![background image](http://html.mh-extra.com/html/samsung/sgh-d900/sgh-d900_user-manual_1190496123.webp)
119
Health and safety information
• Switch your phone off before boarding an aircraft.
The use of wireless phone in aircraft is illegal and
may be dangerous to the aircraft's operation.
• Failure to observe these instructions may lead to
the suspension or denial of telephone services to
the offender, or legal action, or both.
Product Performance
Getting the Most Out of Your Signal Reception
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 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.
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.
Maintaining Your Phone's Peak Performance
For the best care of your phone, only authorized
personnel should service your phone and accessories.
Faulty service may void the warranty.
There are several simple guidelines to operating your
phone properly and maintaining safe, satisfactory
service.
• If your phone is equipped with an external
antenna, hold the phone with the antenna raised,
fully-extended and over your shoulder.
• Do not hold, bend or twist the phone's antenna, if
applicable.
D900.book Page 119 Friday, September 29, 2006 2:11 PM