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Recommended separation distances between portable and mobile RF
The Medel Smart is intended for use in an electromagnetic environment in which ra-
diated RF disturbances are controlled. The customer or the user of the Medel Smart
can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and the
Medel Smart as recommended below, according to the maximum output power of the
Rated maxi-
mum output
power of
transmitter W
0,01
0,1
1
10
100
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.
38
100110_MedelSmart_USERmanual_REV.02.21.04.2017.indd 38
communications equipment and the Medel Smart
communications equipment.
Separation distance according to frequency of transmitter m
150 kHz to 80 MHz
(out ISM and amateur
radio bands)
d=1.2√p
0.12
0.38
1.2
3.8
12
150 kHz to 80 MHz
(in ISM and amateur
radio bands)
d=2√p
0.2
0.632
2
6.32
20
80MHz to
800MHz to
800MHz
2.7GHz
d=1.2√p
d=2.3√p
0.12
0.23
0.38
0.73
1.2
2.3
3.8
7.3
12
23
07/09/2017 12:32:56
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