Rohde and Schwarz FS-SNS26 Smart Noise Source, 10 MHz to 26.5 GHz

The Rohde & Schwarz FS-SNS26 Smart Noise Source generates calibrated noise power across 10 MHz to 26.5 GHz, enabling accurate noise figure measurements and receiver calibration in RF and microwave systems. This compact module delivers 1 W output with an Excess Noise Ratio of 13 dB to 17 dB and ENR flatness of ±0.10 dB to ±0.13 dB across its operating range. Built-in smart technology automates parameter loading and uncertainty calculations, eliminating manual data entry and measurement errors.

– Technical Specifications

• Frequency Range: 10 MHz to 26.5 GHz
• Excess Noise Ratio (ENR): 13 dB to 17 dB
• ENR Flatness (Uncertainty): ±0.10 dB to ±0.13 dB
• Output Power: 1 W
• Temperature Coefficient: 0.009 dB/°C
• VSWR: 1.15:1 to 1.35:1
• Impedance: 50 Ohms
• RF Connector: APC 3.5 mm male
• Control Interface: 7-pin power and control cable
• Power Supply: 5 V (digital), 28 V (analog)
• Current Draw: 30 mA to 500 mA
• Operating Temperature: 0 °C to 55 °C
• Storage Temperature: -40 °C to 71 °C
• Dimensions: 38.0 mm W × 30.5 mm H × 130.0 mm D

– Key Features

• Automatic ENR table and uncertainty loading via smart interface
• Integrated temperature readout for real-time accuracy correction
• Reflection coefficient management for automated uncertainty analysis
• Compact module design for bench and rack integration
• Low temperature drift at 0.009 dB/°C

– Typical Applications

• Noise figure measurement of receivers and low-noise amplifiers
• RF and microwave system calibration
• Sensitive receiver validation and characterization

– Compatibility & Integration

Direct integration with R&S FSW, R&S FSV/A3000, R&S FPS, R&S FPL1000, R&S FSWP, R&S FSMR3000, and R&S ZNL analyzers. When paired with compatible instruments running R&S FSx-K30 noise figure measurement firmware, the FS-SNS26 automatically configures all measurement parameters, reducing setup time and operator error.