81
Recommended
separation
distances
Recommended separation distances between portable and mobile RF
communication equipment and the SUPER™ series hearing aids .
The SUPER™ series hearing aids are intended for use in the electromag-
netic environment in which RF disturbances are controlled . The customer
or the user of the SUPER™ series hearing aid can help prevent electro-
magnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and
the SUPER™ hearing aids as recommended below, according to the max-
imum output power of the communications equipment .
Rated maximum
output power of
transmitter
(W)
Separation distance according to frequency of
transmitter (m)
150 kHz to 80
MHz
d = 1 .2
√
P
80 MHz to
800 MHz
d = 1 .2
√
P
800 MHz to 2 .5
GHz
d = 2 .3
√
P
0 .01
0 .12
0 .12
0 .23
0 .1
0 .38
0 .38
0 .73
1
1 .2
1 .2
2 .3
