Rohde & Schwarz FSUP26 Signal Source Analyzer

The R&S FSUP26 Signal Source Analyzer merges advanced capabilities of a high-performance spectrum and signal analyzer with the benefits of a phase noise test system, all within a single compact device. Designed for measuring oscillators and synthesizers in both development and production environments, the FSUP26 streamlines processes, leading to significant cost reductions.

This versatile analyzer is ideal for a variety of applications including modern communications, broadcast systems, and radar technologies. With the ability to measure phase noise and characterize oscillators, the FSUP26 facilitates comprehensive assessments covering tuning slope, transient response, power, harmonics, spurious emissions, and amplifier noise. Additionally, integrated DC sources enable a wide range of extended measurements.

Key Features and Specifications

• Frequency range: Up to 26.5 GHz (expandable to 110 GHz with external mixers)
• Low Noise DC outputs for both supply and tuning voltages
• Maximum flexibility for phase noise measurements
• Advanced oscillator characterization capabilities
• Supports analysis of digital and analog modulated signals

Capabilities of the FSUP26

• Phase detector method with internal/external reference
• Two-DUT (Device Under Test) method for enhanced measurement accuracy
• High sensitivity for precise outcomes
• Automatic adjustment of all essential parameters
• Intuitive operation for ease of use
• Effective detection, suppression, and listing of interference
• Reference point measurements as a function of frequency
• Residual phase noise measurement
• AM noise assessment capabilities

Operating Modes

• Signal Source Analyzer: 1 MHz - 26.5 GHz
• Spectrum Analyzer: 20 Hz - 26.5 GHz

Detailed Measurement Specifications

• Phase Noise Measurement:
  • With Spectrum Analyzer: 10 MHz - 26.5 GHz
  • With Phase Comparator: 1 MHz - 26.5 GHz
    • Internal reference: 1 MHz - 26.5 GHz
    • External reference: 1 MHz - 8 GHz
  • With Phase Comparator & Cross-Correlation: 1 MHz - 26 GHz
• Transient Measurement:
  • Min. frequency offset: 10 MHz
  • Max. frequency offset: 30 MHz
• Residual Noise with Phase Comparator:
• AM Noise: 1 MHz - 8 GHz
• Sensitivity:
  • Input level >+10 dBm, spurious and harmonics <–30 dBc, mode "averaged" at +20 °C to +30 °C. LNA gain 40 dB, loop bandwidth =10 × frequency offset, max. 1 kHz. With R&S Option B60 low phase noise and Option B61 correlation extension.

VCO Parameter Characterization

Measurement Parameters

VCO tuning characteristic, VCO tuning slope, power, pushing ON/OFF, harmonics measurement, VCO DC characteristic, summary

Frequency Range	10 MHz - 26.5 GHz
Power Supplies	tuning ports: 2, DC ports: 2, additional ports: 1

Other model in this series:

• Rohde & Schwarz FSUP50 Signal Source Analyzer