RuCd - Waterfall Display

Use the Left/Right direction keys to move the cursor along the active trace.

Hold the 0 and Up/Down direction keys to select the next or previous trace.

Hold the 0 and +- keys to expand/compress the Z-axis.

Other items available are:

* HELP - opens the help menu

* SPECTGM - display the same data as a Spectogram 

* EDIT - returns to waterfall extended menu set-up

* SAVE - save the Bode data as a CSV file

* BACK - return to the Bode Setup menu
