3-10 CHAPTER 3 Setup and Test
Series 3000 Sonar System Operations and Maintenance Manual 11210066, Rev. 11
6.
Check the Ethernet Hub port status for two ports lit, if only the computer and the
TPU are connected to the hub.
7. On the computer, start SonarPro and observe that the towfish is transmitting by
viewing the output pulse in the Sonar Viewer window. Also check that GPS data
are being displayed in the Information window.
8. Select the 150-range, open a second Sonar Viewer window and select the low
frequency operation. Allow the TVG to normalize; it will take about two minutes.
9. Perform a rub test on the port and starboard transducers to confirm that the
receiver mode is operating properly. Vigorously rub each transducer, one at a
time, while observing the Sonar Viewer window in SonarPro for returns.
10. Exit SonarPro and turn off the computer and the TPU.
3.6.2 Activating and Testing the System at Sea
To activate and test the system at sea:
1. Turn on the GPS receiver (customer supplied), and let it acquire its location.
2. Verify that the tow cable is connected to the TPU and the towfish.
3. Turn on the computer and wait for the Windows desktop to appear.
4. Turn on the TPU.
5. Open the front door of the TPU and verify that the LOCK LOSS and ERROR
lights come on, and that they both turn off after approximately 45 seconds.
6. On the computer, start SonarPro and observe that the towfish is transmitting by
viewing the output pulse in the Sonar Viewer window. Also check that GPS data
are being displayed in the Information window.
7. Deploy the towfish.
8. Adjust the towfish within the water column so that it is at a comfortable altitude
off the bottom and under the boat wake (about 15 percent of range). A good
starting vessel speed is around 4 or 5 knots. Check for the following:
• The image is satisfactory for both the high and low frequency channels.
• Pitch, roll, depth, and altitude are being displayed.
• Speed and heading are being displayed from the GPS.
9. Refer to the SonarPro User Manual (P/N 11210079) for instructions on how to
operate SonarPro to acquire, display and record sonar data.
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