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Section 15
Knowing Performance and Safety Guidelines
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Knowing Performance 
and Safety Guidelines
art of getting the most out of your Sprint PCS
®
 Phone is knowing 
where and how it works at optimum efficiency. This section outlines 
performance and safety guidelines that ensure you experience the full 
quality your Sprint PCS Phone was designed to give you.
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. 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. 
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 
10 nanowatts to 0.3 watts in digital mode.
Knowing Radio Frequency Safety
The design of your Sprint PCS Phone complies with updated NCRP standards 
described below.
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
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