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Keysight N4000A Noise Source (SNS Series)
10 MHz to 18 GHz | 6 dB ENR | Precision Noise Figure Measurements
The Keysight N4000A Noise Source is a high-accuracy, broadband noise source engineered for precise low noise figure measurements from 10 MHz to 18 GHz. With a nominal 6 dB Excess Noise Ratio (ENR), the N4000A is optimized for characterizing low-noise amplifiers (LNAs), receivers, RF components, and devices under test (DUTs) where gain and impedance sensitivity demand exceptional measurement stability.
Designed as part of the Keysight SNS series, the N4000A delivers reliable and repeatable noise figure testing for DUTs with noise figures up to 20 dB, making it an ideal solution for RF and microwave design, validation, and production environments.
Optimized for Low Noise Figure Testing
The 6 dB ENR output level is specifically suited for measuring low-noise devices, reducing mismatch uncertainty and minimizing measurement error caused by impedance sensitivity.
Broad Frequency Coverage: 10 MHz to 18 GHz
Covering VHF through microwave frequencies, the N4000A supports a wide range of RF and microwave applications including aerospace, defense, wireless communications, and high-frequency component development.
Electronic ENR Data Storage
Built-in electronic storage of calibrated Excess Noise Ratio (ENR) data helps eliminate manual data entry errors and ensures measurement traceability.
Automatic ENR Download to Noise Figure Analyzers
When paired with compatible Keysight Noise Figure Analyzers (NFA), ENR calibration data automatically downloads, significantly reducing setup time and improving workflow efficiency.
Temperature Compensation for Enhanced Accuracy
Integrated temperature compensation improves measurement stability across varying environmental conditions, enabling tighter device performance specifications.
