Used Keysight EquipmentPremium Keysight Signal Analyzers for Uncompromising Test Precision
You Want Advanced Signal Analysis, But:
You can’t afford to wait for month-long delivery.
Budget constraints put premium test equipment out of reach
You are not sure about used equipment quality
Every Day Without Proper Test Equipment Could Cost You:
- Up to $25,000 in lost engineering productivity
- Missed market opportunities while competitors move forward
- Compliance failures from inadequate signal characterization
Here’s What You Get from Buying Used Signal Analyzers Directly from the OEM
- You Skip the Queue
Get the test equipment you need without the wait. We deliver fast, so you can move forward without project delays or constant follow-ups. - You Know Your Data Is Right
Buying from the Keysight Used Equipment Store removes the guesswork from borderline measurements. Our analyzers deliver reliable results, so you can make important design decisions with confidence. - You Upgrade Without Overpaying
Enjoy the same superior measurement experience as users of brand-new equipment without the associated financial strain.
More Features for the Same Budget
Get a higher-end model with advanced capabilities for the same cost as a basic new unit.
Trade-In Opportunity
Get credit for existing equipment, further maximizing your test budget.
See all Keysight's Signal Analyzers in stock
Used Keysight Signal Analyzers
The Perfect Fit in Your Industry
510 MHz analysis bandwidth
Analyze carrier aggregation across 5G systems in full detail
-174 dBm/Hz DANL
Detect and troubleshoot low-level interference in crowded RF environments
Real-time spectrum analysis up to 50 GHz
Capture and identify transient signal issues in milliseconds
Multi-touch interface with multi-window display
Monitor multiple test parameters simultaneously
2 Hz to 50+ GHz frequency range
Test entire satellite communication systems with a single instrument
Spurious-free dynamic range >75 dB
Identify stealthy signals in electronic warfare applications
Time-gated spectrum analysis
Precisely characterize pulsed radar signals by frequency components
EMC/EMI precompliance testing with CISPR detectors
Reduce costly compliance testing iterations
Specialized V2X (Vehicle-to-Everything) measurement applications
Validate wireless communication reliability
Advanced triggering on CAN, LIN, and FlexRay signals
Debug automotive network issues efficiently
Multiple measurement channels
Test ADAS radar and communication systems simultaneously
Proven Industry Leadership to Accelerate Your Progress
Our Equipment Is Chosen by Industry Leaders
Keysight is the global innovation partner for high-growth industries. Our equipment and solutions are trusted by industry leaders to accelerate innovation and create, optimize, and monitor with more confidence.
Hands-On With the Infiniium MXR-Series Real-Time Oscilloscopes
The Infiniium MXR-Series oscilloscopes are your window into the intricate interactions of complex designs. Offering illuminating views of all your crucial signals, the MXR-Series helps you go from symptom to root cause to resolution in minutes instead of hours. Buy what you need today and add more to your MXR-Series oscilloscope later.
Feature-Packed Signal Analyzers
Detect Signal Anomalies Others Miss
Detect the Faintest Signals Even in Challenging RF Environments
- -174 dBm/Hz displayed average noise level (DANL)
- Up to 510 MHz analysis bandwidth
- Superior spurious-free dynamic range (SFDR)
- Real-time spectrum analysis capabilities
- Exceptional phase noise performance
Up to 5-Year OEM Warranty
Unmatched Protection Only Available Directly from Keysight
Only Keysight offers extended warranty options up to 5 years on used signal analyzers. This exceptional coverage reflects our absolute confidence in our equipment and gives you complete peace of mind. All of our Premium Used units undergo our comprehensive 101-point inspection and factory calibration before shipping to your lab.
Key Specifications
Frequency Range
2 Hz – 50 GHz
Analysis Bandwidth
1 Ghz
DANL
-171 dBm/Hz
Phase Noise
-136 dBc/Hz
TOI
+25 dBm
Resources
Documentation to master your Keysight equipment
N9021A MXA Signal Analyzer
N9030B PXA X-Series Analyzer, Multi-Touch
N9032B PXA-X Series Signal Analzyer, Multi-Touch
N9040B UXA Signal Analyzer
N9042B UXA Signal Analyzer
N9048B UXA Signal Analyzer
V3050A Signal Analyzer Frequency Extender
Evolve Your Testing Capabilities
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Advantages of Buying Used from Keysight
Frequently Asked Questions
Can we trade in our existing equipment when purchasing used signal analyzers?
