In this video I did a review of a NanoVNA-F V2 vector network analyzer along with some experiments followed by a teardown. You can get one from https://ban.ggood.vip/10GYz High resolution teardown pictures are at http://www.kerrywong.com/2022/01/07/teardown-of-a-nanovna-f-v2-vector-network-analyzer/
00:00 Background info
06:25 Powering on, menu system
07:32 Measuring whip antennas (single band and dual band)
15:12 L/C measurements, Smith chart
17:20 S21 measurement
18:34 Sweep output flatness, signal output quality
24:28 Teardown
33:57 Conclusions