Kongsberg Simrad SN90 Reference Manual page 171

Select the middle position carefully. The position is normally selected to place the
transducer just under the keel, but low enough to prevent echoes from the trunk. Once
the position is selected, make sure that the system protection functionality does not
inhibit transmission.
Procedure
1 Make sure that you have sufficient water depth
below the keel before you lower the transducer.
2 Select
Hull Unit
dialog box.
Unit Control
3 Use the spin box to define the middle position.
4 Open the
Setup
5 On the menu, select
Setup
Observe that the
of pages selected from the menu on the left side.
a On the left side of the
the page.
b Make sure that the upper limit of the
exceed the middle position.
c Adjust the setting if it is necessary.
d At the bottom of the page, select
e Close the
Installation
6 Lower the transducer to its middle position.
7 Start normal operation.
8 Make sure that the SN90 system is fully operational.
Related topics
Operating procedures, page 82
Defining settings related to user preferences and individual customizing, page 156
Hull Unit, page 304
Hull Unit Control dialog box, page 506
381294/E
on the top bar to open the
menu.
Installation
dialog box opens. This dialog box contains a number
Installation
Installation
dialog box.
Hull
.
dialog box, select
System Protection
Tx Inhibit Hull Unit Position
to save your settings.
Apply
Operating procedures
to open
does not
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