Not too long ago, something similar (but generally MUCH larger) would have been only found in science magazines or in the dreams of amateur radio operators and would set you back a thousand dollars or more. But along comes the super-cheap and super-capable micro processors such as Arduino and the Raspberry Pi...and the inexpensive VNA was born that will only set you back only around $200 and a cheap one, much less. Enjoy this short video introduction and review by Dave Casler of the Mini-1300. At the bottom of the page is an instruction manual of the analyzer.
This is a page that has been well ignored for a number of years and deserves more attention. There are many more analyzers on the market including excellent ones by RigExpert (we got an insecure site warning from Malwarebytes but it seemed fine at the time) and (now defunct) MFJ. As of October 29, 2026, they are still apparently selling existing stock and access to product manuals seems still available. Please check before ordering and do so at your own risk (please, for your protection, use a credit card).
Here is the 12 page operating manual for the Mini 1300. Note that the digital modes (section 15 at the end of the document) does not exist in firmware version 3.5x but did if you have one with the original firmware.