Functions and dialog boxes

Operation

The Operation function controls the operating mode of the ST90 system. You can set it to Normal, Replay or Inactive.

Transmission Mode

Transmission Mode lets you to control how often the ST90 system shall transmit acoustic energy (ping) into the water.

Tx Power

Use Tx Power to increase or decrease the output power. The output power is selected from predefined steps.

Record RAW

Record RAW allows you to record the unprocessed echo data received by the transducer. You can save the data to the hard disk, or onto an external storage device. The data files can be played back on the ST90 system. You can keep the recorded files for future reference, training purposes and calibration.

Record Processed

The Record Processed function allows you to record the processed echo data received by the transducer. Which processing to apply is controlled by the settings on the Processed Data to File page. Processed Data to File is located in the Output dialog box.

Output

The purpose of the Output dialog box is to collect all functionality related to data output in one easily accessible location. The dialog box is organised in pages grouping parameters for different parts of the application.

The following pages are provided:

File Setup

A useful function of the ST90 system is it ability to record echo data. To retrieve the data files you need to know where they are, and which file names that have been used. The purpose of File Setup is to define the file and folder properties for the data files that you are recording. You can select the disk and folder for the files, the maximum file size, and a prefix for the file names.

I/O Setup

To communicate with peripheral devices the Processor Unit offers several serial and/or Ethernet (LAN) ports. The number of communication ports depends on how your Processor Unit is set up and configured. For each port, you can set up the communication parameters, and monitor the data flow.

Processed Data to File

The ST90 system can export several types of processed data file formats. Use Processed Data to File to define which processed data formats to save, and where to place the files. This page is located in the Output dialog box.

Marker output

Use the Output Marker page to export target markers to a communication port.

Relay Output

The ST90 system allows you to export the same sensor data that was originally imported. This functionality permits you to reuse the sensor data on other systems. Use the Relay Output functionality to set up and control the sensor data export.

Screen Recording

The Screen Recording function allows you to record and save the echo presentation as a video file. Each screen recording you make is saved in .mp4 format on the Processor Unit hard disk. Use the Screen Recording page to define where the video files are saved.

Screen Captures File Location

While using the ST90 system you may wish to make a screen capture to save an instantaneous copy of the current presentation. Use Screen Capture File Location to define where to save your screen captures.

Audio

Select Audio to turn the audio output on or off. The audio information is retrieved from the audio beam.

The Bearing function controls the horizontal direction of the Vertical view, the audio beam and the beam in each Inspection view. The current bearing applied to the Horizontal view is shown with a solid line pointing out from the sonar position.

With the Audio Sector function, you can listen to the audio from all the beams in a user-defined sector. Select Audio. Select Audio Sector to open the choices under the button.

• Select Audio Beam to retrieve audio information only from this beam.
• Select any opening angle to specify the width of the listening beam from which the ST90 system will obtain audio information. The listening beam places the audio beam in the middle. The entire listening beam rotates when the audio beam rotates.

If you need to adjust the volume use the controls on the audio equipment.