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Automatic speed input
1. Press the RADAR MENU key on the
plotting keypad to show the FUNC-
TIONS menu.
Hit [RADAR MENU].
* R-type only
1 PULSE WIDTH
2 ECHO STRETCH
3 ECHO AVERAGE
4 PANEL DIMMER
5 ECHO COLOR
6 SHIP'S SPEED
7 INDEX LINES
8 SET/DRIFT
9 BRILLIANCE
0 [SYSTEM SETTING 1]
1/2
OFF/1/2
OFF/1/2/3
OFF/DIM/M/BRT
YEL/GRN/COLOR*
LOG/NAV*/MAN
NO.2 VRM/MAN
OFF/MAN
SET 000.0
DRIFT 00.0 KT
[FUNCTIONS 1]
2. Press the [6] key to select menu item 6
SHIP'S SPEED.
3. Press the [6] key to select (or highlight)
LOG option.
4. Press the ENTER key to confirm your
selection followed by the RADAR
MENU key to close the FUNCTIONS
menu. The ship's speed readout at the
screen top shows own ship's speed fed
from the speed log preceded by the
label "LOG."
Notes:
1) IMO Resolution A.823(19) for ARPA
recommends that a speed log to be in-
terfaced with an ARPA should be ca-
pable of providing through-the-water
speed data.
2) Be sure not to select LOG when a
speed log is not connected. If the log
signal is not provided, the ship's speed
readout at the screen top will be blank.
Manual speed input
If the radar is not interfaced with a speed
log, or the speed log does not feed cor-
rect speed enter the ship's speed as fol-
lows:
1. Press the RADAR MENU key on plot-
ting keypad to show the FUNCTIONS
menu.
2. Press the [6] key to select menu 6
SHIP'S SPEED.
3. Press the [6] key to select (or highlight)
MAN option.
4. Press the ENTER key to confirm se-
lection. At this point, "MAN = XX. KT"
appears at the bottom of FUNCTIONS
menu.
5. Enter the ship speed by hitting corre-
sponding numeric keys followed by the
ENTER without omitting leading zeros,
if any. A example, if the ship speed is 8
knots, [0] [8] [ENTER].
6. Press the RADAR MENU key to close
FUNCTIONS menu. The ship speed
read at the screen top shows own ship
speed entered preceded by the label
"MAN."
1.25 Target Trails (Echo Trails)
Echo trails are simulated afterglow of tar-
get echoes that represent their move-
ments relative to own ship or true
movements with respect to land in a single
tone or gradual shading depending on the
settings on the RADAR 1 menu.
True or relative trails
You may display echo trails in true or rela-
tive motion. Relative trails show relative
movements between targets and own
ship. True motion trails require a gyrocom-
pass signal and own ship speed input to
cancel out own ship's movement and
present true target movements in accor-
dance with their over-the-ground speeds
and courses. Refer to the automatic and
manual speed input procedures for en-
tering own ship's speed information.