§ 2.1 47 CFR Ch. I (10–1–10 Edition) RADIOFREQUENCY RADIATION EXPOSURE Subpart A—Terminology 2.1091 Radiofrequency radiation exposure evaluation: mobile devices. § 2.1 Terms and definitions. 2.1093 Radiofrequency radiation exposure (a) Where a term or definition ap- evaluation: portable devices. pears in this part of the Commission’s Rules, it shall be the definitive term or Subpart K—Importation of Devices definition and shall prevail throughout Capable of Causing Harmful Interference the Commission’s Rules. 2.1201 Purpose. (b) The source of each definition is 2.1202 Exclusions. indicated as follows: 2.1203 General requirement for entry into CS—Annex to the Constitution of the the U.S.A. International Telecommunication 2.1204 Import conditions. Union (ITU) 2.1205 Filing of required declaration. CV—Annex to the Convention of the 2.1207 Examination of imported equipment. ITU FCC—Federal Communications Com- Subpart L [Reserved] mission Subpart M—Advance Approval of RR—ITU Radio Regulations Subscription TV Transmission Systems (c) The following terms and defini- tions are issued: ADVANCE APPROVAL PROCEDURE Accepted Interference. 1 Interference at 2.1400 Application for advance approval a higher level than defined as permis- under part 73. sible interference and which has been agreed upon between two or more ad- Subpart N—FCC Procedure for Testing ministrations without prejudice to Class A, B and S Emergency Position other administrations. (RR) Indicating Radiobeacons (EPIRBs) Active Satellite. A satellite carrying a station intended to transmit or re- GENERAL transmit radiocommunication signals. 2.1501 Introduction. (RR) 2.1503 Test environment. Active Sensor. A measuring instru- 2.1505 Test instrumentation and equipment. ment in the earth exploration-satellite service or in the space research service ENVIRONMENTAL AND OPERATIONAL TEST PROCEDURES by means of which information is ob- tained by transmission and reception 2.1507 Test frequencies. of radio waves. (RR) 2.1509 Environmental and duration tests. Adaptive System. A 2.1511 Measurements of radiated emissions. radiocommunication system which 2.1513 Measurements of modulation charac- varies its radio characteristics accord- teristics. ing to channel quality. (RR) 2.1515 Spectral measurements. Administration. Any governmental de- DATA RECORDING/REPORTING REQUIREMENTS partment or service responsible for dis- charging the obligations undertaken in 2.1517 Data recording/reporting require- ments. the Constitution of the International Telecommunication Union, in the Con- FIGURE 1 TO SUBPART N—MEASUREMENT SITE vention of the International Tele- FIGURE 2 TO SUBPART N—TYPICAL AUDIO communication Union and in the Ad- WAVEFORM ministrative Regulations. (CS) FIGURE 3 TO SUBPART N—EXAMPLE OF IDEAL EPIRB SPECTRUM Aeronautical Earth Station. An Earth FIGURE 4 TO SUBPART N—EXAMPLE OF EPIRB station in the fixed-satellite service, CARRIER COMPONENT or, in some cases, in the aeronautical mobile-satellite service, located at a AUTHORITY: 47 U.S.C. 154, 302a, 303, and 336, specified fixed point on land to provide unless otherwise noted. SOURCE: 28 FR 12465, Nov. 22, 1963, unless 1 The terms and otherwise noted. permissible interference ac- cepted interference are used in the coordina- EDITORIAL NOTE: Nomenclature changes to tion of frequency assignments between ad- part 2 appear at 63 FR 54077, Oct. 8, 1998. ministrations. 450 VerDate Mar<15>2010 09:35 Dec 08, 2010 Jkt 220200 PO 00000 Frm 00460 Fmt 8010 Sfmt 8010 Y:\SGML\220200.XXX 220200 wwoods2 on DSK1DXX6B1PROD with CFR Federal Communications Commission § 2.1 a feeder link for the aeronautical mo- the benefit and for the safe operation bile-satellite service. (RR) of aircraft. (RR) Aeronautical Fixed Service. A Aeronautical Station. A land station in radiocommunication service between the aeronautical mobile service. specified fixed points provided pri- NOTE: In certain instances, an aeronautical marily for the safety of air navigation station may be located, for example, on and for the regular, efficient and eco- board ship or on a platform at sea. (RR) nomical operation of air transport. (RR) Aircraft Earth Station. A mobile earth station in the aeronautical mobile-sat- Aeronautical Fixed Station. A station ellite service located on board an air- in the aeronautical fixed service. (RR) craft. (RR) Aeronautical Mobile Off-Route (OR) Aircraft Station. A mobile station in Service. An aeronautical mobile service the aeronautical mobile service, other intended for communications, includ- than a survival craft station, located ing those relating to flight coordina- on board an aircraft. (RR) tion, primarily outside national or Allocation (of a frequency band). Entry international civil air routes. (RR) in the Table of Frequency