Furuno 1946C, 1945C User Manual

SAFETY INSTRUCTIONS

WARNING
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
Turn off the radar power switch before servicing the antenna unit. Post a warn­ing sign near the switch indicating it should not be turned on while the antenna unit is being serviced.
Prevent the potential risk of being struck by the rotating antenna and exposure to RF radiation hazard.
Wear a safety belt and hard hat when working on the antenna unit.
Serious injury or death can result if someone falls from the radar antenna mast.
Do not disassemble or modify the equipment.
Fire, electrical shock or serious injury can result.
Turn off the power immediately if water leaks into the equipment or the equip­ment is emitting smoke or fire.
Continued use of the equipment can cause fire or electrical shock.
Use the proper fuse.
Fuse rating is shown on the power cable. Use of a wrong fuse can result in damage to the equipment.
Keep heater away from equipment.
Heat can alter equipment shape and melt the power cord, which can cause fire or electrical shock.
WARNING
Radio Frequency Radiation Hazard
The radar antenna emits electromagnetic radio frequency (RF) energy which can be harmful, particularly to your eyes. Never look directly into the antenna aperture from a close distance while the radar is in operation or expose yourself to the trans­mitting antenna at a close distance.
Distances at which RF radiation levels of 100 and 10 W/m table below.
Note: If the antenna unit is installed at a close distance in front of the wheel house, your administration may require halt of transmission within a certain sector of antenna revolution. This is possible - Ask your FURUNO representative or dealer to provide this feature.
MODEL
MODEL 1824C
MODEL 1834C
MODEL 1934C
MODEL 1944C
XN-12A
MODEL 1954C
XN-13A XN-12A
MODEL 1964C
XN-13A
Warning Label
A warning label is attached to the equipment. Do not remove the label. If the label is missing or damaged, contact a FURUNO agent or dealer.
WARNING
To avoid electrical shock, do not remove cover. No user-serviceable parts inside.
2
exist are given in the
Distance to
100 W/m
point
Nil
Nil
Worst case
0.20 m
Nil
Nil
0.80 m
0.60 m
Distance to
2
10 W/m
point
Worst case
0.50 m
Worst case
1.80 m
Worst case
3.00 m
Worst case
2.50 m
Worst case 2.50 m Worst case 2.30 m
Worst case 9.50 m Worst case 8.00 m
Name: Warning Label (1) Type: 86-003-1011-0 Code No.: 100-236-230
2
i

