UTS3084A 8.4 GHz Performance-Series Signal Analyzer
Product Notes: Custom options and configurations are also available. Please contact us if you need help with your specific application.
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UNI-T UTS3084A Signal Analyzer | 8.4 GHz Real-Time Spectrum + VNA + Tracking Generator
The UNI-T UTS3084A is a 8.4 GHz real-time signal analyzer with built-in vector network analyzer (VNA) and tracking generator. It's a different class of instrument from a swept-spectrum analyzer, sized for advanced RF design, EMC engineering and modulated-carrier characterization. Frequency coverage runs 9 kHz to 8.4 GHz with 1 Hz resolution; minimum resolution bandwidth is 1 Hz; maximum resolution bandwidth is 10 MHz; typical displayed average noise level reaches -165 dBm/Hz (200 MHz to 1.5 GHz, preamp on); and phase noise runs -100 dBc/Hz typical at 10 kHz offset. The 10.1-inch 1280 × 800 capacitive multi-touch display surfaces real-time, swept, VNA, and (with optional licenses) demodulation modes without burying them behind soft-key paths.
The UTS3000A is built around three architectural pillars that swept-spectrum analyzers do not have: real-time spectrum analysis, vector network analysis with S11/S21, and digital signal demodulation. Real-time spectrum is standard at 10 MHz bandwidth (extendable to 40 MHz with the optional UTS3000A-B40 license), with 100% probability-of-intercept at 6.68 µs minimum signal duration. The VNA covers 100 kHz to 6 GHz with 80 dB S21 dynamic range and >40 dB S11 directivity after calibration — the reflection bridge is internal. Digital demodulation (optional UTS3000A-VSA) covers ASK, FSK, PSK, QAM, MSK, and DPSK with EVM measurement. The UTS3084A is the family flagship at 8.4 GHz, extending spectrum measurement reach into X-band radar work, C-band satellite uplinks, and the upper microwave region while preserving the full real-time + VNA + demodulation capability stack to 6 GHz.
- Frequency Coverage: 9 kHz to 8.4 GHz signal analysis
- Real-Time Spectrum (Standard): 10 MHz default; 40 MHz optional with UTS3000A-B40
- Built-In VNA (Standard): S11 + S21, Smith chart, polar coordinates (100 kHz to 6 GHz)
- Tracking Generator (Standard): 100 kHz to 6 GHz, output -40 to 0 dBm
- Sensitivity: DANL -165 dBm/Hz typical (200 MHz to 1.5 GHz, preamp on)
- Phase Noise: -100 dBc/Hz typical at 10 kHz offset
- Resolution Bandwidth: 1 Hz to 10 MHz in 1-3-10 steps
- Sweep Resolution: 40,001 sweep points; minimum RBW 1 Hz
- Multi-Trace Display: 12 real-time / 6 swept simultaneous traces
- Frequency Mask Trigger: FMT for transient and episodic signal capture
- Display: 10.1-inch 1280 × 800 capacitive multi-touch HD
- Connectivity: USB-Host, USB-Device, LAN (VXI-11), HDMI, 10 MHz reference in/out
- Programmability: SCPI over USB-TMC, Socket, VXI-11; WebServer; LabVIEW; NI-VISA
- Optional Packages: B40, AMK, EMI, AMA, VSA (digital demod), I/Q Analyzer
UNI-T UTS3084A Detailed Features
Frequency Coverage (9 kHz to 8.4 GHz)
The UTS3084A covers 9 kHz to 8.4 GHz with 1 Hz frequency resolution — the family flagship at the top of the Performance Series frequency reach. The range adds X-band radar work below 8.4 GHz, C-band satellite uplinks, microwave power-amplifier characterization in the GaN device space, and the full sub-X-band frequency space on a single instrument. Tracking generator and VNA modes cover 100 kHz to 6 GHz; spectrum measurement extends to 8.4 GHz across the entire Performance Series capability stack — see the FAQ for stimulus-response measurement above 6 GHz.
Real-Time Spectrum Analysis (Standard)
Real-time spectrum analysis is included as standard, not as an option or upsell. Default real-time bandwidth is 10 MHz; the optional UTS3000A-B40 license extends this to 40 MHz. The signature display mode is the density spectrogram — consecutive FFT frames overlaid with probability-density coloration, surfacing low-amplitude signals hidden under stronger ones and revealing time-frequency structure that swept measurement collapses into a single trace. Maximum sampling rate 51.2 MSa/s; FFT rate 146,253 frames/second nominal; 12 simultaneous traces (vs. 6 swept). Eight display modes cover Normal, Density, Spectrogram, PvT, PvT Spectrum, PvT Spectrogram, Powergram, Powergram Spectrogram. The 100% probability-of-intercept minimum signal duration is 6.68 µs at 40 MHz span (default Kaiser window) — a guaranteed-capture spec swept analyzers fundamentally cannot match.
Built-In VNA: S11 + S21 (100 kHz to 6 GHz, Standard)
Vector network analysis is included as standard, not as a separate instrument or option. S11 reflection and S21 transmission cover 100 kHz to 6 GHz with 80 dB S21 dynamic range and >40 dB S11 directivity after calibration. The 6 GHz VNA ceiling is below the 8.4 GHz spectrum range — spectrum measurement extends to 8.4 GHz; VNA stimulus-response is supported 100 kHz to 6 GHz, covering the full 5G NR n77/n78/n79 band set, Wi-Fi 6E, and most cellular and consumer-radio component characterization. Display formats include logarithmic and linear amplitude, Smith chart, polar coordinate. Mechanical calibration: Open, Short, Load, Through, Custom supported by the UT-3009F/M cal kit (DC to 9 GHz). The reflection bridge is internal.
