Discover the Frequency Response Analyzer


Bode analysis made simple

Measure the frequency response of your system in both magnitude in phase. The Frequency Response Analyzer (FRA) makes system characterization easier than ever.

Measure complex transfer functions

Use vector measurements across fundamental and harmonics to characterize non-linear effects.

Perform multi-channel analysis

Probe up to four systems simultaneously, or up to four ports on one system.

Characterize resonant behavior

Find open- and closed-loop transfer functions for power supply stability analysis and more.

Easy to use, easy to share

Customize your analysis with a wide range of settling and averaging times, one-touch normalization to remove cable spurs, and a configurable math channel. Drag-and-drop cursors to rapidly measure exact values. Once you're done testing, save the data and share it on the cloud with your teammates.


With the Frequency Response Analyzer, you can make common frequency response measurements at a fraction of the cost of other solutions, all with the power of 10+ additional instruments built in. Perform measurements such as:

• Impedance measurements
• Open- and closed-loop plant characterization
• Stability analysis
• Power supply analysis
• EMI filter characterization


We've got you covered


Impedance Measurements

A guide to measuring impedance with the Moku Frequency Response Analyzer.


S-Parameter Measurement with the Frequency Response Analyzer

RF system analysis focusing on reflected signal minimization to provide greater efficiency and signal strength.


Power Supply Stability

Perform power supply stability measurements using Moku:Lab.

About Liquid Instruments

Liquid Instruments delivers modern, software-defined test and measurement solutions that provide advanced capabilities, a great user experience, and custom programmability for maximum flexibility and performance in a range of applications.

Compare hardware platforms

The Frequency Response Analyzer runs on Moku:Go, Moku:Lab, and Moku:Pro. Compare the instrument specs to choose the right device for your application.