The R&S FSL is a lightweight and compact spectrum analyzer that is ideal for a large number of applications in development, production and service. Despite its compact size, it offers functions typical of high-end spectrum analyzers, ensuring an excellent price and performance ratio.

• FSL3: 9 kHz to 3 GHz
• FSL6: 9 kHz to 6 GHz
• NEW - FSL18: 9 kHz to 18 GHz (overrange to 20 GHz)
• Resolution bandwidth 300 Hz to 10 MHz, opt. to 10 Hz
• Optional tracking generator
• I/Q demodulation bandwidth of 20 MHz (28 MHz with FSL18)
• Best RF performance in its class
• High measurement accuracy
• Optional internal battery pack
• Unique plug & play upgrade ability
• Electronic RF switching mechanism
• Standard 100BaseT LAN remote control interface
• Channel Power Measurement
• Adjacent and Multicarrier Adjacent Channel Power Measurement
• Fast ACP
• Time Domain Power Measurement (Burst Power)
• C/N, C/N0
• Occupied Bandwidth
• Modulation Depth Measurement (AM%)
• Scalar Network Analysis
• Complete Range of Detectors
• Selectable Number of Trace Points
• Frequency Counter
• Noise and Phase Noise Markers
• RRC and Channel Filters
• LAN and USB 1.1 Interfaces
• Gated Sweep (Optional)
• Power Measurement with R&S NRP Power Sensor (Optional)