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Note:
a) for the fish target detected under 200kHz, the depth readout on the fish ID is
displayed in Green color.
b) for the fish target detected under 50 kHz, the depth readout on the fish ID is
displayed in Red color.
TCG Control
This function is optimized fog high power-output sonar
system. It could help the sonar work properly in a noisy
environment. In order to control the surface noise and the
self-ring of the transducer, it changes the sensitivity
automatically at the depth’s changes. The diagram below
shows the sensitivity changes according to depth.
Note: from the diagram, we can see that the TCG function
only controls the signal between 0 and 5 meters. So, if the environment is noisy, and you
wish to see the underwater conditions in the shallower layer near 0-5 meters, you have to
set the TCG control “On”.
Note: in air, the signal consumption is much bigger than in water. So, if you try to test the
sonar sensitivity in the air, you have to set the TCG Control “Off”.
To set the TCG Control:
1) Press Menu to enter into the menu
setting.
2) Use the Up / Down Arrow to select
Sonar Option.
3) Press Right Arrow to enter into
Sonar setting.
4) Use the Up / Down Arrow to select
the TCG Control option.
5) Press Right / Arrow to enter into the
setting.
6) Press Up / Down Arrow to change
the option.
7)
Press Ent to confirm the setting.
8)
Press Exit to exit from the menu
setting.
2. Display
Depth Range
Depth Range determine in which portion the bottom will display in the screen.
