Menu Operation - Furuno 821 Operator's Manual

To erase the EBL, press and hold down the
[EBL] key for about three seconds.
1.5
NM
0.5
Target
EBL
VRM EBL
0.675 300.1°
NM
EBL
bearing
Figure 2-9 Measuring bearing by the EBL
Tips for measuring the bearing
• Bearing measurements of smaller targets
are more accurate; the center of larger tar-
get echoes is not as easily identified.
• Bearings of stationary or slower moving
targets are more accurate than bearings
of faster moving targets.
• To minimize bearing errors keep echoes
in the outer half of the picture by chang-
ing the range scale; angular difference be-
comes difficult to resolve as a target
approaches the center of the display.
Target on collision course with your
vessel?
You can determine if a target might be
on a collision course with your vessel by
placing the EBL on the target. If it tracks
along the EBL as it approaches the
screen center it may be on a collision
course with your vessel.
+ CURSOR
0.675 300.1°
R NM R

2.12 Menu Operation

The menu, consisting of 6 sub menus, mostly
contains less-often used functions which
once preset do not require regular adjust-
ment. To open or close the menu, press the
[MENU] key. You can select items on the
menu with the cursor pad.
Basic menu operation
1) Press the [MENU] key to open the menu.
The main menu appears.
MAIN MENU
Select item by keys
and press ENT key.
1. Backlight/Brilliance
2. P/L, IR, NR & Radar Mode
3. Nav Data
4. Mode & Function
5. Tuning AUTO
6. Self Check
7. Installation Setup 1
. . . . . . . . . . . . . . . . .
Press HM-OFF to temporarily
hide menu.
<Press MENU key to escape.>
Figure 2-10 Main menu
2) Press the cursor pad to select menu and
press the [ENT] key.
3) Press the cursor pad to select menu item.
4) Press the cursor pad to select option.
5) Press the [ENT] key to register selection.
6) Press the [MENU] key to close the menu.
Menu description
See the table on the next page.
MANUAL
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