Samsung SGH x426 User Manual page 129

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).
Health and Safety Information 125