158 SafetyGetting the Most Out of Your ReceptionKeeping Tabs on Signal StrengthThe quality of each call you make or receive depends on the signalstrength in your area. Your phone informs you of the current signalstrength by displaying a number of bars next to the signal strengthicon. The more bars displayed, the stronger the signal. If you’reinside a building, being near a window may give you better reception.Understanding the Power Save FeatureIf your phone is unable to find a signal after 15 minutes of searching, aPower Save feature is automatically activated. If your phone is active,it periodically rechecks service availability or you can check it yourselfby pressing any key. Anytime the Power Save feature is activated, amessage displays on the screen. When a signal is found, your phonereturns to standby mode.Understanding How Your Phone OperatesYour phone is basically a radio transmitter and receiver. When it’sturned on, it receives and transmits radio frequency (RF) signals.When you use your phone, the system handling your call controls thepower level. This power can range from 0.006 watts to 0.2 watts indigital mode.Knowing Radio Frequency SafetyThe design of your phone complies with updated NCRP standardsdescribed below. In 1991-92, the Institute of Electrical andElectronics Engineers (IEEE) and the American National StandardsInstitute (ANSI) joined in updating ANSI’s 1982 standard for safetylevels with respect to human exposure to RF signals. More than 120scientists, engineers and physicians from universities, governmenthealth agencies and industries developed this updated standard afterreviewing the available body of research. In 1993, the FederalCommunications Commission (FCC) adopted this updated standard
