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For example, if
Rotation around Y
• To choose the correct bearing, observe the
installation parameters. Set
For example, if the transducer is mounted on the starboard side of the vessel with
Rotation around Z
is mounted on the port side of the vessel with
set
to -55 degrees too.
Bearing
Note
Without external noise sources the level should not exceed 46 dB. If this level is exceeded
in any direction you must locate the noise source(s). If the noise originates on your own
vessel we strongly suggest that relevant actions are taken to reduce the noise and thus
increase the performance of the SN90 system.
A hull unit may be provided as an option. It allows you to lower and hoist the transducer.
Procedure
1
If applicable: Make sure that you have sufficient water depth below the keel before
you lower the transducer.
2
If applicable: Lower the transducer to its bottom position.
3
Select the default settings.
a
On the
Main
b
Observe the
c
Select the setting you want to use.
d
Select
Activate Selected Setting
e
Select
OK
4
At the bottom of the display presentation, select a suitable presentation mode, and
activate the Horizontal view.
5
On the
menu:
Main
a
Set
to the correct compensated value.
Tilt
b
Set the bearing to the correct compensated value.
6
Make the following preparations.
a
On the
Main
b
On the
Operation
c
On the
Active
1
Set
Pulse Type
2
Set
Frequency
3
Set
Vertical TX Sector
381294/E
is set to 75 degrees, set
to the same value as
Bearing
set to 45 degrees, set
menu, select
User Settings
list.
Factory Settings
.
to apply your changes and close the
menu: Set
to 1500 m.
Range
menu: Set
Tx Power
menu:
to CW Medium.
to the start frequency:70 kHz
to Narrow.
Tilt
Rotation around Z
Rotation around Z
to 45 degrees too. If the transducer
Bearing
Rotation around Z
.
User Settings
to Off.
Maintenance procedures
to (90-75) 15 degrees.
value. Check the
.
set to -55 degrees,
dialog box.
259
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