Siglent SNA6122A 100kHz – 13.5 GHz 2-Port, 135 dB VNA + DRA
The SNA6122A adds Direct Receiver Access to the 100 kHz–13.5 GHz, 2-port platform: source, reference and measurement paths are broken out for higher power, external amplifiers and advanced setups. With 135 dB dynamic range, up to 100,001 points and a 12.1-inch touch UI, it suits demanding amplifier, filter and signal-integrity work, and grows with spectrum, pulse, TDR and material-measurement options.
Product overview
The SNA6122A is a high-end 2-port vector network analyzer covering 100 kHz to 13.5 GHz with Direct Receiver Access (DRA), with more than 135 dB of dynamic range, very low trace noise (0.005 dB rms) and a large 12.1-inch touchscreen. It measures full and differential S-parameters, receiver and time-domain parameters, with up to 100,001 points and an output level from −55 to +10 dBm.
Built on a modular, integrated architecture, the SNA6122A scales from R&D to production: add spectrum analysis, pulsed-RF, scalar-mixer, material-measurement and enhanced time-domain (TDR) options, expand to 24 ports with the SSM, and calibrate with mechanical or electronic kits to 26.5 GHz — including imported and user-defined kits. Direct Receiver Access breaks out the source, reference and measurement paths for higher power handling, external amplifiers and advanced measurement configurations.
Key highlights
100 kHz – 13.5 GHz, 2-port
Full S-parameter, differential and time-domain measurement across 2 ports with direct receiver architecture.
135 dB dynamic range
Over 135 dB dynamic range with very low trace noise (0.005 dB rms, 0.012° rms) for accurate weak-signal analysis.
1 Hz res · up to 100,001 pts
1 Hz frequency resolution, an IF bandwidth from 1 Hz to 10 MHz and up to 100,001 measurement points.
Direct Receiver Access (DRA)
Source, reference and measurement paths are broken out for higher power, external amplifiers and advanced configurations.
Modular & scalable
A modular, integrated architecture — expand to 24 ports with the SSM and add SA, PM, TDR, TDA and MT options.
12.1-inch touchscreen
A large capacitive touchscreen with HDMI/DVI-D/DisplayPort video out and full SCPI/LXI remote control.
Core capabilities
Full multi-port S-parameters
Measure S-parameters, differential parameters and receiver data with magnitude and phase — with an output level from −55 to +10 dBm and up to 100,001 points.
Advanced calibration
Response, enhanced-response, full 1-/2-/3-/4-port and TRL calibration, with mechanical and electronic kits to 26.5 GHz — plus imported and user-defined kits.
Time-domain, TDR & de-embedding
Time-domain analysis, TDR/TDT, eye-diagram and jitter (options), with impedance conversion, fixture simulation and adapter removal/insertion.
Spectrum, pulse, mixer & material
Optional spectrum analysis, pulsed-RF, scalar-mixer and material-measurement modes turn the VNA into a complete RF characterisation platform.
Multiport expansion
A single SSM expands the output to 24 ports for automated test systems and production lines, raising throughput and cutting test cost.
Modern connectivity
LAN, USB device & host (USB-GPIB), HDMI/DVI-D/DisplayPort video and SCPI/LabVIEW/IVI remote control over USB-TMC, VXI-11, Socket, Telnet and web server.
Features in depth
High dynamic range & precision
High dynamics enable more precise and reliable measurements — critical across research, development and production. With a dynamic range of over 135 dB, the SNA6000A excels at the detailed analysis of weak signals even when they appear alongside much stronger ones, making it ideal for measuring filters with low insertion loss and high stopband attenuation. High dynamics also minimise signal distortion to improve signal integrity, and increase calibration accuracy where the effect of cables and adapters must be reduced. Very low trace noise (0.005 dB rms, 0.012° rms) and a −135 dBm/Hz noise floor keep results tight and repeatable.
