Cellular Telephone Specific Absorption Rate (SAR)
The SAR is a value that corresponds to the relative amount of RF energy absorbed in the head of a user of a wireless handset. The FCC limit for public exposure from cellular telephones is an SAR level of 1.6 watts per kilogram (1.6 W/kg). Specific Absorption Rate (SAR) for Wireless Phones and Devices Available at FCC Web Site. Please see the SAR information page on the Consumer & Governmental Affairs Bureau for links to cellular phone manufacturers. You can also obtain SAR information on many cellular phones from the FCC's database if you have the FCC ID number of the phone or device and if it was produced and marketed within the last 1-2 years.
The FCC ID number is usually shown somewhere on the case of the phone or device. In many cases, you will have to remove the battery pack to find the number. Once you have the number, proceed as follows. Go to the following Web site: Equipment Authorization. Click on the link for “FCC ID Search”. Once you are there you will see instructions for inserting the FCC ID number. Enter the FCC ID number (in two parts as indicated: "Grantee Code" is comprised of the first three characters, the "Equipment Product Code" is the remainder of the FCC ID). Then click on "Start Search." The grant of equipment authorization for this particular ID number should appear. Look through the grant for the section on SAR compliance, certification of compliance with FCC rules for RF exposure or similar language. This section should contain the value(s) for typical or maximum SAR for your phone.
For portable phones and devices authorized since June 2, 2000, maximum SAR levels should be noted on the grant of equipment authorization. For phones and devices authorized between about mid-1998 and June 2000, detailed information on SAR levels is typically found in the "exhibits" associated with the grant of equipment authorization. Therefore, once a grant is accessed these exhibits can be viewed by clicking on the appropriate entry labeled "View Exhibit."
Electronic records for FCC equipment authorization grants were initiated in 1998. Therefore, prior to this date FCC records for grants are in the form of paper records that are not part of our electronic database. At this time, due to staff limitations, we are unable to routinely search through FCC paper records to extract SAR information for grants filed prior to mid- to late-1998.
OET RF Safety Publications
sort by OET Bulletin No. 56: Questions and Answers About Biological Effects Potential Hazards of Radio frequency Electromagnetic Fields (Fourth Edition, August 1999)
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This is an informative bulletin written as a result of increasing interest and concern of the public with respect to this issue. The expanding use of radio frequency technology has resulted in speculation concerning the alleged "electromagnetic pollution" of the environment and the potential dangers of exposure to non-ionizing radiation. This publication is designed to provide factual information to the public by answering some of the most commonly asked questions.
sort by OET Bulletin No. 65: Evaluating Compliance With FCC Guidelines for Human Exposure to Radio frequency Electromagnetic Fields
This technical bulletin was issued to provide guidance in the implementation of the Commission's new exposure limits and policies. The bulletin provides acceptable methods of determining compliance to Commission limits through the use of mathematical and empirical models.
sort by A Local Government Official's Guide to Transmitting Antenna RF Emission Safety: Rules, Procedures, and Practical Guidance. The LSGAC and the FCC have developed this guide to aid local governmental officials and citizens in understanding safety issues related to radio frequency emissions from telecommunications towers. [Acrobat | News Releaseabout]
Software
sort by FM Model Calculator
FM Model, a program created by Commission staff, is based on a model originally developed by the EPA, to predict ground-level RF power density in the vicinity of towers supporting FM radio broadcast antennas. This model has been found to be very useful for applications when it is desired to predict RF field levels on the ground near simple FM radio installations. If you have any questions about this program please contact the RF Safety Program.
21 SAFETY RULES FOR WORKING WITH ELECTRICAL EQUIPMENT
A safe work environment is not always enough to control all potential electrical hazards. You must be very cautious and work safely. Safety rules help you control your and others risk of injury or death from workplace hazards.
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If you are working on electrical circuits or with electrical tools and equipment, you need to use following golden safety rules:
Golden Safety Rules
Rule no. 1
Avoid contact with energized electrical circuits. Please don’t make fun of this rule if you already know this (and you probably already know if you are reading these lines) and remember that if something bad occurs – you probably won’t have second chance. That’s not funny.
Rule no. 2
Treat all electrical devices as if they are live or energized. You never know.
Rule no. 3
Disconnect the power source before servicing or repairing electrical equipment.
The only way to be sure.
Rule no. 4
Use only tools and equipment with non-conducting handles when working on electrical devices.
Easy to check.
Rule no. 5
Never use metallic pencils or rulers, or wear rings or metal watchbands when working with electrical equipment. This rule is very easy to forget, especially when you are showing some electrical part pointing with metallic pencil.
Always be aware.
Rule no. 6
When it is necessary to handle equipment that is plugged in, be sure hands are dry and, when possible, wear nonconductive gloves, protective clothes and shoes with insulated soles.
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