6 Defining the depth range for raw data recording

Before you start recording, you must specify the range you wish to use. The EK80 will only record the echo data retrieved between the selected Start Range setting and the total range.

Context

You can set up a common recording range for all active channels, or individual ranges for each channel. In this context, the term channel is used as a common term to identify the combination of transceiver, transducer and operating frequency.

Tip

Set up the recording parameters before you start the recording.

Procedure

Open the Operation menu.

Select Output.

Observe that the Output dialog box opens. This dialog box contains a number of pages selected from the menu on the left side.

In the Output dialog box, select File Setup.

On the File Setup page, define the recording parameters.

Select Common to use the same recording range for all your active channels.

Use Range to define the depth range to collect data from. Select Auto to allow the EK80 to automatically find the required range value.

or:

Select Individual to use the different recording ranges for your active channels.

Limiting the recording range for high frequency channels is useful to reduce file size.

Select OK to save the selected settings and close the dialog box.