26
Electromagnetic Capability
(EMC) Tables
(cont.)
Recommended Separation Distances Between Portable and Mobile RF
Communications Equipment and the Device
The device is intended for use in an electromagnetic environment in
which radiated RF disturbances are controlled. The user of the device
can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communications
equipment (transmitters) and the recommended below, according to
the maximum 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=(3.5/
V1)*(√(P))
80 MHz to
800 MHz
d=(3.5/
E1)*(√(P))
800 MHz to 2.5 GHz d=(7/
E1)*(√(P))
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters rated at a maximum output power not listed above,
the recommended separation distance in meters (m) can be estimated
using the equation applicable to the frequency of the transmitter,
where P is the maximum output power rating of the transmitter in
watts (W) accordable to the transmitter manufacturer.
NOTE: At 80 MHz and 800 MHz, the separation distance for the higher
frequency range applies.
NOTE: These guidelines may not apply in all situations.
Electromagnetic propagation is affected by absorption and reflection
from structures, objects and people.
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