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Recommended Separation Distances between Portable and Mobile RF
This concentrator is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The user of the concentrator can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment(trans-
mitters)and this concentrator as recommended below, according to the maximum output power of the
communications equipment.
Rated Maximum
Power Output 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 meters(m)can be estimated using the equation applicable to the frequency of the
transmitter, where P is the maxi mum output power rating of the transmitter in watts(W)according to the
transmitter manufacturer.
NOTE: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE: The guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects, and people.
Communications Equipment and This Device:
Separation Distance According to Frequency of Transmitter(M)
150 kHz to 80 MHz
d ＝ 1.2
0.12
0.38
1.2
3.8
12
Table 17.4
80 MHz to 800 MHz
d ＝ 1.2
P
0.12
0.38
1.2
3.8
23
800 MHz to 2.5 GHz
P
12
d ＝ 2.3
P
0.23
0.73
2.3
7.3
23
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