Edgetech 2000-CSS, User Manual

Page: 49 / 101

3-15
Figure 3-7: Options Dialog Box, Display Tab—DISCOVER Sub-Bottom
CAUTION! Do not allow the sub-bottom transducer on the towfish to
continuously transmit in air for an extended period as damage to the
transducer could occur.
i. From the Sonar menu, choose Sonar On. When the sonar is on, a check mark appears next
to the menu item.
The transducers on the towfish should begin transmitting and data should begin scrolling
on the Sonar display in the DISCOVER Sub-Bottom Main window.
j. Listen for transmissions from the sub-bottom transducer and verify that they are present.
k. Tap the underside of the towfish near the hydrophones with the handle of a screw driver
while observing the Sonar display in the DISCOVER Sub-Bottom Main window.
You should observe streaks or noise spikes in the waterfall display.
5. Play back the data from these tests to verify that data can be recorded and played back, and that
HPR, pressure (if equipped), and navigation data is present.