This is an early example of what I'm working on: an interactive viewer for VNA data. You can zoom, pan, etc. It uses the Flot library, and is mashed together from quite a few examples.
The data shows the passband of a crystal filter, with or without an impedance matching network. Don't worry too much about the actual data, there are still some problems with it, I know.
[ see data ]
[ see data ]