This is what it says on my instruction booklet.
Save your pre-set stations
There are six numbered pre-set buttons, which can be store and recalled stations for each band. While listening to a radio station you would like to save as a pre-set, press and hold one of the buttons numbered 1 – 6 until you hear a beep. The button you pressed is now the pre-set button for that station.
Hope that helps
Maria, July 2007