The Rohde & Schwarz FSW8 is a high-performance signal and spectrum analyzer built for precision measurement across 2 Hz to 8 GHz, with extension capability to 110 GHz using external harmonic mixers. It delivers exceptional phase noise performance, dynamic range exceeding 100 dBc, and measurement uncertainty below 0.4 dB to 8 GHz—making it ideal for oscillator characterization, spurious analysis, and demanding RF applications.
Technical Specifications
Frequency Range & Bandwidth
• 2 Hz to 8 GHz native; extendable to 110 GHz with external mixers
• Standard analysis bandwidth up to 500 MHz
• Extended analysis bandwidth up to 8.3 GHz with optional modules (B80, B320)
• Real-time analysis bandwidth: 160 MHz standard, 800 MHz at 2.4 million FFT/s
Phase Noise
• –137 dBc (1 Hz) at 10 kHz offset from 1 GHz carrier
• –128 dBc (1 Hz) at 10 kHz offset from 10 GHz carrier
• With R&S FSW-B4 precision frequency reference (OCXO): –140 dBc (1 Hz) at 10 kHz offset (1 GHz), typical
Noise Floor & Sensitivity
• DANL typically –156 dBm (1 Hz) at 8 GHz
• DANL typically –159 dBm (1 Hz) at 2 GHz without preamplifier
• High sensitivity down to –120 dBm (1 Hz) from 2 Hz baseband
Dynamic Range & Linearity
• Spurious-free dynamic range > 100 dBc
• Dynamic range –88 dBc with noise cancellation (WCDMA ACLR)
• Third-order intercept 25–30 dBm nominal
• Unparalleled dynamic range to 1 GHz with separate receive path
Measurement Accuracy
• Total measurement uncertainty < 0.4 dB to 8 GHz
• High-level measurement accuracy to 8 GHz
– Key Features
• 12.1" high-resolution multitouch display with gesture support
• Windows 10 interface with flat design and intuitive multi-view result display
• Rapid sweep times with efficient measurement rates
• Large I/Q memory for recording extended signal sequences
• Quick instrument setup switching
• MultiView capability displaying multiple results simultaneously
• Embedded SCPI recorder for automated script generation
– Typical Applications
• Oscillator development for radar and communications
• Spurious and harmonic analysis requiring high dynamic range
• Phase noise characterization and frequency stability testing
• Wideband signal acquisition and analysis
– Compatibility & Integration
Supports external Rohde & Schwarz harmonic mixers for frequency extension and optional precision frequency reference modules (R&S FSW-B4) for enhanced close-in phase noise performance.
