Furuno 841 MARK-2 ユーザーズマニュアル
17
1.5
NM
0.5
HDG 326.8°
66° 04. 00N
166° 04. 00E
VRM EBL + CURSOR
0.675
NM
240.1°
R
0.646
NM
308.7°
R
DEPTH XTE SPD
350.0m 0.05NML 30.0KT
WAYPOINT POSI L/L
12.0
NM
45.0°
M
AUTO
Figure 2-18 Sample nav data display
Setting up the nav data display
1) Press the [MENU] key.
2) Select Nav Data and press the [ENT] key.
● NAV DATA MENU ●
Select item and option
by
by
▲▼
keys.
1. Navigator
2. Nav Data Disp
3. Pos Disp Mode
4. Depth Unit
5. Temp Unit
6. STBY Display
2. Nav Data Disp
3. Pos Disp Mode
4. Depth Unit
5. Temp Unit
6. STBY Display
. . . . . . . . . . . . . . . . .
Press HM-OFF to temporarily
hide menu.
hide menu.
<Press MENU for main menu.>
ALL GPS LC
OFF ON
L/L TD
M FA FT
°C °F
NORM NAV
OFF ON
L/L TD
M FA FT
°C °F
NORM NAV
Figure 2-19 Nav data menu
3) Select Navigator; GPS, Loran C or ALL
(Select all if several navigators are con-
nected to the radar. In this case, position
data is selected in order of GPS, Loran C
and other.)
nected to the radar. In this case, position
data is selected in order of GPS, Loran C
and other.)
4) Select Nav Data Disp to OFF or ON.
5) Select Pos Disp Mode to L/L (latitude and
longitude or TD (Loran C).
6) Select unit of depth measurement to
meters, fathoms, or feet.
7) Select unit of measurement for water tem-
perature to Centigrade or Fahrenheit.
8) Select whether to display nav data or "ST-
BY". "NORM" for stand-by; NAv for
navigation data.
navigation data.
9) Press the [ENT] key followed by the
[MENU] key.
2.23 Echo Stretch
(magnifying long range
echoes)
(magnifying long range
echoes)
Normally, the reflected echoes from long
range targets appear on the display as weaker
and smaller blips even though they are com-
pensated by the radar’s internal circuitry. To
stretch long range echoes, in the range di-
rection, turn on the echo stretch function.
range targets appear on the display as weaker
and smaller blips even though they are com-
pensated by the radar’s internal circuitry. To
stretch long range echoes, in the range di-
rection, turn on the echo stretch function.
Figure 2-20 Echo stretch
Turning echo stretch on or off
1) Press the [MENU] key.
2) Select P/L & Int/Noise Rej & ES and
press the [ENT] key.
3) Select Echo Stretch.
Echo stretch OFF Echo stretch ON
Distant
echo
echo