However, the cost of owning a VNA has now been reduced to only US$50 thanks to the NanoVNA. Until just recently, VNA's have cost roughly US$500 for a decent USB PC based unit like the miniVNA or PocketVNA, and have set people back thousands to tens of thousands of dollars for bench top units. Compared to a standard SWR or network analyzer a VNA supplies you with phase information as well. For example if you are building a QFH or ADS-B antenna to use with an RTL-SDR, a VNA can help ensure that your antenna is properly tuned to the correct frequency.

It is a very useful tool to have if you are building and tuning home made antennas, filters or other RF circuits.

It can also be used to characterize and tune filters. ExtIO with Decimation & Tuner Bandwidth ControlsĪugReviews of the NanoVNA: An Ultra Low Cost $50 Vector Network AnalyzerĪ vector network analyzer (VNA) is an instrument that can be used to measure antenna or coax parameters such as SWR, impedance and loss.Manual gain controls and decimation driver.Measuring Traffic Volumes with Passive Radar.SignalsEverywhere Direction Finding Tutorial.Measuring Filter Characteristics & VSWR.Performing Replay Attacks with RTL-SDR and RpiTX.QRP (FT8, JT9, WSPR etc) Monitoring Station.Decoding 433 MHz ISM Band Weather Stations.GOES 16/17 and GK-2A Weather Satellite Tutorial.

Nanovna network analyzer