Furuno DRS4W User Manual

1
1. OPERATION
1.1 System Overview
The radar sensor transmits pulses of micro-
wave energy that bounce off any object in
their path. The object returns a tiny part of the
wave's energy to the radar sensor. Radar de-
termines the distance to a target by calculat-
ing the time difference between the trans-
mission of a radar signal and the reception of
the reflected echo. The bearing to a target
found by the radar is determined by the direc-
tion in which the antenna is pointing when it
emits an electronic pulse and then receives a
returning echo.
The radar sensor forwards the returning ech-
oes to the iOS terminal (iPhone, iPad), using
its wireless LAN module. The radar applica-
tion in the iOS terminal displays the radar ech-
oes on the terminal’s display and provides
controls for adjustment of the radar picture.
1.2 How to Start, Stop
the System
Power the radar sensor to acti-
vate the system. Open your iPad
or iPhone terminal and click the
[Marine Radar] application icon
(see right figure).
The splash screen appears for a few mo-
ments, then the application tries to connect to
the radar sensor, which normally takes no
more than three seconds. If the connection is
successful, the [Preheating] display appears.
If the connection
failed, the window
shown right appears.
Tap the [Search
again] button to try to
connect to the radar
sensor. If you cannot connect to the radar
sensor, check for interfering objects near the
sensor and make sure the wireless LAN func-
tion is enabled on your terminal.
The preheating stage, which warms the mag-
netron (the device responsible for transmitting
radar pulses), takes approx. 90 seconds. The
time remaining until the completion of the pre-
heating is counted down at the center of the
screen. After the completion of the preheat-
ing, the STBY display appears.
To deactivate the system, disconnect the ra-
dar sensor from the power source.
Note: To connect an iOS terminal to another
DRS4W, reset the application first.
Radar sensor
iPhone
iPad
Wireless LAN
2.4 GHz
Wireless LAN
2.4 GHz
Splash
screen
Searching
radar sensor
Preheating
display
Radar sensor
communciation error!
E0002: Please check WLAN
connection setup, and power is
applied to radar sensor.
Search again

Furuno DRS4W Specifications

General

Brand	Furuno
Model	DRS4W
Category	Marine Radar
Language	English