It's good to know. I'm gearing up for HF QRP going from tree to tree with wire Anteenas.
The Nano VNA is a game changer.
I've occasionally made it 62 crow miles into a Winsystem Repeater (440 Mhz) under suboptimal conditions with an Abbree Anteena.
This Baofeng uv-5r 8 watt (ish) tripower $36.00 on Amazon. What a deal. Large capacity battery, USB Charging and other accessories. Plus it's compatible with Tid Radio Bluetooth Programmer, what more could you want for $36 bucks? Plus it's unlocked.
I'm more of a Classicist- Ancient Greek, Sanskrit and so forth; but, I can hang with the Techno Nerd stuff, both Analog and Digital.
The Instrument was Calibrated and I have a high level of confidence in the results given the purposes at hand.