Getting The Most Out Of Your Reception - palmOne Vision Smart Device Treo 650 User Manual

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 signal 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 the 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 active, it periodically rechecks service availability; you can
also check it yourself by pressing any key. Anytime the Power Save feature is activated, a message is
displayed 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
radiofrequency (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 Radiofrequency Safety
The design of your Sprint PCS Vision 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 body of research. In 1993, the Federal Communications Commission (FCC) adopted this
updated standard in a regulation. In August 1996, the FCC adopted hybrid standard consisting of the
existing ANSI/IEEE standard and the guidelines published by the National Council of Radiation
Protection and Measurements (NCRP).
266 Safety