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The Marine Cutter Suction Dredge system uses Trimble Zephyr 3 rugged GNSS antennas. The GNSS antennas are designed for applications in high shock and vibration environments like machine-control; up to 75 g shock and 20.4 g RMS. The Zephyr 3 rugged GNSS antenna is available in two versions; with 5/8” mast mounting and with 3” mast clamp.
The antennas should be mounted on a high point where visibility to the satellites are not obstructed by other objects. Mounting the antennas at the same height can help to minimize errors. The images below show some examples of antenna mount locations.
Align the antennas parallel or perpendicular to the center line of the vessel.
If parallel with the prime antenna toward the bow, heading correction does not need adjusting in the TMC software.
If perpendicular with the prime antenna facing the starboard side, the heading correction must be adjusted by 90° in the TMC software.
The GNSS antennas can be fixed onto a ⅝ inch thread. Place the thread parallel or perpendicular to the center line of the vessel.
Route the antenna cables from the Zephyr 3 rugged antennas to the MPS566 GNSS receiver ensuring that the cable is suitably tied and protected.
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