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Explore dual-channel and ultra-wideband signal analysis for demanding RF workflows.
Get faster, clearer insights with our new multicore, 12-bit oscilloscope up to 33 GHz. Trade in your old oscilloscope and get credit toward a new XR8.
Bridging design and physical testing to evaluate drop, impact, shock, and vibration compliance before hardware exists.
Unlock your free upgrade to the next bandwidth tier.
Strengthen 1.6T network reliability for AI-scale workloads from transceivers to interconnects.
Pair Keysight VSA software with the new XA5 signal analyzer for advanced visualization, demodulation, and analysis — start your 30-day trial today.
With extra memory and storage, these enhanced NPBs run Keysight's AI security and performance monitoring software and AI stack.
Explore end-to-end workflows spanning IC design, validation, wafer test, and photonics.
Explore curated support plans, prioritized to keep you innovating at speed.
Maximize accuracy and performance with precision accessories engineered for Keysight instruments.
Authoritative application notes, data sheets, reference designs, and test procedures to accelerate design and validation decisions.
Hands‑on bootcamps that teach system design, test methods, and production workflows engineers can apply immediately.
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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。
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