Recording Sonar Data 4-174.8.4 LagOn the right side of the Main tool bar is the Lag display as shown in Figure 4-23.Here you monitor the performance of SonarPro, and it provides a level ofconfidence that no sonar data are being lost. If at any time SonarPro is overloaded,such as having too many tasks to perform, the status box will begin to increment.When the incrementing number reaches the set threshold, the background will turnred. In general, the count can increment to a number above 200 before you begin tonear the data loss point. If the count begins to increase and does not decrementback to zero, by closing a window or two the count should go back to zero.Left-click in the Lag display to open the Ping Lag dialog box shown inFigure 4-24. Here you can set a ping lag threshold and a time interval for SonarProto check the ping status. An audible beep may also be enabled.4.9 Recording Sonar DataData RecorderClick this button to record data. The Sonar Data Recorder dialog box will open asshown in Figure 4-25.The Sonar Data Recorder dialog box allows you to specify the recorderparameters for saving the survey data. When operating SonarPro with the Series5000, only the Record to SDF disk file area will be active. When operatingSonarPro with the Series 3000, both the Record to SDF disk file and Record toXTF disk file areas will be active. You can record in either or both file formats atthe same time. SonarPro will only play back XTF data that have been recorded bySonarPro.Figure 4-23: The Main Tool BarFigure 4-24: The Ping Lag Dialog BoxNOTE For troubleshooting purposes a Check Lag of 5 seconds isrecommended; for slower computers you may have to use 15 to 20 seconds.
