The Rohde & Schwarz FSW13 is a high-performance signal and spectrum analyzer engineered for RF development, production, and verification across demanding measurement scenarios. Operating from 2 Hz to 13.6 GHz, with extension to 500 GHz via external harmonic mixers, the FSW13 delivers exceptional phase noise, high sensitivity, and spurious-free dynamic range exceeding 100 dBc. Its real-time analysis bandwidth reaches 800 MHz at 2.4 million FFT/s, while selectable analysis bandwidths span 10 MHz to 5 GHz with external oscilloscope integration. The instrument achieves displayed average noise levels as low as -159 dBm (1 Hz) at 2 GHz with the R&S®FSW-B13 preamplifier option, and -169 dBm (1 Hz) at 8 GHz with the R&S®FSW-B24 option.
Technical Specifications
• Frequency Range: 2 Hz to 13.6 GHz (base); up to 500 GHz with external harmonic mixers
• Internal Analysis Bandwidth: Up to 8.3 GHz
• Real-time Analysis Bandwidth: 800 MHz with 2.4 million FFT/s
• Phase Noise: -137 dBc (1 Hz) at 10 kHz offset, 1 GHz carrier; -133 dBc (1 Hz) at 10 kHz offset, 10 GHz carrier
• Displayed Average Noise Level: -156 dBm (1 Hz) at 2 GHz and 8 GHz (without preamplifier); -159 dBm (1 Hz) at 2 GHz with R&S®FSW-B13
• Third-Order Intercept Point: +30 dBm (< 1 GHz); +25 dBm ( 100 dBc
• Total Measurement Uncertainty: < 0.37 dB (≤ 8 GHz); < 0.4 dB (8 GHz)
– Key Features
• 12.1" multitouch display with gesture support
• Embedded SCPI recorder for simplified script generation
• Selectable analysis bandwidths: 10 MHz, 20 MHz, 28 MHz, 40 MHz, 80 MHz, 160 MHz, 320 MHz, 512 MHz, 1.2 GHz, 2 GHz, up to 5 GHz
• Preamplifier options (R&S®FSW-B13, R&S®FSW-B24) for enhanced sensitivity
• WCDMA ACLR dynamic range: 88 dB with noise cancellation
• High sensitivity down to -120 dBm (1 Hz) at 2 Hz
– Typical Applications
• Complex wideband signal analysis
• High-performance oscillator development
• Radar system verification
• Production testing and quality assurance

















