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Radio Frequency (RF) Energy
Understanding How Your Phone Operates
Your phone is basically a radio transmitter and receiver. When it’s turned
on, it receives and transmits radio frequency (RF) signals. When you use
your phone, the system handling your call controls the power level. This
power can range from 0.006 watts to 0.2 watts in digital mode.
Knowing Radio Frequency Safety
The design of your phone complies with updated NCRP standards
described below.
In 1991-92, the Institute of Electrical and Electronics Engineers (IEEE) and
the American National Standards Institute (ANSI) joined in updating
ANSI’s 1982 standard for safety levels with respect to human exposure to
RF signals. More than 120 scientists, engineers and physicians from
universities, government health agencies and industries developed this
updated standard after reviewing the available body of research. In 1993,
the Federal Communications Commission (FCC) adopted this updated
standard in a regulation. In August 1996, the FCC adopted hybrid standard
consisting of the existing ANSI/IEEE standard and the guidelines
published by the National Council of Radiation Protection and
Measurements (NCRP).
Body-Worn Operation
To maintain compliance with FCC RF exposure guidelines, if you wear a
handset on your body, use the Sprint supplied or approved carrying case,
holster or other body-worn accessory. If you do not use a body-worn
accessory, ensure the antenna is at least 7/16 inch (1.5 centimeters) from
your body when transmitting. Use of non-Sprint approved accessories may
violate FCC RF exposure guidelines.
For more information about RF exposure, visit the FCC Web site at
www.fcc.gov
.
Section 3A: Important Safety Information 213
Important Safety Information