Frequency Mask Template Trigger (FMT)
The Frequency Mask Template (FMT) trigger captures episodic and transient signals that exceed a user-defined spectral mask. Mask types: Upper, Lower, Both. Trigger criteria: Enter, Leave, Inside, Outside, Enter-Leave, Leave-Enter — supporting both threshold-crossing and dwell-time qualification. Combined with the real-time spectrum mode and 6.68 µs 100% POI minimum signal duration, FMT captures intermittent emissions, transient interference, and frequency-hopping transitions that fall between sweeps on a swept-spectrum analyzer. For radar pulse analysis, EMI event capture, and protocol-state spectral characterization, FMT is the trigger architecture that turns rare events into reliable measurements.
Digital Signal Demodulation (UTS3000A-VSA Option)
The optional UTS3000A-VSA Vector Signal Analyzer license adds digital demodulation across the modulation-scheme set used in modern radio: ASK (2/4/8/16), FSK (2/4/8/16), PSK (BPSK, QPSK, OQPSK, 8PSK), DPSK, QAM (16/32/64/128/256), and MSK. Symbol error statistics include EVM (rms and peak), magnitude error, phase error, IQ offset, carrier offset, SNR, quadrature error, and gain imbalance. Display formats: constellation diagrams, IQ time-domain plots, eye diagrams (I and Q), and error-vector time/frequency-domain views. Measurement filters: Raised Cosine, RRC, Gaussian, EDGE, CDMA, rectangular; symbol length 10 to 4,096; over-sampling rates 4 through 20. For modulated-carrier characterization where the question is signal quality on a bench-grade radio design, the VSA option replaces a separate vector signal analyzer instrument.
Sensitivity for Weak-Signal Detection (DANL -165 dBm/Hz typ.)
Displayed average noise level (DANL) reaches -165 dBm/Hz typical with the preamplifier engaged in the 200 MHz to 1.5 GHz band, and -166 dBm/Hz typical at 10 MHz to 200 MHz — the deepest sensitivity in the Performance Series. Across band, typical preamp-on DANL tracks from -153 dBm/Hz at 1–10 MHz to -158 dBm/Hz at the 7.5–8.4 GHz upper edge. With 0 dB attenuation, 1 Hz RBW, sample or average detection, and average >50, the noise floor supports detection of the low-amplitude phenomena that distinguish a quiet design from a marginal one — weak spurious emissions on power amplifiers, low-microwave harmonic content from wide-bandgap power stages, and modulated-carrier signal-integrity work.
EMI Pre-Compliance Testing (UTS3000A-EMI Option)
The optional UTS3000A-EMI package adds CISPR-specification resolution bandwidths (200 Hz, 9 kHz, 120 kHz, 1 MHz at −6 dB), quasi-peak and EMI-average detectors, and built-in limit masks for the major regulatory standards (AS-NZS, BellCore, DEF-STAN, DO-160, EN, FCC, GB9254, MIL-461, VCCI; plus custom limits). Scan workflow supports Scan-Search-Measure with signal-table reporting. Combined with the optional UTS-EMI01 near-field probe kit (four probes covering 30 MHz to 3 GHz), the analyzer supports radiated-emission pre-compliance measurement on the engineering bench — useful for catching mitigation needs before the compliance lab visit.
Comprehensive Interface Set
Front-panel interfaces include the RF input (50 Ω, N-type female) and the tracking-generator source output (50 Ω, N-type female). The 10.1-inch capacitive multi-touch display is also front-panel. Rear-panel interfaces support automated test integration: HDMI 1.4 video output for an external monitor; USB-Host (USB-A) for thumb-drive screenshot/data export and firmware update; USB-Device (USB-B) for direct PC connection over SCPI; LAN (VXI-11, 10/100/1000 Base, RJ-45) for network-based remote control; 10 MHz reference input/output (BNC, 50 Ω) for synchronization with other instruments; external trigger input (TTL, BNC); and audio output (3.5 mm). SCPI is supported over both USB and LAN.
SCPI, WebServer, and Multi-Platform Remote Control
Remote control supports SCPI over USB-TMC, Socket, and VXI-11; web-browser access through the built-in WebServer (PCs and mobile phones); LabVIEW and NI-VISA driver compatibility; and the UNI-T Device Manager software (V2.5.0 and higher) for instrument management over LAN or USB flash drive. The WebServer enables remote viewing, trace-data export, and SCPI control without installing a driver — useful for distributed test setups and for remote bench monitoring during long-duration EMC sweeps. The 10.1-inch capacitive multi-touch HD display (1280 × 800 native, RGB vertical pixel layout) provides the local user interface with drag-to-pan, pinch-to-zoom, and tap-to-place-marker gesture support.
Applications
Advanced RF Design and 5G NR Characterization
For X-band radar work below 8.4 GHz, C-band satellite uplinks, microwave power-amplifier characterization in the GaN device space, and 5G NR mid-band measurement with full headroom for harmonic and spurious analysis, the UTS3084A is the family flagship at 8.4 GHz. The real-time + VNA + tracking-generator capability set carries through the full sub-6 GHz range; spectrum measurement extends to 8.4 GHz across the entire Performance Series capability stack.
