Settings
98-175666-D Chapter 3: Setup of the antenna 3-15
3.2.4 Navigation
You must set the heading and position before you start the calibration procedure.
1. Click Settings > Navigation.
2. Select a heading mode.
Note
If you change the heading settings from external to fixed or vice versa you
must make a new azimuth calibration.
Figure 3-11: Settings, Navigation (Heading and Position), (example)
Heading
mode
Description
External Heading input from the vessel’s gyro compass (default).
If there is no heading input due to failure, alarms are raised and the
antenna continues in gyro-free mode. When heading input is
available again and a new acquisition is made, alarms are cleared.
Fixed Use this setting for an azimuth and cable calibration if there is no
input from the vessel’s gyro compass and for permanent
installations like remote areas or oil rigs, or during training and test.
For Fixed, enter the vessel heading in degrees. If the heading is not
known, set it to 0.
Important: Fixed heading is not allowed for sailing vessels!
None I
mportant: You must make an azimuth and cable calibration with
Fixed before you can use this setting. This is required for using
blocking zones. After a successful azimuth and cable calibration
you must change the heading input setting from Fixed to None.
Select this setting after a successful azimuth calibration with Fixed
heading if the system does not have input from the vessel’s gyro
compass.
Table 3-11: Heading modes
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