Furuno FAR-1416, Operator'S Manual

Page: 35 / 226

1. OPERATIONAL OVERVIEW
1-21
4. Select the appropriate source for automatic speed input, then press the left but-
ton .
*: Set and drift may be required to display [LOG (BT)] correctly in deep waters. To
change set and drift do the following:
5. Close the menu.
Notes on speed input
It should be noted that in determining a target's aspect by radar, the calculation of its
true track is dependent on the choice and accuracy of the own ship's course and
speed input. A ground-stabilized target plot may accurately calculate the ground track
of the target, but the target's heading may be significantly different from its track when
experiencing set, drift or leeway. Similarly, a sea stabilized target plot may be inaccu-
rate when own ship and the target, are experiencing different rates of set, drift or lee-
way.
1.16 How to Set the Navigational Data Box
You can select the information box for own ship. Three information boxes are pre-
pared at top on the screen. The boxes show the following data: heading, own ship’s
speed, own ship’s bearing, date and own ship’s position, water temperature, water
depth, wind direction/speed and current direction/speed.
Presetting of navigation data
• Box 1: Own ship’s speed.
• Box 2: Own ship’s heading.
• Box 3: Date and own ship’s position.
Selection Explanation Stabilization Mode
[LOG (BT)]* Log, speed over ground (SOG) Ground stabilization
[COG (WT)] Log, Speed thru water (STW) Sea stabilization
[GPS] Speed input by GPS navigator Ground stabilization
1) From the [SHIP SPEED SETTING], select [SET DRIFT], then press the left but-
ton .
2) Select [ON], then press the left button .
3) Select the set angle, then press the left button .
4) Select the drift speed, then press the left button .
• IMO Resolution A.823(19) for TT recommends that a speed log to be interfaced with
a TT should be capable of providing through-the-water speed (forward speed).
• Be sure not to select a [LOG] option when a speed log is not connected. If the log
signal is not provided, the ship speed readout at the top of the screen will be blank.
In the event of a log error, enter speed manually.
• The [SPD] is shown as "*.* kn" and the label "LOG(BT)" or "LOG(WT)" appears and
the alert buzzer sounds if no log signal is present for 30 s.
• A single-axis water log cannot measure speed when the wind is coming from the lee-
way direction.
SPEED
3.4
kn
2017/01/01 01:30
34°15.0000N
135°15.0000E
GAI
SEA
RAI
NM
HEADING
250.0
°
T
BOX 1 BOX 2 BOX 3