Hardware
Copyright © 2015 Coda Octopus Products Ltd
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F180R MOTION Sensor User and Reference Guide
NOTE: For simplicity, the standard recommended configurations are either:
(a) with the antenna mounting bar level and at right–angles to the ship's
heading, and the primary antenna located on the port side of the vessel with
the secondary antenna mounted on the starboard side; or
(b) with the antenna mounting bar level and parallel to the ship's heading,
with the primary antenna located on the forward end of the mounting bar and
the secondary antenna on the aft end of the bar.
However, you may mount the antennas at other orientations if you need to. You
must set the antenna orientation chosen in Secondary Antenna Configuration of
the Configuration Wizard.
4. Fit the primary GPS antenna to the mounting bar at its chosen location by passing the
central support stud through the hole and fitting the securing washer and nut.
5. Run one of the supplied cables from the F180R System Box to the primary GPS antenna
location. Use clips or adhesive tape to secure the cable at regular spacings. Do not
subject the cable to sharp bends, stresses or points where extended vibration might
cause wear to the cable.
6. Connect the cable to the primary GPS antenna and apply waterproof sealing tape to seal
the connection against water ingress. Do not over–tighten the connector.
7. The primary antenna cable in F180R System kit is normally marked with a red sleeve.
Alternatively attach a label to identify this as the primary antenna cable.
8. Fit the secondary GPS antenna to the mounting bar, following the same procedure that
you used for the primary antenna.
9. Before you tighten the fixings on the secondary antenna, turn it so that the connector
port faces in approximately the same direction as that on the primary GPS. This gives
both antennas the same orientation with respect to the vessel.
NOTE: The phase centres of the GPS antennas might move by several millimetres
as the vessel turns or as satellites move across the sky. When both antennas have
the same orientation, their phase centres will move approximately together. This
will help to maintain optimal measurement accuracy under all conditions.
10.Run the secondary antenna cable from the F180R System Box to the secondary GPS
antenna location.
11.Connect the second supplied cable to the secondary GPS antenna and seal it against
water ingress, following the same precautions and instructions used for the primary
antenna cable.
12.Attach a label at the bottom end to identify this as the secondary antenna cable.
13.Connect both antenna cables to the F180R System Box through their appropriate
connection ports. Upper BNC port is primary antenna connection. Lower BNC port is
secondary antenna connection.
14.Connect the user interface cable to the 22–way port on the F180R System Box.
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