Intellian v80G, Инструкция по установке и эксплуатации

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v80G – Marine Satellite Communication System
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-3°
-2°
-1°
0°
1°
2°
3°
1 5 10 15 20 30 25
Search 1 (Gyro Free) Search Pattern
Search 3 pattern
Search 3: a search pattern 3 will automatically be initiated when AGC / SIG falls
below the current tracking level threshold value. If the desired signal is found and
above the predefined tracking level, the ACU will terminate Search 3 and go into
TRACKING mode. A search pattern will automatically be initiated when AGC / SIG
falls below the current threshold setting (indicates that satellite signal has been
lost). Search is conducted in a two-axis pattern consisting of alternate movements
in azimuth (AZ) and elevation (EL) as forming expanding square indicated as below
diagram.
Target Satellite EL Position
Revolution (AZ direction)
Search 1 antenna motion
Elevation
(EL) Range
0.5˚
Azimuth (AZ) Range
Target EL Angle 0°
Turn 1
Target EL Angle 0°
Turn 3
Target EL Angle + 0.5°
Turn 2
Target EL Angle - 0.5°
Turn 4