You must first set a radio preset by tuning to a radio station and holding down the 1, 2, or 3 button to save it. After this, the preset will be an option when setting up a new alarm.

When setting up the alarm, the options will be displayed in the following order:
​​​​​​1. Set Alarm Hour.
2. Set Alarm Minute.
3. Set Recurrence - Weekday/Once.
4. Set Ringtone - 4 built-in alarm tones or radio preset 1/2/3 (see information above).
5. Set Light - On/Off.

If the light is set to 'On' when the alarm is set up, once it goes off it will gradually increase in brightness over 10 seconds.