Edgetech 2000-TVD, User Hardware Manual

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3-13
5. Turn on the POWER switch on the front panel.
The FISH POWER indicator should illuminate; the LAN indicator should flash continuously; and the
LINK indicator should flash while a reliable communications link with the towfish is being
established and then illuminate continuously when the link is found. In addition, the NET indicator
on the Status bar at the bottom of the Main window should indicate as follows:
3.8.2 Performing the Pre-deployment Checks
The pre-deployment checks should be performed after the system is activated and before the towfish is
deployed. They can be performed using a tow cable, deck cable, or test cable. These checks are performed
for both the side scan and sub-bottom sonars and involve rubbing your hand on the side scan transducer
arrays and tapping the sub-bottom hydrophone arrays while observing the Sonar displays in the DISCOVER
Main windows; verifying correct heading, pitch and roll outputs; zeroing the optional pressure sensor if
installed; and verifying that data can be recorded and played back in DISCOVER.
To perform the pre-deployment checks:
1. Activate the system as described in A
CTIVATING THE
S
YSTEM
.
2.
In the DISCOVER 2000-C Dual Frequency Side Scan Main window, click the Transmit tab in the
Lower Control panel. This tab is shown in
F
IGURE
3-5 .
Figure 3-5: Lower Control Panel, Transmit Tab—DISCOVER 2000-C Dual Frequency Side Scan
CAUTION!
Do not allow the side scan or sub-bottom transducers on the
towfish to continuously transmit in air for an extended period as damage
to the transducers could occur.
3. Select the High Sonar On and Low Sonar On check boxes.
The side scan transducer arrays on the towfish should begin transmitting and data should begin
scrolling on the Sonar display in the DISCOVER 2000-C Dual Frequency Side Scan Main window.