The UTS3036T+ and UTS3084T+ extend spectrum coverage to 3.6 GHz and 8.4 GHz with a 40,001-point sweep engine and six traces.

For RF design work above the common sub-3 GHz bands — higher-order harmonics, wideband spurious search, and signals that need fine frequency resolution across a wide span — the deeper sweep and the 8.4 GHz reach of the UTS3084T+ are the reason to choose this pair.

Typical displayed average noise level reaches −165 dBm with the preamp on (a shared series figure for both models), phase noise is −98 dBc/Hz typical at 10 kHz offset, and full-amplitude accuracy is under 0.7 dB. The tracking generator is built in and standard; analog demodulation, the advanced measurement kit and EMI pre-compliance are field-installable options.

A 10.1-inch 1280×800 capacitive touch screen and full SCPI control over USB and LAN support scripted overnight sweeps across frequency, level and span.

Choosing Your Model: UTS3000T+ Performance-Series

The UTS3000T+ name spans two materially different instrument classes. The four models below do not share the same sweep engine, trace count or demodulation capability — the differences go well beyond frequency reach. Compare the full series before selecting:

Within the UTS3015T+/UTS3032T+ class, choose by frequency reach (1.5 GHz vs 3.2 GHz). Within the UTS3036T+/UTS3084T+ class, choose 3.6 GHz or 8.4 GHz reach. Across classes the UTS3036T+/UTS3084T+ models add a 40,001-point sweep (4× the depth), six traces instead of four, and PM demodulation in addition to AM/FM — confirm which class a model belongs to before assuming a shared specification.

• Spectrum analysis to 3.6 GHz or 8.4 GHz — 9 kHz lower edge to 3.6 GHz (UTS3036T+) or 8.4 GHz (UTS3084T+), reaching higher harmonics and wideband signals the sub-3 GHz class cannot.
• 40,001 sweep points, six traces — Four times the sweep depth of the entry pair, with six independent traces for simultaneous live, reference and limit comparison.
• Built-in tracking generator — Standard on both models — scalar network response on filters, amplifiers and cables; TG output to 6 GHz on the UTS3084T+.
• −165 dBm typical DANL (preamp on) — Low displayed average noise level (10–200 MHz band) for weak-signal and low-level emissions work — a shared series figure, the same for both models.
• Reflection measurement (S11) — Return loss, VSWR and reflection coefficient with the optional VSWR bridge.
• 1 Hz to 3 MHz RBW, < 4.8:1 shape factor — Fine resolution and selectivity for closely spaced unequal-amplitude signals.
• Phase noise to −110 dBc/Hz at 1 MHz — Close-in phase-noise figures suited to oscillator and synthesizer characterization.
• Full SCPI remote control — USB and LAN (VXI11) for automated frequency/level/span sweeps.
• EMI pre-compliance and analog demodulation options — CISPR-aware screening with quasi-peak/EMI-average detectors; AM/FM/PM demodulation with SINAD and THD readout.

UNI-T UTS3000T+ Performance-Series Details

Frequency Reach to 8.4 GHz

The UTS3036T+ sweeps 9 kHz to 3.6 GHz; the UTS3084T+ to 8.4 GHz. The higher ceiling captures the third and higher harmonics of sub-3 GHz carriers and wideband spurious content that a 3 GHz-class analyzer cannot reach.

40,001-Point Sweep

Each trace carries 40,001 points — four times the entry pair — so a wide span still resolves narrow signals without sacrificing the span to keep frequency resolution. This is the practical difference when searching a multi-GHz window for a single spur.

Six Traces and Detector Modes

Six independent traces with Sample, Peak, Negative, Normal and Average detectors allow live, max-hold, reference and limit traces on screen at once — useful when comparing a measured spectrum against a stored mask.

Sensitivity and Phase Noise

Typical displayed average noise level reaches −165 dBm with the preamp on (10–200 MHz band) — a shared series figure for both models. Phase noise is −98 dBc/Hz typical at 10 kHz and reaches −110 dBc/Hz at 1 MHz offset on the UTS3084T+, relevant when measuring a clean source close to the carrier.

