s80HD WorldView™ – Marine Satellite Television System
60
6. Set the
INCREMENT STEP
size.
Press the LEFT and RIGHT arrow keys until the desired character is underscored
(selected). Press the UP and DOWN arrow keys to increase and decrease the
selected character. Or press NUMBER keys to set the desired value directly.
Press the OK keys to set the
INCREMENT STEP.
Press the BACK key to save or abort and return to the main display.
7. Set SEARCH 1, 2 and 3 AZ (Azimuth) range and EL (Elevation) range.
SEARCH 1 is used for global search (without existence of heading data), while
SEARCH 2 is used for non-global search (with heading data). If the desired signal is
found, either SEARCH 1 or SEARCH 2 will automatically enter to SEARCH 3 mode.
A search pattern 1 or 2 will be initiated according to which GYRO TYPE is selected
and the existence of the gyrocompass 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 6º(±3º) in elevation. The search cycle will repeat
until the antenna receives the lock signal from the satellite receiver or the DVB
transponder of the target satellite is decoded by the antenna.
If the desired signal is found and above the predefined detect level, the ACU will
enter to Search 3.
Search 1
g
Search 3:
However, the antenna will not initiate Search 3 pattern but go
into TRACKING mode immediately if the desired signal is above the predefined
tracking threshold level.If the detected signal is below the predefined tracking
threshold level, the search 1 will repeat and start 3º away from the current position.
S E A R C H W A I T T I M E
I N C R E M E N T S T E P
0 2 0
1 . 0
S E A R C H 1 A Z
S E A R C H 1 E L
0 1 6
1 2
Содержание WorldView s80HD
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