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FDX4343R
Recommended separation distances between portable and mobile RF communications equipment
and the FPI.
The FPI is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the FPI can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communication equipment
(transmitters) and the FPI as recommended below, according to the maximum output power of the
communications equipment.
Rated maximum
output power of
transmitter
W
0.01
0.1
1
10
100
For transmitters rated at a maximum output power listed above, the recommended separation
distance d 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) according
to the transmitter manufacturer.
Note:
(1) At 80MHz and 800MHz, the separation distance for the higher frequency range applies.
(2) These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption by absorption and reflection from structures objects and people.
(3) The FPI can only allow to use the designated cables and components.
If the different cables or components are used, they may deteriorate the performance of
recommended separation distance between portable and mobile RF communications
equipment and this system.
CAUTION
CAUTION
DO NOT USE THE ELECTROMAGNETIC DEVICE, SUCH AS (CELLULAR/CORDLESS)
TELEPHONES AND RADIO CONTROLLED TOYS, CLOSE TO THIS SYSTEM. OTHERWISE,
IT MAY CAUSE MALFUNCTION OF THE SYSTEM.
Separation distance according to frequency of transmitter
150kHz to 80MHz
d
=
1
2 .
P
0.12
0.38
1.2
3.8
12
m
80MHz to 800MHz
d
=
1
2 .
P
0.12
0.38
1.2
3.8
12
-16-
800MHz to 2.5GHz
d
=
2
3 .
P
0.23
0.73
2.3
7.3
23
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