Motorola V101 用户手册

radiation has emerged to date. Thus, the available science does not allow us to 
conclude that mobile phones are absolutely safe, or that they are unsafe. However, 
the available scientific evidence does not demonstrate any adverse health effects 
associated with the use of mobile phones. 

Questions have been raised about hand-held mobile phones, the kind that have a 
built-in antenna that is positioned close to the user's head during normal telephone 
conversation. These types of mobile phones are of concern because of the short 
distance between the phone's antenna--the primary source of the RF--and the 
person's head. The exposure to RF from mobile phones in which the antenna is 
located at greater distances from the user (on the outside of a car, for example) is 
drastically lower than that from hand-held phones, because a person's RF exposure 
decreases rapidly with distance from the source. The safety of so-called “cordless 
phones,” which have a base unit connected to the telephone wiring in a house and 
which operate at far lower power levels and frequencies, has not been questioned. 

Briefly, there is not enough evidence to know for sure, either way; however, research 
efforts are on-going. The existing scientific evidence is conflicting and many of the 
studies that have been done to date have suffered from flaws in their research 

1039b80o.book  Page 140  Monday, December 17, 2001  2:00 PM