1、 TSB-133 June 2003R/05-2010Private Land Mobile Radio (FCC Part 90) Two Way Mobile and Portable Equipment RF Exposure (EME) Labeling, Product Manual, User Awareness, and Control Information to Meet FCC MPE/SAR Guidelines NOTICE TIA Engineering Standards and Publications are designed to serve the publ
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5、d or Publication. This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulato
6、ry limitations before its use. (From Project No. PN-3-0039-1, formulated under the cognizance of the TIA TR-8 Mobile and Personal Private Radio Standards, TR-8.17 Subcommittee on RF Exposure). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Standards and Technology Department 2500 Wilson Boulev
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22、TAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TSB-133 iFORWARD This forward is not part of this Telecommunications Systems Bulletin (TSB). This TSB is the product of work undertaken by the Electromagnetic Energy (EME) workin
23、g group of the TIA TR8.17. TR8.17 is a subcommittee of TIA TR8 and addresses Radio Frequency exposure matters of Private Radio products. Members of TR8.17 who contributed to this TSB are: Joel Berger, Nick Buris (TR8.17 chair), Wayne Leland (TIA, Private Radio Section chair), Roy McClellan III, Brya
24、n McWatters, Bob Speidel (TR8.17 vice-chair), Fred Moloznik (EME WG leader), John Oblak, Bill Pagones, Mike Ramnath, John Welch and Tess Zagaruyka. During the drafting of this work, discussions and comments have been provided by staff members of the Office of Engineering and Technology of the Federa
25、l Communications Commission. There are two annexes in this TSB. TSB-133 iiRF EXPOSURE (EME) LABELING, PRODUCT MANUAL, USER AWARENESS AND CONTROL INFORMATION FOR 2-WAY RADIOS TO MEET FCC MPE/SAR GUIDELINES TABLE OF CONTENTS 1 INTRODUCTION. 1 1.1 SCOPE . 2 1.2 RELEVANT DOCUMENTS . 2 1.3 DEFINITIONS .
26、3 1.3.1 PORTABLE 2-WAY DEVICE 3 1.3.2 MOBILE 2-WAY DEVICE 3 2 FCC RF EXPOSURE LIMITS 3 2.1 RF EXPOSURE CATEGORIES 4 2.1.1 CONTROLLED ENVIRONMENT 4 2.1.2 UNCONTROLLED ENVIRONMENT . 4 2.2 MAXIMUM PERMISSIBLE EXPOSURE (MPE) DEFINITION AND LIMITS. 4 2.3 SPECIFIC ABSORPTION RATE (SAR) DEFINITION AND LIMI
27、TS. 5 3 OPERATIONAL GUIDELINES 5 3.1 PRODUCT LABEL AND RF EXPOSURE ICON . 6 3.1.1 PLACEMENT AND LEGIBILITY 6 3.2 RF ENERGY EXPOSURE AWARENESS AND CONTROL INFORMATION. 6 ANNEX A PORTABLE 2-WAY RADIOS 8 ANNEX B MOBILE 2-WAY RADIOS . 12 TSB-133 1RF EXPOSURE (EME) LABELING, PRODUCT MANUAL, USER AWARENES
28、S AND CONTROL INFORMATION FOR 2-WAY RADIOS TO MEET FCC MPE/SAR GUIDELINES 1. INTRODUCTION FCC OET Bulletin 65 (Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields, edition 97-01, August 1997) provides general procedures regarding RF exposure, which a
29、pply to many diverse circumstances. FCC OET Bulletin 65 outlines the various Electromagnetic Energy (EME) evaluation methods as they apply to Land Mobile Radio Products. FCC OET Bulletin 65 differentiates among mobile, portable and base station products and specifies the necessary evaluation method
30、to determine compliance with FCC requirements on RF exposure. 47 CFR 2.1091, 2.1093 and 1.1307(b), 1.1310 require RF exposure compliance for fixed, mobile and portable transmitting devices. The Rule Part 1.1310 lists the field strength and power density limits that are applicable to mobile and fixed
31、 transmitters. 47 CFR 2.1093(d)(1), (2) list the specific absorption rate (SAR) limits for portable transmitters that are applicable for general population and for occupational exposure conditions. When a 2-way radio is intended for use in employment related conditions only, Occupational/Controlled
32、Exposure limits may be applicable. User awareness is required to meet FCC compliance requirements for Occupational/Controlled exposure limits. The General Population/Uncontrolled exposure limits are applied when the general public may be exposed. OET Bulletin 65 97-01, Supplement C 01-01 to OET Bull
33、etin 65, ANSI/IEEE C95.3, NCRP Report 119 etc. have provided various guidance on RF exposure evaluation for meeting field strength, power density and SAR requirements TSB-133 21.1. SCOPE To suggest guidelines on product labeling, user manual information, and operator instructions for mobile and port
34、able 2-way radio and to provide end-users with methods to comply with FCC RF exposure requirements. 1.2. RELEVANT DOCUMENTS This Telecommunications Systems Bulletin (TSB) should be used in conjunction with definitions and procedures described in the following documents: IEEE C95.1-1991 IEEE C95.3-19
