Channel Scan Menu Key Sequence: Scanner > Scan Channels CHS Channel Scan Menu Signal Standard Opens the Signal Standards list dialog to select a signal standard. Channel Opens the Channel Editor list to set a valid band in the selected signal standard. Number of Channels Sets the number of channels to be displayed. From 1 to 20 channels can be displayed. Channel Step Size Sets the number of channels to skip between displayed channels. Back Returns to the “Scanner Menu”.