
Operational procedures
75
857-164636 / Rev.A
How to zoom in on pelagic echoes
The
VRM Expansion
functions allows you to zoom in on
echoes in the water column.
When this function is active, the echo sounder presentation is
split in two. The upper part is the ordinary presentation, while
the lower part shows the expansion window with the echoes
over and under a reference depth.
Activate VRM Expansion
1
Make sure that your echo sounder presentation is in view.
2
Press the
MENU
button to open the main menu.
3
Open the
Echo
menu.
4
Select
VRM expansion
.
If your current window was not an echo sounder, you have now
closed it, and replaced it with an echo sounder with VRM
expansion. If you have an additional echo sounder page you will
need to enable the expansion mode for that page separately.
Change the reference depth
1
Press “up” and “down” on the
Selector pad
to change the
reference depth.
The depth you select will be stored by the echo sounder. The
next time you activate the VRM expansion mode, it will
autmatically use this reference value.
Change the range in the expansion window
1
Press the
ENT
button to open the
Presentation setup
.
2
Locate the
Expansion window
setting, and change to a
new value.
3
Press the
ENT
button save the setting and return to the
echo sounder view.
De-activate VRM Expansion
1
Press the
MENU
button to open the main menu.
2
Open the
Echo
menu.
3
Select
Echo display
.
Related topics
→
Echo presentation setup, page 154
Содержание PI32
Страница 2: ......
Страница 12: ...Simrad PI32 VIII 857 164636 Rev A ...
Страница 223: ...PI Configurator 211 857 164636 Rev A Quit Click this button to close the PI Configurator utility ...
Страница 267: ......
Страница 268: ...E 2005 Simrad AS ISBN 82 8066 059 3 ...