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Spectrum Analyzers

See the real performance of your device with industry-leading spectrum analysis tools that help you:
  • Address evolving test needs—from unbounded in R&D to just enough in manufacturing—with diverse hardware platforms
  • Accomplish deeper troubleshooting or one-button measurements with the broadest set of application-specific software
  • Get results you can trust based on proven measurement science and a commitment to measurement integrity, whether you are optimizing your test for performance or throughput
  • Achieve greater longevity of your test assets with upgradeable analyzer features and performance
Only Keysight extends the longevity of your spectrum analyzer by enabling you to increase frequency range as your needs evolve

Make inspired connections: be ready to easily link cause and effect

Capture every signal: carry precision with you into the field

Taking the Mystique Out of Millimeter Waves & Unlocking New Insights

Compare Series/Products

Series / Products Frequency DANL @1 GHz Maximum Analysis Bandwidth Phase Noise @1 GHz (10 kHz offset) Maximum Real-Time Bandwidth Typical Price*
Real-Time Spectrum Analyzers (RTSA)
Real-Time Spectrum Analyzers (RTSA)
An option for new instruments or upgrades
10 Hz to 50 GHz -172 dBm/Hz to -166 dBm 255, 510 MHz to 1 GHz -129 dBc/Hz 85 MHz to 510 MHz US$ 81,593
N9040B-RT2 Real-Time Analysis up to 510 MHz, Optimum Detection, Multi-touch n/a -171 dBm 510 MHz n/a 510 MHz n/a
N9030B-RT2 Real-time Spectrum Analysis up to 510 MHz, Optimum Detection, Multi-touch n/a -171 dBm 510 MHz n/a 510 MHz n/a
This series contains additional products.
expand series: 2 products


 X-Series Measurement Applications for Signal/Spectrum Analyzers
X-Series Measurement Applications for Signal/Spectrum Analyzers
  • See and understand more with ready-to-use measurements
  • Ensure proper measurements and repeatable results with built-in expertise and simplified operation
  • Available on a new instrument or as a post-purchase upgrade
 PathWave Vector Signal Analysis (89600 VSA)
PathWave Vector Signal Analysis (89600 VSA)
  • Comprehensive demodulation & vector signal analysis
  • Decode & verify MAC, RLC & RRC-layer messages across multiple radio frames
  • Cellular, wireless connectivity, aerospace, defense, general-purpose
 Productivity Software
Productivity Software
  • Connect and control instruments with simple to use software
  • Single and multi-instrument control and sequencing
  • Install, transport and manage licensing
  • Calibration and adjustment capability


 Smart Harmonic Mixers
Smart Harmonic Mixers
  • Auto LO amplitude adjustment to compensate cable loss
  • Vector correction data: magnitude and phase
  • Auto LO alignment at start up, Auto set default frequency and LO harmonic
  • USB plug-and play connection
 Noise Sources
Noise Sources
  • Simplify measurement setup with noise sources that work with the X-Series signal analyzers
  • Improve your setup time with automatic download and storage of ENR data
  • Enhance measurement accuracy with temperature sensing capabilities
 More Signal and Spectrum Analyzer Accessories
More Signal and Spectrum Analyzer Accessories
Simplify test setups and get the best possible measurement results
  • Provide high performance broadband down-conversion of millimeter-wave signals
  • Accurately measure the power of RF and microwave signals
  • Utilize the outdoor portable monitoring system, various accessory kits, probes, cables and more

* Prices for: United States. Prices are subject to change without notice. Prices shown are Manufacturer's Suggested Retail Prices (MSRP). Prices shown are exclusive of taxes.