EMC Pre-Compliance and Power-Electronics EMI
For wide-bandgap power-electronics microwave characterization where the question is GaN-device harmonic content well into the low-microwave region, EMC pre-compliance with extended frequency reach, and the full radiated-emissions range above the CISPR cap, the UTS3084A pairs 8.4 GHz spectrum reach with real-time mode for transient capture and the built-in 6 GHz VNA for EMI-filter characterization.
VNA Component Characterization and Network Analysis
For component characterization across the cellular, Wi-Fi, and sub-6 GHz consumer-radio range — with spectrum measurement reach extending to 8.4 GHz for harmonic and spurious work — the built-in VNA covers 100 kHz to 6 GHz with S11/S21, Smith chart, and polar-coordinate visualization. The UT-3009F/M calibration kit (DC to 9 GHz) supports the full VNA range. Spectrum measurement supported to 8.4 GHz; stimulus-response measurements above 6 GHz require an external generator (see FAQ).
Accessories & In the Box
Standard Accessories
- Power cord × 1
- UT-D14 USB cable × 1
- UTS3084A signal analyzer (instrument)
Recommended Optional Accessories
- UT-3009F/M VNA Calibration Kit — recommended pairing for VNA mode (DC to 9 GHz; supports Open/Short/Load/Through mechanical calibration).
- UTS3000A-B40 — extends real-time bandwidth from 10 MHz to 40 MHz (license-key unlock).
- UTS3000A-AMK Advanced Measurement Kit; UTS3000A-EMI EMI Pre-Compliance; UTS3000A-AMA Analog Demodulation; UTS3000A-VSA Vector Signal Analyzer (digital demod); UTS3000A-I/Q I/Q Analyzer — license-key software unlocks (see FAQ for capability summary).
- UTS-EMI01 Near-Field Probe Kit — four probes covering 30 MHz to 3 GHz for radiated-emission scouting.
- UT-CK01 Cable and Adapter Accessory Kit — SMA-N adapters and cables for general RF bench work.
- UTS-T01 / UTS-T02 Antenna Pairs — Wi-Fi/Bluetooth (2400–2500 MHz) and cellular-band (824–960 / 1710–1990 MHz) antenna pairs.
Frequently Asked Questions
What is the tracking generator and VNA frequency range?
On the UTS3084A, both the tracking generator and the VNA cover 100 kHz to 6 GHz. TG output adjusts -40 to 0 dBm in 0.5 dB steps with ±3 dB flatness referenced to 50 MHz. VNA mode supports S11/S21 with 80 dB S21 dynamic range and >40 dB S11 directivity after calibration. Important: the 6 GHz TG/VNA ceiling is below the 8.4 GHz spectrum range. Spectrum measurement is supported across the full 9 kHz to 8.4 GHz range; stimulus-response (TG, VNA S11/S21) is supported 100 kHz to 6 GHz. The 6 GHz range covers the full 5G NR n77/n78/n79 band set, Wi-Fi 6E, and most cellular and consumer-radio component characterization. Recommended cal kit: UT-3009F/M (DC to 9 GHz).
Which features are standard and which require optional packages?
The UTS3000A includes Spectrum Analyzer, Real-time Spectrum Analyzer (10 MHz default real-time bandwidth), Vector Network Analyzer (S11 + S21), and Tracking Generator as standard, at no extra cost. Six optional license-key software unlocks extend the capability set: UTS3000A-B40 (extends real-time bandwidth to 40 MHz), UTS3000A-AMK (Advanced Measurement Kit: channel power, ACP, OBW, CNR, TOI, harmonics), UTS3000A-EMI (EMI pre-compliance with CISPR RBWs and quasi-peak/EMI-average detectors), UTS3000A-AMA (analog AM/FM/PM demod), UTS3000A-VSA (digital demod: ASK/FSK/PSK/QAM/MSK/DPSK with EVM), and UTS3000A-I/Q (50 Hz to 8.4 GHz I/Q analysis with 14-bit ADC, 51.2 MSa/s).
Does this analyzer support EMI pre-compliance testing?
Yes, with the optional UTS3000A-EMI package. EMI mode adds CISPR-specification resolution bandwidths (200 Hz, 9 kHz, 120 kHz, 1 MHz at −6 dB), quasi-peak and EMI-average detectors, a peak Scan-Search-Measure sweep workflow, and built-in limit masks for the major regulatory standards (AS-NZS, BellCore, DEF-STAN, DO-160, EN, FCC, GB9254, MIL-461, VCCI; plus custom limits). Combined with the optional UTS-EMI01 near-field probe kit (four probes covering 30 MHz to 3 GHz), the analyzer supports radiated-emission pre-compliance measurement on the engineering bench.
How does the UTS3000A differ from the UTS3000T+ family?
The UTS3000A and UTS3000T+ are different classes of instrument for different audiences. The UTS3000T+ is a swept-spectrum analyzer with optional analysis kits — sized for value-tier RF design, education, and pre-compliance EMI work. The UTS3000A is a Performance-Series real-time signal analyzer with built-in VNA and digital demodulation — sized for advanced RF design, professional EMC, and modulated-carrier characterization where capturing transient and modulated signals is the measurement workload.
