Standard Horizon HX280S Owner's Manual page 29

ALt ( WX ALERT )
Function: Enable/Disable the Weather Alert feature.
Available Values: ALL / SC / CH / OFF
Default: on SC
ALL: When on a weather channel, the radio will alarm when
the Weather Alert is received.
SC: Emits a loud beep when the Weather Alert is received while scanning
the Weather channels.
CH: Emits a loud beep when the Weather Alert is received while receiving
the Weather channel and/or scanning the Weather channels.
OFF: Disables the Weather Alert function.
HX280S Page 29