Calibration
99-145912-A Chapter 6: Configuration 6-9
Acquisition times
6.2.3 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.
You can make an azimuth calibration in the following ways:
• Automatic azimuth calibration
• User-controlled azimuth calibration
• User-controlled azimuth calibration with a service profile
Automatic azimuth calibration with an active satellite profile:
If there is no line of sight to an azimuth calibration satellite or GX service
satellite from the place of installation you can enable automatic azimuth
calibration. When the vessel leaves the harbour and gets line of sight to
the GX 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 Azimuth calibration (active
satellite profile) on the page SERVICE > Calibration.
1. Click SERVICE > Calibration.
2. Select Enable in the section Azimuth calibration (active satellite
profile). To be able to use this feature you must have made a valid
satellite profile and activate it.
3. Click Apply.
4. Switch on the GMU.
Activity
Inclination
0° 1° 2° 3° 4°
Initial search 10 s 10 s 10 s 10 s 10 s
Scan box pattern5 s 10 s15 s25 s30 s
Validate result
(10 s per result)
10 - 30 s 10 - 30 s 10 - 30 s 10 - 30 s 10 - 30 s
Max. total time 25 - 45 s 30 - 50 s 35 - 55 s 45 - 65 s 50 - 70 s
Table 6-3: Acquisition time
To Next Page
Loading...
Need help?
General
