The Rohde & Schwarz FSP3 is a high-performance spectrum analyzer that delivers precise RF and microwave signal analysis across 9 kHz to 3 GHz. Built for research, development, and production testing, it combines advanced digital signal processing with fully digital resolution bandwidths down to 1 Hz. The instrument achieves -155 dBm DANL at 1 Hz RBW and phase noise of -113 dBc/Hz at 10 kHz offset (500 MHz center frequency), enabling detection and characterization of weak signals in complex RF environments.
Technical Specifications
• Frequency Range: 9 kHz to 3 GHz
• Resolution Bandwidth: 1 Hz to 10 MHz (fully digital to 100 kHz)
• Displayed Average Noise Level: -155 dBm @ 1 Hz RBW
• Amplitude Range: DANL to +30 dBm
• Phase Noise: -113 dBc/Hz @ 10 kHz offset (500 MHz); -125 dBc/Hz @ 1 MHz offset
• Measurement Uncertainty: 0.5 dB
• Sweep Time: 2.5 ms (frequency domain); 1 µs (time domain)
• Measurement Speed: Up to 80 measurements/second; 55 GPIB measurements/s frequency domain; 80 GPIB measurements/s time domain
• Display: 21 cm TFT color display
– Key Features
• EMI bandwidths and quasi-peak detector included
• RMS detector for digitally modulated signals
• Digital filters with <0.2 dB logarithmic level deviation; Gaussian, RRC, and channel filter options
• TOI, ACPR, OBW, CCDF, APD, and multi-carrier measurements
• Automatic test routines for TOI, OBW, phase noise, and ACP(R)
• Internal reference frequency with optional OCXO module (FSP-B4) for improved stability
– Typical Applications
• Adjacent channel power and occupied bandwidth characterization
• Third-order intercept and intermodulation testing
• Phase noise and spectral purity analysis
• Modulation quality assessment via CCDF and APD
• EMI/RFI compliance and diagnostics
– Compatibility & Integration
• Standard interfaces: GPIB, RS-232-C, Centronics
• Optional LAN connectivity
• USB support
• External 10 MHz reference input
