TTR500 Series Vector Network Analyzer (VNA)

TTR500 Series Vector Network Analyzer (VNA)

A Vector Network Analyzer (VNA) is an electrical test instrument that uses a known Continuous Wave (CW) signal to measure the magnitude and phase response of Radio Frequency (RF) and microwave components, systems, and sub-systems in both design and manufacturing applications. It is an important test instrument that helps make wireless devices possible.

The Tektronix TTR500 Series 2-port, 2-path vector network analyzer gives RF design and validation engineers, education professionals, and manufacturing organizations the ability to accelerate their time-to-market by reducing prototype iterations and making everyday measurements with accuracy and confidence.

Frequency Range

Up to 6 GHz

Dynamic Range

>122 dB

Trace Noise

<0.008 dBrms

Output Power

-50 to +7 dBm

Vector Network Analyzer advantages


A VNA allows you to measure complex quantities such as reflection coefficients, impedance, admittance, return loss, insertion loss, gain, isolation, and much more in a manner that is not possible with other test instruments.

Traditional test equipment such as power meters, spectrum analyzer, and oscilloscopes typically only have receivers that are used to measure signals emitted or created by the Device Under Test (DUT). In contrast, a VNA has both a source and a set of receivers used to determine changes to the stimulus caused by the DUT. The stimulus-based test approach allows VNAs to measure very small reflections and changes to the stimulus enabling you to accurately characterize any RF component in real-world environment and test conditions.

Who uses Vector Network Analyzers?


RF design and validation engineers use VNAs to validate their design simulations.

Manufacturing engineers assemble and test RF components and devices based on a certain set of specifications. Vector Network Analyzers are used to quickly and accurately validate the performance of the RF components and devices.

Education professionals train the next generation of engineers with standard industry test instrumentation.

VNA application examples:

  • Antenna matching and tuning
  • Filter measurements
  • Amplifier measurements
  • Radio Frequency (RF) cable and connector measurements
  • 75 Ohm characteristic impedances
  • Automated production testing

Smart innovations, reduced cost and size


The TTR500 Series VNA tightly integrates six RF receivers and two RF sources into a proprietary ASIC. With its innovative architecture and patented technology, the TTR500 Series VNA achieves the same level of performance as a benchtop VNA, but at 40 percent lower cost and one-seventh the size and weight of units with comparable performance.


  • Frequency Range: 100 kHz up to 6 GHz
  • Dynamic Range: Greater than 110 dB
  • Trace Noise: Less than 0.012 dBrms
  • Output Power: -50 to +7 dBm
  • Built-in bias tee accessible on both ports to bias active devices

Learning curve? There is none


It's simple. Our industry-standard interface allows you to spend less time getting up to speed, so you'll have more time to test your design. The VectorVu-PC software delivers a traditional look and feel for controlling and calibrating the instrument with any Windows PC or laptop. For automated test systems, programmatic support is offered for common legacy VNAs for easy integration into existing test systems.


  • Run VectorVu-PC in offline mode to analyze stored data
  • Output file format compatible with common EDA simulation tools
  • SCPI command compatible with common legacy VNA



Model Frequency Range Ports Dynamic Range List Price Buy Online
TTR503A 100 KHz - 3 GHz Two ports, type-N female connectors >122 dB
Configure & Quote
TTR506A 100 KHz - 6 GHz Two ports, type-N female connectors >122 dB
Configure & Quote
Model TTR503A
Frequency RangePortsDynamic Range
100 KHz - 3 GHzTwo ports, type-N female connectors>122 dB
Model TTR506A
Frequency RangePortsDynamic Range
100 KHz - 6 GHzTwo ports, type-N female connectors>122 dB
Model Frequency Range Ports Dynamic Range List Price Buy Online
TTR503A 100 KHz - 3 GHz Two ports, type-N female connectors >122 dB
Configure & Quote
TTR506A 100 KHz - 6 GHz Two ports, type-N female connectors >122 dB
Configure & Quote
Model TTR503A
Frequency RangePortsDynamic Range
100 KHz - 3 GHzTwo ports, type-N female connectors>122 dB
Model TTR506A
Frequency RangePortsDynamic Range
100 KHz - 6 GHzTwo ports, type-N female connectors>122 dB
Keysight ENA
Anritsu Shockline
Rohde & Schwarz
Frequency Range 100 kHz - 3.0 GHz 100 kHz - 3.0 GHz 1 MHz - 8.0 GHz 9 kHz - 6.0 GHz
100 kHz – 6.0 GHz 100 kHz - 6.5 GHz
Dynamic Range (dB) >122 117 100 > 115
Trace Noise (dBrms) < 0.008 0.005 0.006 < 0.005
Output Power -50 to +7 dBm -20 to 0 dBm -20 to -3 dBm -50 to 0 dBm
Bias Tee (internal) Yes No No No
Weight (lbs.) 3.5 24 4.8 15.4


