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OPERATING THE ACU
Search Parameters
Setup mode
Manual search menu
Antenna menu
Search param
Search 1 range
Search 3 range
SETUP MODE ?
YES NO
1. Press LEFT arrow key to move cursor to YES and press OK key to enter SETUP mode.
+ANTENNA +SATELLITE
+SYSTEM +INSTALLATION
2. Press OK key to enter ANTENNA menu.
+MANUAL SEARCH + SET POL ANGLE
+SEARCH PARAM +SET PARAMETERS
3. Press arrow keys to move cursor to SEARCH PARAM menu and press OK key to enter it.
SEARCH WAIT TIME INCREMENT STEP
030 0.50
4. Set SEARCH WAIT TIME and INCREMENT STEP.
Set the time-out for automatic initiation of a search after the signal level drops below
the predened threshold value (Range : 1 - 120 sec) and set increment step size
(Range : 0.01 – 5.00 sec)
SEARCH1 AZ SEARCH1 EL
400 06
SEARCH3 AZ SEARCH3 EL
003 04
4. Set SEARCH 1 and 3 AZ (Azimuth) range and EL (Elevation) range. SEARCH 2 is reserved
for future use.
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 / has 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 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, the antenna will not initiate Search 3 pattern but go into
TRACKING mode immediately if the desired signal is above the predened tracking threshold
level. 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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General