Likewise. I would recommend V2 Plus4 or V2 Plus4 PRO from an official store. There are several other version but I like V2 Plus4. Today perhaps PRO version. Battery lasts a long time and results are good enough. If the tool works at 4GHZ, it will surely be good at 50MHz and 1GHz. I am not totally satisfied with PC software. It is usable but not well finished.
Then there is the VNA6000.
