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R&S®FSW
Flagship signal and spectrum analyzer (2 Hz – 90 GHz, 8.3 GHz analysis bandwidth)
- Category: Signal and spectrum analyzer (flagship)
- Manufacturer: Rohde & Schwarz
- Frequency range: 2 Hz – 8 / 13.6 / 26.5 / 43.5 / 50 / 67 / 85 GHz (model dependent)
- Phase noise: typ. –136 dBc/Hz (1 GHz, 10 kHz offset); typ. –133 dBc/Hz (10 GHz, 10 kHz offset)
- Maximum analysis bandwidth: 8.312 GHz (upgradeable)
- Internal analysis bandwidth options: 40 MHz / 80 MHz / 160 MHz / 320 MHz / 512 MHz / 1.2 GHz / 2 GHz / 4.4 GHz / 8.312 GHz
- Real-time analysis bandwidth: up to 800 MHz, POI ≤ 15 µs
- Display: 12.1" high-resolution multitouch display, Windows 10 user interface
- Resolution bandwidth (RBW): up to 80 MHz (option required)
- Measurement dynamic range: Best sensitivity and dynamic range on the market, for outstanding EVM measurements
- Interfaces: Digital baseband interface, analog baseband input, USB, external mixer extension to 325 GHz
- Reference frequency: Internal reference as standard, optional OCXO high-precision reference (FSW-B4)
- Operating system: Windows 10 (64-bit)
- Data sheet: Download PDF
- Product brochure: Download PDF
- External link: Official product page
Product overview
The R&S®FSW signal and spectrum analyzer is the flagship measurement platform from Rohde & Schwarz, built for verifying complex communications systems and characterizing RF and microwave components. With unparalleled low phase noise (typ. –136 dBc/Hz at 1 GHz, 10 kHz offset) and best-in-class sensitivity, the FSW is used across 5G NR, radar, satellite, aerospace and defense work. Internal analysis bandwidth extends to 8.3 GHz and real-time analysis bandwidth reaches 800 MHz with a POI of ≤ 15 µs, while the 12.1" multitouch display and Windows 10 user interface keep the measurement itself quick to set up. Frequency coverage starts at 2 Hz and reaches 8 GHz to 85 GHz depending on model, extending beyond 325 GHz with external mixers — setting standards for innovation and usability in signal analysis.
Key features
- Lowest phase noise on the market: typ. –136 dBc/Hz (1 GHz, 10 kHz offset) and –133 dBc/Hz (10 GHz, 10 kHz offset), for the best possible EVM accuracy
- Very wide internal analysis bandwidth: upgradeable to 8.312 GHz, capturing wideband 5G NR, millimeterwave radar and satellite signals whole
- Real-time spectrum analysis: 800 MHz bandwidth with POI ≤ 15 µs, catching brief bursts and interference events reliably
- 12.1" multitouch display: a high-resolution, direct user interface with Windows 10 integration and a built-in SCPI recorder that simplifies code generation
- Wide frequency coverage: 2 Hz to 85/90 GHz in one box, extended to 325 GHz with external harmonic mixers for millimeterwave and sub-THz work
- A deep catalogue of measurement applications (K options): 5G NR (K144/K145), pulse analysis (K6), vector signal analysis (K70), WLAN 802.11 (K91 family), radar FMCW and hopping (K60 family) and more, all on one instrument
- Digital and analog baseband interfaces (FSW-B17/B71): connect directly to a vector signal generator for efficient closed-loop testing
- External mixer extension: FS-Z60 to FS-Z325 harmonic mixers cover 40 GHz to 325 GHz for aerospace and defense millimeterwave measurements
Typical applications
- 5G NR physical layer signal analysis and EVM measurements (sub-6 GHz and millimeterwave FR2)
- Radar signal characterization: pulse measurements, FMCW automotive radar, phase-coded radar verification
- Satellite RF test: payload characterization, uplink and downlink signal quality verification
- Real-time spectrum monitoring: interference detection, capture of hopping signals, spectrum occupancy analysis
- Vector signal analysis: demodulation of digitally modulated signals and system error vector measurements
- Aerospace and defense: electronic warfare (EW) signal analysis, SIGINT, millimeterwave component characterization
Configure your R&S®FSW
Pick a base model and its options, watch your order list build as you go, then send it for a quote in one click. Every order number (Order No.) comes from Rohde & Schwarz factory data.
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Hardware options
35 options
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Software options (K-options)
74 options
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PC software
32 options
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Accessories
15 optionsAvailable models / variants
This series comes in the 7 model variants below. Click Request a quote to ask KanTek for the full specifications and a price for the model you need.
| Model | Specification | |
|---|---|---|
| R&S®FSW8 (1331.5003.08) | 2 Hz – 8 GHz / 512 MHz | Request a quote → |
| R&S®FSW13 (1331.5003.13) | 2 Hz – 13.6 GHz / 512 MHz | Request a quote → |
| R&S®FSW26 (1331.5003.26) | 2 Hz – 26.5 GHz / 2 GHz | Request a quote → |
| R&S®FSW43 (1331.5003.43) | 2 Hz – 43.5 GHz / 8.312 GHz | Request a quote → |
| R&S®FSW50 (1331.5003.50) | 2 Hz – 50 GHz / 8.312 GHz | Request a quote → |
| R&S®FSW67 (1331.5003.67) | 2 Hz – 67 GHz / 8.312 GHz | Request a quote → |
| R&S®FSW85 (1331.5003.85) | 2 Hz – 85/90 GHz / 8.312 GHz | Request a quote → |
Frequently asked questions
Yes. KanTek Technology is the authorized Taiwan distributor for Rohde & Schwarz, supplying new R&S®FSW instruments with factory quotations and technical advice.
Instrument rental is launching soon. R&S®FSW is part of the line-up being prepared, and advance enquiries are welcome.
Yes. KanTek provides calibration and repair for R&S®FSW, with calibration performed by a partner laboratory, to keep the instrument accurate and available.
Use Request a quote on this page, or call +886-2-2999-7719. KanTek replies within 24 hours with pricing, lead time and the options that suit your application.
R&S®FSW is a Rohde & Schwarz product: Flagship signal and spectrum analyzer (2 Hz – 90 GHz, 8.3 GHz analysis bandwidth). Contact KanTek for selection or application advice.
Authorized R&S distributor
Repair and calibration services
Instrument rental, launching soon
Reply within 24 hours
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