TinySA Ultra+ ZS407

TinySA Ultra+ ZS407

The TinySA Ultra+ ZS407 is the 2025 flagship evolution of the world-renowned TinySA series. It isn’t just a gadget; it’s a high-performance Spectrum Analyzer and Signal Generator that fits in the palm of your hand. While the standard mode handles frequencies up to 900MHz, the specialized Ultra Mode unlocks measurement capabilities all the way to 7.3GHz, making it an indispensable tool for diagnosing Wi-Fi, FPV video links, and advanced satellite communications.

Key Features

Equipped with a vivid 4.0-inch IPS touchscreen, the ZS407 offers vastly improved visibility and a faster 450-point scan resolution. One of its most significant upgrades is the built-in 20dB LNA (Low Noise Amplifier), which now operates effectively up to 7.3GHz, allowing you to “hear” extremely weak signals that previous models would miss. When you’re done analyzing, switch to Signal Generator mode to output precision sine or square waves for hardware testing.

Specifications

Under the hood, the ZS407 features a massive 5000mAh battery, providing up to 10 hours of field use—nearly double the life of the original Ultra. The Resolution Bandwidth (RBW) is highly adjustable from 200Hz to 850kHz, allowing you to zoom in on narrow signals with surgical precision. It also features a -100dBc/Hz phase noise floor (at 10kHz offset), rivaling benchtop equipment that costs ten times as much.

Applications

The TinySA Ultra+ is a Swiss Army knife for RF Engineers and Ham Radio Operators who need to verify transmitter purity or hunt for interference. For FPV Pilots, it’s the ultimate field tool for checking video transmitter (VTX) health and identifying which channels have the least noise. It is also highly effective for EMC Pre-compliance Testing, helping developers spot “leaky” electronics before sending them for official certification.

Technical Specifications