System Commissioning
Compass Configuration
OceanTRx™4-500 O3b System Installation Guide
4-15
These values are preconfigured and should only be changed if the
ship’s compass is using a different NMEA telegram
.
4.4.2
Compass Offset Configuration
To calibrate the compass offset (Antenna Azimuth)
1. Point the antenna to the desired satellite.
In case a satellite is not available, the
Sun Program Track
mode
can be used.
For using the Sun Program Track:
The
System Type Constellation
should be set to
GEO.
The
Program Route
configuration should be set to
Sun
.
After the offset procedure has been completed, set the Program
Route configuration back to
Satellite
. Failure to do so will cause
the Solar Outage protection to be de-activated.
2. Write down the antenna’s azimuth as it appears in the
Antenna Target
window of the
Operation Screen
. This will serve as your nominal azimuth. (See the following
figure).
Figure
4-14: Antenna Target Window
3. Using
Manual Mode
, increment or decrement the antenna's azimuth orientation until
it points to the satellite (or sun).
4. The required amount of movement depends on the accuracy of your initial estimate (a
typical estimate will fall within ±10
°
).
5. Once the satellite is acquired, set the antenna to
Step-Track Mode
.
