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Tektronix TTR503A Vector Network Analyzer

Tektronix TTR503A Vector Network Analyzer

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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.

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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 measurements with the accuracy and confidence you expect from Tektronix, all without breaking your budget.

Key performance specifications
  • 100 kHz to 6 GHz frequency range
  • > 122 dB dynamic range
  • -50 to +7 dBm output power
  • < 0.008 dB RMS trace noise
Key features
  • Full 2-port 2-path S-parameter measurement (S11, S21, S12, S22) in a variety of formats.
  • Complete vector network analysis capability with Tektronix VectorVu-PC™ software.
  • Built-in bias tee accessible on both ports to bias active devices.
  • Application programming interface (API) for Microsoft Windows environment and LabView driver.
  • Robust SCPI command interface (compatible with current VNA models) to optimize code migration.
  • Touchstone file support (import/export) for use with Electronic Design Automation (EDA) simulation tools.
  • Offline simulation mode for analysis of S-parameter files when disconnected from the instrument.
  • Industry-leading three year warranty.
  • Time domain with gating.
  • Automatic calibration support.
  • Antenna matching and tuning
  • RF component design and validation
  • Education

Benchtop performance at a fraction of the cost

The TTR500 offers industry-leading price and performance. With more than 122 dB dynamic range and less than 0.008 dB RMS trace noise, the TTR500 has performance similar to expensive, conventional benchtop VNAs.


Compact and transportable: Take test where you need it

Gone are the days when you had to roll a cart with a heavy, shared VNA. Weighing under 3.5 lbs (1.59 kg), the TTR500 has a form factor small enough to fit in a briefcase. With a price tag to match, you can put a VNA on every engineering bench to improve efficiency and uptime. In a classroom, students can get hands-on experience with industry standard test instrumentation.


Performance, size, reliability, affordability – choose four

The TTR500A series VNA includes an impressive array of technological and patented advances that allowed us to bend many of the traditional trade-offs between RF performance, size, reliability, and cost.

Performance: Inside the VNA is a tightly integrated, single-board design. At its core lies a proprietary ASIC that implements all of the transmitting and receiving functions. Along with decades of experience in RF front-end and shielding design, this integration allowed us to implement advanced DSP and patented error correction techniques that dramatically improve measurement accuracy and dynamic range.


Convenience: Traditional benchtop VNAs have a computer inside that typically becomes obsolete by the time the product hits the market. Our architecture enables significant improvements in size, cost, and reliability by communicating over USB to your PC, while adding additional benefits and convenience. For example, run VectorVu-PC with other applications, share data seamlessly, and save individual application setups on your PC when multiple users share the TTR500.

Size: A compact single-board design without heavy input and display components allows the TTR500 to pack a lot of powerful functionality in a tablet-sized frame. Store it in a drawer, pack it in your briefcase, or carry it on a plane. Take quality test and measurement technology wherever you need it.

Reliability: In addition to reduced part count, integration on a singleboard consumes less energy than traditional benchtop VNAs. The board generates less heat, resulting in lower component stresses and higher reliability. A fanless design provides a quieter operation. We back all of this with a three year warranty.

Affordability: With fewer parts and an integrated design, we created a handheld VNA that delivers traditional benchtop performance and convenience at an unrivaled price. Why settle for less?

Integrated bias tee for active devices

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. Power the bias tee directly through BNC connectors on the rear panel.


Complete line of affordable accessories

To simplify shopping for the complete VNA solution, Tektronix offers a range of accessories for high-accuracy measurements. Select from calibration kits (electronic and mechanical), phase-stable cables, adapters, attenuators, rackmount, rugged carry case, and a training kit. See Ordering Information for a full list of available accessories.


Full 2-port 2-path S-parameter measurements


An independent RF source and three RF receivers for each port of the TTR500 enable you to take high-accuracy magnitude and phase measurements with a 1-port or 2-port device under test (DUT). Use the TTR500 to perform complete S11, S12, S21, and S22measurements of the DUT and display data in a variety of formats (see measurement functionality table).

