Apple Cell Phone Apple iPhone 3GS User Manual

4.5

Out of 4 Ratings

Owner's of the Apple Cell Phone Apple iPhone 3GS gave it a score of 4.5 out of 5. Here's how the scores stacked up:

  • Reliability

    4.4 out of 5

  • Durability

    5.0 out of 5

  • Maintenance

    5.0 out of 5

  • Performance

    4.33 out of 5

  • Ease of Use

    3.6 out of 5
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When you’re using iPhone or charging the battery, it is normal for iPhone to
get warm. The exterior of iPhone functions as a cooling surface that transfers
heat from inside the unit to the cooler air outside.
Exposure to Radio Frequency Energy iPhone transmits and receives radio
frequency (RF) energy through its antennas. The iPhone cellular antenna
is located on the back of iPhone near the dock connector. The Wi-Fi and
Bluetooth® antenna is located near the back top edge of iPhone.
iPhone is designed, tested, and manufactured to comply with the limits for
exposure to RF energy set by international regulatory agencies, including the
FCC of the United States, IC of Canada, MIC of Japan, and the Counsel of the
European Union, among others.
“Specic Absorption Rate,” or SAR, refers to the rate at which the body
absorbs RF energy. The SAR limits for mobile phones are 1.6 watts per
kilogram (W/kg) for the FCC and IC, and 2.0 W/kg for the Council of the
European Union.
iPhone has been tested,
1
and meets the FCC, IC, and European Union RF
exposure guidelines for cellular, Wi-Fi, and Bluetooth operation.
During SAR testing, iPhone is held in standard operating positions (i.e., at the
head and on the body) and its radios are set to transmit at the highest power
level. iPhone’s maximum SAR levels on each frequency of operation are
provided in a chart at the end of this section.
The SAR levels experienced during normal use may be lower than the
maximum SAR levels. In normal use, iPhone automatically adjusts radio
transmission power to the lowest level necessary to communicate with the
wireless network.
When carrying iPhone, keep it 1.5 cm (5/8 inch) or more away from your body
to ensure exposure levels remain at or below the maximum levels. Avoid
cases with metal parts.
Exposure to RF energy is related to time and distance. If you are concerned
about RF exposure, decrease your total talk time on iPhone and increase your
distance to iPhone by using one of the many hands-free options available,
including the built-in speakerphone, the supplied headphones with built-in
mic, or other third-party accessories.
For more information about RF energy exposure, see the FCC’s Radio
Frequency Safety page at:  www.fcc.gov/oet/rfsafety
For information about the scientic research related to RF energy exposure,
see the World Health Organization’s EMF Research Database at:
www.who.int/peh-emf/research/database
1
The device was tested according to measurement standards and procedures
specied in FCC OET Bulletin 65, Supplement C (Edition 01-01) and IEEE
1528-2003, and Canada RSS 102. iPhone adheres to the European Council
Recommendation of 12 July 1999 on the Limitation of Exposure of the
General Public to Electromagnetic Fields [1999/519/EC].

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