Sony CMD-Z100 - Manual (Page 6)

6
Safety precautions
IMPORTANT
For safe and efficient operation of your phone,
observe these guidelines.
Your hand-held portable PCS telephone uses
digital Code Division Multiple Access (CDMA)
technology. CDMA is a newer radio frequency
(RF) technology than the FM technology that has
been used for radio communications for decades.
Your portable PCS telephone is a radio transmitter
and receiver. When the phone is ON, it receives
and sends out radio frequency (RF) energy. The
phone operates in the frequency range of 1851
MHz to 1989 MHz. When you use your phone, the
PCS system handling your call controls the mode
of operation and the power level at which your
phone transmits. The power is transmitted as a
digitally coded waveform at a rate varying from
100 Hz to 800 Hz. The average power can range
from about 0.01 µW to about 300 mW.
Exposure to radio frequency energy
Research on health effects from RF energy has
focused for many years on FM radio technology.
That research and studies regarding newer radio
technologies, such as CDMA, have found no
credible scientific evidence that adverse health
effects result from the use of PCS telephones.
The Institute of Electrical and Electronics
Engineers (IEEE) in 1991, and The American
National Standards Institute (ANSI) in 1992,
updated the 1982 ANSI Standard for safety levels
with respect to human exposure to RF energy.
Over 120 scientists, engineers, and physicians
from universities, government health agencies,
and industry, reviewed the available research and
CM-Z100/03-10final 2/19/98, 12:45 PM 6