The Rohde & Schwarz FSL3 is a compact spectrum analyzer spanning 9 kHz to 3 GHz, delivering high-end measurement capabilities in a portable platform. Built for development, service, and production environments, it combines precise spectral analysis with fast measurement speed and intuitive operation. The instrument achieves excellent price-performance value without compromising on dynamic range or functional depth, making it ideal for cost-conscious labs requiring professional-grade analysis across RF and microwave frequencies.
Technical Specifications
• Frequency Range: 9 kHz to 3 GHz
• Analysis Bandwidth: Up to 28 MHz
• Resolution Bandwidth Range: 10 Hz to 10 MHz or 1 Hz to 10 MHz
• Displayed Average Noise Level (DANL): Typically -162 dBm, -152 dBm, or -160 dBm (depending on frequency band)
• Third Order Intercept (TOI): Typically +18 dBm or +15 dBm
• Phase Noise: Typically -103 dBc (1 Hz) at 10 kHz offset
• RF Attenuator: Step-adjustable in 5 dB increments
• Maximum Dynamic Range: 95 dB
• Sweep Speed: Over 80 sweeps/s in zero span mode, including remote data output
• I/Q Demodulation Bandwidth: Up to 28 MHz
– Key Features
• Direct access to primary functions via fixed-assignment keys; secondary functions accessible through softkeys and tables
• Channel Power, Adjacent Channel Power, and Fast ACP measurements
• Burst power (time-domain) analysis with integrated C/N and C/N0 measurement capability
• Occupied Bandwidth and AM modulation depth measurement
• Scalar network analysis and frequency deviation measurement
• Multisummary marker function for simultaneous time-domain level capture in single sweep
• Complete detector suite with selectable trace point resolution
• Integrated frequency counter and phase noise markers
• RRC and channel filter options
• Optional preamplifier (R&S FSL-B22) for dynamic range enhancement
• Tracking Generator available up to 3 GHz
– Typical Applications
Channel power characterization, adjacent channel interference analysis, modulation quality assessment, burst signal evaluation, network scalar measurements, and frequency stability verification across commercial and industrial RF bands.
