C4409 4-Port 9 GHz Analyzer, Frequency Extension Compatible

C4409 Vector Network Analyzer delivers industry-leading dynamic range and sweep speed, with all the features engineers have come to expect included standard in our software. This VNA is frequency extender compatible and is the anchor network analyzer for the CobaltFx frequency extender system.


This “full rack” vector network analyzer with dimensions of 14″ x 17.3″ x 3.8″ (355 x 440 x 96 mm) and a weight of just 22 lbs. (10 kg), can be ised in the laboratory and in production testing, without requiring a lot of space. The VNA can be integrated into production test system via Manufacturing Test Plug-in. Auxiliary Board Option is available on all Cobalt VNAs at the time of order (factory-installed) or as an add-on at a later date.


C4409 VNA includes an RF measurement module and S4 software application which runs on Windows or Linux operating system on a PC, laptop, tablet, or x86 board computer connecting to the measurement hardware via USB interface. S4 software can be installed on multiple computers that share the use of the analyzer measurement module.


VNAs and ACMs are delivered with factory calibration certificates containing no data. The add-on option for ISO17025/Z540-1 Accredited, Traceable Calibration Certificate and Uncertainties is available and needs to be specified at time of order.

Cobalt 9 GHz C4409 USB VNA network analyzer specifications













9 GHz Cobalt VNA Data Sheet  |  Extended Specification Sheet

Applications of the C4409 include SAW and BTS filter tuning, RF component design and testing, on-wafer probing, field testing, insertion loss measurement, distance to fault measurements, antenna matching, quality control, material measurements, and many others.


View our Applications page to see how CMT VNAs are already extending the reach of engineers in many industries and applications.


If you want to consult with our engineers about your specific application, please Ask an Engineer.

The C4409 VNAs come with all the software features engineers have come to expect, at no additional cost. Standard software features include:

  • Linear/logarithmic sweeps with multiple trace formats
  • Power sweeps
  • Time domain and gating conversion
  • Frequency offset mode
  • Fixture simulation (embedding/de-embedding)
  • 16 independent channels with up to 16 traces each
  • Markers with marker search tools and marker math, various conversion algorithms, and limit tests for pass/fail criteria, etc.
  • Test Automation programming in LabView, Python, MATLAB, .NET, etc.


CMT’s Manufacturing Test plugin is available to integrate the VNA into your production test system.



9 GHz Cobalt VNA Data Sheet  |  Extended Specification Sheet


S2 & S4 Programming Manual (COM)  |  S2 & S4 Programming Manual (SCPI)  |  S4 Operating Manual


S4 VNA Windows Software  |  S4 Windows Software Release Notes  |  S4 VNA Linux Software

Testing Automation

Programming Examples  |  Programming Guides  |  S4 LABView Drivers


Automatic Fixture Removal (AFR)  |  Manufacturing Test

CobaltFx System Delivers Accurate and Repeatable mmWave Measurements

VNA Measurement of S-parameters in a Pulsed RF System

Frequency Extension System Solution - Farran Technology