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