Overview

The UNI-T UTS1032B Advanced-Series Spectrum Analyzer brings full-featured RF analysis into reach for educators, hobbyists, and engineers who need a capable instrument without the price tag of a high-end performance analyzer. Covering 9 kHz – 3.2 GHz, the UTS1032B pairs a 10.1-inch capacitive multi-touch display with a 1 Hz resolution bandwidth floor and up to 10,001 sweep points — the kind of detail that lets you see what you actually need to see, whether you're chasing a stray spur or building familiarity with RF.

A typical displayed average noise level of -161 dBm/Hz (preamp on) and phase noise of <-98 dBc/Hz at a 10 kHz offset deliver the dynamic range needed for everyday signal characterization in the sub-3.2GHz band. Standard interfaces include HDMI 1.4 display output, USB-A 3.0 (Host), USB-B 2.0 (Device), and Gigabit LAN with full SCPI support — the UTS1032B fits as easily on a benchtop next to a soldering iron as it does in a remotely-driven automated test rack.

Key Features

UNI-T UTS1032B Details

Frequency Coverage (9 kHz – 3.2 GHz)

The UTS1032B sweeps continuously from 9 kHz up to 3.2 GHz, with a 1 Hz frequency resolution and marker counter accuracy on the same order. Coverage spans well into the 2.4 GHz ISM band, comfortably reaching the Wi-Fi 2.4 GHz spectrum, BLE, ZigBee, and other common short-range wireless. The 3.2 GHz ceiling covers most consumer and IoT radio development without stepping into the cost class of a microwave analyzer. A 1 Hz frequency reference calibration accuracy with <1 ppm temperature stability keeps the measurement steady across the calibration cycle.

Sensitivity (DANL as low as -161 dBm/Hz)

Weak-signal testing depends on how quiet the analyzer itself is. With the preamp on, the UTS1032B reaches a typical displayed average noise level of -161 dBm/Hz in the 200 MHz – 1.5 GHz band — low enough to resolve faint emissions, identify harmonic energy well below the carrier, and characterize signals near the noise floor. Five detector modes (Sample, Peak, Negative, Normal, Average) and four trace types (Clear/Write, Average, Max Hold, Min Hold) give you the flexibility to optimize what the trace shows for any measurement context.

Phase Noise (<-98 dBc/Hz at 10 kHz offset)

Clean local oscillator performance matters when you're looking at signals close to a strong carrier — modulated signals, narrowband interference, or oscillator quality measurements. With typical phase noise of <-98 dBc/Hz at a 10 kHz offset from a 1 GHz carrier (with a 1 kHz RBW and 10 Hz VBW), the UTS1032B resolves close-in spectral content without the phase noise pedestal washing it out.

1 Hz – 1 MHz Resolution Bandwidth

Resolution bandwidth in 1-3-10 steps, from 1 Hz all the way to 1 MHz, gives you the right sweep speed/selectivity tradeoff for any measurement. Drop the RBW to 1 Hz to separate signals closer together in frequency than most entry-level analyzers can manage; widen it for fast high-level surveys. Bandwidth accuracy holds to within 5% nominal, and switching between resolution settings introduces only ±0.2 dB relative amplitude uncertainty. The UTS1032B also offers FFT sweep mode (1 Hz – 30 kHz RBW range) when you need faster measurement times in narrowband settings.

10,001 Sweep Points

More points across a trace means finer frequency resolution per pixel and a much better chance of catching signals that fall between coarser bins. The UTS1032B provides up to 10,001 sweep points per trace — enough resolution to clearly distinguish closely-spaced signals, identify intermittent emissions, and read marker frequencies with confidence. Combined with four independent traces, you can simultaneously display raw, max-hold, min-hold, and averaged versions of the same span.

10.1-inch Multi-Touch Interface

The UTS1032B uses the same 10.1-inch capacitive multi-touch display (1280 × 800 HD resolution) found on UNI-T's higher-end performance series — a feature you don't usually find at this price tier. Pinch, drag, and zoom directly on the trace, set markers by tapping where you want them, and navigate menus the way you'd expect on a modern tablet. For lab environments where a USB mouse or keyboard is more practical, the UTS1032B accepts those through the USB Host port.

Marker Suite (4 Markers with 5 Functions)

Four markers with three modes (Normal, Delta, Fixed) cover the basic measurement vocabulary — reading absolute level, computing delta between two points, locking a marker to a frequency for sweep-to-sweep comparison. Five built-in marker functions go further: Marker Noise reads noise density in dBm/Hz at the marker, Band Power integrates total power over a user-defined band, Band Density reports power per Hz across that band, N dB auto-finds the points N dB down from a peak (useful for measuring -3 dB or -6 dB bandwidths), and Counter reads frequency to 1 Hz resolution.

Connectivity (HDMI, USB, LAN)

A full set of standard rear-panel interfaces makes the UTS1032B easy to fit into any workflow:

• RF Input: Type-N female, 50 Ω — the rugged industry-standard RF connector
• HDMI 1.4 display output — mirror the trace to an external monitor or projector for class demos or shared review
• USB-A 3.0 Host — thumb drive for screenshots and data export, plus mouse/keyboard if you prefer them
• USB-B 2.0 Device — SCPI communication with a PC
• LAN VXI-11 (10/100/1000 Base, RJ-45) — networked remote control
• 10 MHz reference in/out (BNC) — lock to an external timebase or share the internal reference with other instruments
• External trigger input (TTL, BNC, rising/falling edge)

SCPI Remote Control for Automated Test

The UTS1032B responds to industry-standard SCPI commands over both USB-Device (USB-B 2.0) and LAN VXI-11 (RJ-45). That means it drops cleanly into pyvisa, LabVIEW, NI-MAX, or any other test framework that talks to standard instruments — no proprietary protocol layer to learn, no special drivers beyond a USB or LAN connection. Whether you're building a production test rig, automating a parametric sweep, or running unattended overnight data collection, the interface scales the same way the rest of the bench does.

