Hitachi SH-P300 사용자 설명서

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.

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 or you can check it 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.

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 0.1 

µW to 0.2 W in digital mode.

The design of your 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 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