The Keysight N4001A/001 is a high-performance noise source from the SNS series, designed for accurate and repeatable noise figure measurements across the 10 MHz to 18 GHz frequency range. With an excess noise ratio (ENR) of 15 dB, this RF detector is essential for characterizing receivers, amplifiers, and other RF components in both R&D and production environments.
Key Features & Highlights
- Broad Frequency Coverage: 10 MHz to 18 GHz ensures versatility across various RF and microwave applications.
- Precise ENR: 15 dB excess noise ratio provides reliable reference for noise figure measurements.
- Low VSWR: <1.5:1 minimizes mismatch errors and improves measurement accuracy.
- Compact & Lightweight: Portable design facilitates easy integration into test setups.
- USB & LAN Interfaces: Enables remote control and automated data acquisition, enhancing test efficiency.
Applications
The Keysight N4001A/001 is ideal for noise figure measurements of amplifiers, mixers, and receivers, as well as for verifying system sensitivity in radar, satellite, and wireless communication systems. Its accuracy and repeatability make it a valuable tool for quality assurance and compliance testing.





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