23
ELECTROMAGNETIC COMPATIBILITY
Table 4
Recommended separation distances between portable and mobile RF communications
equipment and the []
The 240391 is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the 240391 can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the 240391 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
m
150 kHz to 80 MHz
(out ISM and
amateur radio
bands)
d=1.2
150 kHz to 80 MHz
(in ISM and
amateur radio
bands)
d=2
80MHz to
800MHz
d=1.2
800MHz to
2.7GHz
d=2.3
0,01
0.12
0.2
0.12
0.23
0,1
0.38
0.632
0.38
0.73
1
1.2
2
1.2
2.3
10
3.8
6.32
3.8
7.3
100
12
20
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.
