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Operational procedures
47
857-164342 / Rev.C
Record and playback
Overview
You can set up the echo sounder to record the unprocessed
transducer signals on the internal harddisk or other recordable
media. This recorded signal may later be injected into the echo
sounder’s processing software as if it arrived directly from the
transceiver.
During this replay, you may experiment with some of the echo
sounder settings.
This feature is useful during training and demonstration. It is
also useful for memorising a particularly interesting observation
at the fishing grounds.
You can also use the built-in History functiontorecord
echogram data.
Record
Preparations
The recording is prepared as follows.
1 Select Store on the File menu.
- Observe the Store dialogue box appear.
2 Select the complete path of the survey directory.
- The directory is selected when you click the OK
button. Click the Browse button if you wish to navigate
through the disk directories. A new directory is created
if the requested does not exist.
3 Select if you wish to save raw and/or output data.
- Raw data: The unprocessed transceiver data are stored
in standard computer files. These files contain all the
necessary data for reconstruction of the situation during
the real survey. Thus the data include amplitude, phase,
navigation data, annotation input etc. The echo sounder
program reads these files during replay.
- Output data: This is the processed output data;
navigational data, bottom detections, annotations etc
4 Select the initial line number.
5 Enter the maximum size of each replay file.
6 Click Ok.
Start recording
Use the Line fieldintheStatus bar to start the recording.