How To Set Up The Sounder - Furuno TZT12F Installation Manual

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).
In practice, you will probably observe some small bearing error on the display because
of the difficulty in achieving accurate initial positioning of the antenna unit. The follow-
ing adjustment will compensate for the error.
Front of antenna
Target
a
Antenna mounted error
to port
(HDG SW advanced)
1. Set your radar with 0.125 and 0.25 nm range and the head up mode.
You can select a range by using the pinch action. The range appears at the bottom
right of the screen. Range may also be selected using the slide bar displayed on
the right-hand side of the radar display area. Drag the bar up to zoom in, or down
to zoom out.
2. Turn the vessel's bow toward a target.
3. Tap the [Home] icon to show the home screen and display mode settings.
4. Tap [Radar] to show the [Radar] menu.
5. Tap [Antenna Heading Align].
6. Key in an offset value (setting range: +179.9° to -180°) that puts the target at the
very top of the screen, then tap the
+: rotate echo in clockwise direction
-: rotate echo in counterclockwise direction
7. Confirm that the target echo is displayed at correct bearing on the screen.
3.5

How to Set Up the Sounder

If you have an internal sounder or BBDS1 or DFF series, set up the sounder as shown
in this section.
Note 1: Some menu items are restricted to certain external depth sounders and that
some menu items may not be available when using the internal depth sounder.
Note 2: For DFF-3D setup instructions, see the DFF-3D operator's manual.
1. Tap the [Home] icon to show the home screen and display mode settings.
2. Tap [Settings].
Correct bearing
a
(relative to heading)
350 000 010
340 020
330 030
320
040
310 050
300 060
290 070
280 080
090
270
Apparent Apparent
260 100
250 position of position of
110
240
120
target target
230
130
220 140
210 150
200 160
190 170
180
Picture appears
deviated clockwise.
Zoom in Zoom in
3. HOW TO SET UP THE EQUIPMENT
Apparent position
Front of antenna
b
Target
320
310
300
290
280
270
260
250
240
230
220
Antenna mounted error
Picture appears
to starboard
deviated counterclockwise.
(HDG SW delayed)
Zoom out Zoom out
icon.
b
of target
000
350 010
340 020
330 030
040
050
060
070
080
090
Correct bearing Correct bearing
100
110
(relative to (relative to
120
heading) heading)
130
140
210
150
200
160
190 170
180
Range
Radar indications
3-15