试题与答案

通信设备的直流供电电源的杂音电压不得大于（）。 A.2.4mV B.2.6mV C.

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题型：单项选择题

题目：

通信设备的直流供电电源的杂音电压不得大于（）。

A.2.4mV

B.2.6mV

C.2.8mV

D.3.0mV

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A, B, C

考点：电力载波通信考试电力载波通信考试题库
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