Yes, maximize your testing budget with our trade-in program:
- Credit your old equipment toward new purchases
- We handle all logistics and pickup arrangements
- Available for both Keysight and non-Keysight equipment
- Environmentally responsible disposal guaranteed
We offer additional discount packages when combining trade-ins with multiple purchases.
In your quote request, name the devices you would like to trade in. We will be in touch with more information as soon as possible.
What is the difference between a signal analyzer and an oscilloscope?
These instruments analyze different signal domains:
- Oscilloscopes measure voltage changes over time (time domain)
- Signal analyzers examine frequency components (frequency domain)
- Oscilloscopes excel at timing analysis and transients
- Signal analyzers reveal spectral content and modulation characteristics
However, modern high-end scopes may include basic frequency analysis capabilities.
What is the difference between a spectrum analyzer and a signal analyzer?
Signal analyzers offer expanded capabilities beyond spectrum analysis:
- Spectrum analyzers show amplitude vs. frequency only
- Signal analyzers add demodulation and deeper signal characterization
- Signal analyzers include time-domain analysis capabilities
- Signal analyzers support wider analysis bandwidth for complex signals
Keysight's X-Series offers both options depending on your measurement needs.
How do I choose the right signal analyzer for my application?
We suggest matching these key parameters to your testing requirements:
- Frequency range must cover the signals of interest
- Analysis bandwidth needs to accommodate your widest signals
- Dynamic range determines ability to measure small signals near larger ones
- Noise floor affects detection of low-power signals
- Application-specific software for standardized tests
Your account manager can provide personalized recommendations for your specific needs.
Don’t have an account manager yet? Click on any signal analyzer, request a quote, and someone will be in touch as soon as possible.
Can signal analyzers detect intermittent signals?
Yes, specific models like the N9040B UXA offer capabilities for capturing transient events:
- Real-time spectrum analysis for momentary signals
- Gap-free processing to minimize missed events
- Density display shows occurrence probability
- Configurable triggering captures specific signal characteristics
- Multi-touch interface for rapid configuration
Models with wider analysis bandwidth provide better performance with complex signal environments.
How important is phase noise performance in signal analyzers?
Phase noise is critical for many advanced applications:
- Determines ability to measure signals close to carriers
- Essential for characterizing high-performance oscillators
- Vital for radar and communication system testing
- Directly impacts measurement accuracy of closely-spaced signals
- Crucial for millimeter-wave and 5G testing applications
Our N9040B UXA for example offers phase noise performance suitable for these demanding measurement scenarios.
What are the key specifications to consider when buying a signal analyzer?
Focus on these critical performance parameters:
- Frequency range must cover your test signals
- Analysis bandwidth for complex signal characterization
- DANL (displayed average noise level) for sensitivity
- Phase noise performance for close-in measurements
- Measurement applications for standards compliance
- Connectivity options for system integration
Consider future needs as testing requirements frequently evolve.
What maintenance or calibration schedule is recommended for used signal analyzers?
For optimal performance and reliability:
- Annual calibration is standard industry practice
- Self-calibration routines should be run monthly
- Performance verification before critical measurements
- Preventive maintenance every two years
- More frequent calibration for high-accuracy applications
Keysight offers flexible KeysightCare calibration plans to ensure continued accuracy.
Can I connect the signal analyzer to my existing test equipment setup?
Yes, Keysight signal analyzers are designed for test system integration:
- Industry-standard connectivity options
- Compatible with common test automation environments
- Designed for seamless integration with other instruments
- Multiple interface options for flexible system design
- Reference clock connections for multi-instrument synchronization
Contact our technical team for specific connectivity details for your model of interest.
What software applications are included with used signal analyzers?
Base configurations include essential measurement applications:
- Standard spectrum analysis capabilities
- Basic digital modulation analysis
- Noise figure measurements
- Phase noise analysis
- Channel power and adjacent channel power
- Occupied bandwidth measurements
Optional application-specific software packages are available for standards-based testing requirements.
Talk to your account manager to find out more.
Need More Answers?
Explore our FAQs for more information.
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