Understanding How Your Phone Operates; Radio Frequency Safety; Maintaining Your Phone's Peak Performance - Samsung SCH-3500 User Manual

Understanding how your phone oper-
ates.
Your phone is basically a radio transmitter and receiv-
er.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 level 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 scien-
tists, engineers, and physicians from universities, gov-
ernment health agencies, and industry developed this
updated standard after reviewing the available body
of research. In 1993, the Federal Communications
(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 updat-
ed standards. Of course, if you want to limit RF expo-
sure even further than the updated standard, you can
choose to control the duration of your calls and oper-
ate your phone in the most power-efficient manner.
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Maintaining your phone's peak perfor-
mance.
To operate your phone properly — that is, to main-
tain safe and satisfactory service — you should fol-
low these rules:
¤ For best reception, extend the antenna fully.
¤ Hold the phone with the antenna up and over
your shoulder.
¤ Do not hold, bend, or twist the phone antenna at
any time.
Close the phone antenna when not on a call.
¤
¤ Do not use the phone with a damaged antenna.
¤ Speak directly into the microphone.
¤ Avoid exposing your phone and accessories to
rain or liquid spills. If your phone gets wet, turn
the power off immediately, remove the battery,
and allow the phone an battery to air dry for 10
hours (in normal room temperature and humidi-
ty). If after the 10 hour drying time, the phone is
inoperable, you should return it to the store
where you purchased it, or a Samsung authorized
service center.
Only Samsung authorized personnel should service
your phone and its accessories. Faulty service may
invalidate the warranty.
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