Furuno 1623 Manual De Usuario

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1. OPERATION 
 17 
 
Waypoint
mark
 
Waypoint mark 
 
Page 2 of system menu 
EBL REFERENCE: The EBL readout may be 
chosen from relative (relative to own ship’s 
heading) or true (referenced to the North). 
Heading data required for true bearing. 
 
Note: If no bearing data is input, course data 
from the GPS navigator is used. In this case 
ship’s speed must be more than two knots. 
 
BEARING READOUT: Course indication may 
be shown in true or magnetic (magnetic 
compass) degrees. Heading data required for 
true degrees. 
 
CURSOR POSITION:
 Chooses the 
information to show for the cursor position: 
latitude and longitude or range and bearing 
from own ship. Latitude and longitude 
position requires a navigator. 
 
TRIP SOURCE:
 Chooses the criteria for 
calculating distance run: latitude and 
longitude or speed. Requires navigator or 
speed log. 
 
WIND SPD/DIR:
 True is the speed and 
direction (in relation to ship’s bow) of the wind 
felt or measured when stationary. Apparent 
is the direction (in relation to ship’s bow) and 
speed of the wind as it appears to those on 
board, relative to the speed and direction of 
the boat; combination of the true wind and the 
wind caused by the boat’s movement. 
Requires wind data. 
 
SHIFT MODE: Own ship position, or sweep 
origin, can be displaced manually or 
automatically. For automatic displacement, 
the amount of shift is calculated with ship 
speed, and the amount is limited to 60% of 
the range in use. For example, if the “Auto 
Shift Speed” setting is 15 knots and the ship 
is running at 10 knots, the amount of shift will   
be about 40%. The formula for determining 
shift amount is as below. Requires speed 
data.  
Ship’s speed
Shift speed setting 
X 0.6 = Amount of shift(%)
 
 
AUTO SHIFT SPEED:
 Sets the automatic 
shift maximum speed. The setting range is 
1-99. 
 
TX SECTOR BLANK:
 In some installations it 
may be unavoidable to locate the antenna 
where an object (mast, etc.) will prevent 
transmission within its breadth. You should 
disable transmission within this area by 
turning on this feature and setting the area 
with BLANKING START and BLANKING 
AREA below. 
 
BLANKING START: Sets the starting point 
(000-359°) of the TX sector blanking area. 
 
BLANKING AREA: Sets the end point of the 
TX sector blanking area (000-135°). 
 
LOCAL TIME SETUP: Enter time difference 
between local time and UTC time to use local 
time. Press 
 or 
 to set value. 
 
ANTENNA SPEED: Chooses antenna 
rotation speed from 24 rpm and AUTO. Use 
AUTO to automatically change the antenna 
rotation speed (24-41 rpm) according to pulse 
length*. Choose “24 rpm” to rotate the 
antenna at 24 rpm regardless of pulse length. 
 
* =  Short pulse at high rotation speed; long   
pulse at slow rotation speed. 
 
Page 3 of system menu 
RANGE: Chooses the ranges to use.