-3°
-2°
-1°
0°
1°
2°
3°
1 5 10 15 20 3025
Search 1 (Gyro Free) Search Pattern
Target Satellite EL Position
Revolution (AZ direction)
REMARKS:
A search pattern 1 or 3 will be initiated according to which GYRO TYPE is selected
and the existence of the gyro input.
Search 1: a search pattern 1 will automatically be initiated when the ship’s heading
input does not exist / is failed. The antenna will go to the relative azimuth position 0º
at the calculated elevation and search in the azimuth CCW direction and search up
+0.5º & down -0.5º with a total of 6º(±3º) in elevation. The search cycle will repeat
until the antenna receives the lock signal from the Modem or the DVB transponder
of the target satellite is decoded by the antenna. If the desired signal is found and
above the predened detect level, the ACU will enter to Search 3. However, if the
desired signal is above the predened tracking threshold level, the antenna will
not initiate a Search 3 pattern but will go into TRACKING menu immediately. If the
detected signal is below the predened tracking threshold level, the search 1 will
repeat and start 3º away from the current position.
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