Simrad SH90 - REFERENCE MANUAL REV A Reference Manual page 107

323775/A
• : This button provides a read-out of the current
Echo level
noise in the waters surrounding the vessel. This noise is
caused by air bubbles, water flow and mechanical disturbances
from hull and engine.
• : This button provides a read-out from the roll sensor.
Roll
It presents the actual roll value at the time of the last
transmission.
• : This button provides a read-out from the pitch sensor.
Pitch
It presents the actual pitch value at the time of the last
transmission.
• : This button provides a read-out of the current
TRU Temp
temperature inside the Transceiver Unit. If the temperature
rises to an unacceptable level, an alarm will be given.
• : This is a built-in software function that may
Interpolation
give a more realistic presentation of the echoes.
• : This button opens the
Message bar
dialog, which allows you to monitor operational messages
from the sonar. (► Message Bar on page 141)
• : This button opens the
Installation menu
the top of the display. This menu is used during installation
of the sonar, and information about this is provided in the
Installation manual.
• : This button allows you to switch the
TRU ON/OFF
Transceiver Unit on or off. Two dialog boxes provide you
with the status of this process.
• : This button provides access to a small information
About
dialog providing the current software version. (► About on
page 121)
Menu descriptions
parameter
Message bar
menu on
Installation
105