Knowing Performance and Safety Guidelines
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Performance
and Safety
134
Knowing Performance and Safety Guidelines
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. To further limit RF
exposure, you can limit the duration of
your calls and operate your phone in
the most power-efficient manner.
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
Getting the Most Out of your
Reception
Keeping Tabs on Signal Strength
The quality of each call you make or
receive depends on the signal
strength in your area. Your phone
informs 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.
Calling quality of your phone is
always at its best when the antenna is
fully raised. If you’re inside a
building, being near a window may
give you better reception.
Understanding Power Save Feature
If your phone is unable to find a signal
after 15 minutes of searching, a Power
Save feature is automatically activated.
If your phone is on, it periodically
rechecks service availability or you can
check yourself by pressing any key.
Anytime the Power Save feature is
activated, a message displays on the
screen. When a signal is found, your
phone returns to Standby mode.
Summary of Contents for SP 510
Page 1: ...SP 510 Phone User Guide ...
