Microsoft Corporation RM-216V User Manual

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then that part of the body will absorb more RF energy. Wireless phones 
marketed in the U.S. are required to meet safety requirements regardless 
of whether they are used against the head or against the body. Either 
configuration should result in compliance with the safety limit.
Do wireless phone accessories that claim to shield the head from RF 
radiation work?
Since there are no known risks from exposure to RF emissions from 
wireless phones, there is no reason to believe that accessories that claim 
to shield the head from those emissions reduce risks. Some products 
that claim to shield the user from RF absorption use special phone cases, 
while others involve nothing more than a metallic accessory attached to 
the phone. Studies have shown that these products generally do not 
work as advertised. Unlike "hand-free" kits, these so-called "shields" 
may interfere with proper operation of the phone. The phone may be 
forced to boost its power to compensate, leading to an increase in RF 
absorption. In February 2002, the Federal trade Commission (FTC) 
charged two companies that sold devices that claimed to protect 
wireless phone users from radiation with making false and 
unsubstantiated claims. According to FTC, these defendants lacked a 
reasonable basis to substantiate their claim.
How does FCC Audit Cell Phone RF?
After FCC grants permission for a particular cellular telephone to be 
marketed, FCC will occasionally conduct “post-grant” testing to 
determine whether production versions of the phone are being produced 
to conform with FCC regulatory requirements. The manufacturer of a 
cell phone that does not meet FCC’s regulatory requirements may be 
required to remove the cell phone from use and to refund the purchase 
price or provide a replacement phone, and may be subject to civil or 
criminal penalties. In addition, if the cell phone presents a risk of injury 
to the user, FDA may also take regulatory action. The most important 
post-grant test, from a consumer’s perspective, is testing of the RF 
emissions of the phone. FCC measures the Specific Absorption Rate 
(SAR) of the phone, following a very rigorous testing protocol. As is true 
for nearly any scientific measurement, there is a possibility that the test 
measurement may be less than or greater than the actual RF emitted by 
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