Advanced calibration
Calibration is critical for high-accuracy network analysis. The SNA family supports a broad range of mechanical and electronic calibration kits up to 26.5 GHz, for both general-purpose and precision-level requirements, together with advanced calibration methods that improve ease-of-use while delivering best-in-class accuracy. Response, enhanced-response, full 1-, 2-, 3- and 4-port and TRL calibration are all supported. Siglent protects your investment by allowing the import of calibration kits from other manufacturers as well as fully customer-defined kits, so an existing kit or an unusual connector type is rarely a barrier.
Built-in spectrum analysis
Integrating spectrum analysis into a vector network analyzer opens up expanded possibilities — especially in the development and testing of high-frequency amplifiers, oscillators and communication systems. Available as the SNA6000-SA option, it allows precise analysis of harmonics, intermodulation products and other nonlinear effects, while simultaneously optimising signal quality and bandwidth utilisation in communication applications. Combining VNA and spectrum analysis in one instrument saves both space and cost, and enables deeper, more comprehensive signal characterisation without switching tools.
Fast, accurate pulsed-RF measurement
The SNA6000A can be extended with pulsed measurement (SNA6000-PM), which is particularly advantageous when characterising high-frequency components under real operating conditions — as in radar and communication systems. This method makes it possible to analyse the behaviour of components with short pulses, precisely evaluate fast switching operations and optimise performance in time-critical applications. Because bias-tee and pulse hardware are built in as standard, the platform is ready for pulsed-RF work with minimal additional setup.
Time-domain analysis & TDR
With the SNA6000-TDA and SNA6000-TDR options, time-domain reflectometry extends the VNA to comprehensively diagnose and characterise signal paths, lines and cables. Eye diagrams can be generated — crucial for evaluating signal integrity in digital communications — and the combination of TDR and VNA enables jitter analysis to investigate the temporal stability of signals. Both functions are of particular interest in high-speed digital development, where locating discontinuities and validating interconnects quickly saves significant time.
Extend the power to multiport devices
A single SSM (switch-matrix module) unit can expand the output to 24 ports and integrate easily, adapting readily to automated test systems and production-line scenarios. The multiport measurement capability of the VNA improves test throughput and thereby significantly reduces device test costs. Typical applications include the design, verification and production of antennas and data-converter interfaces, and the automated test of RF components and other multiport devices.
Panels & connectivity
A 12.1-inch touchscreen and 2 test ports up front; LAN, USB, GPIB, trigger, reference and HDMI/DVI-D/DisplayPort video at the rear.
Connectivity
- 12.1-inch capacitive touchscreen
- 2 test ports · direct receiver access
- Internal bias-tees (standard)
- LAN — remote control & web server
- USB Host (USB-GPIB) & USB Device
- Video out — HDMI · DVI-D · DisplayPort
- 10 MHz reference & trigger
- SCPI · LabVIEW · IVI remote control
Where it is used
RF filters & components
Q-factor, bandwidth and insertion loss of filters, couplers and passive networks with 135 dB range.
Antennas & arrays
Return loss, matching and multiport characterisation of antennas and phased-array elements.
Amplifiers & active devices
Gain, matching and — with pulsed-RF — real-condition testing of amplifiers and active parts.
Signal integrity & interconnects
Time-domain, TDR, eye-diagram and jitter analysis for high-speed digital links and cables.
Materials & dielectrics
Material-measurement option for permittivity and permeability characterisation of substrates.
Production & ATE
Multiport SSM expansion, save/recall and remote control for high-throughput production test.
In the box
Every SNA6122A ships with the standard accessories below.
Options & licences
Full multi-port calibration, S-parameter, differential and time-domain measurement are standard. These options expand the SNA6122A into a complete RF characterisation platform — software licences activate by key. Limited offer: buy the SNA6000-TDR and get the SNA6000-TDA licence free. See the full SNA6000A licence page.
Adds a spectrum-analyzer mode for harmonics, intermodulation, channel power and nonlinear analysis of amplifiers, oscillators and comms systems.
Time-domain transformation, windowing and gating to characterise devices from both the time and frequency domains.
Full TDR/TDT with fault location, eye-diagram simulation and jitter injection for high-speed signal-integrity work.
