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IEC60601-1-2: Table 206
Recommended separation distances between portable and
mobile RF communications equipment and the device
These devices are intended for use in an 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
Maximum rated
output power of
transmitter (W)
Separation distance according to frequency of transmitter (m)
150kHz~80MHz
d=1.2√P
80MHz~800MHz
d=1.2√P
800MHz~2.5GHz
d=2.3√P
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 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.