[I realize this OT to OpenWrt, but if I get help with this, the resulting wifi-heatmapper program will help you measure Wi-Fi around your house.]
I'm a collaborator on a WiFi Heatmapper project (see https://github.com/hnykda/wifi-heatmapper). It lets you draw a map of the wifi signal strength at various points around your house to show where it's weak.
The problem: Windows localizes the netsh wlan show interfaces output that displays the wifi signal strength (and other information). wifi-heatmapper has a set of localization files that map those strings back to a canonical name (like rssi, txRate, etc.)
My request: If you have access to a non-English Windows system, please consider executing the netsh wlan show interfaces command and follow the instructions at: https://github.com/hnykda/wifi-heatmapper/issues/26 (We already have a few other languages, but having duplicate information is always better.) You can post the info to the issue in Github or send the data directly back to me.
Many thanks.