Keysight 4395A为实验室和生产制造应用提供优异的矢量网络、频谱和可选的阻抗测量。只要有一台这样的仪器，就能进行通常评估元件和电路所需要的增益、相位、群时延、失真、寄生、CN和噪声测量。
当与测试装置一起使用时，Keysight 4395A可提供回波损耗、SWR和S参数这类反射测量。作为矢量网络分析仪，Keysight 4395A工作于10Hz至500MHz频率，具有1mHz的分辨率；它的集成合成源提供-50到+15dBm输出功率，具有0.1dB的分辨率。动态幅度和相位精度分别为+/-0.05 dB 和 +/-0.3 deg。因而能精确测量今日电子系统中越来越重要的增益和群时延平坦度。
作为频谱分析仪，Keysight 4395A工作于10Hz至500MHz频率，分辨率带宽（RBW）跨度为以1-3-10步进的1 Hz 至1 MHz。全合成本振允许稳定和精确的频率分析。直接A/D转换（不使用对数放大器）实现+/-0.8 dB电平精度（@50 MHz, -20 dBm）。噪声边带低于-100 dBc/Hz @ 100 kHz载波偏置，10MHz时的灵敏度为-145 dBm/Hz。
Network/Impedance Analyzer
Spectrum Analyzer
The 4395A provides excellent vector network, spectrum, and optional impedance measurements for lab and production applications. Gain, phase, group delay, distortion, spurious, CN, and noise measurements often required for evaluating components and circuits can be measured using one instrument.
When combined with a test set, the 4395A provides reflection measurements, such as return loss, SWR, and S parameters. As a vector network analyzer, the 4395A operates from 10 Hz to 500 MHz with 1 mHz resolution; and its integrated synthesized source provides -50 to + 15 dBm of output power with 0.1 dB resolution. The dynamic magnitude and phase accuracy are +/-0.05 dB and +/-0.3 deg. so that it can accurately measure gain and group delay flatness, which are becoming more important in modern electronics systems.
As a spectrum analyzer, the 4395A operates from 10 Hz to 500 MHz with resolution bandwidths (RBWs) spanning 1 Hz to 1 MHz in a 1-3-10 steps. A fully-synthesized local oscillator allows stable and accurate frequency analysis. Direct A/D conversion (no LOG amplifier is used) results in +/-0.8 dB level accuracy (@50 MHz, -20 dBm). Noise sidebands fall below -100 dBc/Hz @ 100 kHz offset from carriers, while sensitivity is -145 dBm/Hz at 10 MHz.
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