I'm using Wifi Analyzer for my Android-based phone and it works just great. I need a similar tool, free, to be used on my Windows-based PC.
These are the ones that I've found so far:
inSSIDer 4, but it isn't free in any of the versions
Xirrus Wi-Fi Inspector is claimed to be free, but it requires you to enter a strange set of data (including company name, size or industry it operates in), before you can download it, so it isn't an option for me (I neither provide false data nor give away such sensitive one to just test a tool)
Is there any other recommendation, I can take a look at?