This new Version V0.4.6 features a 4.0-inch touchscreen display (480 x 320), a frequency range of 100kHz to 5.4GHz, built-in ESD protection, and a 32GB micro SD card for convenient data recording and storage.
SeeSii TinySA Ultra+ ZS406 Spectrum Analyzer (5.4 GHz) – Handheld RF Spectrum Analyzer & Signal Generator, 4.0" Touch, 32 GB SD, with 21 dB USB-C LNA
by SeeSii
Original price
$219.99
-
Original price
$219.99
Original price
$219.99
$219.99
-
$219.99
Current price
$219.99
The SeeSii TinySA Ultra+ ZS406 is a compact, handheld spectrum analyzer designed for fast, accurate RF work in the field or lab. It covers 100 kHz to 5.4 GHz (Ultra mode up to 6 GHz), adds ESD protection for better reliability, and logs data directly to the included 32 GB micro-SD card. Use it as a portable spectrum analyzer for MF/HF/VHF/UHF and microwave checks—or switch to signal-generator mode for quick bench setups and calibration.
PC users can connect by USB for full PC-controlled spectrum analyzer operation and scripted measurements. This kit also includes the ZK06-UM 21 dB low-noise amplifier (LNA)—a USB-C powered module with broadband coverage that boosts weak signals without adding much noise, perfect for antenna and receiver testing.
- See the match, fix the match — Measure S11/S21 and view VSWR/SWR, phase, delay, and Smith chart for real-world matching.
- Wide, practical coverage — Sweep 10 kHz–1.5 GHz for antennas, filters, cables, baluns, and matching networks across MF/HF/VHF/UHF.
- Handheld freedom, desktop control — 2.8-inch color touchscreen in the field; USB-C to PC/Android for scripted sweeps and clean data capture.
- Cleaner measurements outdoors — Metal shield and ESD protection reduce interference and mishaps near transmitters.
- Fast workflow — Fixed 101-point scanning with clear traces; save/recall setups to switch projects quickly.
- Ready to measure — SMA calibration kit, SMA M-M RG174 leads, and SMA F-F adapter let you calibrate at the measurement plane and go.
- Model: TinySA Ultra+ ZS406 (FW V0.4.6)
- Analyzer Range: 100 kHz–5.4 GHz (Ultra to ~6 GHz)
- Low/High Ranges: 100 kHz–800 MHz (LF); microwave HF range to 5.4 GHz (Ultra ~6 GHz)
- RBW: 200 Hz–850 kHz (selectable)
- Display: 4.0" capacitive touchscreen, 480×320, ~450 points/trace
- Signal Generator: Sine 0.1–800 MHz; square/dual-tone to ~4.4 GHz; internal cal source
- Data / Control: USB type-C, CDC protocol; TinySA-APP PC software (Win/Linux)
- Storage: 32 GB micro-SD (included)
- Battery: 3000 mAh rechargeable; USB-C charge (~3 h typical)
- Protection: Upgraded ESD protection
- Included LNA: ZK06-UM 21 dB low-noise amplifier, ~10 MHz–6 GHz, USB-C powered
- In the Box: TinySA Ultra+ unit, ZK06-UM 21 dB LNA, 32 GB micro-SD, USB-C cable, quick start guide
