Keysight N9951BU/356 Noise Figure Option

Overview

The N9951BU/356 Noise Figure option equips FieldFox analyzers with comprehensive noise characterization capabilities using the Y-Factor measurement technique. This option provides five different measurement types across multiple device configurations for accurate noise figure assessment of amplifiers, downconverters, upconverters, and multi-stage systems.

Key Features

• Five measurement types: Noise Figure, Noise Factor, Gain, Noise Temperature, Y-Factor
• Four measurement setup types: Noise Source, DUT, Integration, Uncertainty
• Pre-configured measurements for Amplifier, Downconverter, Upconverter, Multi-Stage Converter
• Customizable uncertainty contribution values including jitter, ENR, mismatch, and user calibration
• Support for Keysight noise source models 346A/B/C/K40/K01
• Compatible with external preamplifiers Keysight models U7227A/C/F or U7228A/C/F for improved accuracy

System Requirements

• Spectrum analyzer mode (Option 233 on combination models)
• Internal preamplifier (Option 235)
• DC bias variable voltage source (Option 309)
• CPU2 processor
• External noise source
• Accessory: N9910X-713 BNC to SMB cable for bias connection