Section 4: Safety Guidelines and Warranty Information
228 4A: Safety
The FCC guidelines for human exposure to RF electromagnetic fields are
derived from the recommendations of two expert organizations, the
National Council on Radiation Protection and Measurements (NCRP)
and the Institute of Electrical and Electronics Engineers (IEEE). In both
cases, the recommendations were developed by scientific and engineering
experts drawn from industry, government, and academia after extensive
reviews of the scientific literature related to the biological effects of RF
energy.
Many countries in Europe and elsewhere use exposure guidelines
developed by the International Commission on Non-Ionizing Radiation
Protection (ICNIRP). The ICNIRP safety limits are generally similar to
those of the NCRP and IEEE, with a few exceptions. For example, ICNIRP
recommends different exposure levels in the lower and upper frequency
ranges and for localized exposure from certain products such as hand-
held wireless telephones. Currently, the World Health Organization is
working to provide a framework for international harmonization of RF
safety standards.
The NCRP, IEEE, and ICNIRP all have identified a whole-body Specific
Absorption Rate (SAR) value of 4 watts per kilogram (4 W/kg) as a
threshold level of exposure at which harmful biological effects may
occur. Exposure guidelines in terms of field strength, power density and
localized SAR were then derived from this threshold value. In addition,
the NCRP, IEEE, and ICNIRP guidelines vary depending on the frequency
of the RF exposure. This is due to the finding that whole-body human
absorption of RF energy varies with the frequency of the RF signal. The
most restrictive limits on whole-body exposure are in the frequency range
of 30-300 MHz where the human body absorbs RF energy most efficiently.
For products that only expose part of the body, such as wireless phones,
exposure limits in terms of SAR only are specified.
The exposure limits used by the FCC are expressed in terms of SAR,
electric and magnetic field strength, and power density for transmitters
operating at frequencies from 300 kHz to 100 GHz. The specific values
can be found in two FCC bulletins, OET Bulletins 56 and 65:
http://www.fcc.gov/oet/info/documents/bulletins/#56
;
http://www.fcc.gov/oet/info/documents/bulletins/#65
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 ...