Simrad SH40
How to hide the menu
The menu is normally located on the right hand side of the display, but if you don’t need it, you can easily remove it.
1 Press the Menu button on the Sonar Control Panel.
The Menu button will act as a toggle switch. Press once to remove the menu, and one more time to retrieve it.
You can also use an alternative method:
1 Press the Display tab.
2 Click the Full screen: Off button.
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In order to restore the previous menu location:
1 Move the cursor to the far left or far right side of the display
Observe that the menu appear.
Click the Full screen: On button.
Horizontal menu
The Horizontal menu is used to control the horizontal presentations. The parameters chosen are present in all display modes. When a horizontal parameter setting is selected and defined in one mode, the chosen settings will automatically be applied to all modes.
• Range : Select the current range.
• Tilt : Select the sonar beam’s vertical angle.
• Bearing : Add a white bearing line to your sonar picture.
• Gain : This setting controls the amplification of the received echoes.
• Pulse form : The standard pulse form is FM Auto . If you experience a lot of reverberation from the bottom, decrease the pulse length. In good water conditions while searching for scattered fish, you may well use setting CW Long .
• TX Power : This button switches the transmission power on or off.
• Frequency : On the SH40 you can alter the sonar’s transmission frequency. This is very useful if you have other vessels in the vicinity. Remember that lower frequencies will increase the range of your sonar, but also give you a wider beam.
• TVG : Time Varied Gain. This function will automatically adjust the gain in the sonar to compensate for geometric spread and absorption.
• RCG : Reverberation Controlled Gain. This function will automatically remove unwanted reverberation from the bottom or from the sea surface. It may however also remove scattered fish.
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