Section 4A: Important Safety Information 249Important Safety InformationRadiofrequency (RF) EnergyUnderstanding How Your Phone OperatesYour phone is basically a radio transmitter and receiver. When it’s turnedon, it receives and transmits radiofrequency (RF) signals. When you useyour phone, the system handling your call controls the power level. Thispower can range from 0.006 watts to 0.2 watts in digital mode.Knowing Radio Frequency SafetyThe design of your Sprint PCS Phone complies with updated NCRPstandards described below.In 1991-92, the Institute of Electrical and Electronics Engineers (IEEE) andthe American National Standards Institute (ANSI) joined in updating ANSI’s1982 standard for safety levels with respect to human exposure to RFsignals. More than 120 scientists, engineers and physicians fromuniversities, government health agencies and industries developed thisupdated standard after reviewing the available body of research. In 1993,the Federal Communications Commission (FCC) adopted this updatedstandard in a regulation. In August 1996, the FCC adopted hybrid standardconsisting of the existing ANSI/IEEE standard and the guidelines publishedby the National Council of Radiation Protection and Measurements (NCRP).Body-Worn OperationTo maintain compliance with FCC RF exposure guidelines, if you wear ahandset on your body, use the Sprint supplied or approved carrying case,holster or other body-worn accessory. Use of non-Sprint approvedaccessories may violate FCC RF exposure guidelines.For more information about RF exposure, visit the FCC Website atwww.fcc.gov.Specific Absorption Rates (SAR) for Wireless PhonesThe SAR is a value that corresponds to the relative amount of RF energyabsorbed in the head of a user of a wireless handset.The SAR value of a phone is the result of an extensive testing, measuringand calculation process. It does not represent how much RF the phoneemits. All phone models are tested at their highest value in strictlaboratory settings. But when in operation, the SAR of a phone can besubstantially less than the level reported to the FCC. This is because of avariety of factors including its proximity to a base station antenna, phonedesign and other factors. What is important to remember is that each
