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This device is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of this device can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and this device are 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
150kHz to
80MHz
d
=1.2
80MHz to
800MHz
d
=1.2
800MHz to 2.5GHz
d
=2.3
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
d
in metres (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, 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 800MHz, the separation distance for the higher frequency range
applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
√
P
√
P
√
P
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