TABLE OF CONTENTS

2.7 Range Scale ......................................2-5
FOREWORD..............................................vi
A Word to the Owner of the Model 18x4C/19x4C Series Marine Radar, GD-1920C
Color Video Plotter ....................................... vi
Features ...................................................... vi
Notice .........................................................vii
SYSTEM CONFIGURATIONS..................viii
1. OPERATIONAL OVERVIEW............... 1-1
1.1 Operating Controls............................. 1-1
Display unit controls ................ 1-1
1.1.1
1.1.2 Remote controller.................... 1-3
1.2 Inserting a Chart Card........................1-4
1.3 Turning the Unit On/Off ......................1-5
1.4 Display Brilliance, Panel Brilliance, Hue ..
....................................................... 1-6
Display brilliance, panel brilliance .
1.4.1
........................................... 1-6
1.4.2 Hue......................................... 1-7
1.5 Selecting a Display.............................1-8
Display modes ........................ 1-8
1.5.1
1.5.2 Selecting a display .................. 1-9
1.5.3 Switching control in combination
and overlay screens ..............1-10
1.5.4 Selecting image source ......... 1-11
1.6 Trackball, Cursor.............................. 1-12
1.7 Entering the MOB Mark, Setting MOB as
Destination....................................... 1-13
1.8 Data Boxes...................................... 1-14
Showing, hiding data boxes with
1.8.1
soft key ................................. 1-14
1.8.2 Rearranging data boxes ........ 1-14
1.8.3 Temporarily erasing a data box.....
......................................... 1-14
1.9 Function Keys.................................. 1-15
1.10 Simulation Display ........................... 1-16
2. RADAR OPERATION ......................... 2-1
2.1 Radar Display ....................................2-1
2.2 Transmitting, Stand-by .......................2-1
2.3 Tuning................................................2-2
2.4 Adjusting the Gain..............................2-2
2.5 Reducing Sea Clutter ......................... 2-3
2.5.1
How the A/C SEA works .......... 2-3
2.5.2 Adjusting the A/C SEA.............2-4
2.6 Reducing Precipitation Clutter ............ 2-4
Adjusting the A/C RAIN ........... 2-4
2.6.1
2.8 Pulselength ........................................ 2-5
2.9 Presentation Mode.............................2-6
2.10 Measuring the Range ......................... 2-8
2.11 Measuring the Bearing..................... 2-10
2.12 Erasing the Heading Line, North Marker ..
..................................................... 2-11
2.13 Reducing Noise Interference ............ 2-11
2.14 Rejecting Radar Interference............ 2-11
2.15 Zoom ............................................... 2-12
2.16 Shifting the Picture........................... 2-14
2.17 Using the Offset EBL........................ 2-15
2.18 Echo Trails....................................... 2-17
2.19 Echo Stretch .................................... 2-19
2.20 Echo Averaging................................ 2-20
2.21 Outputting TLL Data......................... 2-21
2.22 Guard Alarm.....................................2-22
2.23 Watchman........................................2-23
2.9.1
Selecting a presentation mode 2-6
2.9.2 Description of presentation modes
........................................... 2-7
Measuring range by range rings ...
2.10.1
........................................... 2-8
2.10.2 Measuring range by cursor ...... 2-8
2.10.3 Measuring range by VRM ........2-9
2.10.4 Various VRM operations .......... 2-9
Measuring bearing by cursor .2-10
2.11.1
2.11.2 Measuring bearing by EBL ....2-10
2.11.3 Various EBL operations.......... 2-10
Zooming radar targets ...........2-12
2.15.1
2.15.2 Zooming ARP, TTM targets.... 2-13
Manual shift...........................2-14
2.16.1
2.16.2 Automatic shift.......................2-14
Predicting collision course ..... 2-15
2.17.1
2.17.2 Measuring range & bearing
between two targets ..............2-16
Trail time ............................... 2-17
2.18.1
2.18.2 Starting echo trails.................2-18
2.18.3 Trail gradation .......................2-18
2.18.4 Trail color.............................. 2-18
2.18.5 Echo trail mode ..................... 2-19
2.22.1
Setting a guard alarm zone.... 2-22
2.22.2 When the alarm is violated…. 2-23
2.22.3 Cancelling the guard alarm.... 2-23
How watchman works............2-23
2.23.1
2.23.2 Turning on/off watchman ....... 2-23
ii
2.23.3 Setting watchman stand-by
interval .................................. 2-24
2.24 Suppressing Second-trace Echoes... 2-24
2.25 Waypoint Marker.............................. 2-25
2.26 ARP, TTM Operation........................ 2-26
2.26.1
Activating/deactivating ARP, TTM .
......................................... 2-27
2.26.2 Acquiring and tracking targets
(ARP).................................... 2-27
2.26.3 Displaying target number (ARP,
TTM)..................................... 2-29
2.26.4 Terminating tracking of ARP
targets................................... 2-29
2.26.5 Setting vector attributes (ARP)2-30
2.26.6 Displaying past position (ARP)2-31
2.26.7 ARP, TTM target data............ 2-31
2.26.8 CPA/TCPA alarm (ARP).........2-32
2.26.9 Lost target alarm (ARP)......... 2-33
2.26.10 Showing, hiding ARP target
tracks....................................2-33
2.27 Interpreting the Radar Display .......... 2-34
False echoes......................... 2-34
2.27.1
2.27.2 SART (Search and Rescue
Transponder).........................2-35
2.27.3 Racon (Radar Beacon) .......... 2-36
3. PLOTTER OPERATION ......................3-1
3.1 Plotter Displays..................................3-1
Full-screen plotter display........ 3-1
3.1.1
3.1.2 Nav graphic display................. 3-3
3.1.3 Highway display ......................3-6
3.1.4 Nav data display......................3-7
3.2 Presentation Mode.............................3-8
3.3 Shifting the Display ............................ 3-9
3.4 Chart Scale........................................3-9
3.5 Chart Cards ....................................... 3-9
Chart card overview ................3-9
3.5.1
3.5.2 Indices and chart enlargement3-10
3.5.3 Navionics charts.................... 3-11
3.5.4 C-MAP charts........................ 3-14
3.6 Working with Track........................... 3-18
Displaying track..................... 3-18
3.6.1
3.6.2 Stopping, restarting plotting of own
ship track .............................. 3-19
3.6.3 Changing track color .............3-19
3.6.4 Track plotting method and interval
for own ship track.................. 3-20
3.6.5 Changing own ship track/mark
distribution setting ................. 3-21
3.6.6 Erasing track......................... 3-22
3.7 Marks, Lines.....................................3-23
Entering a mark, line..............3-23
3.7.1
3.7.2 Changing mark attributes....... 3-24
3.7.3 Selecting line type................. 3-24
3.7.4 Erasing marks, lines..............3-25
3.8 Waypoints........................................ 3-26
3.9 Routes ............................................. 3-33
3.10 Navigation........................................ 3-39
3.11 Alarms ............................................. 3-47
3.12 Resetting Trip Distance .................... 3-55
Entering waypoints ................ 3-26
3.8.1
3.8.2 Editing waypoint data ............3-29
3.8.3 Erasing waypoints .................3-30
3.8.4 Changing waypoint mark size
(Navionics GOLD).................3-31
3.8.5 Searching waypoints .............3-32
Creating routes......................3-33
3.9.1
3.9.2 Connecting routes ................. 3-36
3.9.3 Inserting waypoints................ 3-37
3.9.4 Removing waypoints from a route.
......................................... 3-38
3.9.5 Erasing routes....................... 3-39
Navigating to a “quick point” ..3-39
3.10.1
3.10.2 Navigating to waypoints.........3-40
3.10.3 Navigating to ports, port services
(NavChart
3.10.4 Following a route................... 3-43
3.10.5 Canceling route navigation .... 3-46
Audio alarm on/off ................. 3-47
3.11.1
3.11.2 Arrival alarm.......................... 3-48
3.11.3 Anchor watch alarm...............3-49
3.11.4 XTE (Cross-Track Error) alarm .....
......................................... 3-50
3.11.5 Speed alarm..........................3-50
3.11.6 Proximity alarm .....................3-51
3.11.7 Trip alarm..............................3-51
3.11.8 Grounding alarm (C-MAP
specification).........................3-52
3.11.9 Alarm information .................. 3-53
TM
only)..................3-41
4. VIDEO SOUNDER OPERATION......... 4-1
4.1 Sounder Displays ............................... 4-1
Selecting a sounder display .....4-1
4.1.1
4.1.2 Description of sounder displays4-2
4.1.3 Selecting screen split method in
4.2 Automatic Sounder Operation ............4-6
combination displays...............4-6
iii
v
4.2.1 How the automatic sounder works
........................................... 4-6
4.2.2 Types of automatic sounder
modes..................................... 4-6
4.2.3 How to enable automatic sounder
operation................................. 4-7
4.3 Manual Sounder Operation ................4-7
Selecting the manual mode .....4-7
4.3.1
4.3.2 Selecting display range ...........4-7
4.3.3 Adjusting the gain....................4-8
4.3.4 Shifting the range .................... 4-8
4.4 Measuring Depth, Time...................... 4-9
4.5 Reducing Interference........................ 4-9
4.6 Reducing Low Level Noise ............... 4-10
4.7 Erasing Weak Echoes ...................... 4-11
4.8 White Marker ................................... 4-12
4.9 Picture Advance Speed .................... 4-12
4.9.1
Advancement independent of
ship’s speed.......................... 4-12
4.9.2 Advancement synchronized with
ship’s speed.......................... 4-13
4.10 Display Colors..................................4-14
4.11 Alarms ............................................. 4-15
4.11.1
Audio alarm on/off ................. 4-15
4.11.2 Bottom alarm.........................4-16
4.11.3 Fish alarm............................. 4-16
4.11.4 Fish alarm (B/L).....................4-17
4.11.5 Water temperature alarm....... 4-17
4.11.6 When an alarm setting is violated...
......................................... 4-18
4.12 Water Temperature Graph................ 4-19
4.13 Changing Pulse Repetition Rate....... 4-19
4.14 Saving Sounder Picture to an SD Card....
..................................................... 4-19
4.15 Interpreting the Sounder Display ......4-20
4.15.1
Zero line................................ 4-20
4.15.2 Bottom echo.......................... 4-20
4.15.3 Fish school echoes ............... 4-21
4.15.4 Surface noise/Aeration .......... 4-21
5. AIS OPERATION
5.1 Turning AIS Feature On/Off ................ 5-1
5.2 AIS Symbols ...................................... 5-3
5.3 Setting Number of AIS Targets to Display
.......................................................5-3
5.4 Activating Targets...............................5-4
5.5 Displaying Target Data ....................... 5-4
5.6 Lost Target......................................... 5-5
5.7 Setting CPA and TCPA....................... 5-5
5.8 Proximity Alarm.................................. 5-6
5.9 Showing, Hiding AIS Target Tracks..... 5-7
5.10 Choosing Vector Time........................ 5-7
5.11 Displaying Past Positions of AIS Targets..
.......................................................5-8
6. DATA TRANSFER...............................6-1
6.1 Memory Card Operations ................... 6-1
Deleting all data (other than chart
6.1.1
data) from memory cards.........6-1
6.1.2 Saving data to a memory card . 6-2
6.1.3 Playing back data from a memory
card.........................................6-3
6.2 Uploading, Downloading Data ............ 6-4
Setting communication software
6.2.1
on the PC................................ 6-4
6.2.2 Uploading or downloading data ....
........................................... 6-4
6.3 Loading Waypoint Data from Yeoman. 6-7
6.4 Receiving Data Via Network Equipment ..
.......................................................6-8
6.5 Outputting Data Through the Network. 6-9
7. CUSTOMI ZIN G Y OU R UNIT................7-1
7.1 General Setup.................................... 7-1
7.2 Radar Setup....................................... 7-4
7.2.1
Radar display setup................. 7-4
7.2.2 Radar range setup................... 7-7
7.2.3 Function key setup.................. 7-8
7.3 Plotter Setup....................................7-10
Navigation options.................7-10
7.3.1
7.3.2 Function key setup................ 7-11
7.4 Chart Setup......................................7-13
Chart offset ........................... 7-13
7.4.1
7.4.2 Navionics GOLD chart attributes...
......................................... 7-14
7.4.3 C-MAP chart attributes .......... 7-15
7.5 Data Boxes Setup ............................ 7-21
7.6 Hot Page Setup................................ 7-22
7.7 Navigator Setup ............................... 7-23
Navigation data source.......... 7-23
7.7.1
7.7.2 GPS receiver setup (Set equipped
with GP-310B/320B).............. 7-25
7.7.3 TD display setup ................... 7-28
7.8 Nav Data Display Setup ................... 7-30
7.9 Sounder Setup ................................. 7-31
System setup ........................ 7-31
7.9.1
7.9.2 Sensor setup......................... 7-34
7.9.3 Sounding range, zoom range,
bottom lock range..................7-35
7.9.4 Function key setup................ 7-36
7.10 Nav Graphic Display Setup ..............7-38
i
v
8. MAINTENANCE, TROUBLESHOOTING .
.....................................................8-1
8.1 Preventive Maintenance..................... 8-1
8.2 Replacement of Batteries................... 8-2
8.3 Replacement of Fuse.........................8-2
8.4 Replacing the Magnetron ...................8-3
8.5 Replacing the Synchro Belt (1824C only)
.......................................................8-3
8.6 Trackball Maintenance .......................8-3
8.7 Simple Troubleshooting......................8-4
8.7.1
General................................... 8-4
8.7.2 Radar...................................... 8-4
8.7.3 Plotter ..................................... 8-5
8.7.4 Sounder ..................................8-6
8.8 Diagnostics ........................................8-7
Memory I/O test.......................8-7
8.8.1
8.8.2 Test pattern ........................... 8-10
8.8.3 Keyboard, remote controller test ...
......................................... 8-11
8.9 GPS Status Display.......................... 8-12
8.10 Clearing Memories........................... 8-13
8.11 Error Messages................................8-14
APPENDIX............................................AP-1
Menu Overview ....................................... AP-1
Geodetic Chart List ............................... AP-10
Icons .................................................. AP-11
SPECIFICATIONS.................................SP-1
INDEX.................................................... IN-1

