Furuno SATELLITE COMPASS SC-33 Operator's Manual page 25

3. ADJUSTMENTS
Menu item
Air Temperature Offset the air temperature value.
Note: The displayed temperature appears lower than the actual temperature
immediately after the power is turned on. It takes approximately one hour for
the equipment to display the correct temperature in a stable manner.
Smoothing
ROT Set the time delay (smoothing) for ROT data output. Normally, keep the default
setting. If you want to improve the response performance of ROT data, enter
the lower value than the default setting (2.0 sec).
DR Time
DR Time When the SC-33 cannot receive the signal from the satellite, the SC-33 keeps
outputting the heading data to use dead reckoning for the time set here. If the
signal from the satellite cannot be retrieved with in the time set here, the SC-
33 stops outputting the heading data.
Ship Size, ANT Position
Enter the appropriate value according to the ship's size, to improve the accuracy of the 3-axis
speed. The reference position for mounting position and calculating position of the 3-axis speed are
shown in the following figure:
Z ( + )
Reference
position
( 0.0 )
Ship's Width Set the ship's width, calculated from the port-side to starboard-side of the wid-
est section of the vessel.
Ship's Length Set the ship's length, calculated to the bow-tip to the stern, along the center of
the vessel.
Ship's Height Set the ship's height, calculated to the bottom of the keel to thee top of the
mast.
ANT Position X0 Set the port-starboard (Lateral) position of the SC-33. Enter negative value for
port-side, positive value for starboard-side. The center of the vessel is "0".
ANT Position Y0 Set the bow-stern (Longitudinal) position of the SC-33. Set the distance from
the bow to the stern with the bow as 0 m.
ANT Position Z0 Set height of the SC-33, from the bottom of the ship.
CALN-SPD-POSN Set the bow-stern position for calculating the 3-axis speed. Ship's speed can
Y1 (Bow) be measured at two locations in addition to the antenna position. Enter the
backward distance from the reference position (Fwd Center of the bow) to the
CALN-SPD-POSN
position where you want to measure the ship's speed. Normally, enter the bow
Y2 (Stern)
position (Y1) and stern position (Y2).
Note: In the default setting, Y1 and Y2 are entered as follows:
• Y1: 0 m (bow position)
• Y2: 20 m (20 m backward from bow position)
Draft position
Ship's hull line
Ship's length
Description
X (-)
Y ( + )
Y ( + )
Ship's width
18
Reference position
( 0, 0 )
X ( + )