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I recommend the NanoVNA, which is about $50.
It's definitely not top of the line, and it does take a bit of playing with to get used to. However it has a heck of a lot of features for the price point.
I'll second this. I opted for the more expensive version to get the larger screen and N connectors (instead of SMA) and have been very happy with it.
Ohhhh type N connectors! I have to check that out.
I will check it out! Thanks!
There is also the TinySA. Which is a similar idea as the NanoVNA, but it's for spectrum analysis instead of an antenna analysis.
With the Ultra you can see the WiFi in the room ;)
Very cool!
I have an RTL-SDR that lets me do that too. I also have aircrack-ng on one of my Linux installs, for research purposes.
Yes....reasearch...haha
In my defense, it hasn't been used in a long time.
But the best way to learn is by doing. And I had interest in ethical hacking/penetration testing