FOREWORD

A Word to the Owner of the Model 18x4C/19x4C Series Marine Radar, GD-1920C Color Video Plotter
FURUNO Electric Company thanks you for purchasing the Model 18x4C/19x4C Series Marine Radar, GD-1920C Color Video Plotter. We are confident you will discover why the FURUNO name has become synonymous with quality and reliability.
For over 50 years FURUNO Electric Company has enjoyed an enviable reputation for quality and reliability throughout the world. This dedication to excellence is furthered by our extensive global network of agents and dealers.
Your equipment is designed and constructed to meet the rigorous demands of the marine environment. However, no machine can perform its intended function unless properly installed and maintained. Please carefully read and follow the operation and maintenance procedures set forth in this manual.
We would appreciate feedback from you, the end-user, about whether we are achieving our purposes.
Thank you for considering and purchasing FURUNO.
Features
The 18x4C/19x4C Radar Series and the GD-1920C Video Plotter work within our network system called the “NavNet.” Each product has an IP address to communicate with NavNet compatible products within the network, using TCP/IP protocol through an Ethernet 10BASE-T network.
The main features are as follows:
This Navnet series consists of the following models:
Model Output Range
Marine Radar Model 1824C 2.2 kW 24 nm
Marine Radar Model 1834C 4 kW 36 nm 60 cm, radome, 24 rpm
Marine Radar Model 1934C 4 kW 48 nm 3.5 ft, open, 24 rpm
Marine Radar Model 1944C 6 kW 64 nm 4 ft, open, 24 rpm
Marine Radar Model 1954C 12 kW
72 nm
Marine Radar Model 1964C 25 kW
Radar antenna size, type,
rotation speed
46 cm, radome, 24/30 rpm (auto-switching)
4/6 ft, open, 24 rpm (4 or 6 ft), 48 rpm (4 ft only)
Color Video Plotter GD-1920C
vi
Bright 10.4” screen visible even under direct sunlight.
User friendly operation with combination of discrete keys, soft keys, alphanumeric keys
and Trackball.
Accepts the following SD chart cards: NAVIONICS GOLD or C-MAP NT
depending on specification. All names mentioned above are registered trademarks of their respective companies.
+
/NT MAX charts,
Fast chart redraw.
Built-in NavNet interface circuit board.
Video input (video recorder, CCD device, etc.) available with installation of optional PIP
Board.
12-channel GPS Receiver GP-310B with highly accurate position fixing optionally
available, GP-320B with WAAS capability.
User programmable function keys.
Video sounder picture available with connection of the optional Network Sounder
ETR-6/10N or ETR-30N.
The optional facsimile receiver FAX-30 receives facsimile pictures and navtex messages
transmitted from facsimile and navtex stations.
Notice
No part of this manual may be copied or reproduced without written permission.
If this manual is lost or worn, contact your dealer about replacement.
The contents of this manual and equipment specifications are subject to change without
notice.
The example screens (or illustrations) shown in this manual may not match the screens
you see on your display. The screen you see depends on your system configuration and equipment settings.
This manual is intended for use by native speakers of English.
FURUNO will assume no responsibility for the damage caused by improper use or
modification of the equipment or claims of loss of profit by a third party.
vii

