Review on Upgraded NanoVNA-F V2 Vector Network Analyzer 50KHz-3000MHz HF VHF UHF VNA Antenna Analyzer 4.3 Inch With 5000MA-H,Measuring S-Parameter Voltage SWR, Phase, Delay, Smith Chart by Brandon Roberts

The fact that VNAs can be had at this level of quality, for this level of budget, will alter the amateur radio culture forever. Now it's within reach for even new hams on constrained budgets. If one can't afford this model F, there are even cheaper options. So with salvaged wire and an investment in a device that costs less than a decent HT, one can make fantastic antennas and get them resonant for transmitting around the world.This is perfect for tuning loading coils on vertical antennas, or adjusting whip length on hamstick dipoles. Between those two antenna types, I have worked all states and all continents, even with tiny, compromise, fairly low-to-the-ground portable antennas. And the NanoVNA made it possible.This model isn't perfect; the display is very slightly misaligned in the case opening, and I'm always scared of damaging the tiny SMA connectors. But for the price, it is very worth it, and we need to use our consumer dollars for rewarding these NanoVNA manufacturers for furthering the open-hardware nature of the amateur radio hobby. Buy one for yourself, and another for a new ham who doesn't have one yet! They're worth it!