GE USM 36 Series Technical Reference And Operating Manual page 171

Distance-amplitude correction (DAC)
– Select the function gate a start and position the gate
A on the first DAC echo.
– Select the function AUTO80 and press one of the se-
lector keys to automatically set the echo to 80 %
screen height.
– Select the function RECORD and press one of the
selector keys key to store the first DAC point. The in-
dication (1 POINT) confirms the recording. After this,
the function gate a start is automatically selected.
USM 36
– Position the gate A on the second DAC echo.
– Select the function AUTO80 and press one of the se-
lector keys to automatically set the echo to 80 %
screen height.
– Select the function RECORD and press one of the
selector keys to store the second DAC point. The in-
dication (2 POINTS) confirms the recording. After
this, the function gate a start is automatically select-
ed again.
– Record further DAC points in the same way.
Issue 2 (12/2013)
5 Operation
5-95