: The software includes a dedicated interface for performing firmware updates
Go to the menu to add or delete visual lines. You can assign each trace to a specific channel and format:
If macOS blocks execution due to an unsigned developer warning, bypass it via . Linux Setup
With your calibrated setup, connect an antenna to Port 1. Look at the SWR trace. The lowest dip in the curve represents the point of best impedance match. By placing a marker at that dip, NanoVNA-QT will display the exact SWR, resistance, and capacitance/inductance. If the dip is lower than your target frequency, the antenna elements are too short; if it is higher, they are too long. 2. Measuring a Bandpass Filter (S11 & S21)
Connecting your S-A-A-2 to NanoVNA-QT requires establishing a stable Virtual COM Port link over a standard USB Type-B or Type-C connection. Step 1: Drivers and System Prep NanoVNA Software & Drivers - NanoRFE
NanoVNA-QT is the primary tool for updating your S-A-A-2 firmware to fix bugs or add features. Enter DFU Mode:
: On Windows, you may need to install the Cypress USB Serial driver included in the download. Linux and macOS typically recognize the device automatically via USB CDC.
Once connected, the software will immediately begin looping continuous real-time sweeps. 3. Configuring the Sweep Parameters
NanoVNA-QT is developed using the Qt framework, making it compatible with Windows, macOS, and Linux. Windows Setup
. Unlike the original NanoVNA software, it was developed by NanoRFE to support the unique architecture of the V2 hardware, offering enhanced sweep speeds and higher data resolution. Core Features & Benefits High-Resolution Sweeps
: While the handheld S-A-A-2 unit may be limited to 201 sweep points, the NanoVNA-QT software allows for up to 1,024 points per sweep, providing much finer resolution for complex filter or antenna tuning.
: Quickly export raw data to CSV or capture high-quality screenshots of charts for reports. for cable length measurements? S-A-A-2 - Zenith Antenne
The software provides a secure method to update the S-A-A-2 firmware.