Intellian T240CK, Installation And Operation User Manual

Page: 63 / 160

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INSTALLING THE ACU
Connecting the System without a Ship’s Gyrocompass
For a vessel where the ship’s gyrocompass is not installed or is difficult to connect,
the Intellian Gyro-Free satellite search function will be automatically enabled to
allow the antenna to lock onto the desired satellite without requiring an external
heading input.
The table below provides an example of the Gyro-Free satellite search algorithm.
The Search 1 or Search 3 satellite search pattern will be triggered according to the
existence of heading input and the setting of the heading device.
Search 1: The antenna will search for the target satellite by turning its azimuth
angle in a CCW(Counter Clockwise) direction until the antenna receives a lock signal
from the receiver or until the DVB(Digital Video Broadcasting) transponder of the
target satellite is decoded by the antenna.
Search 3: The antenna will search for the target satellite by turning its azimuth angle
directly to the position calculated using the ship’s heading input and lock onto the
satellite.
Setting of Heading Device
Existence of Heading Data No Device NMEA / NMEA 2000 Ground Test
w/ Heading Data Search 1 Search 3 Search 3
w/out Heading Data Search 1 Search 1 Search 3
Quick Setup Procedure
• Set the satellite with DVB transponder as the target satellite.
• Set “No Device” to the heading device.
• The antenna will search for the target satellite by turning its azimuth angle in CCW
direction and lock onto the satellite signal until the antenna receives a lock signal
from the receiver or the DVB transponder of the target satellite is decoded.
• Set the heading device as NMEA.
• Enter “Manual search” menu and touch “Function” key to save the current settings.
Intellian ACU will automatically calculate and save the bow offset.
• Upload the real TARGET satellite pre-configured from the library.