Edgetech 2000-DSS, User Hardware Manual

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3-17
Figure 3-9: 2000-DSS Tow Vehicle being Deployed
To deploy the tow vehicle:
1. With the survey vessel under way at up to two knots, slowly and carefully lower the tow vehicle
into the water, well away from the propeller. Do not let the tow vehicle strike the hull of the
survey vessel.
2. Lower the tow vehicle to a depth of about three meters, or just below the propeller wash.
3.
In the DISCOVER 2000-C Dual Frequency Side Scan Main window, click the Transmit tab in the
Lower Control panel, and then select the range for each frequency. This tab is shown in
F
IGURE
3-6 .
4. Click the Bottom Track tab. This tab is shown in F
IGURE
3-10 .
Figure 3-10: Lower Control Panel, Bottom Track Tab—DISCOVER 200-C Dual Frequency Side Scan
5. On the Bottom Track tab make the required settings to track the bottom and note the tow vehicle
altitude in the Altitude display.
6. Lower the tow vehicle such that its altitude is 10–15% of the range selection.