Kongsberg M3 Sonar Operator's Manual page 41

2 Run both lines in the same direction and at the same survey speed.
3 Record a second set of lines to obtain a redundant data set.
Related topics
Turning on the M3 Sonar PHS , page 15
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9 Perform a patch test.
a Record Latency calibration data.
1 Select one survey line with a feature like a wreck, rock
outcrop, or slope.
2 Run the survey line in the same direction at one speed.
3 Run the same survey line in the same direction at twice
the speed of the first run.
b Record Roll calibration data.
1 Select one survey line on a flat sea floor with a depth
of 30 meters or deepest available area.
2 Run the survey line at the same speed in the opposite
direction.
3 Record a second set of lines to obtain a redundant data
set.
c Record Pitch calibration data.
1 Select one line on a sloped seafloor.
2 Run the survey line at the same speed in the opposite
direction.
3 Record a second set of lines to obtain a redundant data
set.
d Record Yaw calibration data.
1 Select two lines offset by half the swath width. The
overlap of the two runs should cover an object such as
a wreck, rock outcrop, pipeline, or trench line.
Operating procedures
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