Intellian t80W, Installation And Operation User Manual

Page: 40 / 143

t80W/t80Q – Marine Satellite TV Antenna System
40
Connecting the System without a Ship’s Gyrocompass
For a vessel where the ship’s gyrocompass is not installed or is difficult to be
connected, 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: This mode is entered from Search 1 or Search 3. The antenna will search
for the target satellite by turning its azimuth angle in CW(Clockwise) and
CCW(Counter Clockwise) direction in a turn rotation until the antenna
receives the lock signal from the receiver or 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.
Quick Setup Procedure
• Set the satellite with DVB transponder as the target satellite.
• Set “None” 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.
Setting of Heading Device
Existence of Heading Data No Device NMEA / NMEA 2000 Ground Test
With Heading Data Search 1 Search 3 Search 3
Without Heading Data Search 1 Search 1 Search 3