Spectrum Analyzers


From Troubleshooting to Complex RF Testing Powered by Keysight Technologies
​

A spectrum analyzer is an instrument used to measure and visualize the frequency spectrum of electrical signals. It helps engineers and technicians analyze signal strength, identify interference, evaluate harmonics, and troubleshoot RF and wireless systems.

Keysight spectrum analyzers deliver high accuracy, wide frequency coverage, and advanced analysis capabilities. Whether for lab-based design validation, field troubleshooting, or complex wireless testing, Keysight instruments provide reliable performance for capturing and interpreting RF signals.

Key Uses & Functions of Spectrum Analyzers

Frequency Analysis

Measure and display the amplitude of signals across a range of frequencies to identify spectral content.

Harmonics and Spurious Signal Detection

Detect unwanted signal components, harmonics, and spurious emissions that may affect system performance.

Wireless Communication Testing

Analyze modulated signals and evaluate signal quality for wireless standards like LTE, 5G, and Wi-Fi.

Real-Time Spectrum Monitoring

Capture transient or intermittent signals that traditional swept analyzers might miss.

Power Measurements

Measure signal power accurately across frequency ranges to ensure compliance and optimal performance.

Interference and Noise Analysis

Identify and characterize sources of electromagnetic interference or noise in complex systems.

Automated Testing and Data Logging

Integrate with software to perform repetitive measurements and log results for analysis and reporting.

Types of Spectrum Analyzers by Keysight

Explore the most common Keysight spectrum analyzers available on Tekmark.

Basic Spectrum Analyzers

Entry-level analyzers for cost-effective spectrum testing and monitoring.

 

  • Provide essential spectrum analysis features for general RF testing.
  • Suitable for educational labs, small-scale testing, and basic troubleshooting.
  • Simple interface for quick measurements.

Example Models: N9321C, N9324C

X-Series Signal Analyzers

High-performance analyzers for lab and design validation.

 

  • Support advanced modulation analysis for wireless communications like 5G, LTE, and Wi‑Fi.
  • Cover wide frequency ranges up to millimeter-wave bands.
  • Deliver highly accurate and precise measurements for R&D and design validation.
  • Series: PXA, MXA, CXA, UXA, EXA

Modular PXI Analyzers

Compact, modular analyzers for automated test systems.

 

  • Flexible PXI-based instruments for integration into automated setups.
  • Enable scalable measurements for RF and microwave applications.
  • Ideal for high-throughput production and lab automation.

FieldFox Handheld Analyzers

Portable RF analyzers for field troubleshooting and maintenance.

 

  • Rugged design suitable for harsh environments.
  • Battery-operated for on-site testing without external power.
  • Provide versatile RF measurements including spectrum, network, and cable analysis.

See our Full Range of Keysight Products on E-Shop!

SHOP NOW

Why Choose Keysight Spectrum Analyzers?

High Accuracy and Reliability

Keysight analyzers provide precise frequency and amplitude measurements, ensuring trustworthy results in both lab and field applications.

Wide Frequency Coverage

From low-frequency RF to millimeter-wave signals, Keysight instruments support a broad spectrum of applications for wireless, radar, and communication systems.

Advanced Analysis Features

With capabilities like real-time spectrum analysis, modulation analysis, and automated measurements, Keysight helps engineers efficiently troubleshoot and validate complex signals.

Flexible and Scalable Solutions

Available in portable, benchtop, and modular formats that can adapt to fieldwork, lab environments, or automated testing setups.

Frequently Asked Questions (FAQs)

What is a spectrum analyzer used for?

A spectrum analyzer measures and displays the frequency content of electrical signals, which helps identify signal strength, interference, and harmonics.

Can spectrum analyzers detect intermittent signals?

Yes, Keysight spectrum analyzers with real-time spectrum capability can capture transient or short-duration signals that swept analyzers might miss.

Are Keysight spectrum analyzers suitable for 5G testing?

Absolutely, X-Series analyzers and selected FieldFox models support 5G NR measurements, modulation analysis, and other advanced wireless testing requirements.

What is a FieldFox Handheld Analyzer?

A FieldFox Handheld Analyzer is a portable, battery-powered RF and microwave measurement instrument from Keysight Technologies that is designed for field testing and troubleshooting. It combines spectrum, network, and cable analysis in a rugged, easy-to-use device suitable for on-site applications.

What is the difference between basic and modular PXI analyzers?

Basic spectrum analyzers provide essential measurement functions for cost-effective testing, while modular PXI analyzers integrate into automated test systems and offer scalable measurement capabilities.

Why should I buy Keysight spectrum analyzers from Tekmark?

As a leading authorized distributor of Keysight Technologies, Tekmark offers genuine Keysight instruments, expert guidance, and local support to ensure you get the right analyzer for your application.

Grow Your Vision With Tekmark

GET IN TOUCH

Table of Contents

→ Table of Contents