Concrete differences: real-time spectrum is standard on the A (10 MHz, optionally 40 MHz with B40); the T+ has no real-time mode. VNA with S11/S21, Smith chart, polar coordinate is standard on the A; the T+ supports basic reflection only with an external bridge accessory. RBW range extends to 10 MHz on the A vs 3 MHz on the T+ flagship pair. Phase noise is -100 dBc/Hz typ at 10 kHz on the A vs <-98 dBc/Hz on the T+. Real-time traces support 12 simultaneous traces on the A vs 6 swept on the T+ flagship pair. The A also adds the Frequency Mask Template trigger (FMT) and the optional UTS3000A-VSA digital demodulation package — capabilities not available on the T+. Pricing reflects the architectural difference.
What measurements are supported on the UTS3084A above 6 GHz?
Spectrum measurement is supported across the full 9 kHz to 8.4 GHz range — including all standard spectrum modes, all detector types, real-time spectrum (with optional UTS3000A-B40), all measurement markers, harmonic measurement (UTS3000A-AMK), EMI pre-compliance (UTS3000A-EMI), and the optional UTS3000A-I/Q analyzer.
Stimulus-response measurement using the built-in tracking generator and VNA is supported across 100 kHz to 6 GHz. For component characterization between 6 GHz and 8.4 GHz, an external signal generator is required to drive the device under test; the spectrum and real-time modes still measure the response. The 6 GHz TG/VNA range covers the full 5G NR n77/n78/n79 band set, Wi-Fi 6E, and the cellular and consumer-radio component-characterization frequency space — most engineering work above 6 GHz is in spectrum-measurement mode rather than stimulus-response.
Specifications
| Frequency Range | 9 kHz to 8.4 GHz |
| Frequency Resolution | 1 Hz |
| Phase Noise (10 kHz / 1 MHz offset) | -100 dBc/Hz typ / -112 dBc/Hz typ |
| Amplitude Precision | < 0.7 dB |
| Frequency Response | 9 kHz to 3.6 GHz, ±0.6 dB; 3.6 to 8.4 GHz, ±0.8 dB |
| Displayed Average Noise Level (typ.) | -165 dBm/Hz (200 MHz to 1.5 GHz, preamp on) |
| Resolution Bandwidth (RBW) | 1 Hz to 10 MHz in 1-3-10 steps |
| Video Bandwidth (VBW) | 1 Hz to 10 MHz in 1-3-10 steps |
| Sweep Points | 40,001 |
| Number of Traces (swept / real-time) | 6 swept / 12 real-time |
| Detection Modes | Sample, Peak, Negative Peak, Normal, Average |
| Real-Time Bandwidth (std. / opt.) | 10 MHz standard / 40 MHz with UTS3000A-B40 |
| Real-Time 100% POI Min. Signal Duration | 6.68 µs at 40 MHz span (Kaiser window) |
| Real-Time FFT Rate | 146,253 frames/second (nominal) |
| Tracking Generator Range | 100 kHz to 6 GHz |
| TG Output Power Range | -40 dBm to 0 dBm in 0.5 dB steps |
| VNA Frequency Range | 100 kHz to 6 GHz |
| VNA Measurement Type | S11 reflection, S21 transmission |
| VNA S21 Dynamic Range / S11 Directivity | 80 dB / >40 dB (after cal) |
| VNA Measurement Points | 101 to 10,001 (default 201) |
| VNA Calibration | Open, Short, Load, Through, Custom (mechanical) |
| Frequency Mask Trigger (FMT) | Upper, Lower, Both; 0.5 dB resolution; 0 s to 500 ms delay |
| Maximum Continuous-Wave Input | ≤+30 dBm (attenuation >20 dB) |
| Maximum Safe DC Input | 50 V DC |
| Display | 10.1-inch 1280 × 800 capacitive multi-touch HD |
| Interfaces | USB-Host, USB-Device, LAN (VXI-11, 10/100/1000), HDMI 1.4, External Trigger, Audio |
| Programmability | SCPI over USB-TMC, Socket, VXI-11; WebServer; LabVIEW; NI-VISA |
| Power Supply | 100 to 240 VAC, 50/60 Hz |
| Operating / Storage Temperature | 0 to +40 °C / -20 to +70 °C |
| Dimensions (W × H × D) / Weight | 378 mm × 218 mm × 120 mm (W × H × D) / 4.96 kg |
| Certifications | CE, cETLus |
Options & Accessories
Included in box:
- Power cord
- USB2.0 printing cable
- English download guide
- multi-language safety manual
- calibration report (COC)
Software options (model number — description):
- UTS3000A-AMA — AM/FM Analog Demodulation Option
- UTS3000A-AMK — Advanced Measurement Kit Option
- UTS3000A-B40 — 40MHz Real-Time Analysis Option
- UTS3000A-EMI — EMI Pre-Compliance Measurement Option
- UTS3000A-FDD-LTE — FDD-LTE Demodulation Analysis Option
- UTS3000A-I/Q — I/Q Modulation Analysis Option
- UTS3000A-NR40 — UTS3000A-NR 5G 40MHz New Radio Analysis Option
- UTS3000A-PNM — Phase Noise Measurement option for UTS3000A series
- UTS3000A-TDD-LTE — TDD-LTE Demodulation Analysis Option
- UTS3000A-VSA — Vector Signal Analysis Demodulation Option
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Product Information
Product Information
UNI-T UTS3084A Signal Analyzer | 8.4 GHz Real-Time Spectrum + VNA + Tracking Generator
The UNI-T UTS3084A is a 8.4 GHz real-time signal analyzer with built-in vector network analyzer (VNA) and tracking generator. It's a different class of instrument from a swept-spectrum analyzer, sized for advanced RF design, EMC engineering and modulated-carrier characterization. Frequency coverage runs 9 kHz to 8.4 GHz with 1 Hz resolution; minimum resolution bandwidth is 1 Hz; maximum resolution bandwidth is 10 MHz; typical displayed average noise level reaches -165 dBm/Hz (200 MHz to 1.5 GHz, preamp on); and phase noise runs -100 dBc/Hz typical at 10 kHz offset. The 10.1-inch 1280 × 800 capacitive multi-touch display surfaces real-time, swept, VNA, and (with optional licenses) demodulation modes without burying them behind soft-key paths.