Allocations Aeronautical Mobile Route (R) Service. of a given frequency band for the pur- An aeronautical mobile service re- pose of its use by one or more terres- served for communications relating to trial or space radiocommunication safety and regularity of flight, pri- services or the radio astronomy service marily along national or international under specified conditions. This term civil air routes. (RR) shall also be applied to the frequency Aeronautical Mobile-Satellite Off-Route band concerned. (RR) (OR) Service. An aeronautical mobile- Allotment (of a radio frequency or radio satellite service intended for commu- frequency channel). Entry of a des- nications, including those relating to ignated frequency channel in an agreed flight coordination, primarily outside plan, adopted by a competent con- national and international civil air ference, for use by one or more admin- routes. (RR) istrations for a terrestrial or space Aeronautical Mobile-Satellite Route (R) radiocommunication service in one or Service. An aeronautical mobile-sat- more identified countries or geo- ellite service reserved for communica- graphical area and under specified con- tions relating to safety and regularity ditions. (RR) of flights, primarily along national or Altitude of the Apogee or Perigee. The international civil air routes. (RR) altitude of the apogee or perigee above Aeronautical Mobile-Satellite Service. A a specified reference surface serving to mobile-satellite service in which mo- represent the surface of the Earth. bile earth stations are located on board (RR) aircraft; survival craft stations and Amateur-Satellite Service. A emergency position-indicating radio- radiocommunication service using beacon stations may also participate in space stations on earth satellites for this service. (RR) the same purposes as those of the ama- Aeronautical Mobile Service. A mobile teur service. (RR) service between aeronautical stations Amateur Service. A and aircraft stations, or between air- radiocommunication service for the craft stations, in which survival craft purpose of self-training, intercommuni- stations may participate; emergency cation and technical investigations position-indicating radiobeacon sta- carried out by amateurs, that is, by tions may also participate in this serv- duly authorized persons interested in ice on designated distress and emer- radio technique solely with a personal gency frequencies. (RR) aim and without pecuniary interest. Aeronautical Radionavigation-Satellite (RR) Service. A radionavigation-satellite Amateur Station. A station in the service in which earth stations are lo- amateur service. (RR) cated on board aircraft. (RR) Assigned Frequency. The centre of the Aeronautical Radionavigation Service. frequency band assigned to a station. A radio-navigation service intended for (RR) 451 VerDate Mar<15>2010 09:35 Dec 08, 2010 Jkt 220200 PO 00000 Frm 00461 Fmt 8010 Sfmt 8010 Y:\SGML\220200.XXX 220200 wwoods2 on DSK1DXX6B1PROD with CFR § 2.1 47 CFR Ch. I (10–1–10 Edition) Assigned Frequency Band. The fre- standard symbols, e.g., type of modula- quency band within which the emission tion, modulating signal, type of infor- of a station is authorized; the width of mation to be transmitted, and also if the band equals the necessary band- appropriate, any additional signal width plus twice the absolute value of characteristics. (RR) the frequency tolerance. Where space Coast Earth Station. An earth station stations are concerned, the assigned in the fixed-satellite service or, in frequency band includes twice the max- some cases, in the maritime mobile- imum Doppler shift that may occur in satellite service, located at a specified relation to any point of the Earth’s fixed point on land to provide a feeder surface. (RR) link for the maritime mobile-satellite Assignment (of a radio frequency or service. (RR) radio frequency channel). Authorization Coast Station. A land station in the given by an administration for a radio maritime mobile service. (RR) station to use a radio frequency or Community Reception (in the broad- radio frequency channel under speci- casting-satellite service). The reception fied conditions. (RR) of emissions from a space station in Base Earth Station. An earth station the broadcasting-satellite service by in the fixed-satellite service or, in receiving equipment, which in some some cases, in the land mobile-satellite cases may be complex and have anten- service, located at a specified fixed nae larger than those for individual re- point or within a specified area on land ception, and intended for use: (1) by a to provide a feeder link for the land group of the general public at one loca- mobile-satellite service. (RR) tion; or (2) through a distribution sys- Base Station. A land