service. A service whereby at the rate and with the quality re- facilities for communication between quired under specified conditions. The two or more designated points are set necessary bandwidth may be calculated aside for the exclusive use or avail- using the formulas in § 2.202 of this ability for use of a particular customer chapter. and authorized users during stated pe- Nodal station. The central or control- riods of time. ling stations in a microwave radio sys- Private operational fixed point-to-point tem operating on point-to-multipoint microwave service. A private radio serv- or multipoint-to-multipoint fre- ice rendered by fixed and temporary quencies with one or more user sta- fixed stations on microwave fre- tions or internodal links. quencies for the exclusive use or avail- Occupied bandwidth. The width of a ability for use of the licensee or other frequency bandwidth such that, below eligible entities for communication be- the lower and above the upper fre- tween two or more designated points. quency limits, the mean powers emit- Service may be provided between ted are each equal to a specified per- points within the United States, points centage, B/2 of the total mean power of within United States possessions, or a given emission. Unless otherwise between the United States and points specified by the CCIR for the appro- in Canada or Mexico. priate class of emission, the value of B/ Public correspondence. Any tele- 2 should be taken as 0.5%. communication which the offices and NOTE: The percentage of the total power stations must, by reason of their being outside the occupied bandwidth is rep- at the disposal of the public, accept for resented by B. transmission. Operational fixed station. A private Public message service. A service fixed station not open to public cor- whereby facilities are offered to the respondence. public for communication between all Passive repeater. A re-radiation device points served by a carrier or by inter- associated with a transmitting/receiv- connected carriers on a non-exclusive ing antenna system that re-directs message by message basis, contem- intercepted radiofrequency energy. For plating a separate connection for each example, it may consist of reflector(s) occasion of use.

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Radio station. A separate transmitter radio paths does not exceed 402 kilo- or a group of transmitters under simul- meters. taneous common control, including the Signal booster. A device at a fixed lo- accessory equipment required for car- cation which automatically receives, rying on a radiocommunication serv- amplifies, and retransmits on a one- ice. way or two-way basis, the signals re- Radiocommunication. Telecommuni- ceived from base, fixed, mobile, and cation by means of radio waves. portable stations, with no change in Rated power output. The maximum frequency or authorized bandwidth. A radio frequency power output capa- signal booster may be either bility (peak or average power) of a narrowband (Class A), in which case transmitter, under optimum conditions the booster amplifies only those dis- of adjustment and operation, specified crete frequencies intended to be re- by its manufacturer. transmitted, or broadband (Class B), in Record communication. Any trans- which case all signals within the mission of intelligence which is re- passband of the signal booster filter are duced to visual record form at the amplified. point of reception. Signaling communication. One-way Reference frequency. A frequency hav- communications from a base station to ing a fixed and specified position with a mobile or fixed receiver, or to multi- respect to the assigned frequency. The point mobile or fixed receivers by audi- displacement of this frequency with re- ble or subaudible means, for the pur- spect to the assigned frequency has the pose of actuating a signaling device in same absolute value and sign that the the receiver(s) or communicating infor- displacement of the characteristic fre- mation to the receiver(s), whether or quency has with respect to the centre not the information is to be retained in of the frequency band occupied by the record form. emission. Standby transmitter. A transmitter in- Relay station. A fixed station used for stalled and maintained for use in lieu the reception and retransmission of the signals of another station or stations. of the main transmitter only during Remote station. A fixed station in a periods when the main transmitter is multiple address radio system that out of service for maintenance or retransmits one-way to one or more cen- pair. tral receive sites, controls a master Symbol rate. Modulation rate in station, or is controlled, activated or bauds. This rate may be higher than interrogated by, and may respond to, a the transmitted bit rate as in the case master station. of coded pulses or lower as in the case Repeater station. A fixed station es- of multilevel transmission. tablished for the automatic retrans- Telegraphy. A form of telecommuni- mission of radiocommunications re- cation which is concerned in any proc- ceived from one or more mobile sta- ess providing transmission and repro- tions and directed to a specified loca- duction at a distance of documentary tion; for public mobile radio oper- matter, such as written or printed mat- ations, a fixed station that automati- ter or fixed images, or the reproduction cally retransmits the mobile commu- at a distance of any kind of informa- nications and/or transmitter information in such a form. Unless otherwise tion about the base station, along a specified, telegraphy means a form of fixed point-to-point link between the telecommunication for the trans- base station and the central station. mission of written matter by the use of Secondary operations. Radio commu- signal code. nications which may not cause inter- Telemetering. The use of tele- ference to operations authorized on a communication for automatic indi- primary basis and which are not pro- cating or recording measurements at a tected from interference from these distance from the measuring instru- primary operations. ment. Short haul system. A microwave sys- Telephony. A form of telecommuni- tem licensed under this part in which cation set up for the transmission of the longest radio circuit of tandem speech, or in some cases, other sounds.

