4-48
2050-DSS SIDE SCAN AND SUB-BOTTOM SYSTEM
0024048_REV_A
CAUTION!
The deployment instructions below are only meant as a
general guide. Due to varying conditions, exact deployment methods will
change, and it is up to the end-user to modify their deployment
procedure to match the conditions they are working under.
CAUTION!
When lowering the towfish in an area where the bottom
topography is unknown, take care not to strike the bottom or a
submerged object. Otherwise, damage to the Towfish may occur.
Carefully monitor towfish altitude always during the survey. Failure to do
so could result in the towfish hitting bottom or becoming snagged.
CAUTION!
Do not tow the towfish too close to the survey vessel. Towing
in this manner can cause the Towfish to be pulled in against the ship's
hull due to the low pressure of the propeller wash and the effect of the
water flowing by the hull. In addition, sonar reflections from the hull may
be evident in the records.
CAUTION!
Do not tow the towfish with the nose angled up or down.
Doing so can degrade the sonar imagery. Verify that the Towfish is as level
as possible when towing it.
NOTE:
For detailed towing characteristics for many tow cable types and
lengths, along with towfish speeds, with or without a depressor, refer to
NOTE:
For detailed information about the Discover software, including
