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Usage guidelines:
All about performance
and safety.
Keeping tabs on signal strength.
The voice quality of your Sprint PCS Phone will always be at its
best when the antenna is fully raised. If you're inside a building,
reception may be better near a window.
The quality of each call you make or receive depends on the
signal strength in your area. Your phone will inform you of the
current strength by displaying a number of bars next to the signal
strength icon. The more bars displayed, the stronger the signal.
(See page 12 for an illustration of the signal strength indicator.)
Understanding Power Save mode.
If you're trying to use your phone in an area where there is no
signal, the Power Save feature will automatically activate to
conserve battery power when you've been unable to pick up a
signal for 15 minutes. If your phone is on, it will periodically
recheck service availability, or you can do so yourself manually
by pressing any key. A message will be displayed on the screen
any time Power Save has been activated.
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Understanding how your phone operates.
Your Sprint PCS Phone is basically a radio transmitter and
receiver. When it's turned on, it receives and transmits radio
frequency (RF) signals. Your phone operates in the frequency
range of 1.9 GHz. When your phone is in use, the system
handling your call controls the power level.
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 Sprint PCS 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.
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