Antenna Matching and Tuning


You built your antenna and transceiver. Now you want to see how well it performs. Minimize costly signal reflections and maximize signal range by testing for impedance mismatches or discontinuities in your system using the TTR500 VNA. Thanks to its USB design and easy to use interface, the TTR500 makes analyzing impedances or admittances on the Smith chart and saving S-parameter files, for the purpose of designing matching networks, seamless and convenient.


  • Measure S-parameters in Log Magnitude, Phase, SWR, impedance, and admittance formats
  • Smith chart markers in impedance, admittance, phase, real, and imaginary
  • Conveniently import/export S-parameter files in Touchstone (.sNp) file format directly to your PC
  • Save traces to memory for comparison with live results

Filter Measurements


You have a filter to test and you want to see low loss and high rejection at the correct frequencies. While other types of test equipment can measure overall performance, VNAs allow the user to fully characterize filters within their intended operating frequency and power level, allowing for complete comparisons to design simulations. The TTR500 VNA is capable of measuring return loss, insertion loss, group delay and much more for both tuning and validating filter performance.


  • Tune and characterize filters by measuring return loss, insertion loss, group delay and much more
  • Simplify test procedures by taking advantage of automated bandwidth and notch measurements
  • Optimize dynamic range and measurement speeds by adjusting IFBW from as low as 10 Hz to 300 kHz
  • Measure high dynamic range cavity filters using the TTR500's >122 dB dynamic range

Amplifier Measurements


Your amplifier has to deliver sensitivity to a receiver, and high power as an output. The TTR500 allows you to fully characterize amplifier performance for comparing to design simulations. Use the built-in bias tee (standard in both models) to provide a DC bias to active devices without the expense and complication of external circuitry. Unlike some other USB-based VNAs, the TTR500 series VNA is capable of measuring both passive and active devices including medium to low-power amplifiers.


  • Measure amplifier impedance match, gain, phase, group delay, and isolation
  • Built-in bias tee accessible on both ports to conveniently bias active devices
  • Capable of a wide range of output power levels for determining P1dB compression points
  • Source and Reciever Calibration for higher precisision power measurements

RF Cable and Connector Measurements


If you have a pile of cables or connectors and you want to characterize their S-parameters, or if you simply want to know if they're any good, you can with the TTR500 series VNA. Capable of measuring as much as 40 dB of return loss, the TTR500 series VNA has the calibration and measurement performance required to properly characterize these important RF components.


  • Characterize RF cables and connectors with as much as 40 dB return loss
  • Calibrate once, and measure for a week: less than 0.1 dB of drift over 90 hours
  • Built-in functions such as Port Extension allow for properly dialing in calibration planes
  • Simplify test procedures by saving and recalling calibration state files

Automated Production Testing


You need fast, accurate, and stable network readings. Automate the process of measuring DUTs to verify that they're built right, tune it if it isn't, or characterize test fixture losses to remove them from your measurement. The TTR500 series VNA provides performance, accuracy, and reliability, with a significantly lower cost of ownership compared to similar performing used and outdated VNA competitors. In addition, similar to other traditional benchtop VNAs, the TTR500 series VNA is SCPI code compatible, allowing you to migrate existing VNA test code.


  • Extremely low cost of ownership compared to competition
  • Robust SCPI command interface (compatible with current VNA models) to optimize code migration
  • Programmable in C/C++, Python, MatLab, LabView, etc. via SCPI code through TekVISA or NI VISA
  • Rack mount kit, availale separately, holds either one or two instruments in a rack

Ideal for Education


Don't let the small form-factor fool you. Designed with a robust, industry-standard user interface, more than 122 dB dynamic range, and up to 6 GHz frequency range, the TTR500 series VNA is the perfect instrument for preparing the next class of engineers. And with its extremely affordable price, more students can have hands-on time with a real-world instrument.


  • Full suite of 2-port 2-path VNA capabilities
  • Industry-standard and recognizable user interface
  • Import/export S-parameters in Touchstone (.sNp) file format
  • Offline mode well suited for out-of-lab assignments


VectorVu-PC software brings benchtop features to the TTR500 series VNA.

The TTR500 series operates with VectorVu-PC, a powerful program that is the basis of Tektronix vector network analyzers. The software controls the vector network analyzers acquisition and updates measurement displays continuously, at the direction of the user.

