Not recently; it's bee a year or two since I needed (and I use the term loosely) to find out and map the wireless bands and strengths that are in my house. Wifiman doesn't appear to expose the specific channels each signal is bound, just a strength. By contrast, something like WiFiAnalyzer shows which APs are using which channels, what each signal strength is, and which channel zones are empty. I don't need it often, but for something like setting up an AP for Quest PCVR, knowing where the blank spots are is pretty convenient.