A Voltage Standing Wave Ratio (VSWR) meter useable at the 2. Settings screen - enables user to change frequency step, which affects both rotary encoder changes and sweep screen, screen contrast, perform calibration. NanoVNA-F VNA SWR Meter VHF UHF Antenna Analyzer + 4.Impedance sweep screen - impedance graph is updated every second periodically. Cable and Antenna Analyzers Cable and Antenna Analyzers The Site Master series is the leading choice for the installation, maintenance, and troubleshooting of microwave cable and communication systems.Capture small, interfering signals with wideband, real-time analysis. Make 5G field test a reality with wide analysis bandwidth up to 120 MHz. Real time impedance graph screen - shows real and imaginary part of impedance graphs on the same screen, partical graph update while user is changing frequency with rotary encoder. Configure FieldFox as a cable and antenna analyzer (CAT), vector network analyzer (VNA), spectrum analyzer, or an all-in-one combination analyzer.Frequency sweep screen - shows complete SWR plot, which is updated approximately every second.Real time SWR graph screen - shows partially updated SWR plot, plot is updated while user is changing the frequency using encoder, plot is shifted left or right depending on frequency change direction.By short press - change the band, by long press go to next screen. By rotating rotary encoder user can change the frequency. Details screen - shows various numeric parameters, such as forward/reflected signals, current frequency/band.Adafruit PCD8544 (from Arduino library).The nano-VNA does these perfectly and does so from 50kHz to 900MHz, some versions even from 10kHz to 1.5GHz. Rotary encoder library modified fork - I have no experience using a vector network analyzer but the functionality I am interested in as a ham building an antenna, is the standing wave ratio curve and the impedance measurements.Reflectometer and attenuators as per. ![]() SWR from 160m band up to 6m band, real/complex impedance, return loss (s11), draw SWR chart, Pocket Arduino Nano based antenna VNA analyzer / plotter can be used to measure antenna ![]() ![]() Pocket Arduino Nano 160 to 6m band VNA antenna analyzer based on AD9850 module for field days.
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