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Recommended separation distances between portable and mobile RF communications
The device is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or 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 device as recommended below, according to
the maximum output power of the communications equipment.
Rated
maximum
output power
150 kHz to 80 MHz
of transmitter
(W)
0.01
0.1
1
10
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 applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected
by absorption and reflection from structures, objects and people.
FISDR - JAP / F1902124.DE / 07 / 2011 - updated 10/2016
equipment and the device
Separation distance according to frequency of transmitter
80 MHz to 800 MHz
d = 1,2 √P
0.12
0.38
1.2
3.8
12
(m)
d = 1,2 √P
0.12
0.38
1.2
3.8
12
800 MHz to 2,5 GHz
d = 2,3 √P
0.23
0.73
2.3
7.3
23
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