VectorVu-PC measurement functionality

Sweep types Measured parameters
Frequency (linear or log)
S11, S12, S21, S22
Absolute receiver level
Data display formats Channel/trace functions
Logarithmic magnitude
Linear magnitude
Expanded phase
Group delay
Smith chart
Up to 16 channels
Up to 16 traces/channel
Up to 9 markers/trace + reference marker
Memory math
Save/load state, calibration, and trace data
Calibration Trigger
Response (Reflection/Transmission)
Enhanced response
Full 1-port SOL
Full 2-port SOLT
User-defined calibration kit
Electronic calibration
SCPI command
Sweep modesAll specifications listed in this document have been tested in Normal mode. Fast mode provides faster sweeps at the cost of reduced accuracy or increased uncertainty. Analysis tools
Limit line test
Ripple limit test
Bandwidth test
Time domain with gating

Rapid measurement and analysis with VectorVu-PC

VectorVu-PC (available as free download) features an industry-standard interface that minimizes the learning curve so you have more time to test your design. The software delivers a traditional look and feel to control and calibrate the instrument, while providing touchscreen compatibility for Windows PC, laptop, or tablet. For automated test systems, we include a SCPI programming interface that is compatible with common legacy VNAs. A LabView driver is also available for analysis and control. See the TTR500 programmer manual for more information.


Offline simulation mode for convenient data analysis

VectorVu-PC features a simulation mode to analyze S-parameter data when disconnected from the TTR500. Capture measurements at the test site and analyze the data anywhere. Share it with your team or class when access to the TTR500 is limited.

Compatibility with EDA simulation tools

VectorVu-PC supports the Touchstone (S1P, S2P) file format to import and export S-parameter data in the simulation mode. You can also share data in this format with common EDA simulation tools.

Accelerate test with electronic calibration support

The Tektronix TCAL™ 500 makes calibration of Tektronix vector network analyzers fast, easy, and accurate. Cut calibration time down to roughly half the time compared to using traditional mechanical calibration kits. What normally takes 8 connections and 8 button-presses with a traditional cal kit, takes only 2 connections and 1 button press with the TCAL™ 500. The TCAL™ 500 is ideal for integration on production lines or R&D labs where speed, repeatability, and accuracy are critical.


Time domain measurements with gating

Time domain (TDR) measurements are supported as a field-upgradeable software license option to allow for S-parameter data to be analyzed in the time-domain. This is useful for detecting and locating faults in cables and transmission lines, analyzing impedance variations in connectors and traces, gating out the effects of fixtures and in-line elements, or simplifying filter tuning. Various supported modeled stimulus types include bandpass, lowpass impulse, and lowpass step.

Tektronix: A name you can trust

For over 70 years, Tektronix has delivered industry-leading solutions to the people who drive technological progress. We maintain unrivaled standards of quality, reliability, service, and support with every product, like free access to our Technical Support Centers around the world.

Tektronix TTR503A Vector Network Analyzer

Tektronix TTR503A VNA – Datasheet

Software license options
License; Time Domain with Gating software for VVPC/TTR500; Node Locked
License; Time Domain with Gating software for VVPC/TTR500; Floating
Power plug options
Opt. A0
North America power plug (115 V, 60 Hz)
Opt. A1
Universal Euro power plug (220 V, 50 Hz)
Opt. A2
United Kingdom power plug (240 V, 50 Hz)
Opt. A3
Australia power plug (240 V, 50 Hz)
Opt. A5
Switzerland power plug (220 V, 50 Hz)
Opt. A6
Japan power plug (100 V, 50/60 Hz)
Opt. A10
China power plug (50 Hz)
Opt. A11
India power plug (50 Hz)
Opt. A12
Brazil power plug (60 Hz)
Opt. A99
No power cord
Service options
Opt. C3
Calibration Service 3 Years
Opt. C5
Calibration Service 5 Years
Opt. D1
Calibration Data Report
Opt. D3
Calibration Data Report 3 Years (with Opt. C3)
Opt. D5
Calibration Data Report 5 Years (with Opt. C5)
Opt. G3
Complete Care 3 Years (includes loaner, scheduled calibration, and more)
Opt. G5
Complete Care 5 Years (includes loaner, scheduled calibration, and more)
Opt. R5
Repair Service 5 Years (including warranty)
Opt. R5DW
Repair Service Coverage 5 Years (includes product warranty period). 5-year period starts at time of instrument purchase

Three year warranty

Carrying case and rackmount
Description Name
TTR500 Carrying case TTR500TRANSIT
TTR500 Rackmount kit TTR500RACK

Additional information




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