文件编号：
NR-TP-0715-008
版本：
1.0
- 89 -
Appendix B EMC
Recommended Separation Distances between Portable and Mobile RF
Communications Equipment and The device
The device is suitable for use in an electromagnetic environment in which radiated RF disturbance
are controlled. The customer or the user of the device can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the device as recommended below, according to the
maximum output power of the communication equipment.
Rated Maximum
Output power of
Transmitter Watts
(W)
Separation Distance Meters (m) Corresponding to Frequency of
Transmitter
150k to 80MHz
d
＝
3.5
80M to 800MHz
d
＝
3.5
800M to 2.5GHz
d
＝
0.01
0.35
0.35
0.23
0.1
1.11
1.11
0.74
1
3.5
3.5
2.34
10
11.07
11.07
7.38
100
35
35
23.24
For transmitters at a maximum output power not listed above, the separation distance can be
estimated using the equation in the corresponding column, where P is the maximum output power
rating of the transmitter in watts (W) according to the transmitter manufacturer.
Note 1: From 80 MHz to 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.
