Palm Treo 700P User Manual page 245

smartphone. FCC measures the Specific Absorption Rate (SAR) of
the smartphone, following a very rigorous testing protocol. As is true
for nearly any scientific measurement, there is a possibility that the
test measurement may be less than or greater than the actual RF
emitted by the smartphone. This difference between the RF test
measurement and actual RF emission is because test measurements
are limited by instrument accuracy, because test measurement and
actual use environments are different, and other variable factors. This
inherent variability is known as "measurement uncertainty. " When
FCC conducts post-grant testing of a cell smartphone, FCC takes into
account any measurement uncertainty to when determining whether
regulatory action is appropriate. This approach ensures that
when FCC takes regulatory action, it will have a sound, defensible
scientific basis.
FDA scientific staff reviewed the methodology used by FCC to
measure cell smartphone RF , and agreed it is an acceptable approach,
given our current understanding of the risks presented by cellular
smartphone RF emissions. RF emissions from cellular smartphones
have not been shown to present a risk of injury to the user when the
measured SAR is less than the safety limits set by FCC (an SAR of 1.6
w/kg). Even in a case where the maximum measurement uncertainty
permitted by current measurement standards was added to the
maximum permissible SAR, the resulting SAR value would be well
below any level known to produce an acute effect. Consequently,
FCC's approach with measurement uncertainty will not result in
consumers being exposed to any known risk from the RF emitted by
cellular telephones.
FDA will continue to monitor studies and literature reports concerning
acute effects of cell smartphone RF , and concerning chronic effects of
long-term exposure to cellular telephone RF (that is, the risks from
using a cell smartphone for many years). If new information leads
FDA to believe that a change to FCC's measurement policy may be
appropriate, FDA will contact FCC and both agencies will work
together to develop a mutually-acceptable approach.
FCC Hearing Aid Compatibility Your Treosmartphone is compliant
with the FCC Hearing Aid Compatibility (HAC) requirements. For
additional HAC information, including the HAC rating of this product,
please refer to www.palm.com/treoHAC.
Static Electricity, ESD, and Your Palm
Electrostatic discharge (ESD) can cause damage to electronic devices
if discharged into the device, so you should take steps to avoid such
an occurrence.
Description of ESD Static electricity is an electrical charge caused
by the buildup of excess electrons on the surface of a material. To
most people, static electricity and ESD are nothing more than
annoyances. For example, after walking over a carpet while scuffing
your feet, building up electrons on your body, you may get a shock—
the discharge event—when you touch a metal doorknob. This little
shock discharges the built-up static electricity.
ESD-susceptible equipment Even a small amount of ESD can harm
circuitry, so when working with electronic devices, take measures to
help protect your electronic devices, including your Palm
from ESD harm. While Palm has built protections against ESD into its
products, ESD unfortunately exists and, unless neutralized, could
build up to levels that could harm your equipment. Any electronic
device that contains an external entry point for plugging in anything
from cables to docking stations is susceptible to entry of ESD.
Devices that you carry with you, such as your smartphone, build up
ESD in a unique way because the static electricity that may have built
up on your body is automatically passed to the device. Then, when
the device is connected to another device such as a docking station, a
discharge event can occur.
Precautions against ESD Make sure to discharge any built-up static
electricity from yourself and your electronic devices before touching
an electronic device or connecting one device to another. The
recommendation from Palm is that you take this precaution before
connecting your device to your computer, placing the device in a
cradle, or connecting it to any other device. You can do this in many
ways, including the following:
• Ground yourself when you're holding your mobile device by
simultaneously touching a metal surface that is at earth ground.
For example, if your computer has a metal case and is plugged
into a standard three-prong grounded outlet, touching the case
should discharge the ESD on your body.
• Increase the relative humidity of your environment.
• Install ESD-specific prevention items, such as grounding mats.
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