VectorVu-PC (available as a free download) features an industry-standard interface that minimizes the learning curve so you have more time to test your device under test.


  • Traditional VNA look-and-feel and features for controlling and calibrating the instrument, all conveniently from the user’s Windows PC or tablet.
  • Optimized for touchscreen
  • Programmable in C/C++/C#, Python, MATLAB, LabView, and more via a SCPI programming interface, compatible with common legacy VNAs.
  • LabView driver available

Complete line of affordably priced accessories


Tektronix offers a variety of robust accessories to simplify your shopping for the complete VNA solution. Accessories available include a rugged carrying case, rack mount kits, rugged phased-stable cables, attenuators, adapters and calibration kits.


  • Wide variety of calibration kits
  • Rugged, phase stable cables in a variety of sizes and types
  • Adapters, coaxial, 50 Ohm with a variety of connector sizes and types


Introduction to Vector Network Analyzers Basics
VNA BasicsThis paper discusses why VNAs are used and how they are unique compared to other RF test equipment
Literature number: 70W_60918_0
Primer 15 Oct 2018
Vector Network Analyzer Fundamentals
Poster that shows types of measurement errors, Basic VNA operation, Smith chart basics, Common S-parameter names, VNA calibration methods and more.
Literature number: 61077-0
Poster 15 Oct 2018
What is a Vector Network Analyzer and how does it work?
What is a Vector Network Analyzer (VNA)? Vector Network Analyzers are used to test component specifications and verify design simulations to make sure systems and their components work properly together.
Primer 03 Oct 2018
TTR500A Series Custom Calibration Kit
You can use a custom calibration kit as long as you know the calibration standards.You can create a calibration kit in VectorVu by following the steps below: You add a calibration kit to the VNA by selecting an empty kit and modifying it. You can also use…
FAQ ID: 724046 28 Sep 2018
TTR500A Calibration
Yes, calibration needs to be done on the TTR500A series before use. Before making measurements with a VNA, you calibrate the VNA to reduce errors that can affect measurements. When you calibrate a VNA, you perform a mathematical correction to the…
FAQ ID: 724036 28 Sep 2018
Does the TTR500A series have De-Embedding Capability
The TTR500A does not have built in de-embedding capability, however the user could save .SNP files and post process the data in order to de-embed the DUT.
FAQ ID: 724031 28 Sep 2018
Does the TTR500A series have port extension capability.
The TTR500A series does support port extensions. An online tutorial on how to perform the port extension is shown in the below link.  How to Perform Port Extension
FAQ ID: 724026 28 Sep 2018
Standard accessories that ship with TTR500A series:
The Standard Accessories that ship with TTR500A series are:      071-3486-00        TTR500A Series Installation/Safety Manual      119-8763-01        Power Supply AC-DC, Desktop; 90-264VAC 47-63HZ,       -                           Power Cord      174-…
FAQ ID: 470711 01 May 2018
What are the differences between the TTR506A and TTR506A option LE?
The primary differences between the TTR506A LE and TTR506A are the dynamic range is lower (> 110 dB vs. > 122 dB), the trace noise magnitude is higher (< 0.012 dB RMS vs. < 0.008 dB RMS) and the trace noise phase is higher (< 0.05 vs. <…
FAQ ID: 467576 06 Mar 2018
VectorVu-PC Vector Network Analysis Software - CANDIDATE V1.2.4
VectorVu-PC vector network analysis software is the analysis engine for the TTR500A Series VNAs, enabling you to: ● Perform live network analyses on your PC when connected to the TTR503A or TTR506A over USB2.0. ● Perform offline analyses of saved data and…
Part number: 066192402
Vector Network Analyzers
TTR500 Series Datasheet Legendary support and quality meets ease-of-use and affordability. The Tektronix TTR500 series 2-port, 2-path VNA is our latest breakthrough - an unmatched combination of measurement performance and convenience. Get the power to make everyday measurement…
Literature number: 70W-61132-0
TTR500 Series
This document provides information about controlling the TTR500 Series Vector Network Analyzers (VNAs) through a programmatic interface.
Part number: 077125700
This document contains instructions for assembling the TTR500RACK rackmount kit for installation of TTR500 Series Vector Network Analyzers into a standard 19-inch equipment rack.
Part number: 071349201
Field Install Instructions
VectorVu-PC Vector Network Analysis Software - V1.0.3

Part number: 066191600
VectorVu-PC Vector Network Analysis Software - CANDIDATE V1.0.5

Part number: 066192401

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