In Windows, you can check how strong the Wi-Fi signal is at your location in ... of [Wi-Fi name]” you can then see how good the signal strength is — the more dark, black arcs you see there ...
To test wireless signal strength, we pair an Ekahau Sidekick 2 diagnostic device with the company's Survey software. (Disclosure: Ekahau is owned by PCMag.com's parent company Ziff Davis.