SYSTEM CONFIGURATIONS

All NavNet products incorporate a “network circuit board” to integrate each NavNet product on board through an optional LAN cable (Ethernet 10BASE-T). Each NavNet product is assigned an IP address to enable transfer of images between other NavNet products. For example, video plotter pictures can be transferred to a radar and vice versa. Pictures received via the NavNet may be adjusted at the receiving end.
The number of display units which may be installed depends on the number of network sounder connected. For a system incorporating three or more products, a “hub” is required to process data.
For one network sounder: one radar and three plotters, or four plotters For two network sounder: one radar and two plotters, or four plotters
Note: NavNet2 equipment cannot be connected to initial version NavNet equipment.
NavNet system (Model 18 24C/1834C/ 1934C/1944C/1954C/1964C)
MODEL
1964C
AIS transponder
Antenna Unit
MODEL
1954C
AIS Interface IF-1500AIS*
* Not required for AIS Transponder FA-150
MODEL
1934C
Power Supply Unit
PSU-005
(MODEL 1954C)
Power Supply Unit
PSU-008
(MODEL 1964C)
ARPA
ARP-11
(Built-in)
Rectifier
RU-3423
MODEL
1944C
MODEL
1834C
Display unit
RDP-149
Facsimile
Receiver
FAX-30
MODEL1824C
GPS receiver
GP-310B/320B
Echo sounder Navigator
External buzzer PC
VGA monitor Remote display Video equipment
Heading sensor
viii
12 - 24 VDC*
Network
Sounder
ETR-6/10N
ETR-30N
Other NavNet unit
(GD-1920C, etc.)
: Standard : Option : Local supply
100/110/115/220/230 VAC 1φ, 50/60 Hz*
*: The power for the power supply unit and display unit must be drawn from the same power source.
NavNet system (Model 1824C/18 34C/1934C/1944C/1954C/1964C)
Singl e- unit NavNet system (GD-1920C)
* Not required for AIS Transponder FA-150
GPS receiver
GP-310B/320B
External buzzer
AIS transponder
Other NavNet Unit
(Model 1834C, etc.)
Facsimile
Receiver
FAX-30
AIS Interface IF-1500AIS*
Remote Controller RMC-100
Display unit
RDP-149
Network
Sounder
ETR-6/10N
ETR-30N
VGA monitor Remote display PC Video equipment
ARPA
ARP-11
Echo sounder Navigator
Rectifier
PR-62
12 - 24 VDC
: Standard : Option : Local supply
100/110/115/220/230 VAC 1φ, 50/60 Hz
Single-unit NavNet system (GD-1920C)
ix
Two-unit NavNet system
Radar Antenna Unit
OR
GPS Receiver GP-310B/320B
RADAR
or
PLOTTER
Radar, plotter data
Radar, plotter data
Radar Antenna Unit
GPS Receiver GP-310B/320B
Two-unit NavNet system
Three-or-more-unit NavNet system (Max. 4 display units)
Radar Antenna Unit
OR
GPS Receiver GP-310B/320B
Radar Antenna Unit
GPS Receiver GP-310B/320B
OR
RADAR
or
PLOTTER
OR
Sounder data
Network Sounder
ETR-6/10N
ETR-30N
(option)
RADAR
PLOTTER
Radar data
Facsimile data
or
HUB
Facsimile
Receiver
FAX-30
(option)
Plotter data
Sounder data
Note: The picture disappears 10 seconds after the NavNet cable is disconnected from a "sub" NavNet display unit.
Network Sounder
ETR-6/10N
ETR-30N
(option)
RADAR
or
PLOTTER
Three-or-more-unit NavNet system
x

1. OPERATIONAL OVERVIEW

This chapter provides the basic information needed to get you started using your radar, video plotter.

1.1 Operating Controls

1.1.1 Display unit controls
Display unit controls
The radar, video plotter, sounder and chart systems are operated with the controls of the display unit (and the remote controller). Ten keys are labeled and they provide the function shown on their labels. The five soft keys provide various functions according to current
operating mode. The ENTER knob mainly functions to register selections on the menu and adjust the EBL, VRM and gain. The Trackball’s main function is to move the cursor across
the screen. When you correctly execute an operation, the unit generates a beep. Invalid operation causes the unit to emit three beeps.
Displays the mode selection window.
Momentary press:
Registers own ship's position as a waypoint.
Press three seconds:
Marks man overboard position.
Soft keys
Shows or hides the soft keys, function keys, nav data alternately.
Trackball*
Shifts cursor EBL/VRM and cursor; selects menu items and options.
Opens/closes the alarm menu. Clears data; erases selected mark.
Opens/closes the main menu. Selects a range.
ENTER knob Push: Registers setting.
ABC
STU
VRM
DEF
MNO
VWX
GHI
2
3
PQR
5
6
YZ&
8
9
_'#
GAIN
0
1
JKL
4
7
EBL
Rotate: Adjusts, gain, VRM, EBL, etc.; selects menu items and options. May also be used to enter alphanumeric data.
Enter alphanumeric data.
Radar: Displays the soft keys for adjustment of gain, A/C SEA and A/C RAIN (FTC in case the the radar source is MODEL 17x4 series).
Sounder: Adjusts gain. Long press: Turns power off.
Momentary press: Turns the power on;
opens the display for adjustment of brilliance and hue; shows RADAR STBY/TX soft key.
Chart drive
Displays soft keys for EBL/VRM.
*: When it has been some time since the trackball was last operated, the cursor may not track the movement of the trackball. In this case, move the trackball rapidly and then finely.
1-1
1. OPERATIONAL OVERVIEW
Soft keys
The function of the five soft keys changes according to the operation. Their labels for their current functions are shown on the screen to the left of the keys. To hide or show the soft
keys, press the HIDE/SHOW key. Each press of the key shows preset soft keys, user
function keys or turns off navigation information (at the top of the screen).
SOFT KEYS
Display unit
Some soft keys show the current setting of a soft key in reverse video as shown below.
3nm
12/
LP
H-UP
°
M
319. 9
TRAIL
TRAIL ON /OFF
TRAIL TIME
GRAD
SINGLE
TRAIL COLOR
RETURN
359.9 ˚R
+
11.70
Current option shown in reverse video
Radar Display
nm
34° 22. 3456'N 359.9°M 080° 22. 3456'E
16.0nm
WP-002
FISH
BRIDGE
Plotter Display
19.9 kt 99.9 nm
TRIP
MARK ENTRY
MODE
NTH UP
NAV
D. BOX ON/OFF
NU
POS
Radar and plot ter display s
1-2

