
UTS3000A-VSA Vector Signal Analysis Demodulation Option
Overview
The UTS3000A-VSA adds digital modulation analysis — EVM, constellation diagrams, and quality metrics for wireless and communications testing. The option is enabled by a software license keyed to the spectrum analyzer's serial number and is permanent for the life of the instrument.
Key Features
- Digital Demodulation — ASK, FSK, PSK, QAM, OFDM with EVM and quality measurements.
- Constellation Diagram — Visual assessment of modulation quality and impairments.
- EVM Measurement — Error Vector Magnitude — the standard modulation quality metric.
- Lifetime License Activation — activate once, owned for the life of the instrument. No subscriptions, no renewals, no maintenance fees.
When You Need This Option
The option fits the following workflows:
- Wireless Transmitter — Measure EVM and constellation for modulation quality verification.
- Signal Quality — Evaluate modulation quality of custom digital communication signals.
Compatibility
This option is compatible with all UTS3000A Series spectrum analyzers: UTS3015A (1.5 GHz), UTS3026A (2.6 GHz), UTS3036A (3.6 GHz), UTS3046A (4.5 GHz). The same capability is offered on other UNI-T spectrum analyzer families: UTS5000A, UTS7000A.
Frequently Asked Questions
How is this option activated?
The option is enabled by a software license keyed to the spectrum analyzer's serial number. After purchase, the license is registered on the UNI-T website to generate the license file, which is then loaded onto the spectrum analyzer from a USB drive through the option-install menu. Refer to the spectrum analyzer's user manual for the step-by-step procedure.
Is the license permanent, or does it require renewal?
The license is permanent — a one-time purchase that stays active for the life of the instrument. No subscriptions, no annual renewals, and no expiration.