Samsung SGH-X640 Manual

Also see for SGH-X640: User guide Service manual Service manual

Contents

Health and safety information170tested frequency bands. Although the SAR isdetermined at the highest certified power level, theactual SAR level of the phone while operating canbe well below the maximum value. This is becausethe phone is designed to operate at multiple powerlevels so as to use only the power required to reachthe network. In general, the closer you are to awireless base station antenna, the lower the poweroutput of the phone.Before a new model phone is available for sale tothe public, it must be tested and certified to the FCCthat it does not exceed the limit established by thegovernment-adopted requirement for safeexposure. The tests are performed in positions andlocations (e.g., at the ear and worn on the body) asrequired by the FCC for each model. While theremay be differences between the SAR levels ofvarious phones and at various positions, they allmeet the government requirement.The FCC has granted an Equipment Authorizationfor this model phone with all reported SAR levelsevaluated as in compliance with the FCC RFexposure guidelines. SAR information on this modelphone is on file with the FCC and can be foundunder the Display Grant section of http://www.fcc.gov/oet/fccid after searching on FCC IDprinted in the label on the phone.FCC certification information for this model phone isattached separation paper.For Body OperationTo maintain compliance with FCC RF exposure requirements,use only belt-clips, holsters or similar accessories thatmaintain a 1.5 cm. separation distance between the user'sbody and the back of the phone, including the antenna.The use of belt-clips, holsters and similar accessoriesHealth and safety information171should not contain metallic components in its assembly.The use of accessories that do not satisfy these requirementsmay not comply with FCC RF exposure requirements,and should be avoided.Non-compliance with the above conditions mayviolate FCC RF exposure guidelines.For more Information concerning exposure to radiofrequency signals, see the following websites:Federal Communications Commission (FCC)http://www.fcc.gov/rfsafetyCellular Telecommunications Industry Association(CTIA): http://www.wow-com.comU.S.Food and Drug Administration (FDA)http://www.fda.gov/cdrh/consumerWorld Health Organization (WHO)http://www.who.int/peh-emf/enPrecautions When Using Batteries• Never use any charger or battery that is damagedin any way.• Use the battery only for its intended purpose.• If you use the phone near the network’s basestation, it uses less power; talk and standby timeare greatly affected by the signal strength on thecellular network and the parameters set by thenetwork operator.