User guide

60
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 your phone is in use, the system handling your call controls
the power level. This power can range from 0.006 watts to 0.2
watts.
Radio frequency safety.
In 1991–1992, 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 a hybrid standard consisting of the existing ANSI/IEEE
standard and the guidelines published by the National Council of
Radiation Protection and Measurements (NCRP).
The design of the phone complies with these updated standards.
Of course, if you want to limit RF exposure even further than the
updated standard, you can choose to control the duration of your
calls and operate your phone in the most power-efficient manner.
QCP1960 6/3/99 10:23 AM Page 60