Furuno DRS12AX X-Class, Installation Manual

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2. INITIAL SETUP
17
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 radar accurately. The following adjustment will compensate for the error.
[Antenna Longitudinal Po-
sition] Referring to the figure on the right, enter
the radar antenna positioning bow-stern
(Longitudinal) and port-starboard (Lateral)
position from the origin.
[Antenna Lateral Position (-
Port)]
[Auto Tuning] Enable/disable auto tuning for the connected radar.
[Tuning Source] For dual-range display, select the range to use as the
manual tuning source.
[Manual Tuning] Manually tune the radar. Not available when [Auto Tuning]
is enabled.
[Radar Monitoring] Display various information regarding the connected ra-
dar.
[Radar Optimization] Automatically adjust magnetron output and tuning for the
connected radar.
Note: Be sure to perform [Radar Optimization] after re-
placing the magnetron.
[ARPA Advanced Settings] Do not change these settings.
Menu item Description
Origin
000
010
020
030
040
050
060
070
080
090
100
110
120
130
140
150
160
170 180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
000
010
020
030
040
050
060
070
080
090
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
Correct bearing
(relative to heading)
a
Apparent
position
of target
a
Target
Antenna oriented to port Picture appears
deviated clockwise.
Apparent position
of target
b Target
b
Correct
bearing
(relative to
heading)
Antenna oriented to starboard
Picture appears
deviated counterclockwise.