Furuno SC-120 - Manual (Page 43)

3. OPERATION
3-5
3.5 Alarms
The SC-120 can alert you with audio and visual alarms when GPS data and
DGPS data are lost. To set the alarm mode;
1. Press the [MENU] key to show the menu.
MAIN MENU
SATELLITE
DGPS
I/O SETUP
INST MENU
ERASE
TRIP MENU ALARMS
MESSAGES
GPS SETUP
SYS SETUP
SOFT VER.
OTHERS
Main menu
2. Choose ALARMS and press the [ENT] key.
ALARMS
BUZZER : LONG
DGPS : OFF
HDG RESTORATION: MAN
HDG BACKUP: 5MIN
Alarm menu
3. Press the [ENT] key.
SHORT
LONG
CONSTANT
Alarm menu, GPS buzzer options
4. Use ▲ or ▼ on the Omnipad to choose buzzer type desired.
SHORT: Two short beeps
LONG: Three long beeps
CONSTANT: Continuous beep
5. Press the [ENT] key.
6. Select DGPS, HDG RESTORATION or HDG BACKUP as appropriate.
DGPS: Turns on/off DGPS alarm.
HDG RESTORATION: Choose how to restore GPS signal, automatically
or manually.
HDG BACKUP: Choose how long to wait before stopping output of
heading, when GPS signal is lost.