Section 4: Safety Guidelines and Warranty Information
225
4A: Safety
Consumer Information on Wireless Phones
(The following information comes from a consumer information
Website jointly sponsored by the U.S. Food and Drug Administration
(FDA) and the Federal Communications Commission (FCC), entitled
“Cell Phone Facts: Consumer Information on Wireless Phones.” The
information reproduced herein is dated April 3, 2002. For further
updates, please visit the Website:
http://www.fda.gov/cellphones/
.)
1. What is radiofrequency energy (RF)?
Radiofrequency (RF) energy is another name for radio waves. It is one
form of electromagnetic energy that makes up the electromagnetic
spectrum. Some of the other forms of energy in the electromagnetic
spectrum are gamma rays, x-rays and light. Electromagnetic energy (or
electromagnetic radiation) consists of waves of electric and magnetic
energy moving together (radiating) through space. The area where these
waves are found is called an electromagnetic field.
Radio waves are created due to the movement of electrical charges in
antennas. As they are created, these waves radiate away from the
antenna. All electromagnetic waves travel at the speed of light. The major
differences between the different types of waves are the distances covered
by one cycle of the wave and the number of waves that pass a certain
point during a set time period. The wavelength is the distance covered by
one cycle of a wave. The frequency is the number of waves passing a
given point in one second. For any electromagnetic wave, the wavelength
multiplied by the frequency equals the speed of light. The frequency of an
RF signal is usually expressed in units called hertz (Hz). One Hz equals
one wave per second. One kilohertz (kHz) equals one thousand waves per
second, one megahertz (MHz) equals one million waves per second, and
one gigahertz (GHz) equals one billion waves per second.
RF energy includes waves with frequencies ranging from about 3000
waves per second (3 kHz) to 300 billion waves per second (300 GHz).
Microwaves are a subset of radio waves that have frequencies ranging
from around 300 million waves per second (300 MHz) to three billion
waves per second (3 GHz).
Summary of Contents for SH-G1000
Page 1: ...User s Guide PCS Vision Picture Phone with Built in Camera Hitachi SH G1000 ...
Page 8: ...4B Customer Limited Warranty 247 Customer Limited Warranty 248 Index 253 ...
Page 10: ...2 ...
Page 12: ...4 ...
Page 13: ...Section 1 5 Getting Started Section 1 Getting Started ...
Page 14: ...6 ...
Page 19: ...Section 2 11 Understanding Your Device Section 2 Understanding Your Device ...
Page 20: ...12 ...
Page 74: ...Section 2 Understanding Your Device 66 2A Your PCS Phone The Basics ...
Page 86: ...Section 2 Understanding Your Device 78 2B Using Your Phone ...
Page 110: ...Section 2 Understanding Your Device 102 2D Controlling Your Device s Settings ...
Page 114: ...Section 2 Understanding Your Device 106 2E Controlling Your Roaming Experience ...
Page 132: ...Section 2 Understanding Your Device 124 2G Using Microsoft Pocket Outlook ...
Page 136: ...Section 2 Understanding Your Device 128 2H Using Your Phone s Voice Services ...
Page 186: ...Section 2 Understanding Your Device 178 2K Connecting with a Personal Computer ...
Page 193: ...Section 3 185 Using PCS Service Features Section 3 Using PCS Service Features ...
Page 194: ...186 ...
Page 210: ...Section 3 Using PCS Service Features 202 3B PCS Vision ...
Page 214: ...Section 3 Using PCS Service Features 206 3C PCS Voice Command ...
Page 216: ...208 ...
Page 259: ...251 ...
Page 264: ...256 Index ...