35、91 47 CFR 1.1307, 1.1310, 2.1091 and 2.1093 FCC OET Bulletin 65, edition 97-01 Supplement C to OET Bulletin 65, edition 01-01 (June 2001 release) 1.3. DEFINITIONS 1.3.1. Portable 2-way device1For purposes of FCC RF exposure requirements, a portable device is defined as a transmitting device designed
36、 to be used with its radiating structures located within 20 centimeters of a persons body. Portable devices are evaluated for RF exposure compliance with respect to specific absorption rate (SAR) limits. 1.3.2. Mobile 2-way device2For purposes of FCC RF exposure requirements, a mobile device is defi
37、ned as a transmitting device designed to be used in other than fixed locations and to be generally used in such a way that a separation distance of at least 20 centimeters is normally maintained between the transmitters radiating structures and the body of user and nearby persons.3A 2-way radio oper
38、ating with a vehicular-mounted antenna is an example of a mobile transmitter device. Mobile devices are normally evaluated for RF exposure compliance with respect to field strength or power density limits. When appropriate, mobile devices may also be evaluated with respect to SAR limits to demonstra
39、te compliance. 1See 47 CFR 2.1093 2See 47 CFR 2.1091 3In this context, the term “fixed location“ means that the device, including its antenna, is physically secured at a permanent location and is not able to be easily moved to another location. TSB-133 32. FCC RF EXPOSURE LIMITS The RF exposure limi
40、ts adopted by the FCC are generally based on recommendations from the National Council on Radiation Protection and Measurements (NCRP) Report No. 86 and the American National Standards Institute (ANSI/IEEE) C95.1-1992.4FCC RF exposure compliance for mobile devices are determined according to the fre
41、quency-dependent field strength and power density limits described in 47 CFR 1.1310 (Table1). The SAR limits for portable devices are described in 47 CFR 2.1093. Field strength and power density limits are defined for free-space conditions; however, SAR limits are only defined in tissue dielectric m
42、edia. Different methods are used to evaluate compliance for mobile and portable transmitting devices. When applicable, the time-averaging criteria described in 47 CFR 1.1310 may be applied to determine the exposure compliance for mobile and portable devices that meet occupational exposure requiremen
43、ts. The time-averaging factor should be source-based, as described in 47 CFR 2.1091 and 2.1093, for compliance with general population exposure conditions. Additional information on how to comply with the FCC exposure limits is available in some of the aforementioned references. 2.1. RF EXPOSURE CAT
44、EGORIES 2.1.1 Controlled environment In general, the occupational/controlled exposure limits are applicable to situations in which persons are exposed as a consequence of their employment, and such persons have been made aware of the potential for exposure and can exercise control over their exposur
45、e. This exposure category is also applicable when the exposure is of a transient nature due to incidental passage through a location where the exposure levels may be higher than the general population/uncontrolled limits, but the exposed person is aware of the potential for exposure and can exercise
46、 control over his or her exposure by leaving the area or by some other appropriate means. Awareness of the potential for RF exposure in a workplace or similar environment can be provided through specific user awareness instructions as part of a RF safety program. If appropriate, product labels and i
47、nstructions can also be used to establish such awareness by providing prominent information on potential exposure considerations and instructions on methods to minimize such exposure. 2.1.2 Uncontrolled environment The general population/uncontrolled exposure limits are applicable to situations in w
48、hich the general public may be exposed or in which the persons who are exposed as a consequence of their employment may not be made fully aware of the potential for 4NCRP Report No. 86, “Biological Effects and Exposure Criteria for Radiofrequency Electromagnetic Fields“, sections 17.4.1, 17.4.1.1, 1
49、7.4.2 and 17.4.3; copyright NCRP, 1986, Bethesda, Maryland 20814. ANSI/IEEE C95.1-1992, “IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz”, Section 4.1; copyright 1992 by the Institute of Electrical and Electronics Engineers, Inc., New York, New York 10017. TSB-133 4exposure or cannot exercise control over their exposure. Members of the general public would come under this category when exposure is not employment-related, for example, in the case of a wireless transmitter that exposes
