Federal Communications Commission § 87.5

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Federal Communications Commission § 87.5 Federal Communications Commission § 87.5 notification process that must be com- bile earth stations are located on board pleted before filing certain antenna aircraft. structure registration applications. Aeronautical mobile service. A mobile (f) Part 80 contains rules for the mar- service between aeronautical stations itime services. Certain maritime fre- and aircraft stations, or between air- quencies are available for use by air- craft stations, in which survival craft craft stations for distress and safety, stations may also participate; emer- public correspondence and operational gency position-indicating radiobeacon communications. stations may also participate in this service on designated distress and [53 FR 28940, Aug. 1, 1988, as amended at 77 emergency frequencies. FR 3955, Jan. 26, 2012] Aeronautical multicom station. An § 87.5 Definitions. aeronautical station used to provide communications to conduct the activi- Aeronautical advisory station (unicom). ties being performed by, or directed An aeronautical station used for advi- from, private aircraft. sory and civil defense communications Aeronautical radionavigation service. A primarily with private aircraft sta- radionavigation service intended for tions. the benefit and for the safe operation Aeronautical enroute station. An aero- of aircraft. nautical station which communicates Aeronautical search and rescue station. with aircraft stations in flight status An aeronautical station for commu- or with other aeronautical enroute sta- nication with aircraft and other aero- tions. nautical search and rescue stations Aeronautical fixed service. A pertaining to search and rescue activi- radiocommunication service between ties with aircraft. specified fixed points provided pri- Aeronautical station. A land station in marily for the safety of air navigation the aeronautical mobile service. In cer- and for the regular, efficient and eco- tain instances an aeronautical station nomical operation of air transport. A may be located, for example, on board station in this service is an aero- ship or on a platform at sea. nautical fixed station. Aeronautical utility mobile station. A Aeronautical Mobile Off-Route (OR) mobile station used on airports for Service. An aeronautical mobile service communications relating to vehicular intended for communications, includ- ground traffic. ing those relating to flight coordina- Air carrier aircraft station. A mobile tion, primarily outside national or station on board an aircraft which is international civil air routes.(RR) engaged in, or essential to, the trans- Aeronautical Mobile Route (R) Service. portation of passengers or cargo for An aeronautical mobile service re- hire. served for communications relating to Aircraft earth station (AES). A mobile safety and regularity of flight, pri- earth station in the aeronautical mo- marily along national or international bile-satellite service located on board civil air routes.(RR) an aircraft. Aeronautical Mobile-Satellite Off-Route Aircraft station. A mobile station in (OR) Service. An aeronautical mobile- the aeronautical mobile service other satellite service intended for commu- than a survival craft station, located nications, including those relating to on board an aircraft. flight coordination, primarily outside Airport. An area of land or water that national and international civil air is used or intended to be used for the routes.(RR) landing and takeoff of aircraft, and in- Aeronautical Mobile-Satellite Route (R) cludes its buildings and facilities, if Service. An aeronautical mobile-sat- any. ellite service reserved for communica- Airport control tower (control tower) tions relating to safety and regularity station. An aeronautical station pro- of flights, primarily along national or viding communication between a con- international civil air routes.(RR) trol tower and aircraft. Aeronautical Mobile-Satellite Service. A Automatic dependent surveillance— mobile-satellite service in which mo- broadcast (ADS–B) Service. Broadcast 179 VerDate Mar<15>2010 11:45 Dec 06, 2012 Jkt 226209 PO 00000 Frm 00189 Fmt 8010 Sfmt 8010 Q:\47\47V5.TXT ofr150 PsN: PC150 § 87.5 47 CFR Ch. I (10–1–12 Edition) transmissions from aircraft, supporting Expendable Launch Vehicle (ELV). A aircraft-to-aircraft or aircraft-to- booster rocket that can be used only ground surveillance applications, in- once to launch a payload, such as a cluding position reports, velocity vec- missile or space vehicle. tor, intent and other relevant informa- Flight Information Service-Broadcast tion about the aircraft. (FIS-B). A broadcast service provided Automatic terminal information service- for the purpose of giving advice and in- broadcast (ATIS-B). The automatic