The UTS3000A is built around three architectural pillars that swept-spectrum analyzers do not have: real-time spectrum analysis, vector network analysis with S11/S21, and digital signal demodulation. Real-time spectrum is standard at 10 MHz bandwidth (extendable to 40 MHz with the optional UTS3000A-B40 license), with 100% probability-of-intercept at 6.68 µs minimum signal duration. The VNA covers 100 kHz to 6 GHz with 80 dB S21 dynamic range and >40 dB S11 directivity after calibration — the reflection bridge is internal. Digital demodulation (optional UTS3000A-VSA) covers ASK, FSK, PSK, QAM, MSK, and DPSK with EVM measurement. The UTS3084A is the family flagship at 8.4 GHz, extending spectrum measurement reach into X-band radar work, C-band satellite uplinks, and the upper microwave region while preserving the full real-time + VNA + demodulation capability stack to 6 GHz.
- Frequency Coverage: 9 kHz to 8.4 GHz signal analysis
- Real-Time Spectrum (Standard): 10 MHz default; 40 MHz optional with UTS3000A-B40
- Built-In VNA (Standard): S11 + S21, Smith chart, polar coordinates (100 kHz to 6 GHz)
- Tracking Generator (Standard): 100 kHz to 6 GHz, output -40 to 0 dBm
- Sensitivity: DANL -165 dBm/Hz typical (200 MHz to 1.5 GHz, preamp on)
- Phase Noise: -100 dBc/Hz typical at 10 kHz offset
- Resolution Bandwidth: 1 Hz to 10 MHz in 1-3-10 steps
- Sweep Resolution: 40,001 sweep points; minimum RBW 1 Hz
- Multi-Trace Display: 12 real-time / 6 swept simultaneous traces
- Frequency Mask Trigger: FMT for transient and episodic signal capture
- Display: 10.1-inch 1280 × 800 capacitive multi-touch HD
- Connectivity: USB-Host, USB-Device, LAN (VXI-11), HDMI, 10 MHz reference in/out
- Programmability: SCPI over USB-TMC, Socket, VXI-11; WebServer; LabVIEW; NI-VISA
- Optional Packages: B40, AMK, EMI, AMA, VSA (digital demod), I/Q Analyzer
UNI-T UTS3084A Detailed Features
Frequency Coverage (9 kHz to 8.4 GHz)
The UTS3084A covers 9 kHz to 8.4 GHz with 1 Hz frequency resolution — the family flagship at the top of the Performance Series frequency reach. The range adds X-band radar work below 8.4 GHz, C-band satellite uplinks, microwave power-amplifier characterization in the GaN device space, and the full sub-X-band frequency space on a single instrument. Tracking generator and VNA modes cover 100 kHz to 6 GHz; spectrum measurement extends to 8.4 GHz across the entire Performance Series capability stack — see the FAQ for stimulus-response measurement above 6 GHz.
Real-Time Spectrum Analysis (Standard)
Real-time spectrum analysis is included as standard, not as an option or upsell. Default real-time bandwidth is 10 MHz; the optional UTS3000A-B40 license extends this to 40 MHz. The signature display mode is the density spectrogram — consecutive FFT frames overlaid with probability-density coloration, surfacing low-amplitude signals hidden under stronger ones and revealing time-frequency structure that swept measurement collapses into a single trace. Maximum sampling rate 51.2 MSa/s; FFT rate 146,253 frames/second nominal; 12 simultaneous traces (vs. 6 swept). Eight display modes cover Normal, Density, Spectrogram, PvT, PvT Spectrum, PvT Spectrogram, Powergram, Powergram Spectrogram. The 100% probability-of-intercept minimum signal duration is 6.68 µs at 40 MHz span (default Kaiser window) — a guaranteed-capture spec swept analyzers fundamentally cannot match.
Built-In VNA: S11 + S21 (100 kHz to 6 GHz, Standard)
Vector network analysis is included as standard, not as a separate instrument or option. S11 reflection and S21 transmission cover 100 kHz to 6 GHz with 80 dB S21 dynamic range and >40 dB S11 directivity after calibration. The 6 GHz VNA ceiling is below the 8.4 GHz spectrum range — spectrum measurement extends to 8.4 GHz; VNA stimulus-response is supported 100 kHz to 6 GHz, covering the full 5G NR n77/n78/n79 band set, Wi-Fi 6E, and most cellular and consumer-radio component characterization. Display formats include logarithmic and linear amplitude, Smith chart, polar coordinate. Mechanical calibration: Open, Short, Load, Through, Custom supported by the UT-3009F/M cal kit (DC to 9 GHz). The reflection bridge is internal.