1.1.2 Remote controller

ABC
RANGE
1
DISP
DEF
Operating distance 90°: Up to 5 m ±45°: Up to 3 m
SAVE
Replace the batteries (AA) when the
MOB
distance from which the display unit can be operated shortens.
32
GHI
1. OPERATIONAL OVERVIEW
JKL
4
MNO
Note: The remote controller may
65
PQR
become damaged if dropped. Mishandling of the remote
STU
7
VWX
98
YZ&
controller is not covered by the warranty.
0
MENU
TX / STBY
ALARM
SK4 SK5
GAIN
CENTER
CNTL
ACQ
HIDE / SHOW
EBL / VRM
MARK ENT
BRILL
WPT
'#
ENT
CLEAR
TONE
SK3SK1 SK2
Remote controller
.
Key Function Key Function
RANGE
Same as RANGE key on
ENT
display unit.
DISP
Same as DISP key on
CLEAR
display unit.
SAVE MOB
Same as SAVE/MOB key on
MENU
display unit.
Ten keys Enter alphanumerics. BRILL Adjusts display brilliance.
EBL/VRM
Same as EBL/VRM key on
TONE Not used.
display unit.
GAIN
Same as GAIN key on
TX/STBY
display unit.
WPT
Displays “alphabet” WPT list
ACQ
on plotter display.
MARK ENT
Same as MARK ENTRY soft
ALARM
key.
CENTER
Returns own ship to screen
HIDE/SHOW
center on plotter display.
CNTL
Switches control between displays on combination
SK1 – SK5 (soft keys)
displays.
Same as ENTER knob on
display unit.
Same as CLEAR key on display unit.
Same as MENU key on display unit.
Toggles radar between standby and transmit.
Acquires radar target. (Requires radar source equipped with ARP.)
Same as ALARM key on the display unit.
Same as HIDE/SHOW key on display unit.
Same as soft keys on display unit.
1-3
1. OPERATIONAL OVERVIEW

1.2 Inserting a Chart Card

Your unit reads SD cards, in the following formats: Navionics GOLD Chart cards or C-MAP
+
/NT MAX chart cards, depending on the type of display unit you have. Insert the
NT appropriate chart card for your area as follows:
1. Open the chart drive.
Chart drive
Display unit
2. Insert chart card label side up prior to turning on the power.
3. Close the lid.
To remove chart card, follow the steps shown below.
1. Press the MENU key to show the menu.
2. Press the SHOW/HIDE soft key.
3. Open the chart drive lid, and then push the card once and then pull it out.
Note 1: Do not remove a card while the chart is being drawn. This may cause the
equipment to freeze.
Note 2: Do not insert or remove a card while the power is on. This may cause the equipment to freeze.
Note 3: For multiple display units, do not use the same chart card type in more than one
display unit.
Note 4: Remove the card with care; rough handling can damage the card and destroy its
contents.
1-4
1. OPERATIONAL OVERVIEW

1.3 Turning the Unit On/Off

Press the POWER/BRILL key to turn the unit on. A beep sounds and then the equipment
shows the startup NavNet screen (about 20 seconds), the product information screen, startup test results and chart usage disclaimer. During this period the equipment is inoperative. The startup test checks the ROM, RAM, internal battery and backup data for proper operation, displaying the results for each as OK or NG (No Good). If NG appears an appropriate message appears on the screen. For any NG, try to press any key to go to the chart disclaimer screen, then perform the diagnostic test as shown in the paragraph “8.8 Diagnostics.”
For start up with t he radar display, the magnetron takes from one minute and thirty
seconds to three minutes (depending on radar model) to warm up before the radar can be operated. The time remaining for warming up of the magnetron is counted down at the
center of the display.
You may press any key at the chart disclaimer screen to show the last-used display, or wait several seconds to let the equipment do it for you.
To turn the unit off, press and hold down the POWER/BRILL key until the screen goes off
(approx. 3 sec.). To protect the LCD attach the hard cover. Note that the network sounder will be turned off approx. three minutes after turning off the power. This is due to the system’s electrical characteristics.
Note: The first time you turn on the power (or any time the power is applied after a memory
reset), you are asked if you want to start the simulation mode, which provides simulated
operation of the equipment after the installation mode selection. Push the ENTER knob to start the simulation mode, or press the CLEAR key to start normal operation. For further
details about the simulation mode, see the paragraph “1.10 Simulation Display.”
1-5
1. OPERATIONAL OVERVIEW

1.4 Display Brilliance, Panel Brilliance, Hue

You can adjust display brilliance, panel brilliance and hue as shown below.

1.4.1 Displa y bril lia nc e, panel brillian ce

1. Press the POWER/BRILL key momentarily. A set of soft keys for adjustment of
brilliance and hue appear.
Active soft key is highlighted.
3nm
12/
LP
H-UP
°
319. 9
M
BRILL CONTST
DISPLY BRILL
34° 22. 3456'N 359.9°M TRIP NU 080° 22. 3456'E
19.9 kt 99.9 nm
16.0nm
BRILL CONTST
DISPLY BRILL
DISPLAY BRILLIANCE
8
Radar Display
PANEL BRILL
HUE
RADAR
STBY
RETURN
359.9 ˚R
+
nm
11.70
WP-002
FISH
DISPLAY BRILLIANCE
BRIDGE
Plotter Display
8
PANEL BRILL
HUE
RADAR
STBY
RETURN
Brillianc e adjustment soft key s
2. Press the DISPLY BRILL or PANEL BRILL soft key as appropriate. An adjustment window appears at the bottom of the screen. This window shows the name of the item selected for adjustment plus current brilliance level, by bar graph.
DISPLAY BRILLIANCE
8
Display brilliance Panel brilliance
PANEL BRILLIANCE
8
Display bri lliance and p anel brilliance wi ndows
3. Adjust the ENTER knob, clockwise to raise the setting or counterclockwise to decrease
it. You may also use the soft key pressed at step 2. Eight levels of display brilliance and panel brilliance are available.
4. Hit the RETURN soft key to finish.
Note 1: If the unit is turned off with minimum brilliance, the screen will be dark at the next power-up. Press the POWER/BRILL key consecutively to adjust the brilliance.
Note 2: This equipment does not have a contrast control.
1-6
1. OPERATIONAL OVERVIEW

