Technical Information
182
Recommended separation distances between portable and mobile RF communications
equipment and the Incu
i
The Incu i is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of the Incu i can help prevent electromagnetic interference by maintain-
ing a minimum distance between portable and mobile RF communications equipment (transmitters) and the
Incu i 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
80 MHz to
800 MHz
d = 1.2 P
0.12
0.38
1.2
3.8
12
150 kHz to 80 MHz
outside ISM bands
d = 1.2 P
0.12
0.38
1.2
3.8
12
150 kHz to 80 MHz
in ISM bands
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
Separation distance according to frequency of transmitter
m
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in
meters (m) can be determined 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 80MHz and 800MH, the separation distance for the higher frequency range applies.
Note 2: The ISM (industrial, scientific, and medical) bands between 150kHz and 80MHz are 6.765MHz to
6.795MHz; 13.553MHz to 13.567MHz; 26.957MHz to 27.283MHz; and 40.66MHz to 40.70MHz.
Note 3: An additional factor of 10/3 is used in calculating the recommended separation distance for the trans-
mitters in the ISM frequency band between 150kHz and 80MHz and in the frequency range 80MHz
to 2.5GHz to decrease the likelihood that mobile/portable communications equipment could cause
interference if it is inadvertently brought into patient areas.
Note 4: The guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
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