Frequency Mask Template Trigger (FMT)
The Frequency Mask Template (FMT) trigger captures episodic and transient signals that exceed a user-defined spectral mask. Mask types: Upper, Lower, Both. Trigger criteria: Enter, Leave, Inside, Outside, Enter-Leave, Leave-Enter — supporting both threshold-crossing and dwell-time qualification. Combined with the real-time spectrum mode and 6.68 µs 100% POI minimum signal duration, FMT captures intermittent emissions, transient interference, and frequency-hopping transitions that fall between sweeps on a swept-spectrum analyzer. For radar pulse analysis, EMI event capture, and protocol-state spectral characterization, FMT is the trigger architecture that turns rare events into reliable measurements.
Digital Signal Demodulation (UTS3000A-VSA Option)
The optional UTS3000A-VSA Vector Signal Analyzer license adds digital demodulation across the modulation-scheme set used in modern radio: ASK (2/4/8/16), FSK (2/4/8/16), PSK (BPSK, QPSK, OQPSK, 8PSK), DPSK, QAM (16/32/64/128/256), and MSK. Symbol error statistics include EVM (rms and peak), magnitude error, phase error, IQ offset, carrier offset, SNR, quadrature error, and gain imbalance. Display formats: constellation diagrams, IQ time-domain plots, eye diagrams (I and Q), and error-vector time/frequency-domain views. Measurement filters: Raised Cosine, RRC, Gaussian, EDGE, CDMA, rectangular; symbol length 10 to 4,096; over-sampling rates 4 through 20. For modulated-carrier characterization where the question is signal quality on a bench-grade radio design, the VSA option replaces a separate vector signal analyzer instrument.
Sensitivity for Weak-Signal Detection (DANL -165 dBm/Hz typ.)
Displayed average noise level (DANL) reaches -165 dBm/Hz typical with the preamplifier engaged in the 200 MHz to 1.5 GHz band, and -166 dBm/Hz typical at 10 MHz to 200 MHz — the deepest sensitivity in the Performance Series. Across band, typical preamp-on DANL tracks from -153 dBm/Hz at 1–10 MHz to -158 dBm/Hz at the 7.5–8.4 GHz upper edge. With 0 dB attenuation, 1 Hz RBW, sample or average detection, and average >50, the noise floor supports detection of the low-amplitude phenomena that distinguish a quiet design from a marginal one — weak spurious emissions on power amplifiers, low-microwave harmonic content from wide-bandgap power stages, and modulated-carrier signal-integrity work.
EMI Pre-Compliance Testing (UTS3000A-EMI Option)
The optional UTS3000A-EMI package adds CISPR-specification resolution bandwidths (200 Hz, 9 kHz, 120 kHz, 1 MHz at −6 dB), quasi-peak and EMI-average detectors, and built-in limit masks for the major regulatory standards (AS-NZS, BellCore, DEF-STAN, DO-160, EN, FCC, GB9254, MIL-461, VCCI; plus custom limits). Scan workflow supports Scan-Search-Measure with signal-table reporting. Combined with the optional UTS-EMI01 near-field probe kit (four probes covering 30 MHz to 3 GHz), the analyzer supports radiated-emission pre-compliance measurement on the engineering bench — useful for catching mitigation needs before the compliance lab visit.
Comprehensive Interface Set
Front-panel interfaces include the RF input (50 Ω, N-type female) and the tracking-generator source output (50 Ω, N-type female). The 10.1-inch capacitive multi-touch display is also front-panel. Rear-panel interfaces support automated test integration: HDMI 1.4 video output for an external monitor; USB-Host (USB-A) for thumb-drive screenshot/data export and firmware update; USB-Device (USB-B) for direct PC connection over SCPI; LAN (VXI-11, 10/100/1000 Base, RJ-45) for network-based remote control; 10 MHz reference input/output (BNC, 50 Ω) for synchronization with other instruments; external trigger input (TTL, BNC); and audio output (3.5 mm). SCPI is supported over both USB and LAN.
SCPI, WebServer, and Multi-Platform Remote Control
Remote control supports SCPI over USB-TMC, Socket, and VXI-11; web-browser access through the built-in WebServer (PCs and mobile phones); LabVIEW and NI-VISA driver compatibility; and the UNI-T Device Manager software (V2.5.0 and higher) for instrument management over LAN or USB flash drive. The WebServer enables remote viewing, trace-data export, and SCPI control without installing a driver — useful for distributed test setups and for remote bench monitoring during long-duration EMC sweeps. The 10.1-inch capacitive multi-touch HD display (1280 × 800 native, RGB vertical pixel layout) provides the local user interface with drag-to-pan, pinch-to-zoom, and tap-to-place-marker gesture support.
Applications
Advanced RF Design and 5G NR Characterization
For X-band radar work below 8.4 GHz, C-band satellite uplinks, microwave power-amplifier characterization in the GaN device space, and 5G NR mid-band measurement with full headroom for harmonic and spurious analysis, the UTS3084A is the family flagship at 8.4 GHz. The real-time + VNA + tracking-generator capability set carries through the full sub-6 GHz range; spectrum measurement extends to 8.4 GHz across the entire Performance Series capability stack.
