AT&T Z331 - Manual (Page 82)

Radio Frequency (RF) Energy
•. .This.model.device.meets.the.government’s.requirements.for.exposure.to..
radio.waves.
•. .This.device.is.designed.and.manufactured.not.to.exceed.the.emission.limits.for.
exposure.to.radio.frequency.(RF).energy.set.by.the.Federal.Communications.
Commission.of.the.U.S..Government.
•. .The.exposure.standard.for.wireless.devices.employs.a.unit.of.measurement.
known.as.the.Specific.Absorption.Rate.or.SAR..The.SAR.limit.set.by.the.FCC.is.
1.6W/kg.*.
•. .Tests.for.SAR.are.conducted.using.standard.operating.positions.accepted.by.
the.FCC.with.the.device.transmitting.at.its.highest.certified.power.level.in.all.
tested.frequency.bands..Although.the.SAR.is.determined.at.the.highest.certified.
power.level,.the.actual.SAR.level.of.the.device.while.operating.can.be.well.
below.the.maximum.value..This.is.because.the.device.is.designed.to.operate.at.
multiple.power.levels.so.as.to.use.only.the.power.required.to.reach.the.network..
In.general,.the.closer.you.are.to.a.wireless.base.station.antenna,.the.lower.the.
power.output.
•. .The.highest.SAR.value.for.the.model.phone.as.reported.to.the.FCC.when.tested.
for.use.at.the.ear.is.0.622.W/kg.and.when.worn.on.the.body,.as.described.in.
this.user.guide,.is.0.667.W/kg.(Body-worn.measurements.differ.among.phone.
models,.depending.upon.available.accessories.and.FCC.requirements.)
•. .While.there.may.be.differences.between.the.SAR.levels.of.various.devices.and.at.
various.positions,.they.all.meet.the.government.requirement.
76 Radio.Frequency.(RF).Energy
*.In.the.United.States.and.Canada,.the.SAR.limit.for.mobile.phones.used.by.the.public.
is.1.6.watts/kg.(W/kg).averaged.over.one.gram.of.tissue..The.standard.incorporates.a.
substantial.margin.of.safety.to.give.additional.protection.for.the.public.and.to.account.for.
any.variations.in.measurements.