SYSTEM OPERATION
SeaBat 8160
Operator‟s Manual
Page 38
October 6, 2011
Version 5
5.9.5 Check the Status of Sensor Inputs
This item indicates the current input value from the remote sensors interfaced to
the system. If a sensor is not installed, its value will be blank.
Pitch:
Current pitch value in degrees as measured by the motion sensor
(if installed).
Roll:
Current roll value in degrees as measured by the motion sensor (if
installed).
Heave:
Current heave value in meters as measured by the motion
sensor (if installed).
Velocity:
The current sound velocity in meters per second (m/sec) as
measured by the velocimeter or CTD sensor (if installed).
UTC Date:
The current UTC date from an external date/time source (if
installed).
UTC Time:
The current UTC time from an external date/time source (if
installed).
NOTE
The velocity of sound, at the face of the projector, is required for proper Beam
Steering angles and scaling of the sonar wedge in the Main Display.
UTC Date and Time are required for accurate time stamping of bathymetry and
sidescan output data. In the absence of UTC, the included latency value may be
used in lieu of the time stamp.
5.9.6 Review Offset Graphs
The two offset graph blocks (Receiver Gain Offsets and Receiver Phase Offsets)
represent the uniformity of the receiving channels of the receive array. (Slight
channel-to-channel variations are normal.)
Receiver Gain Offsets:
Condition
Color
Value
Acceptable
Green
<
2.0dB
Marginal
Yellow
≥
2.0dB to <
3.5dB
Extreme
Red
≥
3.5dB
