For the best accuracy, especially above 500MHz, it is recommended to calibrate directly within the NanoVNA-QT software rather than relying solely on the device's internal calibration. SOLT Calibration: The software supports SOLT (Short-Open-Load-Thru) calibration. Custom Kits:
The S-A-A-2 hardware is fundamentally linked to the NanoVNA-QT software from a technical perspective. It is important to note that when using the USB connection to a PC, the device transmits raw, uncalibrated data. The correction factors and calibration must be applied within the PC software itself. This architectural choice makes the PC-side software, like NanoVNA-QT, indispensable for achieving accurate lab-quality measurements.
(NanoVNA V2) series. While the handheld S-A-A-2 is powerful on its own, the NanoVNA-QT software unlocks high-resolution data visualization, advanced calibration, and critical maintenance features like firmware updates. Key Features and Capabilities nanovna-qt pc software with the s-a-a-2
Connect the input of a filter to Port 1 and the output to Port 2. Set the trace to S21cap S sub 21
Here is a complete guide to setting up and using the software with your hardware. Why Use NanoVNA-QT with the S-A-A-2? For the best accuracy, especially above 500MHz, it
Do not use NanoVNA-Saver for firmware updates on the V2; only use NanoVNA-QT. Connecting to S-A-A-2 Connect your S-A-A-2 to the PC using a USB cable. vna_qt.exe
: Connect via USB and launch the .exe . Select your device under the Device menu. If it doesn't appear, click Rescan . 2. Configuring the Sweep It is important to note that when using
The trace looks like a "Shaggy Carpet" (noisy).
pane, clear existing measurements, select your calibration type (e.g., SOLT for 2-port measurements), and follow the prompts to attach each standard to the cables. Firmware Updates
Here is a quick-start guide to getting them connected and taking measurements. 1. Installation & Connection
: Measurements appear inaccurate after changing the sweep range. Solution : The S-A-A-2 automatically clears the active calibration when the frequency sweep range is changed. You must either perform a new calibration or recall a saved calibration that matches the new frequency range.