TinySA Ultra Spectrum Analyser, 4-inch

Quickly find signals from 100 kHz to 6 GHz

• Two operating modes: standard 0.1–800 MHz and extended ULTRA up to 6 GHz (activated with code 4321).
• 2-in-1: a full-featured spectrum analyser and a signal generator (sine/square/two-tone).
• Precise measurement setup: RBW filters 200 Hz–850 kHz, 0–31 dB attenuator, additional 20 dB LNA.
• Field-friendly: 4" colour touchscreen display, battery life up to 2 hours.
• PC control: USB Type‑C — works as a computer-controlled analyser/generator, auto-calibration.

Description

TinySA Ultra is a portable spectrum analyser that helps you quickly “see” the airwaves and verify radio equipment performance — from low-frequency sources and harmonics to high-frequency ranges in ULTRA mode. The device is suitable for interference diagnostics, emission monitoring, antenna path tuning, filter and generator testing, as well as for training and laboratory tasks. The 4-inch colour resistive touchscreen displays up to 450 sweep points, allowing you to cover a wide frequency range in a single view and quickly assess signal levels.

For more accurate measurement conditions, it features switchable resolution bandwidth (RBW) filters from 200 Hz to 850 kHz and a stepped input attenuator from 0 to 31 dB with 1 dB steps. When you need to pull out weak signals, the built-in 20 dB low-noise amplifier (LNA) helps (important: the attenuator and LNA are not used at the same time). The instrument includes a built-in calibration generator for self-test and automatic calibration of low levels.

Another strong point of TinySA Ultra is its signal generator mode when the device is not busy analysing: a sine output up to 800 MHz is available, as well as square/two-tone operation up to 4.4 GHz (depending on the mode). USB connectivity makes TinySA Ultra PC-controllable, which is convenient for measurements, logging, and remote operation. The built-in battery provides at least ~2 hours of standalone use. Observe the input limits: maximum level is +10 dBm — exceeding it may damage the device.

How to enable ULTRA: menu CONFIG → MORE → ENABLE ULTRA → enter code 4321.

Specifications

• Analyser frequency range: 100 kHz–800 MHz (Normal), 100 kHz–6 GHz (ULTRA, code 4321)
• Display: 4.0" colour resistive touchscreen
• Sweep points: 51 / 101 / 145 / 290 / 450; speed over 1000 points/s
• RBW (resolution filters): 0.2 / 1 / 3 / 10 / 30 / 100 / 300 / 600 / 850 kHz
• Attenuator: 0–31 dB, 1 dB step (not together with LNA)
• LNA: built-in, 20 dB, noise figure about 5 dB
• Input impedance: 50 Ω with attenuator at 10 dB and above
• Max input level: +10 dBm (without attenuator); short-term up to +20 dBm with 30 dB attenuator
• Input recommendation: for accuracy, keep the level no higher than −25 dBm
• Power detector: 0.5 dB step; typical accuracy after calibration ±2 dB
• Phase noise: −90 dB/Hz @100 kHz; −120 dB/Hz @1 MHz
• Dynamic range: up to 70 dB (RBW 30 kHz)
• Audio output: 3.5 mm for listening to the demodulated signal (AM only)
• Signal generator: sine 100 kHz–800 MHz; square/two-tone up to 4.4 GHz; level −113…−18 dBm (1 dB step)
• Modulation: AM/FM, sweep within the selected range (mode-dependent)
• CAL calibration output: square wave −35.6 dBm; 1/2/4/10/15/30 MHz
• Connectivity: USB Type‑C (PC control)
• Battery: 3000 mAh; operation ~2 h; charging ~1 h at 500 mA

Package contents

• TinySA Ultra (with 3000 mAh battery) — 1 pc.
• USB Type‑C data cable — 1 pc.
• 30 cm ALSR100SMA cable — 2 pcs.
• SMA female–SMA female adapter — 1 pc.
• Telescopic antenna — 1 pc.
• 32 GB MicroSD memory card — 1 pc.