10-2
5. Consulting a nautical chart, enter offset
with numeric keys.
6. Press the ENT key.
7. Press the MENU key.
LL
appears on the display. To remove the
offset, enter zeroes at step 5 in the above the
procedure.
10.3 Selecting Navaid
If your boat is equipped with other position-
fixing equipment you may wish to use its po-
sition fixes instead.
1. Press the MENU key.
2. Press the [0] key.
3. Press the [2] key.
4. Operate the Cursor Pad to select NAV AID.
5. Operate the Cursor Pad to select OWN
(internal GPS), LC (Loran C), DE
(Decca), or ALL. (Select ALL for mul-
tiple navaid connection. In this case posi-
tion data is read in the order of GPS, Loran
C, Decca, etc.)
6. Press the MENU key.
10.4 Displaying True orMagnetic Bearings
You may display bearing relative to true North
(true bearing) or relative to magnetic North
(magnetic bearing).
1. Press the MENU key.
2. Press the [0] key.
3. Press the [2] key.
4. Operate the Cursor Pad to select BEAR-
ING.
5. Operate the Cursor Pad to select TRUE
or MAG.
6. Press the MENU key.
10.5 Magnetic Variation
The location of the magnetic pole is different
from the geographical North pole. This causes
a difference between the true and magnetic
North direction. The difference is called mag-
netic variation, and varies by the observation
point on the earth. This unit is programmed
with the earth's magnetic variations. However,
you may wish to further refine variation for a
particular area by entering them manually. If
you enter compensation manually, be sure to
change it when magnetic variation changes.
1. Press the MENU key.
2. Press the [0] key.
3. Press the [2] key.
4. Operate the Cursor Pad to select MAG
CALIB.
5. Operate the Cursor Pad to select AUTO
or MAN.
6. If you selected MAN in step 5, enter mag-
netic variation with the numeric keys.
7. Press the ENT key followed by the
MENU key.