The Rohde & Schwarz FSUP8 is a signal source analyzer that combines high-end spectrum analysis with precision phase noise measurement via phase-locked loop technology. Operating from 10 MHz to 8 GHz, it delivers single-box characterization of oscillators and synthesizers, eliminating the need for multiple instruments and reducing test complexity. Extended measurements to 110 GHz are supported with external mixers.
Technical Specifications
Frequency Coverage & Resolution
• Base range: 10 MHz to 8 GHz
• Extended range with external mixers: Up to 110 GHz
• Minimum frequency offset (transient): 10 mHz
• Maximum frequency offset (transient): 30 MHz
• Signal analysis bandwidth: Up to 320 MHz (optional)
Amplitude & Dynamic Range
• DANL: −156 dBm (1 Hz) without noise cancellation
• Amplitude range: DANL to +30 dBm
• Measurement uncertainty: <0.2 dB (DC to 3.6 GHz); <0.3 dB (to 8 GHz)
• Third-order intercept (TOI): Typically 25 dBm for 320 MHz signal
• Dynamic range enhancement: Up to 20 dB improvement at 26 GHz with cross-correlation
Phase Noise & Oscillator Characterization
• Two-DUT phase detector method with internal or external reference
• Cross-correlation for enhanced dynamic range in microwave measurements
• Automatic VCO characterization including tuning slope, transient response, power, harmonics, and spurious emissions
• Frequency hop analysis capability: Up to 8 GHz bandwidth
• Interference detection and suppression during phase noise testing
Additional Measurements
• AM noise measurement (via external zero-bias Schottky diode detector)
• Noise figure measurement
• Gain measurement
Power Supply (Internal Low-Noise DC Outputs)
• 2 Tuning ports: −10 V to +28 V, 20 mA each
• 2 DC ports: 0 V to +12 V, 500 mA each
• 1 Aux port: −10 V to 0 V, 500 mA
– Key Features
• 12.1-inch touchscreen display supporting simultaneous multi-window measurement views
• Type N (female) RF input connector
• USB ports for data storage and system integration
• Compact form factor: 32 × 28 × 20 inches
