Sangean U4 DBT Operating Instructions Manual page 31

Alarms
Your radio has  separate alarms which can be set to wake you to
DAB, FM radio or buzzer alarm. Each alarm can be set to sound
once, daily, on weekdays or at weekends. The alarms can be set
whether the radio is on or in standby mode. In the event of a power
interruption your radio has a built in memory chip that will maintain
your alarm settings for when the power is restored.
Note:
If no buttons are pressed for a while, the radio will exit the alarm
setup.
Setting an alarm
. Press and release the Alarm  button to enter the setting, 'Alarm
1 Setup' will show on the display and alarm 1 icon
the display. Or press and release the Alarm  button to enter
alarm  setting.
. Press the Tuning control to enter the setting menu.
3. Rotate the Tuning control to select On or Off. If Off is selected
any current setting for that alarm will be cancelled. With 'On' selected,
press and release the Tuning control to cause the alarm hour digits
to flash on the display.
4. Rotate the Tuning control to choose the desired hour for the alarm
and then press the Tuning control to cause the alarm minute digits
to flash on the display.
5. Rotate the Tuning control to choose the desired minute for the
alarm and then press the Tuning control. The alarm duration will
flash on the display. If the radio has been set to the 12 hour clock
format, there will also be an option here for setting AM or PM for
the alarm time
GB
will flash on
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