Software Options for Specialized Measurements

The UTS1032B starts as a capable general-purpose spectrum analyzer and grows into specialized roles through software options — the instrument hardware is the same; the options unlock measurement modes:

• UTS1000-AMK (Advanced Measurement Kit) — adds channel power, adjacent channel power (ACP), occupied bandwidth (OBW), time-domain power, carrier-to-noise ratio (CNR), third-order intercept (TOI), and harmonic measurements (up to the 10th harmonic), plus a spectrogram display for time-history visualization
• UTS1000-AMA (Analog Demodulation) — AM and FM demodulation analysis with modulation rate, depth, and frequency offset measurements (20 Hz – 100 kHz modulation rate range)
• UTS1000-VSA (Digital Demodulation) — ASK, FSK (2/4/8/16-level), MSK/GMSK, PSK (BPSK, QPSK, OQPSK, 8PSK), DPSK, and QAM (16/32/64/128/256) demodulation analysis with constellation, eye diagram, and EVM measurements
• UTS1000-EMI (EMI Pre-Compliance) — CISPR-aligned QP/AVG/PEAK detectors, EMI band sweep, and limit-line analysis. Pairs with the optional UTS-EMI01 near-field probe kit (3 mm to 10 cm probes) for board-level emission hunting

Built for Working Lab Environments

A spectrum analyzer that lives next to soldering stations, drilling, and general bench work will breathe in dust over time. The UTS1032B addresses this with forced-air cooling and a user-removable dust filter — pop it out, vacuum or blow it off, and slide it back. No tools, no service-center trip, no fan failures from dust accumulation. Operating range is 0 °C to +40 °C, storage to -20 °C / +70 °C, with full ±1 ppm timebase stability across the operational temperature range.

Educational and Training Labs

The 10.1-inch multi-touch interface makes the UTS1032B unusually approachable for students learning RF for the first time. Cost-conscious purchasing for university and technical college labs gets a fully-featured spectrum analyzer with the same UI patterns students will encounter on more expensive instruments later. Curriculum fit: communications systems, radio engineering, electronics fundamentals, antenna theory, EMC introduction.

Wireless Device Development (sub-3.2 GHz)

Cover 2.4 GHz Wi-Fi, Bluetooth (Classic and Low Energy), ZigBee, Z-Wave, sub-GHz ISM radios (315/433/868/915 MHz), and LoRa — the radio standards that dominate IoT and consumer wireless. Characterize transmit spectrum, harmonics, spurious emissions, and channel power (with the AMK option) during product development and pre-production testing.

EMI Pre-Compliance Investigation

Catch radiated and conducted emissions issues before sending boards to a full CISPR/FCC compliance lab. With the UTS1000-EMI option plus the UTS-EMI01 near-field probe kit (3 mm to 10 cm probes, 30 MHz – 3 GHz), the UTS1032B becomes a board-level emission hunter — sweep with QP/AVG/PEAK detectors, overlay limit lines, and localize hot spots on the PCB before they cost you a failed compliance test.

RF Service, Repair, and Maintenance

A capable bench instrument for two-way radio shops, broadcast engineering, antenna service work, and field calibration support. Marker counter functions, harmonic measurements (with AMK), and the touch interface make routine service work quick — the same RF diagnostic toolkit a more expensive analyzer offers, in a more accessible package.

Specifications

Accessories and Family Options

Included with Every Unit

• UTS1000B-series Spectrum Analyzer (instrument)
• Power cord
• USB cable (UT-D04)
• English download guide
• Multi-language safety manual
• Factory calibration certificate

Recommended Software Options

• UTS1000-AMK — Advanced Measurement Kit (channel power, ACP, OBW, TOI, harmonics, spectrogram)
• UTS1000-AMA — Analog Demodulation (AM and FM)
• UTS1000-EMI — EMI Pre-Compliance Software
• UTS1000-VSA — Digital Demodulation (ASK, FSK, MSK, PSK, DPSK, QAM)

Recommended Accessories

• UTS-EMI01 near-field probe kit — four probes (30 MHz – 3 GHz, 3 mm to 10 cm resolution) for PCB-level emission hunting with the UTS1000-EMI option
• UT-CK01 accessories kit — SMA/N adapters, cables, and antennas (824–960 MHz, 1710–1990 MHz, 2400–2500 MHz) for general RF setup
• BAG-B3 Carry Bag — protective transport case sized for the UTS1000 series

Family Members

• UTS1015B — 1.5 GHz, no tracking generator — lowest entry point
• UTS1015T — 1.5 GHz with tracking generator
• UTS1032B — 3.2 GHz, no tracking generator (this product)
• UTS1032T — 3.2 GHz with tracking generator

Frequently Asked Questions

Warranty

This instrument is backed by UNI-T's 3+2 Year Warranty — 3 years of standard coverage, plus 2 additional years free when you register your product. That's 5 years of total protection at no extra cost.

The warranty covers manufacturing defects and component failures under normal use conditions. UNI-T instruments are built for professional daily use, and our warranty reflects that commitment to long-term reliability.