Save your calibration file via so you do not have to repeat this process during future sessions. 5. Visualizing Data: Traces and Charts
: Get the latest binary release from the official NanoRFE software page .
: NanoVNA-QT is the primary method for flashing new firmware to the S-A-A-2 hardware. Setting Up the Connection nanovna-qt pc software with the s-a-a-2
Once connected and calibrated, the software offers several powerful views. A. Smith Chart Analysis
Hunting for markers with a stylus on a 4-inch resistive touchscreen is an exercise in patience. This is where enters the chat, transforming the S-A-A-2 from a portable "swiss army knife" into a serious desktop vector network analyzer. Save your calibration file via so you do
Instead of squinting at the S-A-A-2’s screen while standing on a ladder, leave the VNA connected to the antenna feedline and run a 10-foot USB cable to your laptop. Sweep 400-470 MHz for a UHF amateur band antenna. NanoVNA-QT shows the as a numeric marker. Adjust your antenna while watching the Smith chart curve move in real-time.
Set Start , Stop , or Center/Span frequencies tailored to your target application (e.g., 144MHz for 2m ham band or 2.4GHz for Wi-Fi). : NanoVNA-QT is the primary method for flashing
Open the software and go to the Device menu. Select Connect to VNA . You should see a serial port (e.g., COM3 on Windows or /dev/ttyUSB0 on Linux).
: Increases the frequency measurement point density up to 1024 points per sweep, compared to the standard max of 201 points available on the standalone device screen.
Select and enter your lowest frequency (e.g., 140 MHz).