Welch Allyn Solarc Light Source - User Manual User Manual
Page 235

使用说明
第
4
章 规格
233
Welch Allyn
光源旨在用于对辐射性射频(
RF
)干扰进行控制的电磁环境中。
Welch
Allyn
光源的客户或用户可根据通信设备的最大输出功率,按照下文的建议,保持
便携式和移动式射频(
RF
)通信设备(发射器)与
Welch Allyn
光源之间的最小距
离,帮助避免电池干扰。
发射器 最大额
定输出功率
(
W
)
根据发射器频率确定的间隔距离 (
m
)
150
千赫 (
kHz
)到
80
兆赫 (
MHz
)
d = (1.17)
80
兆赫 (
MHz
)到
800
兆赫 (
MHz
)
d = (1.17)
800
兆赫(
MHz
)到
2.5
吉赫 (
GHz
)
d = (2.33)
0.01
0.117
0.117
0.233
0.1
0.37
0.37
0.74
1
1.17
1.17
2.33
10
3.70
3.70
7.37
100
11.70
11.70
23.30
对于上表未列出最大额定输出功率的发射器,可根据适用于发射器传输频率的方
程式估算所推荐的间隔距离
d
(单位为米 (
m
)),其中
P
表示根据发射器制造商
信息的发射器最大额定输出功率 (单位为瓦特 (
W
))。
注意
1
:在
80
兆赫 (
MHz
)和
800
兆赫 (
MHz
)时,适用较高的频率范围。
注意
2
:这些指导并非在所有的条件下都适用。电磁波的传播受到建筑物、物体和
人体的吸收及反射的影响。
P
P
P
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