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11
Guidance and manufacturer's declaration for EMD
Recommended separation distances
The AX-B3543W is intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the AX-B3543W can help
prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the AX-B3543W as
recommended below, according to the maximum output power of the communications
equipment.
Rated maximum
output power of
transmitter
(W)
0.01
100
For transmitters rated at a maximum output power not 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 80 MHz and 800 MHz, the separation distance for the higher frequency range
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is
56
Separation distance according to frequency of transmitter
150 kHz to 80 MHz
d=1.2
0.12
0.1
0.38
1
10
applies.
affected by absorption and reflection from structures, objects and people.
Table 4
80 MHz to 800 MHz
d=1.2
P
0.12
0.38
1.2
3.8
12
(m)
800 MHz to 2.7 GHz
d=2.3
P
0.23
0.73
1.2
3.8
12
P
2.3
7.3
23
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