23
A positive value is the distance between the transducer and the water surface. A
negative value is the distance between the transducer and the lowest part of the
keel.
Gain and TVG adjustment
Touching Gain/Tvg button shows a set of slider controls for both.
Touch and slide the appropriate slider control to increase and
reduce these settings. The adjusted values are indicated on the
buttons
Increase the gain if the signal appears too weak (for example, in
deep water or over very soft bottoms), and decrease it if it is too
strong, and seems to be “saturating” (in shallow water and very
hard bottoms).
TVG also boosts the receive signal, but the amount of gain
increases with time, which helps to detect a deep seabed
without increasing the level of interference from objects in the
water between the boat and the seabed.
Touch the button below the slider to revert to factory settings.
Changing depth alert values
To change these values, touch one of the Alert
buttons.
A digital keyboard appears on the screen; Enter
the desired value in the edit line and press “Enter”
button.
The value in the Alert button changes to show the
new selection.
Echogram color coding
The strength of the received echo signal is color
coded, when displaying in the echogram window.
Revert to factory settings
Summary of Contents for EMES60
Page 8: ...7 2 3 System Structure ...
