Confirming Present Settings For Each Compass; True Bearing; Latitude - Simrad GC80 Dual MK2 User Manual

Simrad GC80/85 Dual MK2 Gyro Compass
Display state
DISP
press on DISP button
5 th
DISP
press on DISP button
6
th
DISP
7 press on DISP button
th
Normal operation
4.5

Confirming present settings for each compass

GYRO
988-12720-002
Display
GYRO
EXT
or
GYRO
EXT
After the GC80/85 is configured according to the System start-up and
software configuration, described on page 62 onwards, it should not be
necessary to adjust any settings when operating the Gyro compass.
However, if an error occurs in any of the input sources, it may be necessary
to switch to a different input source.

True bearing

Make sure that the Gyro compass is selected as active compass. Refer
Selecting active compass, page 24.
Confirm that the Gyro compass' displayed true bearing is according to a
known target or astronomical observation.
If there is any difference, adjust the bearing according to Adjusting True
heading, page 66.

Latitude

Press the DISP button until the vessel's latitude is displayed.
The displayed latitude value is calculated based on the vessel's true bearing
and the vessel's actual speed. Refer Setting the Latitude input source and
Setting the Speed input source page 64 onwards.
Description
- Rate of turn in °/min
- Rate of turn indication
- Error codes (up to 4)
- Error indication
- True output bearing
- Active compass
20