Appendices
20-26
TABLE C-4
Recommended separation distances between portable and mobile RF
communication and the equipment
The equipment is intended for use in an electromagnetic environment in which radiated RF
disturbance are controlled. The customer or the user of the equipment can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communication equipment (transmitters) and the equipment as recommended below,
according to the maximum output power of the communication equipment.
Separation Distance According to Frequency of Transmitter
M (Meters)
Rated Maximum
Output power of
Transmitter W
(Watts)
150kHz -80MHz
Pd 2.1=
80MHz -800MHz
Pd 2.1=
800MHz -2.5GHz
Pd 3.2=
0.01 0.12 0.12 0.23
0.1 0.37 0.37 0.74
1 1.17 1.17 2.34
10 3.69 3.69 7.38
100 11.67 11.67 23.34
For transmitters at a maximum output power not listed above, the recommended separation
distanced in meters (m) can be determined 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 — At 80 MHz and 800 MHz, the separation distance for the higher frequency range
applies.
Note — These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
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