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安捷伦Agilent E4402B频谱分析仪操作流程

Agilent E4402B(现为是德科技Keysight E4402B)是款便携式频谱分析仪,属于 ESA-E 系列,频率范围为100Hz至3.0GHz,以下就是Agilent E4402B频谱分析仪的操作流程步骤。开机与预热按下前面板的I(电源开)键接通电源,分析仪启动。开机后需预热5分钟,以确保仪器达到全部技术指标要求,保证测量精度。基本参数设置按Frequency Channel键设置中心频率或起始频率。按Span X Scale键调节频率跨度(如设为Full Span可查看全频段)。按Amplitude Y Scale键设置参考电平和幅度刻度(对数或线性)。通过步进键和旋钮微调参数数值。连接信号输入使用50Ω BNC电缆将待测信号接入前面板的信号输入口。若使用探头,需在探头上串联一个约30PF的隔直电容(陶瓷封装),防止直流损坏仪器。信号测量与显示选择合适的检波器方式(如峰值检波)和分辨带宽(RBW)。设置视频带宽(VBW)以平滑噪声。使用Marker(标记)功能区中的Peak Search自动寻找信号峰值,读取其频率和幅度。触发与扫描模式按Trig键设置触发源(如自由扫描、外部触发等)。使用Sweep键选择扫描模式(连续或单次扫描)。系统与高级功能按System键进入系统菜单,可进行校准(Auto Correct)、文件保存、打印设置等操作。若配备跟踪发生器(选件1DN/1DQ),可通过射频输出口进行传输响应测试,注意输出功率不可超过被测器件承受极限。关机测量完成后,按O(备用)键关闭大部分电路电源。实际完全断电需拔掉电源线。
Key Words:Agilent E4402BE4402BE4402B频谱分析仪
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