Garmin GPSMAP 178 Owner's Manual page 91

There are two ways to add a new entry into the directory.
To add a new Directory entry:
1. Press Menu, then highlight 'New Item' and press ENTER.
2. Or, with the Directory Tab highlighted press the Arrow Keypad DOWN, highlight an empty field and
press ENTER to access the New Directory Item window.
The New Directory Item window allows you to input information of a known contact.
To add the MMSI number, Name, or Comment:
1. Press UP/DOWN on the Arrow Keypad to highlight the MMSI, Name, or Comment field.
2. Press ENTER to highlight the first digit on that field.
3. Press UP/DOWN on the Arrow Keypad to enter the numbers/letters.
4. Press LEFT/RIGHT on the Arrow Keypad to move to the next position.
5. Press ENTER to accept the entry.
6. Press UP/DOWN on the Arrow Keypad, highlight the 'Delete' button and press ENTER to delete the
entry, or highlight the 'OK' button and press ENTER to accept the entry.
After creating a New Directory Item entry, the name created is attached to that particular MMSI
number. If you return to the Log, the new name is displayed under the corresponding MMSI number.
Another way to input a name is from the Entry Review Page or the DSC Distress Call or DSC Position
Report Pages. The Name field is only available in the GPS. Names cannot be sent like the MMSI numbers
to other DSC users.
DSC Setup
Garmin chartplotters have the ability to turn DSC 'On' or 'Off'. This option is beneficial for users who
have more than one GPS chartplotter. If you want only DSC to display on a particular chartplotter, turn
DSC off on the remaining Garmin chartplotters that support DSC.
Reference
Main Menu: DSC Tab
Adding a Directory Entry
DSC Setup
"Simulate" options only appear while in
Simulator mode.