Document: 990-0000046-1000
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7.4.3
D
EPLOYMENT
T
ESTS WHEN
O
PERATIONAL
Test
Possible Trouble Area(s)
Random irregular white lines occur in the
across-track data
Wet-end tow cable connector
Any cable and connection in the tow cable
line
Water in the towfish
Check data link
Banding in the along-track record.
Recalibrate towfish. See 4200 Discover
manual for procedure.