Table 4
Recommended separation distances between portable and mobile RF communications equipment and the SBC 25
The SBC 25 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the
user of the SBC 25 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the SBC 25 as recommended below, according to the maximum output power of the commu-
nications equipment.
Rated maximum output
power of transmitter
(W)
Separation distance according to frequency of transmitter
(m)
150 kHz to 80 MHz
Not applicable
80 MHz to 800 MHz
d
= 1.2
800 MHz to 2.5 GHz
d
= 2.3
0.01
–
0.12
0.23
0.1
–
0.38
0.73
1
–
1.2
2.3
10
–
3.8
7.3
100
–
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 aff ected by absorption and refl ection from structu-
res, objects and people.
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