Furuno 1815 User Manual

5. OPERATION
5-34
5.23 How to Program the FUNC Key
The FUNC key can be programmed to do the function you assign.
Function key operation
Press the FUNC key to do the function assigned to the key. Press the key successive-
ly to change the setting.
How to change a function key program
1. Press the MENU/ESC key to open the menu.
2. Use the Cursorpad ( or ) to select [Others] and press the ENTER key.
3. Use the Cursorpad ( or ) to select [Func Setup] and press the ENTER key.
4. Use the Cursorpad ( or ) to select a function from the list and press the EN-
TER key. Below are the available functions.
Function list
5. Press the MENU/ESC key to close the menu.
5.24 Echo Average
To identify true target echoes from the sea clutter, echoes are averaged over succes-
sive picture frames. If an echo is solid and stable, the echo is shown in its normal in-
tensity. The brilliance of sea clutter is reduced to easily identify true targets from the
sea clutter.
Note 1: Do not use the echo average function under heavy pitching and rolling. You
can lose a target.
Note 2: This feature requires a heading signal and position data. When either signal
becomes lost, echo average is deactivated.
To correctly use the echo average function, first reduce the sea clutter:
1. Press the MENU/ESC key to open the menu.
2. Use the Cursorpad ( or ) to select [Echo] and press the ENTER key.
Off
TLL
Rings Brill
Mark Brill
HL Brill
Char.Brill
Viewing Posn.
Display Color
Echo Color
Back. Color
Char. Color
Echo Col. Mode
Display Mode
Zoom
Echo Stretch
Echo Stretch
Echo Average
Int Rejector
Display-Curve
Watchman
Trail Time
Trail Erase
Trail Grad.
Trail Color
Vector Ref.
TT-Display
TT-Erase Lost
AIS-Display
AIS-Erase Lost

Furuno 1815 Specifications

General

Display Size	10.4 inches
Type	Marine Radar
Power Output	4 kW
Antenna Type	Open Array
Display Type	LCD
Rotation Speed	24 RPM
Range	Up to 36 nautical miles
Frequency	9410 MHz ±30 MHz
Range Scales	6, 12, 24, 36 NM
Beam Width	25° (Vertical)
Range Resolution	20 meters
Display Modes	True Motion
Power Supply	24 V DC

Summary

SAFETY INSTRUCTIONS

Radio Frequency Radiation Hazard

Hazards related to RF radiation exposure from the radar antenna.

Do not open the equipment

Warning against opening the equipment due to high voltage risks.

Handling Water and Fire Hazards

Procedures for water ingress or fire incidents to prevent electrical shock.

Do not disassemble or modify the equipment

Warning against unauthorized modification to avoid injury or damage.

INSTALLATION

How to Install the Display Unit

Instructions for mounting the display unit on a desktop or flush mount.

How to Install the Antenna Unit

Guidelines and considerations for selecting a mounting location for the antenna.

How to connect the power cable

Steps and precautions for connecting the power cable to the antenna unit.

WIRING

Wiring

Instructions for connecting the display unit to other equipment and power.

Ground

Guidelines and precautions for grounding the display unit to prevent interference.

INITIAL SETTINGS

Initial Settings

Accessing and performing initial setup procedures for the radar.

OPERATION

Controls

Description of the display unit's keys, knobs, and cursorpad.

How to Turn the Radar On/Off and Transmit

Steps for powering the radar on/off and initiating transmission.

Tuning

Procedures for manual tuning to optimize radar performance.

How to Reduce the Sea Clutter

Methods to minimize sea clutter interference for clearer target detection.

How to Reduce the Rain Clutter

Methods to minimize rain clutter interference for clearer target detection.

Interference Rejector

How to activate the interference rejector to reduce radar interference.

How to Measure the Range to a Target

Methods for measuring the distance to a detected target.

How to Measure the Bearing to a Target

Using the Electronic Bearing Line (EBL) to measure target bearing.

Target Alarm

How to Off-center the Display

Zoom

Sector Blank

HOW TO INTERPRET THE RADAR DISPLAY

Minimum and maximum ranges

Radar resolution

SART (Search and Rescue Transponder)

RACON

TT OPERATION

Precautions for Use

Controls for Use with TT

How to Acquire and Track the Targets

AIS OPERATION

Controls for Use with AIS

CPA/TCPA Alarm

Proximity Alarm

GPS OPERATION

MAINTENANCE, TROUBLESHOOTING

Preventive Maintenance

Fuse Replacement

Simple Troubleshooting

Advanced-level Troubleshooting

Diagnostic Test

SPECIFICATIONS OF MARINE RADAR MODEL1815