Si-tex T-760 Series, Instruction Manual

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Chapter 3 ADJUST THE RADAR ECHO
56
3.2 SENSITIVITY ADJUSTMENT
Radar echo sensitivity Radar echo sensitivity Radar echo sensitivity
Low Middle High
It is important to be note that if you adjust the gain level to maximum, the noise might be also displayed on the
screen at the same time.
GAIN set Exceed
If sensitivity is set too high, unnecessary signals such as noises in the
receiver and false echoes increase to lower target visibility. At the same
time, if sensitivity is set too low, detection of targets such as ships and
dangerous objects may be hindered. Therefore, sensitivity must always be
set to an optimal level.
The gain level is displayed in
the bottom portion of the icon.
It is possible to judge the gain
level by the length of a green
bar roughly.
How to change the Gain level : Please refer to the gain adjustment method described in
Chapter 2.4.3.
In the case of a fine weather, gain level is set close to the maximum
values usually. In the case of a bad weather, such as heavy rain or snow
or rough seas, it is necessary to adjust not only the gain level, but also the
sea clutter suppression function and rain/snow clutter suppression
function. You need to choose an appropriate level, respectively.
It is necessary to set an appropriate gain level in order to use the radar
exactly. Failure to do so, it is possible to obtain an accurate radar echo.
Examples of the radar echo sensitivity as follows.