Entering Own Ship's Speed; Automatic Speed Input By Log Or Gps Navigator - Furuno FAR-2807(-D) series Operator's Manual

1. RADAR OPERATION
1.13

Entering Own Ship's Speed

The TT and azimuth stabilized presentation modes require own ship speed input
and compass signal. The speed can be entered from a log (STW) or GPS (SOG)
or manually on the menu. Note that FURUNO GPS Navigator GP-90 provides
COG and SOG.
1.13.1

Automatic speed input by log or GPS navigator

1. Right-click the SPD box at the top right corner of the screen.
2. Select 1 SHIP SPEED.
3. Select the appropriate source for automatic speed input then push the left
button.
LOG (BT):
LOG (WT): Log, speed thru water (STW)
GPS:
MANUAL:
REF:
4. Push the right button to close the menu.
Notes on speed input
• 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" (in red) appears and the
alarm buzzer sounds if no log signal is present for 30 s.
• With the serial speed inputs and SOG selection, if the type of data is changed
from SOG to STW the label "LOG" (in red) appears and the alarm buzzer
sounds.
1-22
[SPEED MENU]
1 SHIP SPEED
LOG(BT)/LOG(WT)/
GPS/MANUAL/REF
2 MANUAL SPEED
0.0kn
3 SET DRIFT
OFF/ON
SPEED menu
Log, speed over ground (SOG). Note that a log cannot
produce BT (Bottom Tracking) speed in deep waters without
set and drift entry.
Speed input by GPS navigator
Manually input speed
Echo-referenced speed input