EMC Pre-Compliance and Power-Electronics EMI
For wide-bandgap power-electronics microwave characterization where the question is GaN-device harmonic content well into the low-microwave region, EMC pre-compliance with extended frequency reach, and the full radiated-emissions range above the CISPR cap, the UTS3084A pairs 8.4 GHz spectrum reach with real-time mode for transient capture and the built-in 6 GHz VNA for EMI-filter characterization.
VNA Component Characterization and Network Analysis
For component characterization across the cellular, Wi-Fi, and sub-6 GHz consumer-radio range — with spectrum measurement reach extending to 8.4 GHz for harmonic and spurious work — the built-in VNA covers 100 kHz to 6 GHz with S11/S21, Smith chart, and polar-coordinate visualization. The UT-3009F/M calibration kit (DC to 9 GHz) supports the full VNA range. Spectrum measurement supported to 8.4 GHz; stimulus-response measurements above 6 GHz require an external generator (see FAQ).
Accessories & In the Box
Standard Accessories
- Power cord × 1
- UT-D14 USB cable × 1
- UTS3084A signal analyzer (instrument)
Recommended Optional Accessories
- UT-3009F/M VNA Calibration Kit — recommended pairing for VNA mode (DC to 9 GHz; supports Open/Short/Load/Through mechanical calibration).
- UTS3000A-B40 — extends real-time bandwidth from 10 MHz to 40 MHz (license-key unlock).
- UTS3000A-AMK Advanced Measurement Kit; UTS3000A-EMI EMI Pre-Compliance; UTS3000A-AMA Analog Demodulation; UTS3000A-VSA Vector Signal Analyzer (digital demod); UTS3000A-I/Q I/Q Analyzer — license-key software unlocks (see FAQ for capability summary).
- UTS-EMI01 Near-Field Probe Kit — four probes covering 30 MHz to 3 GHz for radiated-emission scouting.
- UT-CK01 Cable and Adapter Accessory Kit — SMA-N adapters and cables for general RF bench work.
- UTS-T01 / UTS-T02 Antenna Pairs — Wi-Fi/Bluetooth (2400–2500 MHz) and cellular-band (824–960 / 1710–1990 MHz) antenna pairs.
Frequently Asked Questions
What is the tracking generator and VNA frequency range?
On the UTS3084A, both the tracking generator and the VNA cover 100 kHz to 6 GHz. TG output adjusts -40 to 0 dBm in 0.5 dB steps with ±3 dB flatness referenced to 50 MHz. VNA mode supports S11/S21 with 80 dB S21 dynamic range and >40 dB S11 directivity after calibration. Important: the 6 GHz TG/VNA ceiling is below the 8.4 GHz spectrum range. Spectrum measurement is supported across the full 9 kHz to 8.4 GHz range; stimulus-response (TG, VNA S11/S21) is supported 100 kHz to 6 GHz. The 6 GHz range covers the full 5G NR n77/n78/n79 band set, Wi-Fi 6E, and most cellular and consumer-radio component characterization. Recommended cal kit: UT-3009F/M (DC to 9 GHz).
Which features are standard and which require optional packages?
The UTS3000A includes Spectrum Analyzer, Real-time Spectrum Analyzer (10 MHz default real-time bandwidth), Vector Network Analyzer (S11 + S21), and Tracking Generator as standard, at no extra cost. Six optional license-key software unlocks extend the capability set: UTS3000A-B40 (extends real-time bandwidth to 40 MHz), UTS3000A-AMK (Advanced Measurement Kit: channel power, ACP, OBW, CNR, TOI, harmonics), UTS3000A-EMI (EMI pre-compliance with CISPR RBWs and quasi-peak/EMI-average detectors), UTS3000A-AMA (analog AM/FM/PM demod), UTS3000A-VSA (digital demod: ASK/FSK/PSK/QAM/MSK/DPSK with EVM), and UTS3000A-I/Q (50 Hz to 8.4 GHz I/Q analysis with 14-bit ADC, 51.2 MSa/s).
Does this analyzer support EMI pre-compliance testing?
Yes, with the optional UTS3000A-EMI package. EMI mode adds CISPR-specification resolution bandwidths (200 Hz, 9 kHz, 120 kHz, 1 MHz at −6 dB), quasi-peak and EMI-average detectors, a peak Scan-Search-Measure sweep workflow, and built-in limit masks for the major regulatory standards (AS-NZS, BellCore, DEF-STAN, DO-160, EN, FCC, GB9254, MIL-461, VCCI; plus custom limits). Combined with the optional UTS-EMI01 near-field probe kit (four probes covering 30 MHz to 3 GHz), the analyzer supports radiated-emission pre-compliance measurement on the engineering bench.
How does the UTS3000A differ from the UTS3000T+ family?
The UTS3000A and UTS3000T+ are different classes of instrument for different audiences. The UTS3000T+ is a swept-spectrum analyzer with optional analysis kits — sized for value-tier RF design, education, and pre-compliance EMI work. The UTS3000A is a Performance-Series real-time signal analyzer with built-in VNA and digital demodulation — sized for advanced RF design, professional EMC, and modulated-carrier characterization where capturing transient and modulated signals is the measurement workload.