Characterise frequency-converting devices; combined with the switch matrix, expand testing to multiport and mixer applications.
Pulsed-RF characterisation for components under real operating conditions — radar, comms and time-critical applications.
Measure permittivity and permeability of materials and substrates directly from the VNA. Requires the KWR42A waveguide calibration kit.
A high-stability OCXO reference source (hardware module) for improved frequency stability and phase-noise performance across the SNA6000A range.
You’ll need a calibration kit
A vector network analyzer is only as accurate as its calibration. The SNA6122A does not include a calibration standard — pair it with a mechanical or electronic (ECal) kit rated to your frequency so you can measure to a trusted reference plane. The SNA family even accepts imported and user-defined kits.
Browse calibration kits & ECal
A VNA measures relative to its calibration plane. Calibration removes the errors of the cables, adapters and connectors between the instrument and the device under test — essential above 10 GHz.
Mechanical (SOLT/TRL) kits and one-connection ECal modules to 26.5 GHz, plus imported other-brand and fully user-defined kits — your existing kit usually works.
Re-calibrate when cabling, span, power or temperature changes, so a good kit is used constantly across the SNA6122A's working range.
Specifications
- Frequency range
- 100 kHz – 13.5 GHz
- Test ports
- 2
- Dynamic range
- 135 dB
- Trace noise
- 0.005 dB rms · 0.012° rms
- Noise floor
- −135 dBm/Hz (8–20 GHz)
- Output level
- −55 dBm to +10 dBm
- Frequency resolution
- 1 Hz
- Level resolution
- 0.05 dB
- IF bandwidth
- 1 Hz – 10 MHz
- Number of points
- 2 to 100,001
- Sweep types
- Linear · log-frequency · power · CW-time · segment
- Direct Receiver Access
- Standard (source, reference & measurement loops)
- Calibration
- Response, enhanced response, full 1-/2-/3-/4-port, TRL · mechanical & electronic kits to 26.5 GHz · imported & user-defined
- Measurements
- S-parameter · differential · receiver · time-domain · limit · ripple · impedance conversion · fixture simulation · adapter removal/insertion · spectrum · frequency offset · scalar mixer · pulse · material (options)
- Display
- 12.1-inch capacitive touchscreen
- Video output
- HDMI · DVI-D · DisplayPort
- Interfaces
- LAN · USB device · USB host (USB-GPIB)
- Bias-tee
- Internal (standard)
- Remote control
- SCPI · LabVIEW · IVI (USB-TMC / VXI-11 / Socket / Telnet / WebServer)
- Options
- SA · TDA · TDR · SSM · PM · MT (licences); SSM multiport to 24 ports
Specifications are guidance only — the official Siglent datasheet is the definitive reference. Software licences are delivered electronically and excluded from the 14-day EU return right once the key has been issued.
Compare the SNA6000A series
Eight models across 13.5 and 26.5 GHz, 2 and 4 ports, in standard and Direct Receiver Access (DRA) versions.
| Model | Frequency | Ports | DRA | Price | |
|---|---|---|---|---|---|
| SNA6022A | 100 kHz – 13.5 GHz | 2 | — | €34,135 | View → |
| SNA6122A THIS MODEL | 100 kHz – 13.5 GHz | 2 | €38,935 | current | |
| SNA6024A | 100 kHz – 13.5 GHz | 4 | — | €45,985 | View → |
| SNA6124A | 100 kHz – 13.5 GHz | 4 | €55,585 | View → | |
| SNA6032A | 100 kHz – 26.5 GHz | 2 | — | €43,385 | View → |
| SNA6132A | 100 kHz – 26.5 GHz | 2 | €48,185 | View → | |
| SNA6034A | 100 kHz – 26.5 GHz | 4 | — | €55,895 | View → |
| SNA6134A | 100 kHz – 26.5 GHz | 4 | €65,495 | View → |
Ready to order the SNA6122A?
In EU stock, shipped from the Netherlands with full warranty, ISO/DKD calibration and expert support. Not sure which model or options you need? Ask our RF specialists.