Recording raw data
The raw data recording function provided by the MS70 allows you to save echo data using the *.raw format. You can save to the Processor Unit hard disk, or onto an external disk.
Prerequisites
The MS70 is switched on and working in normal operational mode. Neither tools nor instruments are required.
Context
The Record button allows you to start and stop recording. You can split the current recording file (if it gets too large), and set up the file output parameters. Once all the recording parameters have been defined, you can start and stop recording.
•  To start recording, click the red circle on the right side of the button.
•  To stop recording, click the left rectangle.
•  Click the middle of the button to see the available options.
Echo data files may be kept for future references. By means of the Replay  function you can later play back the recorded file(s) on the MS70. This may prove useful if more a detailed study of the data is requested. You can also use the file(s) to experiment with the MS70 operational settings, as this will help you to gain more experience.
The following requirements must be met:
•  The raw data recording and playback is operational
Procedure
1 If relevant, define the recording parameters.
2 On the Main menu, set Beam Mode to Example 1 Section Uniform Weighting.
3 Open the Operation menu.
a Set Operation to Normal.
b Set Range to a suitable value..
c Set Ping to On.
d Set Ping Mode to Interval.
e Set Ping Interval to 1 s.
f Set TX Mode to Active
g Set TX Power to Maximum.
4 To start data recording, open the Record button, and select On.
5 Allow the data recording to run approximately one minute.
6 Stop the recording.
7 Use a file manager, and verify that the recorded file(s) have been saved on the chosen disk.
8 Set Operation to Replay.
The replay bar is automatically opened. It is positioned directly below the top bar at the top of the MS70 presentation.
9 Under Operation, select Replay File to open the dialog box.
a Select Add to choose a replay file.
A standard operating system dialog box opens. It allows you to select which file to replay.
b Select OK to save the chosen settings and close the dialog box.
10 On the replay bar, click the Play/Pause button to start the playback.
Result
Test procedure Results
Recording raw data  
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