Recommended Separation Distances between Portable and
Mobile RF Communications Equipment and this Device
The device is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of this device can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and this device 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 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
150 kHz to 80 MHz
d = 1.2
0.12
0.38
1.2
3.8
12
(m)
80 MHz to 800 MHz
d = 1.2
0.12
0.38
1.2
3.8
12
Appendix A. EMC Information
37
800 MHz to 2.5 GHz
d = 2.3
0.23
0.73
2.3
7.3
23