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20 Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual
2-6-7 GPS Alert Options (ALERT)
The GPS alert is usually set to ON so that if the GPS navigation receiver is disconnected, the alarm sounds.
1. Select GPS/DATA, then SETTING.
2. Select GPS ALERT.
3. Select ON or OFF as desired.
2-7 GPS Simulator (GPS SIM)
The GPS Simulator is set to OFF whenever the radio is turned ON or whenever real GPS data is available through
the COM port. However, if you want to test the GPS Simulator, turn it ON as follows:
1. Select GPS SIM, then select ON or OFF as desired.
Whenever the GPS Simulator is turned ON, simulated Speed Over Ground
(SOG), Course Over Ground (COG), and LL position appear on the screen. This
data is updated automatically during the simulation.
IMPORTANT: It’s not possible to send a DSC transmission when you’re in GPS Simulator mode.
2-8 Reset to Factory Defaults (RESET)
Use RESET to return every setting to the factory defaults EXCEPT all MMSID settings and the entries in your
buddy list.
1. Select RESET. The radio asks for confirmation.
2. Select YES to reset the radio and return to the menu.
GPS/DATA
LL DISPLY
COG/SOG
> GPS ALERT
GPS ALERT
> ON
OFF
MENU SELECT
RADIO SETUP
GPS SIM
> RESET
RESET RADIO
ARE YOU SURE
> YES
NO
MENU SELECT
DSC SETUP
RADIO SETUP
> GPS SIM