38
Recommended separation distances between portable and mobile
RF communications equipment and the device
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)
Separation distance according to frequency of transmitter
150 kHz - 80 MHz
d = 3,5/V¹
√
P
80 MHz - 800 MHz
d = 1,167
√
P
800MHz to 2,5 GHz
d = 2,333
√
P
0,01
Not applicable
0.117
0.233
0,1
Not applicable
0.369
0.738
1
Not applicable
1.167
2.333
10
Not applicable
3.690
2.333
100
Not applicable
11.67
23.33
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 structures, objects and people.
Table 6 – Recommended separation distances between portable and mobile RF communications
equipment and the ME EQUIPMENT or ME SYSTEM
– for ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
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