1.4.2 Hue

You may select the colors for the radar and plotter displays as below.
1. Press the POWER/BRILL key momentarily.
2. Press the HUE soft key to show the hue setting window.
HUE
¡
DAY
¡
NIGHT
¡
TWILIGHT
¤
MANUAL SET
Hue window
3. Operate the Trackball to select hue desired, referring to the table below. MANUAL SET follows the color settings on the CHART DETAILS menu for the plotter and the RADAR DISPLAY SETUP menu for the radar.
Night Day Twilight
Characters Red Black Green
Radar ring Red Green Green
Radar echo Orange Multi Yellow
Background Black White Blue
Landmass (plotter) Orange* Light-orange* Orange*
* = Beige and light-beige on C-MAP display unit.
4. Hit the RETURN soft key to finish.
Note: When using the overlay screen, the own ship track will be hidden if the radar background and own ship track are blue and the “MANUAL SET” hue setting is used. In this case, set HUE to other position and then return to “MANUAL” to show the own ship track in black.
1-7
1. OPERATIONAL OVERVIEW

1.5 Selecting a Display

1.5.1 Display modes

If you have a radar, navigator, network sounder and external video source (video recorder, etc., optional PIP board required) six full-screen displays are available: radar, plotter, echo sounder, nav data, overlay, and external video. In addition to the full-screen display, you can divide the screen into halves and thirds to show two and three sets of images on a combination display.
Full screen Combination screen Overlay screen (radar) (radar + plotter)
(plotter + radar only, requires L/L data)
Display screens
The table below shows the displays available with each screen type.
Screen type a nd available display scr een
Full screen Combination screen options
(half- or thirds-screen)
Plotter, radar, sounder, nav data, external video, overlay
Plotter, radar, sounder, compass (or wind), highway, compass (or wind)/highway, nav data, overlay, external video
Overlay screen options
Radar + plotter
1-8
1. OPERATIONAL OVERVIEW

1.5.2 Selecting a display

1. Press the DISP key to show the display screen selection window. The icons of modes
not available are shaded. HOTPAGE 1-HOTPAGE 6 are user-arrangeable displays called “hot pages,” which you can configure as you like. For further details, see the paragraph “7.6 Hot Page Setup.”
Selected item
RADAR PLOTTER SOUNDER NAV DATA OVERLAY EXT VIDEO WX FAX
HOTPAGE 1 HOTPAGE 2 HOTPAGE 3 HOTPAGE 4 HOTPAGE 5 HOTPAGE 6
· TURN KNOB TO SELECT MODE AND PUSH KNOB TO ENTER.
· PUSH ANY SOFT KEY TO SELECT IMAGE SOURCE.
Basic display screens
Hot pages
Display screen selection window
Note: “WX FAX” is available only when the facsimile receiver FAX-30 is connected. If
the message “AUX SOURCE IS DISCONNECTED. PUSH ENT KNOB TO EXIT.”
appears, press the ENTER knob and select other item.
2. Rotate the ENTER knob to select a basic display screen or a hot page screen.
3. Push the ENTER knob.
4. If you select a basic display screen, a group of appropriate combination displays appear.
In the example below, the radar combination screens are shown. When WX FAX is selected at step 2, a combination display does not appear.
PUSH ENTER KNOB.
RETURN
Radar combination screen selection window
5. Rotate the ENTER knob to select display desired.
6. Push the ENTER knob to finish.
1-9
1. OPERATIONAL OVERVIEW

1.5 .3 Sw itch ing control in combination and over lay screens

A soft key is provided in relevant combination and overlay screens to switch control between displays. In the example below, the CNTRL PLOTTR and CNTRL SNDR soft keys enable switching control between the plotter and sounder screens in the plotter/sounder combination display.
34° 22. 3456’N 359.9°M TRIP NU 080° 22. 3456’E
16.0nm
WP-002
19.9 kt 99.9 nm
FISH
Plotter display selected
CNTRL
PLOTTR
To adjust sounder
34° 22. 3456’N 359.9°M TRIP NU
080° 22. 3456’E
16.0nm
19.9 kt 99.9 nm
97
50k
40.0
40.0
0’33"
0’33"
0
MARK ENTRY
MODE
50
NTH UP
NAV
POS
100
CNTRL
150
PLOTTR
200
CNTRL
SNDR
To adjust plotter
0
SHIFT
50
MODE
FREQ
100
LF/HF
DISPLAY MODE
150
CNTRL
SNDR
97
WP-002
FISH
Sounder display selected
50k
200
How to swi t c h c ontrol between modes in the plotter/sounder c ombination display
1-10
1. OPERATIONAL OVERVIEW

1.5.4 Selecting image source

When more than one network radar or network sounder is connected to the equipment, you may select an image source for each as shown below. This is not necessary when only one network radar or network sounder is connected.
1. Press the DISP key.
2. Press any soft key to show the following display.
RADAR SOURCE1 (HOST NAME: NAVNET1) SOUNDER SOURCE AUX SOURCE AUX 1 (HOST NAME: WXFAX) IP ADDRESS 172.031.003.003 DEVICE NUMBER 1 (HOST NAME: NAVNET-1)
ETR1 (HOST NAME: SOUNDER)
IF THERE IS MORE THAN ONE NETWORK RADAR OR ECHO SOUNDER, YOU MAY SELECT THE IMAGE SOURCES FOR DISPLAY.
SELECT SOURCE
EDIT
RETURN
Select source menu
3. Use the Trackball to select RADAR SOURCE, SOUNDER SOURCE or AUX SOURCE
as appropriate, then press the EDIT key.
RADAR SOURCE
¤
1 (NAVNET1)
¡
2 (NAVNET2)
¡
3 (NAVNET3)
¡
4 (NAVNET4)
Radar source
SOUNDER SOURCE
¤
ETR0 (SOUNDER)
¡
ETR1 (SOUNDER1)
¡
ETR2 (SOUNDER2)
¡
ETR3 (SOUNDER3)
¡
ETR4 (SOUNDER4)
¡
ETR5 (SOUNDER5)
¡
ETR6 (SOUNDER6)
¡
ETR7 (SOUNDER7)
¡
ETR8 (SOUNDER8)
¡
ETR9 (SOUNDER9)
AUX SOURCE
¤
AUX1 (WXFAX)
¡
AUX2 (WXFAX1)
¡
AUX3 (WXFAX2)
¡
AUX4 (WXFAX3)
Aux source
Sounder source
Radar source and sounder source windows
4. Use the Trackball to choose source.
5. Push the ENTER knob to set.
6. Press the DISP key to finish.
7. Turn the power off and on again.
1-11
1. OPERATIONAL OVERVIEW

