To properly use the Clear Scan feature on the WBS base station, enable or activate the wireless microphone frequencies so that the WBS base station can see them when the scan feature is activated. Then turn on the WBS station (do not turn on the WTR beltpacks at this time!) and select the Scan feature by pressing the Menu and Set buttons on the front panel of the base station simultaneously for three seconds, this will start the scan process. When the WBS base is done scanning the front panel display will show the most interference free Group and Channels. Press Set to select a Group for the base station. Then power up the beltpacks and set them to the same Group and to the appropriate channels in that group. This finishes the Scan process and should allow for the most interference free frequencies to use on the WBS system along with the other wireless microphones to be used.