Furuno DD-80 User Manual

Dual GPS
DD-80
9-52 Ashihara-cho,9-52 Ashihara-cho,
A
A
*OME43741J00**OME43741J00*
Nishinomiya, JapanNishinomiya, Japan
Telephone :Telephone : 0798-65-21110798-65-2111 Telefax :Telefax : 0798-65-42000798-65-4200
ll rights reserved.
ll rights reserved.
PUB.No.PUB.No. OME-43741OME-43741
Printed in JapanPrinted in Japan
Your Local Agent/DealerYour Local Agent/Dealer
IRST EDITION :
IRST EDITION : DEC.DEC. 19951995
JJ :: APR.APR. 01,200301,2003
(( TENITENI ))
DD-80(GP-80-D)DD-80(GP-80-D)
*OME43741J00**OME43741J00*
* O M E 4 3 7 4 1 J 0 ** O M E 4 3 7 4 1 J 0 *
SAFETY INSTRUCTIONS
"DANGER", "W ARNING" and "CAUTION" notices appear throughout this manual. It is the responsibility of the operator and installer of the equipment to read, understand and follow these notices. If you have any questions regarding these safety instructions, please con­tact a FURUNO agent or dealer.
This notice indicates a potentially hazardous situation which, if not
DANGER
WARNING
avoided, will result in death or serious injury.
This notice indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
This notice indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury, or property damage.
iiiiiiiiiiiii
WARNING
CAUTION
Hazardous voltage. Can shock.
Do not open the cover. Only qualified personnel should work inside the equipment.
WARNING
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.
Use the proper fuse.
Use of a wrong fuse can result in fire or permanent equipment damage.
Power the equipment with the proper power supply.
Powering the equipment with a wrong power supply can cause permanent equipment damage.
Continued use of the equipment can cause fire or electrical shock.
Do not place liquid-filled containers on the top of the equipment.
Fire or electrical shock can result if a liquid spills into the equipment.
Keep heater away from equipment.
Heat can alter equipment shape and melt the power cord, which can cause fire or electrical shock.
TABLE OF CONTENTS
FOREWORD............................................ iii
SYSTEM OVERVIEW ............................. 1
1. OPERATIONAL OVERVIEW
4.5 Erasing Route Waypoints.................. 4-6
4.6 Replacing Route Waypoints.............. 4-7
4.7 Erasing Routes .................................. 4-7
5. SETTING DESTINATION
5.1 Setting Destination ........................... 5-1
5.2 Cancelling Destination...................... 5-5
5.3 Erasing Route Waypoints (flags) ...... 5-6
5.4 Finding Range and Bearing
Between Two Points ......................... 5-7
1.1 Control Description .......................... 1-1
1.2 Turning On and Off the Power .........1-2
1.3 Adjusting Display Contrast and
Brilliance .......................................... 1-3
1.4 Display Mode ................................... 1-3
1.5 Transmitting Data .............................1-6
1.6 The Interface Unit............................. 1-8
2. DISPLAY AND TRACK
2.1 Enlarging/Shrinking the Display ...... 2-1
2.2 Display Orientation...........................2-1
2.3 The Cursor ........................................ 2-1
2.4 Shifting the Display .......................... 2-2
2.5 Centering Own Ship's Position ......... 2-2
2.6 Stopping/Starting Plotting and
Recording of Track ........................... 2-2
2.7 Erasing Track.................................... 2-3
2.8 Track Plotting Interval ...................... 2-4
2.9 Apportioning the Memory ................ 2-5
2.10 Bearing Reference .......................... 2-5
3. MARKS
3.1 Entering Marks ................................. 3-1
3.2 Erasing Marks................................... 3-1
3.3 Mark Shape....................................... 3-2
3.4 Connecting Marks.............................3-2
3.5 Entering Event Marks....................... 3-2
3.6 Event Mark Shape ............................3-3
3.7 Entering the MOB Mark................... 3-3
6. SETTING UP VARIOUS DISPLAYS
6.1 The Data Display .............................. 6-1
6.2 Position Format................................. 6-2
6.3 Demo Display ................................... 6-4
7. ALARMS
7.1 Overview .......................................... 7-1
7.2 Arrival Alarm, Anchor W atch Alarm 7-1
7.3 Cross Track Error (XTE) Alarm ....... 7-2
7.4 Speed Alarm ..................................... 7-3
7.5 Trip Alarm......................................... 7-3
7.6 W ater Temperature Alarm................. 7-4
7.7 Depth Alarm ..................................... 7-4
7.8 DGPS Alarm ..................................... 7-4
8. MENU SETTINGS
8.1 GPS Menu......................................... 8-1
8.2 Units of Measurement ...................... 8-3
8.3 Size and Brilliance of Markers ......... 8-4
8.4 Outputting Data ................................ 8-6
8.5 Receiving Data from Personal
Computer .......................................... 8-7
8.6 DGPS Settings .................................. 8-9
8.7 GPS Monitor Display .....................8-10
9. MAINTENANCE & TROUBLESHOOTING
4. NAVIGATION PLANNING
4.1 Entering Waypoints........................... 4-1
4.2 Editing Waypoints............................. 4-4
4.3 Erasing Waypoints ............................ 4-4
4.4 Entering Routes ................................ 4-5
9.1 Clearing the Memory........................ 9-1
9.2 Preventative Maintenance................. 9-2
9.3 Error Messages ................................. 9-3
9.4 Troubleshooting................................ 9-3
9.5 Diagnostic Tests................................ 9-4
i
10. INTRODUCTION TO GPS
APPENDIX C
10.1 What is GPS?................................ 10-1
10.2 How the GPS Receiver
Calculates Position........................ 10-1
10.3 What is Differential
GPS (DGPS)? ............................... 10-2
APPENDIX A
Specifications......................................... A-1
World Time Standards ........................... A-3
Geodetic Chart List................................ A-4
Loran C Chains...................................... A-5
Decca Chains ......................................... A-6
DGPS Reference Station List ................ A-7
Glossary............................................... A-10
APPENDIX B INTERF ACE UNIT IF-2500
Specifications......................................... B-1
Installation ............................................. B-1
Connections ........................................... B-3
Maintenance........................................... B-4
INSTALLATION OF GP-80-D
General................................................... C-1
Display Unit........................................... C-2
Antenna Unit.......................................... C-3
Wiring.................................................... C-5
Initial Settings........................................ C-6
Outline Drawings................................... D-1
INDEX
ii

