COBHAM Sea Tel 9711-56 IMA C Band, Installation Manual

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Sea Tel 9711-56 IMA Setup – Azimuth Trim
9-1
EAR Controlled - ECCN EAR99
9. Setup – Azimuth Trim
Beginning in IMA software version 1.05, calibrating the targeting of your antenna is much easier. This is accomplished
improving Sky Search and changing the way that Azimuth Trim works so that the need for Home Flag Offset is
eliminated. Azimuth Trim now corrects the relative position of the antenna in all configurations which have
valid/accurate gyrocompass input.
If the antenna has been purposely mounted with the bow mark of the ADE not in alignment with the bow of the ship,
such as for safe entry into the radome hatch, note and enter the approximate offset into the AZ TRIM parameter
before searching for the satellite for the first time. EXAMPLE: The antenna is being mounted on the port side of the
ship where it is unsafe for the hatch to be oriented directly in line with the stern. The installer rotates the ADE so that
the bow mark is facing directly to the port and bolts that ADE into place. When first powering the system up, he will
enter +90 in the AZ TRIM parameter to indicate that the ADE was rotated CW 90 degrees during the installation. This
will make initial satellite acquisition faster (even though sky search would still find the satellite). This entry is only
needed on a new installation that AUTO TRIM has not been run on yet. If the ADE had been similarly installed on the
starboard side -90 degrees would have been entered to indicate that the ADE was rotated CCW 90 degrees during the
installation.
1. Access the Satellite Configuration screen.
2. Select Sky Search as your desired type of search
pattern to use for this initial satellite acquisition
on a newly installed antenna system.