Edgetech 4125 SIDE SCAN - Figure 3-7: Rub Test Screen Shot

3-13
Figure 3-6: Performing a Rub Test
6. You should observe streaks or noise spikes in the waterfall display, as seen in Figure 3-7.
Figure 3-7: Rub Test Screen Shot
7. Verify that the heading, pitch, and roll sensors are working correctly by rotating, tilting, and rolling
the tow vehicle while observing the Heading, Pitch, and Roll displays in the Lower Indicator bar in
the DISCOVER 4125 Main window.
8. Verify that the Pressure display indication is at or nearly zero. The pressure sensor can be zeroed
on deck in DISCOVER 4125 software under External Device Controls.