Operation menu
The Operation menu allows you to control the operating mode, the recording functionality, and how the ST90 transmits (ping) into the water.
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How to open
Select the Operation icon.
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The icon is located under the Main menu. Select the icon one more time to close the menu.
Note
Immediately after you have turned on the ST90, the Operation icon is flashing. The icon is flashing to indicate that even if the ST90 is turned on, "pinging" is disabled. When the ST90 is turned on, Tx Power is by default set to Off. This is a safety precautions to prevent inadvertent transmissions when the vessel is in dry dock.
Description
Only brief descriptions are provided. For detailed information about each function and dialog box, refer to the ST90 Reference manual or the context sensitive on-line help.
Tip
If you do not need to use the menu system, you can hide it. This allows more space for the ST90 presentation.
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Use Menu on the top bar to hide or show the menu.
When the menu system is hidden, it appears temporarily on the left or right hand side of the screen if you move the cursor to that position.
•  Operation
The Operation function controls the operating mode of the ST90. You can set it to Normal, Replay or Inactive.
•  Transmission Mode
Transmission Mode allows you to control how often the ST90 shall transmit acoustic energy (ping) into the water.
•  Record
Record allows you to record echo data. You can save the data to the Processor Unit hard disk, or onto an external storage device. The data files can be played back on the ST90. You can keep the recorded files for future reference, or for training purposes.
•  Tx Power
Use Tx Power to increase or decrease the output power. The output power is selected from predefined steps.
•  Audio
Select Audio to turn the audio output on or off. The audio information is generated based on the echoes retrieved from the bearing defined by the bearing line. If you need to adjust the volume use the controls on the audio equipment you use.