Calibration
5-7
5.2.2 Azimuth calibration
Azimuth calibration is done toward a satellite of a known position. After finding the
satellite, the system can calculate the azimuth offset of the ADU installation. The satellite
and transponder properties for the calibration can be selected from a list of service profiles
or supplied manually.
There are three ways to make an azimuth calibration:
• Automatic azimuth calibration with an active satellite profile
• Azimuth calibration (user controlled)
• Azimuth calibration with a service profile
Automatic azimuth calibration with an active satellite profile
You can enable automatic azimuth calibration, even if there is no line of sight to an
azimuth calibration satellite from the place of installation. To be able to use this feature
you must have made a valid satellite profile and have activated it. When the vessel leaves
the harbour and gets line of sight to the satellite, the system automatically finds and tracks
the satellite and makes the azimuth calibration. After a successful azimuth calibration the
ACU will automatically disable the setting Azimuth calibration (active satellite profile)
on the page SERVICE > Calibration.
To enable automatic azimuth calibration, do as follows:
1. Create a modem profile, see Modem profiles on page 5-22.
2. Create a satellite profile, see Satellite profiles on page 5-24
3. Click SETTINGS and Activate the satellite profile.
4. Click SERVICE > Calibration.
Figure 5-7: Web interface: SERVICE, Calibration
If the target satellite is in inclined orbit, the elevation range is extended
accordingly.
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General