Keysight N4002A SNS Smart Noise Source with 10 MHz to 26.5 GHz Frequency Range and 12 dB to 17 dB ENR for Noise Figure Measurement

The Keysight N4002A is a high-performance Smart Noise Source (SNS) from the SNS series, covering 10 MHz to 26.5 GHz with a nominal Excess Noise Ratio (ENR) of 12 dB to 17 dB. Featuring a 3.5mm precision connector and electronic storage of ENR calibration data, the N4002A enables fast, automated, and highly accurate noise figure measurements when paired with Keysight noise figure analyzers or PNA-X series vector network analyzers. The electronic ENR data eliminates manual entry errors and speeds up multi-frequency point calibrations.

• Wide frequency coverage: 10 MHz to 26.5 GHz
• Nominal ENR: 12 dB to 17 dB for versatile DUT noise figure characterization
• Smart Noise Source (SNS) with electronically stored ENR calibration table
• 3.5mm male precision connector for reliable RF connections
• Automatic ENR data download eliminates manual entry errors
• Compatible with Keysight NFA series noise figure analyzers
• Compatible with Keysight PNA-X with noise figure option (H29)
• Ideal for amplifier, mixer, and receiver noise figure measurement

• Low-noise amplifier (LNA) noise figure characterization
• Receiver front-end noise figure measurement
• Mixer and frequency converter noise figure testing
• RF component and subsystem noise parameter extraction
• Production line noise figure verification
• R&D laboratory device noise characterization
• MMIC and RFIC on-wafer noise measurements

Unlike traditional noise sources that require manual entry of ENR values from a calibration sheet, the N4002A SNS series electronically stores its unique ENR calibration table in internal EEPROM memory. When connected to a compatible Keysight analyzer, the ENR data is automatically downloaded, eliminating transcription errors and significantly reducing calibration time—especially for multi-frequency measurement sequences. This smart feature ensures traceable, repeatable measurements across every use.

The N4002A noise source is packaged in an export-grade reinforced carton with custom-cut anti-static foam insert. The precision 3.5mm connector is protected with a dust cap. We ship worldwide via DHL, FedEx, UPS, TNT, or EMS with full tracking and insurance coverage.

• Pre-shipment ENR verification testing
• 90-day warranty on all pre-owned equipment
• Technical support for setup and measurement guidance
• Calibration services available upon request