For a wider range of output power levels to test active devices and components, Option 1E1 adds a 60-dB step attenuator as a standard feature, which extends the lowest power-level setting to -60 dBm.

• 为更广泛的输出功率水平，以测试有源器件和组件，选择1e1增加了60分贝步衰减器作为标准功能，它扩展了最低功耗级别设置为-60 dBm的。