23
G
B
22
Recommended separation distances between portable and mobile RF communications equipment
and the CIRCULATOR
The CIRCULATOR is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the CIRCULATOR can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the CIRCULATOR 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
d = 1,2
√—
P
80 MHz to 800 MHz
d = 1,2
√—
P
800 MHz to 2,5 GHz
d = 2,3
√—
P
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 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.
7.
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