$120.00 $240.00
  • Revision:2013 Edition, June 27, 2013
  • Published Date:January 2013
  • Status:Active, Most Current
  • Document Language:English
  • Published By:Institute of Electrical and Electronics Engineers (IEEE)
  • Page Count:253
  • ANSI Approved:Yes
  • DoD Adopted:No

  • This standard specifies U.S. consensus standard methods andinstrumentation and test facilities requirements for measurement ofradio frequency (RF) signals and noise emitted from unlicensedwireless devices (also called unlicensed transmitters, intentionalradiators, and license-exempt transmitters) operating in thefrequency range 9 kHz to 231 GHz. It does not include generic orproduct-specific emission limits. It also does not covermeasurement of radio emissions from unintentional radiators, asmentioned in 1.2. Where possible, the specifications herein areharmonized with other national and international standards used forsimilar purposes.

    Uses of the word shall in this standard indicate amandatory requirement that must be met to satisfy this standard.The word should is used to indicate that a requirement isrecommended but not mandatory. Tolerances on dimensions anddistances are based on good engineering practice where notspecified. The word may is used to indicate arecommendation that is at the discretion of the user. In addition,notes in this document are informative and are not part of therequirements. In this standard, the text takes precedence over thefigures because the text is complete and the figures areillustrative of a typical application of the text. Notes are usedin the text for emphasis or to offer informative suggestions aboutthe technical content of the standard, and provide additionalinformation to assist the reader with a particular passage, butthey do not include mandatory requirements. Footnotes in text areincluded only for information, clarification, and/or aid applicableto the use of the standard, but mandatory requirements are notincluded in text footnotes.

    Measurement methods are provided for radiated and conductedemissions that can be generated by a variety of devices, asdescribed in 1.2. Definitions are provided for terms and phrasescontained in the text, in which the words do not represent obviousor common usage. In most cases, measurement instrumentation andcalibration requirements are only generally characterized indeference to standards dedicated to these subjects, which should beused in conjunction with this standard. Requirements for operationof test samples during measurements are presented for devices ingeneral, as well as for specific types of devices that arefrequently measured. Specific requirements for emission test datarecording and reporting are presented with reference to generalrequirements contained in documents dedicated to standardlaboratory practices, which should be used in conjunction with thisstandard. The main text is augmented by a series of annexes thatprovide details for certain measurement methods and facilities.

    Purpose and applications

    Various unlicensed wireless devices (also known as unlicensedtransmitters, intentional radiators, and license-exempttransmitters) are subject to certain regulatory requirements. Theprimary way to show compliance in meeting regulatory requirementsis by testing such devices in a repeatable and reproducible manner.This standard presents the methods of measurement to showcompliance with the technical specifications for the majority ofcurrent wireless devices in wide use. It represents a consolidationand elucidation of procedures that were heretofore dispersedthroughout many documents. It is not expected that all unlicensedwireless devices on the market will in fact be covered by thisstandard.

    This standard does not consider test methods for unlicensedwireless devices already covered in other published standards, suchas Unlicensed Personal Communication Services devices, which arecovered in ANSI C63.17-2006 [B3].1 Procedures forevaluating dynamic frequency selection (DFS) functionality (i.e.,required for U-NII devices in the United States) and fortelevision-band unlicensed wireless devices2 are notaddressed in this standard. This standard also does not covermeasurement of emissions from radio receivers, the receiver portionof a transceiver, and other types of unintentional radiators, whichare covered by other standards (e.g., ANSI C63.4).3 Thisstandard does not cover other types of unintentional radiators(e.g., industrial, scientific, and medical (ISM) equipment). Inaddition, many types of unlicensed wireless devices are alsosubject to regulatory requirements concerning human exposure to RFenergy; RF exposure conformity assessment methods are notconsidered in this standard but are the subject of other standards(e.g., IEEE Std 1528TM-2003 [B37]).

    This document provides standard test methods for determiningcompliance with regulatory requirements for many types ofunlicensed wireless devices. These unlicensed wireless devicesinclude, but are not limited to, the following:

    — Remote control and security unlicensed wireless devices

    — Frequency hopping and direct sequence spread spectrumdevices

    — Digital transmission system devices

    — Antipilferage devices

    — Cordless telephones

    — Radio frequency identification (RFID) tag readers

    — Unlicensed National Information Infrastructure devices

    — Intrusion detectors

    — Unlicensed wireless devices operating below 30 MHz

    — Wireless (garage) door openers

    — Ultra-wideband (UWB) devices

    — Automatic vehicle identification systems

    — Inductive devices

    Clause 2 and Clause 3 contain the normative references anddefinitions used in this standard, respectively. Clause 4 providesthe specifications for the necessary test instrumentation neededfor performing compliance testing. Clause 5 provides the generalrequirements for all standard test methods. Clause 6 providesstandard test methods required for most unlicensed wirelessdevices. Clause 7, Clause 8 (FM band devices), Clause 9(millimeter-wave devices), Clause 10 (ultra-wideband devices),Clause 11 (DTS devices), Clause 12 (U-NII devices), Clause 13(devices using antenna arrays), and Clause 14 (devices withmultiple outputs) identify additional tests or requirements forspecific types of unlicensed wireless devices. Clause 15 specifiesrequirements for reporting test results.

    Annex A is an informative listing of the tests required todetermine compliance of a specific unlicensed wireless device andgives examples of regulatory band-edge requirements for variousunlicensed wireless devices. Because Annex A describes regulatoryrequirements for testing of unlicensed wireless devices, it servesas a key to use of this standard. Annex B is an informative exampleof the information to be included in a test report. Annex C is aninformative discussion on instrumentation pulse desensitizationconsiderations. Annex D provides information about detector typesand functions used in EMC testing. Annex E provides informationabout measurements above 1 GHz from an instrumentation perspective.Annex F is an informative discussion on broadband measurements.Annex G provides guidelines for effective radiated power (ERP) andequivalent isotropically radiated power (EIRP) measurements. AnnexH discusses the rationale for making radiated emission measurementsusing two different methods. Annex I discusses site considerationsfor measuring inductive-loop devices below 1 MHz. Annex J providesdetails of an alternative procedure for determining compliance ofunlicensed FM transmitters. Finally, Annex K and Annex L provide aninformative glossary and a bibliography, respectively.

    Use of the annexes and clauses applicable to an unlicensedwireless device under test allows users of this standard todetermine compliance of a device with regulatory requirements.However, any test procedure identified for use by the nationalregulatory authority that differs from the provisions of thisstandard shall take precedence.

    Numbered cross-references used throughout this standard refer toeither a specific clause or subclause of this standard; forexample, 6 refers to Clause 6, 6.2 refers to subclause 6.2, and A.2refers to subclause A.2 of Annex A.

    Not all clauses in this standard are applicable to all devicesthat can be measured with these methods. The nature of thisstandard is to specify general methods that can be applied to alldevices within its scope and to supplement these methods withparticular requirements for some types of devices. Device-specificrequirements take precedence over general requirements. See Annex Afor guidance in applying this standard to specific types ofdevices.

    This document covers measurement methodologies but is notintended to describe regulatory limits.

    As new measurement methods mature, this standard will be amendedor a follow-up standard will be developed to present the newmethods. It is also expected that the ASC C63® Committeethat developed this standard will provide a forum for testlaboratories, manufacturers, and government agencies to determinethe need for additions and amendments of this standard toaccommodate new wireless devices in the future.

    1 The numbers in brackets correspond to those of thebibliography in Annex L.

    2 Television-band unlicensed wireless devices arecovered in 47 CFR part 15 subpart H.

    3 Information on references can be found in Clause2.