Simrad ER60, Operator'S Manual

Page: 26 / 182

Simrad ER60 Operator manual
18
850-164692 / Rev.B
Basic operations
This chapter presents a number of common procedures
frequently carried out on the ER60 echo sounder.
Changing the echogram settings
To change the echogram settings:
1 Position the cursor in the Echogram view.
2 Click the right mouse button.
3 Select Echogram from the shortcut menu, and observe the
Echogram dialogue box.
4 Make the desired changes.
5 Click Ok .
Changing the range
To change the range:
1 Position the cursor in the Echogram view.
2 Click the right mouse button.
3 Select Range on the shortcut menu.
4 Observe either the Bottom Detection or Surface Range
dialogue box depending on the current setting.
5 Make the required changes
6 Click Ok .
Changing the vertical resolution
The vertical resolution of the echogram increases with a shorter
pulse duration.
Example: A pulse duration of 1.024 millisecond gives a vertical
resolution of 19.2 cm, whereas a pulse duration of 0.256
millisecond gives a vertical resolution of 4.8 cm. If the vertical
distance between two echoes is less than this, the two echoes
will be shown as one
Observe the following procedure to change the pulse duration:
1 Click Operation on the main menu, and select Normal .
- Observe that the Normal Operation dialogue opens.
2 Set the desired pulse duration for each of the frequency
channels.
3 Click Ok .
A small value gives the best resolution, while larger values
provides you with a longer detection range.