pro- formation useful for the safe and effi- vision of current, routine information cient conduct of flights. to arriving and departing aircraft Flight test aircraft station. An aircraft throughout a 24-hour period or a speci- station used in the testing of aircraft fied portion thereof. or their major components. Automatic weather observation station Flight test land station. An aero- (AWOS) or automatic surface observation nautical station used in the testing of station (ASOS). A land station located aircraft or their major components. at an airport and used to automati- Glide path station. A radionavigation cally transmit weather information to land station which provides vertical aircraft. guidance to aircraft during approach to Aviation service organization. Any landing. business firm which maintains facili- Instrument landing system (ILS). A ties at an airport for the purposes of radionavigation system which provides one or more of the following general aircraft with horizontal and vertical aviation activities: (a) Aircraft fueling; guidance just before and during landing (b) aircraft services (e.g. parking, stor- and, at certain fixed points, indicates age, tie-downs); (c) aircraft mainte- the distance to the reference point of nance or sales; (d) electronics equip- landing. ment maintenance or sales; (e) aircraft Instrument landing system glide path. A rental, air taxi service or flight in- system of vertical guidance embodied structions; and (f) baggage and cargo in the instrument landing system handling, and other passenger or which indicates the vertical deviation freight services. of the aircraft from its optimum path Aviation services. Radio-communica- of descent. tion services for the operation of air- Instrument landing system localizer. A craft. These services include aero- system of horizontal guidance em- nautical fixed service, aeronautical bodied in the instrument landing sys- mobile service, aeronautical radio- tem which indicates the horizontal de- determination service, and secondarily, viation of the aircraft from its opti- the handling of public correspondence mum path of descent along the axis of on frequencies in the maritime mobile the runway or along some other path and maritime mobile satellite services when used as an offset. to and from aircraft. Land station. A station in the mobile Aviation support station. An aero- service not intended to be used while in nautical station used to coordinate motion. aviation services with aircraft and to Localizer station. A radionavigation communicate with aircraft engaged in land station which provides horizontal unique or specialized activities. (See guidance to aircraft with respect to a subpart K) runway center line. Differential GPS (DGPS). A system Marker beacon station. A radio- which transmits corrections to the navigation land station in the aero- GPS derived position. nautical radionavigation service which Emergency locator transmitter (ELT). A employs a marker beacon. A marker transmitter of an aircraft or a survival beacon is a transmitter which radiates craft actuated manually or automati- vertically a distinctive pattern for pro- cally that is used as an alerting and lo- viding position information to aircraft. cating aid for survival purposes. Mean power (of a radio transmitter). Emergency locator transmitter (ELT) The average power supplied to the an- test station. A land station used for tenna transmission line by a trans- testing ELTs or for training in the use mitter during an interval of time suffi- of ELTs. ciently long compared with the lowest 180 VerDate Mar<15>2010 11:45 Dec 06, 2012 Jkt 226209 PO 00000 Frm 00190 Fmt 8010 Sfmt 8010 Q:\47\47V5.TXT ofr150 PsN: PC150 Federal Communications Commission § 87.5 frequency encountered in the modula- bile station to determine its bearing or tion taken under normal operating direction in relation to the radiobeacon conditions. station. Microwave landing system. An instru- Radiodetermination service. A ment landing system operating in the radiocommuncation service which uses microwave spectrum that provides lat- radiodetermination. Radiodetermin- eral and vertical guidance to aircraft ation is the determination of the posi- having compatible avionics equipment. tion, velocity and/or other characteris- Mobile service. A radiocommunication tics of an object, or the obtaining of in- service between mobile and land sta- formation relating to these param- tions, or between mobile stations. A eters, by means of the propagation of mobile station is intended to be used radio waves. A station in this service is while in motion or during halts at un- called a radiodetermination station. specified points. Radiolocation service. A radio- Operational fixed station. A fixed sta- determination service for the purpose tion, not open to public
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