Rohde and Schwarz FS-SNS90 Smart Noise Source, 60 GHz to 90 GHz

The Rohde & Schwarz FS-SNS90 is a smart noise source for precise noise figure and gain measurements across the 60 GHz to 90 GHz band. It automatically transfers ENR tables, temperature compensation data, and measurement uncertainty calculations to compatible spectrum analyzers, eliminating manual setup and reducing measurement error. The instrument uses the Y-factor method to characterize Device Under Test noise contribution and delivers a typical ENR of 15 dB with excellent return loss.

– Technical Specifications

• Frequency Range: 60 GHz to 90 GHz
• Excess Noise Ratio (ENR): 15 dB (typical)
• VSWR: Less than 1.50:1
• Temperature Coefficient: 0.009 dB/°C
• Reverse Power Rating: 1 W CW
• Operating Temperature: 0 to 55 °C
• Storage Temperature: −40 to 71 °C
• Supply Voltage: 28 V
• Current Draw: 30 to 500 mA

– Key Features

• Automatic ENR table loading eliminates manual data entry and calibration errors
• Environmental temperature compensation integrated into measurement results
• Real-time measurement uncertainty calculation and display
• WR12 waveguide output interface for direct connection to mm-wave test ports
• Compact package: 1.50 in × 1.20 in × 5.12 in
• Supplied with interface cable, manual, and protective carrying case

– Measurement Capabilities

• Generates calibrated noise signals for noise figure characterization
• Automatic loading of uncertainty and reflection coefficient tables
• Y-factor method implementation for accurate DUT noise analysis
• Integrated temperature monitoring for ambient-condition compensation

– Compatibility & Integration

The FS-SNS90 interfaces with Rohde & Schwarz spectrum analyzers and noise measurement systems including the FSW, FSWP, FSMR3000, FSVA3000, FSV3000, FPL1000, ZNL, FPS, and FSWP phase-noise analyzer. Control and power connection use a 7-pin LEMOSA/ODU female connector. A legacy Y adapter cable (R&S®SNSCABLE-Y) is available for earlier instrument generations.