Furuno FCV-1900 User Manual

1. OPERATION
1-11
1.8 Measuring Depth
The VRM (Variable Range Marker) measures the depth to a school of fish, etc.
1. Press the VRM key to assign the VRM
control function to the ENTER knob.
2. Rotate the ENTER knob to place the
VRM on the object to measure depth.
Note: For FCV-1900B and FCV-1900G,
you can control the VRM by moving your
finger across the touchpad.
3. Read the VRM depth just above the
VRM.
1.9 Inscribing Lines (TLL)
You may inscribe vertical lines (TLL lines) on the display to mark schools of fish,
shoals, etc. The position at the same time a line inscribed is output to a chart plotter.
Note: This function requires the own ship’s position data from a position-fixing equip-
ment.
1. Press the VRM key twice to show [TLL] at the upper right of the display.
The indication at upper right of the display changes in the sequence: VRM  TLL
 VRM  … by pressing the VRM key. When [TLL] appears at the upper right of
the display, the TLL line (green dashed line) appears at the right of the display and
the picture is stopped.
2. Rotate the ENTER knob to place the TLL line on a school of fish, shoals, etc.
Note: For FCV-1900B and FCV-1900G, you can control the TLL line by moving
your finger across the touchpad.
3. Push the ENTER knob.
The green dashed line changes to the red solid line and the current echoes appear
on the display. At this time, the TLL sentence is output to a chart plotter in the de-
fault setting.
Note: The data included in the TLL sentence can be set on the [NMEA Port
Set&Monitor] menu (see section 2.8).
1.10 Scroll Back Mode
The scroll back mode shows a maximum of the past two screens of fish finder images.
How to activate the scroll back mode
1. Long press the ENTER knob to activate the scroll back mode.
[SCROLL BACK] appears at the upper right of the display.
2. Rotate the ENTER knob in the counterclockwise direction to show the past echo.
Counter clockwise rotation moves the screen leftward (past direction). When the
past echo is displayed, icon appears at the top of the depth scale. Clockwise
47.647.6
mm
2020
4040
6060
8080
00
37.537.5
0/99
x 1 x 1 x 1
VRM 37.5
VRM Depth
VRM
HF: 2.0

Furuno FCV-1900 Specifications

General

Brand	Furuno
Model	FCV-1900
Category	Fish Finder
Language	English