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Recommended separation distances between portable and mobile RF communications equipment and the EQUIP-
MENT or SYSTEM – for EQUIPMENT or SYSTEM that are not LIFE-SUPPORTING
Recommended separation distances between portable and mobile RF communications equipment and the de-
vice
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 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 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 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 struc-
tures, objects and people.
Separation distance according to frequency of transmitter (m)
150 kHz to 80 MHz
3.5
√ P
d=
V
1
0,12
0,37
1,17
3,69
11,67
ENGLISH
80 MHz to 800 MHz
3.5
√ P
d=
E
1
0,12
0,37
1,17
3,69
11,67
800 MHz to 2.5 GHz
7
√ P
d=
E
1
0,23
0,74
2,33
7,38
23,33