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Rohde & Schwarz FSL3 9 kHz – 3 GHz Spectrum Analyzer

Rohde & Schwarz FSL3 9 kHz – 3 GHz Spectrum Analyzer

Product Documentation


The Rohde & Schwarz FSL3 9 kHz – 3 GHz Spectrum Analyzer is an extremely lightweight and compact spectrum analyzer for cost-conscious users who want the functionality of high-end instruments. The analyzer is ideal for a large number of applications in development, service and production.

With phase noise of typ. –103 dBc (1 Hz) at 10 kHz from the carrier, a third order intercept point of typ. +18 dBm, a bandwidth range from 10 Hz to 10 MHz, and a displayed average noise level (DANL) of typ. –162 dBm, the Rohde & Schwarz FSL3 9 kHz – 3 GHz Spectrum Analyzer compares favorably with high-end analyzers. This makesit very useful in production, service, field use and in labs. The RF attenuator, which is adjustable in steps of 5 dB, and the optional preamplifier ensure an optimum usable dynamic range.

The Rohde & Schwarz FSL3 9 kHz – 3 GHz Spectrum Analyzer’s high speed of >80 sweeps/s in zero span, including remote output of data (or trace data), ensures high production throughput. Even a simple level calibration can be streamlined and accelerated with the R&S FSL’s integrated complex measurement functions – a special multisum mary marker measures different levels in the time domain in a single sweep. This eliminates reset and remote control overhead time.

Applications for the Rohde & Schwarz FSL3:

  • WiMAX
  • CDMA2000/1xEV-DO
  • IEEE 802.11 a/b/g/n
  • IEEE 802.15.1 Bluetooth
  • RFID
  • MBMS
  • DVB-C
  • EMI Analysis
  • NFC Device Analysis

Configurable Options for the Rohde & Schwarz FSL3:


  • R&S FSL-B4: OCXO Reference Frequency (standard with the R&S FSL18)
  • R&S FSL-B5:  Additional Interfaces
  • R&S FSL-B6: TV Trigger
  • R&S FSL-B7: Narrow Resolution Filters
  • R&S FSL-B8: Gated Sweep
  • R&S FSL-B10: GPIB Interface
  • R&S FSL-B22: RF Preamplifier (3/3 GHz)
  • R&S FSL-B30: DC Power Supply, 12 V to 28 V
  • R&S FSL-B31: NiMH Battery Pack (requires R&S FSL-B30)


  • R&S FSL-K7: AM/FM/φM Measurement Demodulator
  • R&S FSL-K8: Transmitter Measurements for Bluetooth® V2.0 and EDR
  • R&S FSL-K9: Power Sensor Support (requires R&S®FSL-B5 or R&S®NRP-Z3/4 and R&S®NRP-Zxx power sensor)
  • R&S FSL-K14: Spectrogram Measurements
  • R&S FSL-K20: Cable TV Measurements
  • R&S FSL-K30: Application Firmware for Noise Figure and Gain Measurements (requires R&S®FSL-B5 and preamplifier)
  • R&S FSL-K72: 3GPP FDD BTS Application Firmware
  • R&S FSL-K82: CDMA2000 Base Station Analysis
  • R&S FSL-K84: 1xEV-DO Base Station Analysis
  • R&S FSL-K91: WLAN Transmitter Measurements for IEEE 802.11a, b, g, j
  • R&S FSL-K91n: Upgrade of R&S®FSL-K91 to IEEE 802.11n
  • R&S FSL-K92: WiMAX IEEE 802.16 OFDM Application Firmware
  • R&S FSL-K92U: WiMAX IEEE 802.16 OFDM/OFDMA Application Firmware R&S®FSL-K93
  • R&S ES-SCAN: EMI Analysis software
  • R&S FS-K112PC: NFC Measurement Software