BMS Truck-Coder II, Инструкция по установке и эксплуатации

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vi
Estimated RF Exposure for 7 GHz Truck-Coder II
0.0
1.0
2.0
3.0
4.0
5.0
0 100 200 300 400 500 600 700
Dis tance , cm
Po
w
er
D
en
sit
y,
m
W
/c
m
^2
Max Permissible
Exposure: 1mW/cm
2
30 dBi Antenna
Max Exposure at 560 cm
0 dBi Antenna
Max Exposure at 20 cm
16 dBi Antenna
Max Exposure at 112 cm
5 dBi Antenna
Max Exposure at 35 cm
Figure 1
Summary
In order the keep the RF exposure within the FCC limit, it is necessary to maintain the safe distance from
the antenna. The results shown in Figures 1 can be summarized in the following table:
Minimum permissible distance from antenna (cm) Antenna Gain
(dBi)
0 20
5 35
16 112
30 560
Notice the above table indicates worst-case situation (straight in front of the antenna).