2. INITIAL SETUP
11
How to align the antenna heading
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 line (zero degrees).
You may observe a minor bearing error on the display. This is due to the difficulty in
orienting the antenna unit accurately. The following adjustment will compensate for
the error.
1. Select a range between 0.125 and 0.25 NM and set the mode to “head up”.
2. Turn the vessel’s bow toward a target.
3. Press the [MENU] key to open the menu.
4. While pressing and holding down the [ESC/HL OFF] key, press the [MENU] key
five times.
5. Open the [Installation Setup] menu.
6. Select [Antenna Heading Align].
7. Key in an offset value so that the target is at the very top of the screen (setting
range: 0.0° to 359°) then press the [ENT] key. Enter a plus value if the deviation
is clockwise; minus value if the deviation is counterclockwise.
8. Confirm that the target echo is displayed at correct bearing on the screen.
Correct
position
of target
Apparent
position
of target
Target
Picture appears deviated clockwise
(enter plus offset value)
Picture appears deviated counterclockwise
(enter minus offset value)
Antenna installation error
(deviated to starboard)
Antenna installation error
(deviated to port)
Target
Correct
position
of target
Apparent
position
of target
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