Siglent SigVSA Vector Signal Analysis Software
Bring professional-grade vector signal analysis to your desktop.
SigVSA supports both Windows and Linux, allowing you to analyze signals repeatedly and identify issues quickly and efficiently.
From basic BPSK to complex wideband technologies including FHSS, OFDM, 4G LTE, 5G NR, Wi-Fi 6/7 (802.11ax/be), and up to 4096QAM, it covers all your measurement needs in one powerful tool.
Siglent SigVSA
Professional vector signal analysis on your PC. Analyse recorded waveforms offline or control your Siglent instruments live — demodulating LTE, 5G NR/NR-NTN, Wi-Fi, Bluetooth, UWB and custom signals with up to 8 GHz analysis bandwidth.
Analyse signals without tying up the bench
SigVSA brings the measurement and analysis power of a vector signal analyser to your computer. Export a waveform from your instrument and analyse it offline — repeatedly, at your desk — to troubleshoot tricky signals without occupying the lab. It uses the same platform and interface as Siglent's on-instrument vector analysis, so it feels instantly familiar.
When you need live data, SigVSA searches the network, connects to one or more Siglent instruments and acquires waveforms directly — even controlling multiple instruments in parallel and consolidating the results on one PC. From simple BPSK to 4096QAM and the widest cellular and Wi-Fi standards, it covers modern RF design and debug end-to-end.
One tool, every modern standard
Add the demodulation options you need — each is a licence on top of the base platform.
5G NR / NR-NTN
Demodulate 5G NR and NR-A, plus non-terrestrial-network (NR-NTN) signals.
LTE / LTE-A (FDD & TDD)
Full 4G LTE and LTE-Advanced demodulation in both FDD and TDD modes.
WLAN 802.11 b/a/g/n/ac/ax/be
Wi-Fi analysis from legacy 802.11b through Wi-Fi 6E and the latest 802.11be.
Bluetooth
Bluetooth 1.0 through 5.4, classic and low-energy demodulation analysis.
HRP-UWB
High-rate-pulse ultra-wideband (HRP-UWB) analysis across multiple bandwidths.
Custom IQ & digital modulation
General digital modulation from BPSK to 1024QAM, 4096QAM and 16/32APSK.
Frequency-hopping / FMCW
Capture and analyse frequency-hopping and chirp signals over time.
Measurement metrics
- Signal power & reference power
- Frequency offset error
- Clock error
- Delay offset
- RMS EVM & peak EVM
- Single-channel EVM
- and more
Run up to 32 measurements simultaneously with the VSAA2 option.
Display & analysis views
- Time-domain graphs
- Frequency-domain graphs
- Vector-error frequency-domain curves
- Vector-error time-domain curves
- Constellation diagrams
- Multi-window display
Modulations from BPSK to 1024QAM, 4096QAM and 16/32APSK.
Ordering information
The standard configuration is included in the base SigVSA. For the optional standards, click an order number to open the shop with that option pre-selected, or tell us your targets and we’ll quote the right licence bundle.
| Name | Description | Order number |
|---|---|---|
| Standard configuration | ||
| Basic Vector Signal Analysis | Spectrum analysis and IQ analysis — the core platform. | SIGV-VSAA1 Included |
| Custom OFDM modulation analysis | General OFDM signal demodulation analysis. | SIGV-VSAO1 Included |
| Digital modulation analysis | General digital modulation signal demodulation analysis. | SIGV-VSAD1 Included |
| Options | ||
| 32-measurement vector signal analysis | Run up to 32 measurements simultaneously. | SIGV-VSAA2 |
| LTE/LTE-A FDD modulation analysis | LTE/LTE-A FDD demodulation analysis. | SIGV-VSAL1 |
| LTE/LTE-A TDD modulation analysis | LTE/LTE-A TDD demodulation analysis. | SIGV-VSAL2 |
| 5G NR / NR-A modulation analysis | NR / NR-A demodulation analysis. | SIGV-VSAN1 |
| 5G NR-NTN modulation analysis | NR-NTN (non-terrestrial network) demodulation analysis. | SIGV-VSAN2 |
| WLAN 802.11 b/a/g/n/ac/ax | Wi-Fi demodulation analysis (legacy to Wi-Fi 6E). | SIGV-VSAW1 |
| WLAN 802.11be | Wi-Fi 7 (802.11be) demodulation analysis. | SIGV-VSAW2 |
| HRP-UWB modulation analysis | HRP-UWB with various bandwidths. | SIGV-VSAU1 |
| Bluetooth modulation analysis | Bluetooth demodulation analysis. | SIGV-VSAB1 |
| Frequency-hopping signal analysis | Frequency-hopping signal analysis. | SIGV-VSAF1 |
| Coming soon | ||
| NB-IoT downlink modulation analysis | SIGV-VSAG3 | |
| FMCW (chirp) signal analysis | SIGV-VSAF2 | |
| GSM / EDGE modulation analysis | coming soon | |
Order numbers and options from the official SigVSA datasheet; subject to change. More options are added over time.
Get SigVSA
Build your SigVSA licence
Tell us which standards you work with — LTE, 5G NR, Wi-Fi, Bluetooth, UWB — and we’ll quote the right SigVSA base and option bundle, with EU support.
Frequently asked questions
What is Siglent SigVSA?
SigVSA is a professional vector signal analysis software for the PC. It lets you analyse signals offline from recorded waveform files and control instruments remotely for live acquisition — covering everything from simple BPSK to wideband 4G LTE, 5G NR/NR-NTN, Wi-Fi, Bluetooth and HRP-UWB.
How does it get the signal data?
Two ways: offline — export a waveform file from your analyser and import it into SigVSA on the PC; or live — SigVSA searches the network, connects to one or more Siglent instruments and acquires data directly. It can control multiple instruments in parallel and consolidate data on one computer.
Which standards can it demodulate?
LTE/LTE-A (FDD & TDD), 5G NR/NR-A and NR-NTN, WLAN 802.11 b/a/g/n/ac/ax/be, Bluetooth (1.0–5.4), HRP-UWB, custom OFDM and general digital modulation, plus frequency-hopping analysis. Each standard is a licensable option (see the ordering table).
What is included as standard, and what is optional?
The standard configuration is the Basic Vector Signal Analysis (SIGV-VSAA1) platform plus Custom OFDM (VSAO1) and Digital modulation (VSAD1) analysis. The cellular, Wi-Fi, Bluetooth, UWB and frequency-hopping standards are add-on options activated by licence.
What measurements and views does it provide?
Over ten metrics (EVM, signal/reference power, frequency & clock error, delay offset and more) and over ten views (spectrum, time-domain, constellation, vector-error curves, multi-window). With the VSAA2 option it runs up to 32 measurements simultaneously.
What analysis bandwidth is supported?
Up to 8 GHz analysis bandwidth for specified signals — suitable for the widest modern wideband standards.