Odom ECHOSCAN, Manual

Page: 14 / 44

04/26/02 14
Revision 1.11
Setup
Under the “Setup”
menu, controls adjust
system configurations
such as communication
ports, calibrations
parameters, hardware
settings, and display
options. System
accuracy and
performance may be
optimized under
“Setup”. The following
table lists and
describes each of the
Setup submenu
options.
Submenu Options Description
Commport Selects COMM 1, COMM 2, or COMM3 for communication
between the LCDU and the SPU. If “Simulator” is selected,
random data is plotted.
Velocity (or
Cntrl+V) Enter the mean water column sound velocity (in the units
selected) as determined by a velocimeter or “bar check”. Velocity
is transferred to the SPU and included in the output string to the
data acquisition computer. The LCDU display is corrected for
Velocity and Draft settings.
Transmit Pulse
Width Sets the transmitter’s pulse width in number of cycles at 200 kHz.
Pulse width settings range from 0 to 4 where 4 is the widest pulse
(See Table 4).
Transmit Power (or
Cntrl+P) Adjusts the transmitter’s output level. Power output setting
ranges from 0 to 4 where 4 is full power.
Draft Depth of the transducer below the surface. “Draft” is used only for
correction on the LCDU display. It is determined by physical
measurement or by “bar check” calibration. “Draft” in not
transferred to the SPU and does not appear in the SPU output
string.
Units Sets units of measure. Meters (Cntrl+M) or Feet (Cntrl+F)
Side Scan Invokes a pop up dialog box to adjust the side scan receiver gain
and TVG curve.
Figure 12
Setup Menu