Raymarine E90W, Руководство пользователя, Страница: 176 / 250

Depth and distance with the fishfinder
You can use VRM markers and depth lines to help you determine
depths and distances in the fishfinder display.
The fishfinder display provides a number of features to help you
determine depths and distances. These features are illustrated and
described in more detail below:
1 2 3 4 5
6
Screen item Description
1 Depth reading — your current depth displayed. The
size and position of this digit can be changed, using
the Fishfinder Display Setup menu.
2 Depth lines — horizontal dashed lines drawn at
regular intervals to indicate the depth from the surface.
These lines can be switched on or off using the
Fishfinder Display Setup menu.
3 Horizontal VRM marker — indicates the depth of a
target.
4
Depth Target ID
— depths are displayed against
recognized targets. The sensitivity of these IDs is
directly linked to the Fish Alarm sensitivity; the greater
the fish alarm sensitivity, the greater the number of
labelled returns. These targets are switched on or off
using the Fishfinder Display Setup menu.
5 Vertical VRM marker — indicates the distance behind
your vessel.
6 Depth markers — these numbers indicate the depth.
Measuring depth and distance with VRM
You can use a Variable Range Marker (VRM) to determine an
object’s depth and distance behind your vessel. These markers
consist of a horizontal (depth) line and a vertical (distance) line,
each of which are marked with the appropriate measurement and
are controlled individually.
From the main fishfinder screen:
1. Press the PRESENTATION softkey.
2. Press the SCROLL softkey to pause the display. This may make
it easier to position the VRM over the desired object.
176 E-Series Widescreen User reference