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Figure 3-4 Echo and Data Display
(1) Current gain value. It means the current signal magnified grade.
(2) Gain-step value. It has six values in the array of 0.0/0.1/0.5/2.0/6.0dB.
(3) Measurement point data. It is displayed the measurement data, including “Sa”,
“Ha”, “Sb” and “Hb” etc.. The four data can be set if necessary. Please refer to
appendix
Ⅳ
for their detailed definition.
(4) Gate
(a) There are two gates which are Gate A and Gate B. It is only one gate used
in the common testing task and usually the default gate is Gate A.
(b) The function of the gates is to test the selected echo signal or alarm. In the
testing task, there may appear many echo signals in the instrument screen
at the same time. You can move Gate A to select the echo signal you
required.
Current
Gain Value
Gain-step
Value
Gate A
Measurement
Point Data
Gate B
Highlight