1.6 Trackball, Cursor

The Trackball functions to shift the cursor, for measurement of range and bearing to a location (radar) and latitude and longitude position (plotter). Roll the Trackball to shift the cursor. The cursor moves in the direction of Trackball rotation.
Cursor
3nm LP
12/ H-UP
°
319. 9
M
SIGNAL PROC.
RADAR DISPLY
NAV FUNC
TARGET
ZOOM & D. BOX
Cursor data L/L position, Range and bearing from own ship to cursor
Cursor
Radar Display
34° 22. 3456'N 272.4°M
+
080° 22. 3456'E
15.9 nm 99.9 nm
16.0nm
WP-002
FISH
BRIDGE
359.9 ˚R
+
nm
11.70
Cursor Data Bearing from own ship to cursor Range from own ship to cursor
TRIP
NU
MARK
ENTRY
MODE
NTH UP
CENTER
GO TO CURSOR
D. BOX ON/OFF
1-12
Plotter Display
Cursor, cursor data
1. OPERATIONAL OVERVIEW
1.7 Entering the MOB Mark, Setting MOB as
Destination
The MOB mark functions to mark man overboard position. You can inscribe the mark from any mode except nav data, when playing back data or conducting any test. Note that this function requires position data.
Range, bearing
Note: The function of the SAVE/MOB
key depends on the setting of SAVE
Man overboard
Current
position
MOB KEY FUNCTION in the GENERAL SETUP menu. The description below shows the procedure using the default setting. For further details, see Save
MOB conc ept
MOB Key Function on page 7-2.
1. Press and hold down the SAVE/MOB key for about three seconds when someone falls
overboard. The display shows the waypoint number being saved (youngest empty waypoint number, 001-999) followed by the MOB confirmation window.
Time remaining is counted down while pressing the SAVE/MOB key.
MOB mark
M
162.5°
O
0.49 nm
B
MOB Data Box Bearing and range to MOB position
M
(MOB)
M
WAYPOINT SAVED!
XXXWPT CONTINUE PUSHING FOR MOB!
XXX = Waypoint number
CONTINUE PUSHING FOR MOB!
XX SEC
XX = Time remaining is counted down.
MAN OVER BOARD! GO TO MOB? YES ... PUSH ENTER KNOB NO ... PUSH CLEAR KEY
MOB mark messages
2. Push the ENTER knob to select the MOB position as the destination, or press the
CLEAR key to only mark current ship’s position as a waypoint. If you select the MOB
position as destination;
A full-screen radar, plotter or overlay appears depending on the display in use, with
the range set to 0.5 nm. Further, the waypoint marker appears on the radar display.
The MOB mark “MOB” appears at the MOB position and a blue line runs between it
and current position. This line shows the shortest course to the MOB position.
Range and bearing to the MOB position are shown in the MOB data box.
To erase an MOB mark from the plotter display, you must first erase its corresponding waypoint. Place the cursor on the MOB mark, then press the CLEAR key followed by pushing the ENTER knob to erase the waypoint. Then, repeat to erase the MOB mark.
Note: On the plotter display, this function can be done by pressing the uppermost soft key. For detail, see page 7-10.
1-13
1. OPERATIONAL OVERVIEW

1.8 Data Boxes

Data boxes, providing navigation data, may be shown on any full-screen display. Up to six data boxes (two in case of large characters) may be shown, and the default data boxes are position (in latitude and longitude), course over ground, speed over ground and trip log. The user may choose which data to display, where to locate it, and show or hide it as desired. In addition, data boxes may be set independently for each display mode (plotter, radar, sounder). For how to select data for the data boxes, see the paragraph “7.5 Data Boxes Setup.”
Data boxes
3nm
12/
LP
H-UP
TRIP LOG 177nm
POSITION
°
58.535'N
47
°
36.496'W
122
COG
323.6
M
319. 9°
SIGNAL PROC.
RADAR DISPLY
NAV FUNC
TARGET
ZOOM &
SOG
°
M
20.0 kt
D. BOX
359.9 ˚R
+
nm
11.70
Data boxes
34° 22. 3456'N 359.9°M 080° 22. 3456'E
16.0nm
WP-002
POSITION
°
47
°
122
FISH
58.535'N
36.496'W
TRIP LOG 177nm
Radar Display
Data box es
1.8.1 Showing, hiding data boxes with soft key
Plotter: D. BOX ON/OFF Radar: ZOOM & D. BOX
D. BOX ON/OFF (EBL/VRM data box, cursor data
box also shown/hidden)
Sounder: AUTO/D. BOX
D. BOX ON/OFF
1.8.2 Rearranging data boxes
COG
323.6
19.9 kt 99.9 nm
SOG
°
M
20.0 kt
Plotter Display
TRIP
NU
MARK ENTRY
MODE
NTH UP
NAV
POS
D. BOX
ON/OFF
You may select the location for data boxes as follows:
1. Using the Trackball, place the cursor inside the data box you wish to move. As the cursor enters the box it changes to a “hand”. Push the ENTER knob, and the hand
changes to a fist, meaning the box is correctly selected.
2. Use the Trackball to move the data box to the location desired, then push the ENTER
knob.
1.8.3 Temporaril y erasi ng a da ta box
If a data box is obscuring a desired object, you may temporarily erase the box. Use the
Trackball to place the cursor inside the data box you wish to erase, then press the CLEAR
key. To redisplay the box, press the D. BOX soft key twice to display it.
1-14
1. OPERATIONAL OVERVIEW

