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36
Recommended separation distances between portable and mobile RF communications equipment and the System
The System is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled . The customer or the user of the System can help
prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the System
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
=
1.2
d
80 MHz to 800 MHz
=
1.2
d
800 MHz to 2.5 GHz
=
2.3
d
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 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 .
ART22683-101_rev-B.indd 35-36
1/7/15 11:43 AM