The Rohde & Schwarz FSVR40 Real-Time Spectrum Analyzer combines signal analysis, spectrum analysis, and real-time RF measurement in a single instrument covering 10 Hz to 40 GHz. It delivers 250,000 spectra per second with a 128 Msample/s, 16-bit A/D converter and real-time RF bandwidth from 100 Hz to 40 MHz. The analyzer achieves measurement speeds up to five times faster than comparable instruments, with level accuracy of 0.4 dB total measurement uncertainty to 7 GHz and exceptional dynamic range across its frequency span.
Technical Specifications
Frequency Coverage
• Base model: 10 Hz to 40 GHz (DC-coupled)
• AC-coupled operation: 10 MHz to 40 GHz
• Expandable to 110 GHz with external mixers
Real-Time Performance
• Real-time RF bandwidth: 100 Hz to 40 MHz
• A/D converter: 128 Msamples/s, 16-bit
• Spectra generation: 250,000 per second
• Spectrogram update rate: 10,000/s
• Screen refresh: 30/s
Signal Quality & Sensitivity
• Phase noise at 1 GHz (10 kHz offset): -110 dBc (1 Hz)
• Phase noise at 500 MHz (10 kHz offset): -106 dBc (1 Hz)
• DANL at 1 GHz: -155 dBm (1 Hz)
• DANL at 30 GHz: -147 dBm (1 Hz)
• DANL with R&S FSV-B24 preamplifier: -162 dBm (at 30 GHz)
• Third-order intercept (TOI): +15 dBm
• Second harmonic intercept (3.5–20 GHz): 80 dBm (nominal)
Resolution & Bandwidth
• Sweep filters: 1 Hz to 10 MHz (–3 dB)
• FFT filters: 1 Hz to 300 kHz (–3 dB)
• Zero span filters: 20 MHz, 28 MHz, 40 MHz
• Bandwidth uncertainty: < 3% (nominal)
• Shape factor (60:3 dB): < 5 (nominal)
RF Input Specifications
• 100 MHz to 3.6 GHz: -2 dBm (nominal)
• 3.6 to 7 GHz: 0 dBm (nominal)
• 7 to 40 GHz: -10 dBm (nominal)
– Key Features
• Max Hold, Min Hold, and Average trace functions
• Gapless spectrogram function for time-domain signal visualization
• Persistence mode displays signal frequency occurrence patterns
• Power vs. Time analysis for signal length and temporal variance
• Frequency Mask Trigger (FMT) for sporadic event detection
• I/Q data streaming for extended RF sequence recording
• Multiple detectors: Average (linear/RMS), Max Peak, Min Peak, Sample
• Windowing options: Blackman Harris, Gauss, flat top, rectangular, Hanning, Kaiser
– Typical Applications
• Complex signal analysis and characterization
• Transient event detection and troubleshooting
• Wideband spectrum monitoring and recording
• Phase noise and harmonic distortion measurement
• Real-time RF interference identification
– Compatibility & Integration
The instrument supports external mixer expansion for coverage beyond 40 GHz and integrates with optional preamplifiers for enhanced sensitivity in low-signal applications.
