This tech brief illustrates how to perform a triple-channel capture for the purpose of monitoring roaming clients. It is certainly possible to scale this technique beyond three adapters, but for simplicity’s sake, we’ll stick with three. For the sake of examples, we’ll be using the usual 2.4 GHz suspects of channels 1, 6, and 11 even though the techniques are applicable for any channels in either the 2.4 or 5GHz bands.