105
Sa
fe
ty
mea
suring the r
ate
a
t which RF is
deposit
ed in the heads of
wir
ele
ss phone user
s. The t
est
me
thod use
s a tissue-sim
ula
ting
model of the h
uman head.
St
andar
dized S
AR t
est
me
thodology is e
xpect
ed t
o
gr
ea
tl
y impr
ov
e the consist
ency
of mea
sur
ement
s made a
t
differ
ent labor
atorie
s on the
same phone. S
AR is the
mea
sur
ement of the amount of
ener
gy absorbed in tissue, either
by
the whole bod
y or a small
par
t of the bod
y. It is mea
sur
ed
in w
att
s/kg (or milliw
att
s/g) of
ma
tter
. This mea
sur
ement is used
to
de
termine whe
ther a wir
ele
ss
phone complie
s with safe
ty
guideline
s.
9.
Wha
t st
eps can I t
ak
e t
o
re
duce m
y e
xposur
e t
o
R
adio
Fr
equency ener
gy
fr
om m
y
wir
ele
ss phone?
If ther
e is a risk fr
om the
se
pr
oduct
s — and a
t this point w
e
do no
t kno
w tha
t ther
e is — it is
pr
obabl
y v
ery small. But if y
ou
ar
e concerned about a
voiding
ev
en po
tential risks, y
ou can t
ak
e
a fe
w simple st
eps t
o minimize
your e
xposur
e t
o R
adio
Frequency (RF) ener
gy
. Since
time is a k
ey fact
or in ho
w m
uch
exposur
e a per
son r
eceiv
es
,
reducing the amount of time
spent using a wir
ele
ss phone will
reduce RF e
xposur
e. If y
ou m
ust
conduct e
xtended con
ve
rs
ations
by
wir
ele
ss phone e
very da
y, y
ou
could place mor
e dist
ance
be
tw
een y
our bod
y and the
sour
ce of the RF
, since the
exposur
e le
vel dr
ops off
dr
ama
ticall
y with dist
ance. F
or
ex
ample, y
ou could use a
