R&S FSL Spectrum Analyzer

Source: Rohde & Schwarz GmbH & Co. KG

R&S FSL Spectrum Analyzer

The Spectrum Analyzer R&S FSL is an extremly lightweight and compact analyzer with a wide range of applications in development, service and production. It offers functions that up to now have only been provided by high end spectrum analyzers and therefore has an excellent price/performance ratio. The R&S FSL is the only instrument in its class that provides a tracking generator up to 6 GHz and a demodulation bandwidth of 20 MHz. The graphical user interface shows the R&S FSL's similarity to the R&S FSU and the R&S FSP at a glance.

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Product Description:

  • Frequency range 9 kHz to 3/6 GHz, with or without tracking generator
  • IQ demodulation bandwidth 20 MHz
  • DANL -152 dBm
  • Total measurement uncertainty <0.5 dB
  • Weight <7 kg
  • Internal battery option
  • Measurement routines for: TOI, OBW, time domain power, CCDF, (A)CP and more
  • Bandwidth range 1 Hz to 20 MHz


The spectrum analyzer R&S FSL leads its class with respect to its large number of standard functions:

  • Full choice of detectors: max, min, auto-peak, sample, RMS, average, quasi-peak CP/ACP/fast ACP measurement functions with a host of predefined standards (see ACP screenshot)
  • Time domain power measurement
  • Measurement of carrier-to-noise ratio C/N or C/N0 referenced to 1 Hz or channel bandwidth
  • CCDF: measurement of crest factor and amplitude probability function
  • Automatic test routines for Occupied bandwidth (OBW), Third order intercept point (TOI), AM modulation depth and Harmonic distortion measurement
  • Adjustable number of trace points, max. 32001
  • Editable limit lines including PASS/FAIL indication
  • Level units:- dBm, dBµV, dBmV, dBµA, dBpW, V, W, A
  • Frequency counter featuring resolution of 1 Hz with measurement time of 50 ms
  • Phase noise and noise marker with dBm/Hz and dBc/Hz results
  • n-dB down functionality for fast determination of bandwidth
  • Channel filters, shape factor <2, 300 Hz to 5 MHz, optional 100 Hz to 5 MHz, including for example 8.5 kHz, 12.5 kHz, 150 kHz, 192 kHz, 1 MHz, 1.5 MHz
  • EMI filters: 200 Hz (optional), 9 kHz, 120 kHz, 1 MHz (6 db)
  • FFT filters from 300 Hz to 30 kHz, optional 1 Hz to 30 kHz
  • Tracking generator
  • Gated sweep (optional)
  • LAN interface, VXI11 compatible for remote control
  • USB interface
  • Help functions
  • Operating system: Embedded Windows XP (Easy documentation of measurements, Remote desktop functionality, Compatibility with printer drivers, network, etc.)
  • Power measurements with R&S NRP power sensors
  • Transducer factor
  • Support LXI

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Rohde & Schwarz GmbH & Co. KG