以下各段将讨论在进行低电平测量时对电缆和测试夹具的要求以及常用的连接器类型。
The following paragraphs discuss cable and test fixture requirements and types of connectors generally used when making low level measurements.
一旦查出问题后，调制解调器需要重新连接和测试，来验证正常的传输电平。
Once the problem is fixed, the modem is reconnected and tested to verify normal transmit levels.
一个数字电平的振幅控制被提供用于测试指示器电平公差。
An Amplitude Control of Digital Level is provided to test Indicator Level Tolerance.
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