Entering Initial Settings; Relative Bearing Alignment - Furuno FMD-811 Operator's Manual

4.7 Entering Initial Settings

1) At the Installation Setup 1 menu, press
the cursor pad to select Key Beep. (Key
Beep turns on or off the buzzer which
sounds when a key is pressed.)
2) Press the cursor pad to select OFF or
ON.
3) Press the [ENT] key.
4) Select Hdg Sensor.
5) Select type of heading sensor connected
to the unit; MAGnetic compass or
GYRO compass.
6) Press the [ENT] key.
7) Select Ant. Height.
8) Select antenna height: LOW; <3 m,
MID; 3-6 m and HIGH; >6 m.
9) Press the [ENT] key.
Leave the menu open to complete the next
several adjustments.

4.8 Relative Bearing Alignment

You have mounted the antenna unit facing
straight ahead in the direction of the bow.
Therefore, a small but conspicuous target
dead ahead visually should appear on the
heading mark (zero degrees).
In practice, you will probably observe some
small error on the display because of the dif-
ficulty in achieving accurate initial position-
ing of the antenna unit. The following
adjustment will compensate for this error.
1) Identify a suitable target (for example,
ship or buoy) at a range between 1/8 to
1/4 miles, and orient the ship's heading
to the target dead ahead. To minimize er-
ror, keep echoes in the outer half of the
picture by changing the range.
2) Display the Installation Setup 2 menu.
INSTALLATION SETUP 2
Select item and option
by trackball.
1. Align Heading
2. Adjust Sweep Timing
3. On Hours 000019.8 H
. . . . . . . . . . . . . . . . .
Press HM-OFF to temporarily
hide menu.
<Press MENU for main menu.>
Figure 4-8 Installation setup 2 menu
3) Select Align Heading and press the
[ENT] key.
4) Press the cursor pad to bisect the target
selected at step 2 with the EBL.
5) Press the [ENT] key.
6) As a final test, move the boat towards a
small buoy and confirm that the buoy
shows up dead ahead on the radar when
it is visually dead ahead.
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