GlassWire monitors what's using network bandwidth on your device ... Normal routers also have this, with Asus calling it "Traffic Analyzer" and TP-Link calling it "Traffic Monitor" and hiding ...

The NanoVNA made network analyzers cheap enough for almost everyone. Now you can get a $49 spectrum analyzer to go with it. Is it worth it? Watch [IMSAI Guy]’s video after the break for his opinion.

Anyone familiar with the NanoVNA, a small but full-featured vector network analyzer that we’ve featured ... output looked clean across the specified bandwidth, and the frequency was spot on.