Furuno 1835 Quick Manual page 3

AIS / Target Tracking ( TT ) Display
Up to 100 AIS and 10 TT targets can be tracked and overlaid on the Radar screen to assist the operator in tracking vessel
movements. Since AIS works by a VHF transceiver system, a variety of navigational information such as vessel name, speed, ROT,
draft, and the destination of the selected targets can be included in real time. Unlike TT targets, AIS targets are visible even if they are
located behind large ships or islands.
Optional supply required
The vessel behind
an island
Own ship's position
AIS targets can show that a vessel is coming from behind
an island, where a Radar beam does not reach.
A target can be shown in a zoom display while its detailed movements are tracked by AIS or TT.
Target Zoom
The conventional zoom function is also available by which the operator sets the zoom function on the target manually.
Target acquired and tracked. Target shifts its position.
Full Screen Mode
With Full Screen Mode, the entire screen is filled
with an echo image. Full-screen echo presentation
capability allows the operator to observe a wider
overview of the surrounding area.
There is also an option to clear the navigation data on the Radar display.
Individual navigation data can be easily toggled ON or OFF in the dedicated menu.
Full screen mode
AIS Target
TT Target
Target A 3
Target A 2
Target A 1
Zoom box tracks the target object
according to its movement.
Data off
Normal mode Full Screen Mode with no NAV data
Anti-Clutter Controls
Adding to the enhanced auto clutter controls, dedicated rotary knobs are provided for the suppression of unwanted echoes from sea
clutter, rain and other forms of precipitation. Anti-clutter settings can be adjusted manually to remove sea and rain clutter from the Radar
screen to gain a clearer view of Radar targets.
Rain
Control
ON
Rain disturbs target recognition on the Radar screen.
Short Range Target Discrimination
With its advanced signal processing technology,
the 1835/1935/1945 series demonstrates
substantial increases in target detection, particularly
in close range. As shown in the pictures on the
right, the Radar clearly displays thin piers from a
very short distance.
Thin piers standing in front of a beach.
Off Center Mode
With a push of the "OFF CENTER" button, own ship position is shifted to a pre-registered point on the screen.
This allows the operator to focus on a specific area ahead of or around the vessel without losing track of the position.
Off center mode
Featuring dedicated rotary knobs to adjust
GAIN/STC/FTC for straightforward operation.
Clearance between markings
of the bearing scale is
changed according to the
proximity between own ship
and the bearing circle, as
shown in the images on the
left-hand side.
It helps to grasp the bearing
to the target echo without
using EBL.