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Recommended separation distances between portable and mobile RF communications equipment
and the RadiForce Series
The RadiForce series is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the RadiForce series can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the
RadiForce series as recommended below, according to the maximum output power of the communications equipment.
Rated maximum output
power of transmitter
150kHz to 80MHz
W
d = 1.2 √P
0.01
0.12
0.1
0.38
1
1.2
10
3.8
100
12
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.
Separation distance according to frequency of transmitter
m
80MHz to 800MHz
d = 1.2√P
0.12
0.38
1.2
3.8
12
800MHz to 2.5GHz
d = 2.3√P
0.23
0.73
2.3
7.3
23
Appendix
29
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