Hitachi SH-G1000 - Manual (Page 229)

Section 4: Safety Guidelines and Warranty Information
221 4A: Safety
Cautions
Any changes or modifications to your device not expressly approved by
the party responsible for compliance could void your warranty for this
equipment and void your authority to operate this equipment. Only use
specified batteries, antennas and chargers. Although your device is quite
sturdy, it is a complex piece of equipment and can be broken. Avoid
dropping, hitting, bending, or sitting on it.
Use only the supplied antenna. Unauthorized antennas, modifications, or
attachments could impair call quality, damage the phone, or result in
violation of FCC regulations. Do not use the phone with a damaged
antenna. Please contact your local dealer for replacement antenna.
Tests for SAR are conducted using standard operating positions specified
by the FCC with the device transmitting at its highest certified power level
in all tested frequency bands. Although the SAR is determined at the
highest certified power level, the actual SAR level of the device while in
operation can be well below the maximum value. This is because the
device is designed to operate at multiple power levels so as to use only the
power required to reach the network. In general, the closer you are to a
wireless base station antenna, the lower the power output.
Specific Absorption Rates (SAR) for Wireless Phones
The SAR is a value that corresponds to the relative amount of RF energy
absorbed in the head of a user of a wireless device.
The SAR value of a phone is the result of an extensive testing, measuring
and calculation process. It does not represent how much RF the phone
emits. All phone models are tested at their highest value in strict
laboratory settings. But when in operation, the SAR of a phone can be
substantially less than the level reported to the FCC. This is because of a
variety of factors including its proximity to a base station antenna, phone
design and other factors. What is important to remember is that each
phone meets strict federal guidelines. Variations in SARs do not represent
variation in safety.
All phones must meet the federal standard, which incorporates a
substantial margin of safety. As stated above, variations in SAR values
between different model phones do not mean variations in safety. SAR