Concrete differences: real-time spectrum is standard on the A (10 MHz, optionally 40 MHz with B40); the T+ has no real-time mode. VNA with S11/S21, Smith chart, polar coordinate is standard on the A; the T+ supports basic reflection only with an external bridge accessory. RBW range extends to 10 MHz on the A vs 3 MHz on the T+ flagship pair. Phase noise is -100 dBc/Hz typ at 10 kHz on the A vs <-98 dBc/Hz on the T+. Real-time traces support 12 simultaneous traces on the A vs 6 swept on the T+ flagship pair. The A also adds the Frequency Mask Template trigger (FMT) and the optional UTS3000A-VSA digital demodulation package — capabilities not available on the T+. Pricing reflects the architectural difference.
What measurements are supported on the UTS3084A above 6 GHz?
Spectrum measurement is supported across the full 9 kHz to 8.4 GHz range — including all standard spectrum modes, all detector types, real-time spectrum (with optional UTS3000A-B40), all measurement markers, harmonic measurement (UTS3000A-AMK), EMI pre-compliance (UTS3000A-EMI), and the optional UTS3000A-I/Q analyzer.
Stimulus-response measurement using the built-in tracking generator and VNA is supported across 100 kHz to 6 GHz. For component characterization between 6 GHz and 8.4 GHz, an external signal generator is required to drive the device under test; the spectrum and real-time modes still measure the response. The 6 GHz TG/VNA range covers the full 5G NR n77/n78/n79 band set, Wi-Fi 6E, and the cellular and consumer-radio component-characterization frequency space — most engineering work above 6 GHz is in spectrum-measurement mode rather than stimulus-response.
Specifications
| Frequency Range | 9 kHz to 8.4 GHz |
| Frequency Resolution | 1 Hz |
| Phase Noise (10 kHz / 1 MHz offset) | -100 dBc/Hz typ / -112 dBc/Hz typ |
| Amplitude Precision | < 0.7 dB |
| Frequency Response | 9 kHz to 3.6 GHz, ±0.6 dB; 3.6 to 8.4 GHz, ±0.8 dB |
| Displayed Average Noise Level (typ.) | -165 dBm/Hz (200 MHz to 1.5 GHz, preamp on) |
| Resolution Bandwidth (RBW) | 1 Hz to 10 MHz in 1-3-10 steps |
| Video Bandwidth (VBW) | 1 Hz to 10 MHz in 1-3-10 steps |
| Sweep Points | 40,001 |
| Number of Traces (swept / real-time) | 6 swept / 12 real-time |
| Detection Modes | Sample, Peak, Negative Peak, Normal, Average |
| Real-Time Bandwidth (std. / opt.) | 10 MHz standard / 40 MHz with UTS3000A-B40 |
| Real-Time 100% POI Min. Signal Duration | 6.68 µs at 40 MHz span (Kaiser window) |
| Real-Time FFT Rate | 146,253 frames/second (nominal) |
| Tracking Generator Range | 100 kHz to 6 GHz |
| TG Output Power Range | -40 dBm to 0 dBm in 0.5 dB steps |
| VNA Frequency Range | 100 kHz to 6 GHz |
| VNA Measurement Type | S11 reflection, S21 transmission |
| VNA S21 Dynamic Range / S11 Directivity | 80 dB / >40 dB (after cal) |
| VNA Measurement Points | 101 to 10,001 (default 201) |
| VNA Calibration | Open, Short, Load, Through, Custom (mechanical) |
| Frequency Mask Trigger (FMT) | Upper, Lower, Both; 0.5 dB resolution; 0 s to 500 ms delay |
| Maximum Continuous-Wave Input | ≤+30 dBm (attenuation >20 dB) |
| Maximum Safe DC Input | 50 V DC |
| Display | 10.1-inch 1280 × 800 capacitive multi-touch HD |
| Interfaces | USB-Host, USB-Device, LAN (VXI-11, 10/100/1000), HDMI 1.4, External Trigger, Audio |
| Programmability | SCPI over USB-TMC, Socket, VXI-11; WebServer; LabVIEW; NI-VISA |
| Power Supply | 100 to 240 VAC, 50/60 Hz |
| Operating / Storage Temperature | 0 to +40 °C / -20 to +70 °C |
| Dimensions (W × H × D) / Weight | 378 mm × 218 mm × 120 mm (W × H × D) / 4.96 kg |
| Certifications | CE, cETLus |
Options & Accessories
Included in box:
- Power cord
- USB2.0 printing cable
- English download guide
- multi-language safety manual
- calibration report (COC)
Software options (model number — description):
- UTS3000A-AMA — AM/FM Analog Demodulation Option
- UTS3000A-AMK — Advanced Measurement Kit Option
- UTS3000A-B40 — 40MHz Real-Time Analysis Option
- UTS3000A-EMI — EMI Pre-Compliance Measurement Option
- UTS3000A-FDD-LTE — FDD-LTE Demodulation Analysis Option
- UTS3000A-I/Q — I/Q Modulation Analysis Option
- UTS3000A-NR40 — UTS3000A-NR 5G 40MHz New Radio Analysis Option
- UTS3000A-PNM — Phase Noise Measurement option for UTS3000A series
- UTS3000A-TDD-LTE — TDD-LTE Demodulation Analysis Option
- UTS3000A-VSA — Vector Signal Analysis Demodulation Option
Description
Description
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Product Category: Electrical Testing Tools
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