1.9 Function Keys

The function keys provide for one-touch execution of a desired function. The default function key settings are as shown in the table below.
Function
Key
Radar Plotter Sounder
Default Setting, Key Label
#1 Heading line on/off, HL Track on/off, TRK TLL output, TLL
#2 Rings on/off, RNG Edit mark/line, EML Clutter, CLT
#3 Echo trail, TRL Ruler, RUL Signal level, SLV
#4 Offcenter, OFC
Add new waypoint,
Noise limiter, NL
ADD
#5 STBY/TX, TX
Waypoint
Picture advance, PA
alphanumeric list, ALP
Executing a function
1. Press the HIDE/SHOW key to replace the preset soft key labels with the function key
labels.
3nm
12/
LP
H-UP
°
319. 9
M
H L
R N G
T R
Function
L
keys
O F C
T X
34° 22. 3456'N 359.9°M
080° 22. 3456'E 19.9 kt 99.9nm
16.0 nm
002WP
FISH
BRIDGE
TRIP
NU
T R K
E M
L
R U
Function
L
keys
A D D
A
L P
359.9 ˚R
+
nm
11.70
Radar Display
Plotter Display
Function k eys
2. Press function key desired.
Note: Function keys can be individually programmed for the plotter, radar and sounder
displays. For further details see the following:
Radar: paragraph 7.2.3 Plotter: paragraph 7.3.2 Sounder: paragraph 7.9.4
1-15
1. OPERATIONAL OVERVIEW

1.10 Simulation Display

The simulation display, for use by service technicians for demonstration purposes, provides simulated operation to help acquaint you with the many features your unit has to offer. It allows you to view and control a simulated plotter, radar and sounder picture, without position-fixing equipment, network radar or a network sounder. Most controls are operative, thus you may practice setting destination, enter waypoints, measure range and bearing to a target, etc. Three simulation displays are provided for both the radar and echo sounder.
The simulation icon (SIM) appears when any simulation mode is active.
To start the simulation display;
1. Press the MENU key.
2. Press the SYSTEM CONFIGURATION, SYSTEM SETUP and SIMULATION SETUP soft keys in that order.
SIM
RADAR LIVE PLOTTER LIVE SOUNDER LIVE SPEED 00.0kt
°
NO
°
00.000'W
COURSE 000.0 LATITUDE 45°35.000'N LONGITUDE 125 START DATE & TIME 00:00 01.APR.00
GET RADAR SIMULATION DATA
SETUP
EDIT
RETURN
Simulation setup menu
3. Follow appropriate procedure on the next several pages. To stop the simulation mode and return to normal operation, choose LIVE for radar, sounder or plotter.
Radar
NavNet display unit-generated echoes or user data
1. Select RADAR, then press the EDIT soft key.
RADAR
¡
BUILT IN DATA 1
¡
BUILT IN DATA 2
¡
USER DATA
¤
LIVE
2. Select BUILT IN DATA 1 or 2 for internally generated echoes or USER DATA for user-saved radar data. Push the ENTER knob.
3. Press the MENU key to close the menu.
1-16
1. OPERATIONAL OVERVIEW
NavNet radar antenna-generated echoes (not available with the GD-1920C)
1. Select GET RADAR SIMULATION DATA, then press the EDIT soft key.
2. Select YES, then push the ENTER knob to erase simulation data and get new data. The
message “Now getting demo data. Do not turn off display unit.” appears while the unit is receiving radar data.
Note: If the network radar could not be found “Radar source is not found. Cannot get
demo data.” appears. And if the radar is not active, the message “Radar is not active. Cannot get demo data.” is displayed. Check that the radar is plugged in and its signal cable is firmly fastened.
3. Select RADAR, then press the EDIT soft key.
4. Select SIMULATION 2, then push the ENTER knob.
5. Press the MENU key to close the menu.
Plotter
1. Select PLOTTER, then press the EDIT soft key.
2. Select SIMULATION, then push the ENTER knob.
3. Select SPEED, then press the EDIT soft key.
4. Enter speed (setting range, 0-99 kt, default speed, 0 kt) with
the alphanumeric keys, then push the ENTER knob.
PLOTTER
SIMULATION
LIVE
5. Select COURSE, then press the EDIT soft key.
6. Select “8 FIGURE” to trace the simulated ship’s track in a figure-eight course, or enter your own course at DIRECTION. To enter course, use the
Trackball to select digit, and enter value with the alphanumeric keys.
7. Press the ENTER soft key.
8. Select LATITUDE, then press the EDIT soft key.
9. Enter latitude (setting range, 85
°N-85°S, default setting, 45°35.000’N), then push the
ENTER knob.
10. Select LONGITUDE, then press the EDIT soft key.
11. Enter longitude (setting range, 180
°E-180°W, default setting, 125°00.000’W), then push
the ENTER knob.
12. Select START DATE & TIME, then press the EDIT soft key.
13. Enter start date and time, then push the ENTER knob.
14. Press the MENU key to close the menu.
Sounder
1. Select SOUNDER, then press the EDIT soft key.
2. Select BUILT IN DATA (internally generated echoes) or ETR (network sounder-generated echoes), then push the
ENTER knob.
Note: The depth, shift, bottom-zoom, bottom-lock and
bottom discrimination cannot be shown in the BUILT IN DATA mode.
3. Press the MENU key to close the menu.
SOUNDER
BUILT IN DATA
ETR
LIVE
1-17
1. OPERATIONAL OVERVIEW
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1-18

2. RADAR OPERATION

This chapter covers radar operation, including the ARP (Auto Plotter) function. ARP requires a Model 18x4C/19x4C series network radar equipped with the ARP circuit board.

2.1 Radar Display

North marker (Head-up, Course-up mode)
Range/ range ring interval
Presentation mode
Alarm icon
EBL1
Battery icon
Simulation mode
Guard zone 1
Range ring
VRM1
Zoom area
EBL1 bearing
VRM1 range
Pulselength
3nm
12/
LP
H-UP
S I M
EBL1
27.0°R VRM1
5.666nm
Guard zone 2
Cursor
Heading line
EBL2
327.1°R VRM2
8.212nm
EBL2 bearing, VRM2 range
319. 9
Heading M: Magnetic T: True
°M
TRAIL 30m
+
11.70
02m30s
G1 IN
G2 OUT
ES H
EAV L
IR L
359.9 ˚R
nm
Trail time Trail elapsed time
Guard zone 1 Guard zone 2
Echo stretch
Echo averaging
Interference rejector
VRM2
EBL2
Own ship vector (ARP-equipped model, true vector mode)
Zoom window
Cursor range and bearing (Cursor position may also be shown, in L/L or Loran C TD.)
Radar display

2.2 Transmitting, Stand-by

1. Confirm that the network radar is plugged in.
2. Press the DISP key to select a radar display.
3. Press the POWER/BRILL key momentarily.
4. Press the RADAR STBY soft key to highlight TX on its label.
5. Press the RETURN soft key.
When the radar picture is not required, but you want keep it in a state of readiness, press the RADAR TX soft key to highlight STBY on its label.
2-1
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