From Jerry Ritchie of station WA5OKO:
The HP-8753C Vector Network Analyzer cost $30,000 when it was new. Its weight is about 50 pounds and takes up a lot of space on my work bench. It was one of my first instruments that provided Smith Charts. 20 years later, they about the size of a pack of cigarettes and cost about $400 and have a range of 1 MHz to 3 GHz. The MiniVNA Tiny’s size makes my MFJ-259B look like a boat anchor.
I compare the VNA instrument to the original cell phone. When cell phones first came out, I couldn’t imagine why I would ever need one. Most amateurs look at Smith Charts like they are something from outer space, but they will eventually talk about that SWR meter they used in the old days to test antennas.
I hope this article will make the transition a little easier.