36
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV
broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic
environment due to fixed RF transmitters, an electromagnetic site survey should be considered.
If the measured field strength in the location in which the model is used exceeds the applicable
RF compliance level above, the model should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as reorienting
or relocating the model.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V/m.
Recommended separation distances between
portable and mobile RF communications equipment and the model
The model is intended for use in electromagnetic environment in which radiated RF
disturbances is controlled. The customer or the user of the model can help prevent
electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the model is recommended below,
according to the maximum output power of the communications equipment.
Rated maximum output
power of transmitter
w
Separation distance according to frequency of transmitter
m
150kHz to 80MHz
d=1.2×P
1/2
80MHz to 800MHz
d=1.2×P
1/2
800MHz to 2,5GHz
d=2.3×P
1/2
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
Summary of Contents for Ai-Pex
Page 41: ...ZMN SM 272 V1 1 20210702 ...
