Kongsberg Simrad MF90, Installation Manual

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6 Make sure that you have sufficient water depth below the keel before you lower the
transducer.
7 To lower the transducer, press
Down
on the Operating Panel.
While the transducer is moving the indicator lamp flashes, and an
audible signal is sounded. When the requested position has been
reached, the indicator lamp is lit, and the audible signal stops.
Alternatively, use the
Hull Unit
function on the top bar to lower the
transducer.
8 At the bottom of the
Main
menu, observe that the
Operation
icon is flashing.
The icon is flashing to indicate that even if the MF90 system is turned on, "pinging" is
disabled. The MF90 system is in
Normal mode, but
TX Power
is set to Off to prevent
transmissions. This is for safety reasons.
9 Set
Tx Power
to Maximum (or any other power rating) to start pinging.
Related topics
Setting to work, page 186
Turning on the MF90 system for the first time, page 243
Simrad MF90 Installation Manual