Neuro-Audio-Screen, Neuro-Audio-Screen/OAE Hearing Screening Systems (Technical Manual)
100
Recommended separation distances between portable and mobile RF communications
equipment and screening system
The screening system is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the screening system can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the screening system as recommended below, according
to the maximum output power of the communications equipment.
Separation distance according to frequency of transmitter, m
Rated maximum output
power of transmitter, W
P
d
17
.
1
in the band
from 150 kHz up to 80
MHz
P
d
17
.
1
in the band
from 80 up to 800 MHz
P
d
23
.
2
in the band
from 800 MHz up to 2.5
GHz
0.01
0.117
0.117
0.233
0.1
0.369
0.369
0.738
1
1.167
1.167
2.333
10
3.689
3.689
7.379
100
11.667
11.667
23.333
Notes:
1. At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
2. These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
3. For transmitters rated at a maximum output power not listed above, the recommended separation
distance
d
in meters (m) can be determined using the equation applicable to the frequency of the
transmitter, where
Р
is the maximum output power rating of the transmitter in watts (W) according to the
transmitter manufacturer.
