Simrad EY500, Instruction Manual

Page: 56 / 262

Operation
22
P3402/C
6. Limiting the bottom detection range
The bottom detector algorithm uses the minimum and maximum depth settings
to limit the range of interest for finding the real bottom. Very often the default
values will not correspond with the presumed depth pattern in the area of
surveying. Therefore, to speed up computations:
Select the Bottom Detection Menu.
Enter the best value according to the maximum expected depth.
7. Monitoring of data
When all of the above parameters are set, it will be possible to monitor the
incoming acoustic data by different means. For example in a split-beam system
the TS distribution bar diagram (TS-Detection Menu) and the TS window (TS-
Detection Submenu) may be useful to study, as well as the integration tables
printed together with the echogram on the printer. Scope data may be studied
in the Test Menu.
8. Sending data to disk
The disk is an independent device with its own echogram definition. Several
telegram types may be enabled for on-line storage. When LOG in the Disk Menu
is ON, the data will automatically be given a name including creation time. The
file size is limited to the value given in MAX. FILE SIZE in the Disk Menu. The
format of the telegrams are described in an appendix. The postprocessing
system will read these files and enable the user to scrutinize the data with new
layer limits.
The data file will be suited for replaying if the sample power and angle
telegrams have been stored.