Professional spectrum analysis in your pocket — up to 7.3 GHz

100 kHz–7.3 GHz range in ULTRA mode — from HF to microwaves.
Bright 3.98" IPS TFT with a resistive touchscreen — convenient for field work.
Built-in LNA up to 20 dB — better visibility of weak signals without external amplifiers.
Signal generator functions — sine up to 900 MHz and other modes up to 6.3 GHz.
Auto-calibration and PC control via USB Type‑C — fast diagnostics and logging.

Description

TinySA Ultra plus ZS-407 is a portable spectrum analyser for accurate searching, measuring and monitoring of radio signals across a wide frequency range. The device is suitable both for amateur radio and antenna system tuning, and for service tasks: checking filters, amplifiers and oscillators, tracking down spurious emissions, and assessing interference in field conditions. Thanks to its compact корпус and a high-capacity 5000 mAh Li‑polymer battery, the analyser is easy to take on site visits and use where stable power is not available.

Scanning is displayed on a 3.98-inch IPS TFT LCD with touch control: a crisp image, clear menus and quick access to settings make operation intuitive even during on-the-spot measurements. The device features two operating modes — Normal and ULTRA. In Normal you get fast analysis in the basic range, while ULTRA unlocks the full capability up to 7.3 GHz. Built-in configuration options (bandwidth settings, stepped input attenuator) help adapt the input path to real-world measurement conditions and reduce the risk of overload.

A key advantage is the built-in low-noise amplifier (LNA) with up to 20 dB gain, which improves performance with weak signals. When not used as intended, TinySA Ultra plus can operate as a generator: for testing RF paths, checking receiver sensitivity and quick diagnostics. Control is also possible from a computer via USB, and self-test and self-calibration functions (using the built-in generator) save time when preparing for measurements.

Important: to enable the full range, activate ULTRA mode: CONFIG → MORE → ENABLE ULTRA, unlock code 4321.