Samsung A930 - Инструкция по эксплуатации - Страница 184

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Do hands-free k its for wireless phones reduce 
risk s from exposure to RF emissions?

Since there are no known risks from exposure to RF 
emissions from wireless phones, there is no reason to 
believe that hands-free kits reduce risks. Hands-free kits 
can be used with wireless phones for convenience and 
comfort. These systems reduce the absorption of RF 
energy in the head because the phone, which is the source 
of the RF emissions, will not be placed against the head. 
On the other hand, if the phone is mounted against the 
waist or other part of the body during use, 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 

a930.book  Page 184  Thursday, March 16, 2006  3:37 PM