Resolution Bandwidth and Selectivity

RBW 1 Hz to 3 MHz in 1-3-10 steps with a < 4.8:1 shape factor resolves a weak product sitting next to a strong carrier.

Reflection Measurement

With the optional VSWR bridge and the built-in tracking source, the analyzer measures S11 return loss, reflection coefficient and VSWR after an Open calibration — antenna and cable verification on the same instrument.

EMI Pre-Compliance Screening (Option)

With the optional UTS3000-EMI kit the analyzer operates as a CISPR-aware screening receiver: −6 dB resolution bandwidths of 200 Hz, 9 kHz, 120 kHz and 1 MHz; Peak, Negative-Peak, Quasi-Peak, EMI-Average and Average detectors; up to three concurrent meter traces; and editable limit-line sets for FCC, EN, MIL-STD-461, DO-160, VCCI and custom standards. A Scan / Search / Measure sequence with output report supports near-field-probe emissions screening before committing to chamber time.

Analog Demodulation Analysis (Option)

The optional UTS3000-AMA kit adds AM, FM and PM demodulation. Modulation rate covers 20 Hz to 100 kHz; AM depth 5–95%; FM offset 1 kHz to 400 kHz; PM phase deviation 0.2 to 6.28 rad. The result window reports modulation depth, carrier power, modulation frequency, SINAD and THD — enough to verify a transmitter's modulation quality from the same bench.

Advanced One-Key Measurements (Option)

The optional UTS3000-AMK kit adds channel power, power spectral density, adjacent-channel power, occupied bandwidth, transmit frequency error, zero-span (time-domain) power, carrier-to-noise ratio, third-order intercept and harmonic measurement to the 10th order, plus a spectrogram monitor — the transmitter-test set used in design verification.

Applications

RF and Wireless Design Engineering

Above 3 GHz the work is harmonic and spurious search, wideband signal characterization, and source verification. The 8.4 GHz reach of the UTS3084T+ captures the higher harmonics of a sub-3 GHz design; the 40,001-point sweep keeps narrow signals resolved across a multi-GHz span; and the close-in phase-noise figures support oscillator and synthesizer characterization. Full SCPI over LAN runs the level- and frequency-stepped sweeps a characterization report needs, unattended.

Pre-Compliance and Multi-Function Test Benches

For a lab that needs more than one instrument's worth of capability per bench, this pair consolidates spectrum analysis, scalar network response via the built-in tracking generator, reflection measurement, AM/FM/PM demodulation and CISPR-aware EMI screening into one instrument. Early emissions screening with a near-field probe set catches problems before chamber time; the advanced-measurement kit covers the transmitter test set for design verification — all option installs, no recurring license.

FAQ's

What does the UTS3036T+/UTS3084T+ add over the lower-frequency models in this series?

Frequency reach, sweep depth and trace count. The UTS3036T+ and UTS3084T+ reach 3.6 GHz and 8.4 GHz with a 40,001-point sweep and six traces; the UTS3015T+/UTS3032T+ models reach 1.5/3.2 GHz with a 10,001-point sweep and four traces, and their analog-demod option is AM/FM only (no PM). The Choosing Your Model table above shows the full series comparison.

What is the difference between the UTS3036T+ and the UTS3084T+?

Frequency ceiling and tracking-generator range. The UTS3036T+ covers to 3.6 GHz with a TG to 3.6 GHz; the UTS3084T+ covers to 8.4 GHz with a TG to 6 GHz and slightly better close-in phase noise. Both share the 40,001-point sweep engine, six traces and the full option set. See Choosing Your Model above.

Is the tracking generator standard?

Yes. The tracking generator is built in and standard on every UTS3000T+ model. Analog demodulation, the advanced measurement kit and EMI pre-compliance are field-installable options.

Can it screen for EMI before a formal compliance test?

With the optional UTS3000-EMI kit it provides CISPR-bandwidth RBWs, quasi-peak and EMI-average detectors and editable limit lines (FCC, EN, MIL-STD-461, DO-160, VCCI, custom) for near-field-probe screening ahead of an accredited run.

Downloads

UNI-T UTS3084T+ Datasheet

UNI-T UTS3084T+  Users Manual