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6012-71 Installation Manual
4.
Click Save, at the bottom left area of the
screen.
5.2.
If there is NO Ships Gyro Compass
Without heading input to the system the MXP will NOT be able to easily target, or stay stabilized ON, a "true" azimuth
pointing angle. This will make satellite acquisition much more difficult and the true azimuth value that any given
satellite should be at will not be displayed correctly.
This mode of operation is NOT recommended for ships or any other vessel that turns in the water. A better solution
would be to provide a Satellite Compass (multiple GPS Antenna device) to provide true heading input to the ACU.
These devices are readily available and are much less expensive than a Gyro Compass.
If there is NO Gyro Compass (ie on a large stationary rig which is anchored to the ocean floor) set the GYRO TYPE
parameter to "No Gyro" or to "Fixed".
Fixed mode is used when you do not have a gyro compass, but the ship/vessel/rig is stationary at a fixed
heading that you can manually enter for satellite targeting. This allows you to use a standard (small) search
pattern and acquire the satellite relatively quickly.
No gyro mode is used when you do not have a gyro compass, the ship does turn and you will use "Sky
Search" to initially acquire the satellite. The Sky Search drives the antenna to the calculated elevation angle
and then drives azimuth CW 360 degrees, steps elevation up and then drives azimuth CCW 360 degrees and
continues to alternately steps elevation up/down and drives azimuth alternately CW/CCW 360 degrees.
Because of this large search area, acquiring the satellite will take MUCH longer than if you have valid heading
input.
1.
Go to the Reflector Configuration page
2.
To change: Set the Scan Rate parameter to 5
deg/sec.
5-2
Setup – Ship's Gyro Compass
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