FLIR RAYMARINE E125 - Depth and Distance; Measuring Depth and Distance with VRM

Menu Item Description Options
• Inv. Slate Grey
Scroll Speed Specify the sonar
scroll speed.
• 100% (default)
• 10% to 500%
** Gain controls Controls whether
or not the
on-screen
sensitivity settings
are displayed.
• Show (default)
• Hide
Databoxes Set-up
Allows you to
set up and
display/hide up to
2 databoxes in the
bottom left corner
of the screen:
• Databox 1
• Select Data
• Databox 2
• Select Data
Databox 1
• On
• Off
Select Data
Allows selection
of a data type by
category.
Databox 2
• On
• Off
Select Data
Allows selection
of a data type by
category.
Note:
• * Not available on DownVision
TM
or
SideVision
TM
channels.
• ** Not available on SideVision
TM
’
• *** Only available on SideVision
TM
’
15.18 Depth and distance
Legacy, Traditional CHIRP and DownVision
TM
sonar
modules use there respective transducers to obtain
depth readings. SideVision
TM
can only display
depth readings when a separate source for depth is
available on the network.
The Sonar application provides a number of features
to help you determine depth and distance.
Description
1
Depth reading — current depth of bottom.
2 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 sh alarm sensitivity, the greater the number of
labelled targets.
3 Depth lines — horizontal dashed lines drawn at regular
intervals to indicate the depth from the surface.
4
Horizontal VRM marker — indicates the depth of the
target.
5
Vertical VRM marker — indicates the distance behind
your vessel.
6
Cursor Depth — this is the depth of the cursor position.
Cursor Range — this is the range from your vessel to
the cursor position.
7
Depth markers — these numbers indicate 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
labelled with the appropriate measurement.
From the Sonar application:
1. Select Menu
2. Select Scroll so that Pause is highlighted (This
may make it easier to position the marker).
Selecting Scroll will switch the scroll between
Pause and Resume.
3. Select the location you want to place the marker.
4. Open the Sonar context menu.
5. Select Place Marker.
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