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Television. A form of telecommuni- Subpart B—Applications and cation for transmission of transient Licenses images of fixed or moving objects. Temporary fixed station. A station es- GENERAL FILING REQUIREMENTS tablished in a non-permanent mode (temporary) at a specified location for § 101.4 Transition plan. a short period of time, ranging up to (a) All systems subject to parts 21 one year. Temporary-fixed operations and 94 of this chapter in effect as of are itinerant in nature, and are not to July 31, 1996, which are licensed or be confused with mobile-type oper- which are proposed in an application ations. on file, as of July 31, 1996, are subject Universal Licensing System (ULS). The to the requirements under part 21 or consolidated database, application fil- part 94 of this chapter as contained in ing system and processing system for the CFR edition revised as of October 1, all Wireless Telecommunications Serv- 1995 and amended in the FEDERAL REG- ices. The ULS offers Wireless Tele- ISTER through July 31, 1996, as applica- communications Bureau (WTB) appli- ble, indefinitely. cants and the general public electronic (b) For purposes of this section, a filing of all applications requests, and ‘‘system’’ shall include: full public access to all WTB licensing (1) The originally licensed system; data. (2) Any modification to the original User or subscriber station. The sta- system involving a change in antenna tion(s) in a microwave radio system op- azimuth, antenna beam width, channel erating at the users’ premises on point- loading, emission, station location, an- to-multipoint or multipoint-to- tenna height, authorized power, or au- multipoint frequencies and commu- thorized frequencies; nicating with one or more nodal sta- (3) Additional links constructed to tions. complete an integrated communica- Video entertainment material. The tions network; or transmission of a video signal (e.g. (4) Operationally connecting new fa- United States Standard Monochrome cilities and/or frequencies. or National Television Systems Com- (c) All radio frequency devices au- mittee 525-line television) and an asso- thorized pursuant to part 2 of this ciated audio signal which is designed chapter as being in compliance with primarily to amuse or entertain, such applicable part 21 or part 94 of this as movies and games. chapter in effect as of July 31, 1996, requirements can be used indefinitely [61 FR 26677, May 28, 1996, as amended at 61 with systems licensed under this part FR 29693, June 12, 1996; 61 FR 31052, June 19, 101. 1996; 61 FR 44181, Aug. 28, 1996; 62 FR 23163, Apr. 29, 1997; 63 FR 68981, Dec. 14, 1998; 65 FR [61 FR 26677, May 28, 1996, as amended at 65 17448, Apr. 3, 2000; 65 FR 38326, June 20, 2000; FR 38326, June 20, 2000] 65 FR 59357, Oct. 5, 2000; 67 FR 43037, June 26, 2002; 68 FR 4955, Jan. 31, 2003] § 101.5 Station authorization required.

EFFECTIVE DATE NOTE: At 77 FR 54432, (a) [Reserved] Sept. 5, 2012, § 101.3 was amended by adding (b) A separate application form must the definition for ‘‘Payload Capacity’’, effec- be filed electronically via ULS for each tive Oct. 5, 2012. For the convenience of the Digital Electronic Message Service added text is set forth as follows: (DEMS) Nodal Station. No license is re- § 101.3 Definitions. quired for a DEMS User Station or for a Multiple Address System (MAS) remote or mobile station. Authority for a * * * * * DEMS Nodal Station licensee to serve Payload Capacity. The bit rate available for a specific number of user stations to be transmission of data over a licensed in the name of the carrier radiocommunication system, excluding over- must be requested on FCC Form 601 head data generated by the system. filed for the DEMS Nodal Station. Au- thority for any number of MAS * * * * * remotes and authority to serve MAS

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