CHONGQING YEASN SCIENCE TECHNOLOGY CO. LTD. X12000001 Benutzerhandbuch
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Recommended separation distances between portable and mobile RF communications equipment and
the device
These devices are intended for use in an environment in which radiated RF disturbances 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
W
the device
These devices are intended for use in an environment in which radiated RF disturbances 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
W
Separation distance according to frequency of transmitter/m
150kHz - 80MHz
d = 1.2
80MHz - 800MHz
d = 1.2
800MHz - 2.5GHz
d = 2.3
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 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 1: At 80MHz and 800MHz, 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.
distance d 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 1: At 80MHz and 800MHz, 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.