FOREWORD

A Word to DD-80 Owners
Congratulations on your choice of the FURUNO DD-80 dual differential GPS navi­gation system. We are confident you will see why the FURUNO name has become synony­mous with quality and reliability.
For over 50 years FURUNO Electric Com­pany has enjoyed an enviable reputation for innovative and dependable marine electron­ics equipment. This dedication to excellence is furthered by our extensive global network of agents and dealers.
This equipment is designed and constructed to meet the rigorous demands of the marine environment. However, no machine can per­form its intended function unless operated and maintained properly . Please carefully read and follow the recommended procedures for op­eration and maintenance.
We would appreciate hearing from you, the end-user, about whether we are achieving our purposes.
Thank you for considering and purchasing FURUNO equipment.
The main features of the DD-80 are
Comprehensive navigation data displays
Storage for 999 waypoints and 30 routes
• Alarms: Arrival, Anchor Watch, Cross­track Error, Speed, Water Temperature, Depth, and Trip
Man overboard feature records latitude and longitude coordinates at time of man over­board and provides continuous updates of range and bearing to that point
Menu-driven operation
Bright 122 x 92 mm LCD with tempera­ture compensated tone and brilliance ad­justment
Power consumption is a low 10 W per navi­gator.
Connection of autopilot (option) – steer­ing data output to autopilot
Digital display of water temperature and depth with connection of video sounder having IEC 61162-1/NMEA input
Memory stores 2,000 points of track and marks
3D "Highway" display shows ship's track overlaid on intended course
Position may be shown in latitude and lon­gitude or LOP (Loran or Decca)
• Navaid information (lighthouse data, lighted buoys, etc.) can be displayed by downloading database from personal com­puter.
Features
The DD-80 consists of two dual differential GPS navigator systems and an interface unit. Each GPS navigator consists of a display unit combining a GPS receiver, beacon receiver and video plotter, a GPS antenna and a bea­con antenna. The interface unit functions to exchange data between the GPS navigators and external equipment. A high sensitivity receiver tracks up to eight satellites simulta­neously . An 8-state Kalman filter ensures op­timum accuracy in determination of vessel position, course and speed.
iii
This page is intentionally left blank .

SYSTEM OVERVIEW

1. Menu Tree
Display selection menu
DISPLAY SEL
Main menu
MENU ESC
Select Display (Plotter 1, Plotter 2, Highway, Navigation and Data displays)
1. DISPLAY SETUP
2. TRACK/MARK SETUP
3. ERASE TRACK/MARK
4. ALARM SETTINGS 1/2 ALARM SETTINGS 2/2
5. MANUAL CALCULATION
6.
7. GPS MONITOR
8. SELF TESTS
SATELLITE MONITOR BEACON RCVR MONITOR STATION MESSAGE
1. MEMORY, I/O PORT TEST
2. KEYBOARD TEST
3. TEST PATTERN
4. AUTOMATIC TESTING
9. SYSTEM SETTINGS
1. PLOTTER SETUP
2. UNIT SETUP
3. DATA1, 3 OUTPUT SETUP
4. DATA TRANSFER
5. DATA4 I/O SETUP
6. GPS SETUP
7. DGPS SETUP
8. LOP SETUP
9. CLEAR MEMORY
DATA4 I/O SETUP 1/2 Out/COM./DGPS DATA4 I/O SETUP "Out" 2/2 DATA4 I/O SETUP "Com." 2/2 DATA4 I/O SETUP "DGPS" 2/2
GPS SETUP 1/2 GPS SETUP 2/2
1
Waypoint, route menu
WPT RTE
GOTO menu
GOTO
1. Cursor
2. MOB/Event Position
3. Own Ship Position
4. Waypoint List WAYPOINT LIST
5. Route Planning ROUTE LIST
1. Cursor
2. MOB/Event Position
3. Waypoint List GOTO "Waypoint List"
4. Route List GOTO "Route List"
5. Cancel
2
2. System Configuration
GPS
ANTENNA
GPA-017S/018S/019S
DISPLAY UNIT
GPR-020
GP-80
INTERFACE UNIT IF-2500
GP-80
GPS
ANTENNA
GPA-017S/018S/019S
DISPLAY UNIT
GPR-020
Position, waypoint, etc. (RS-422/Current loop)
Position, etc. (Current loop)
Arrival alarm
Cross track error alarm
Abnormal receiving alarm
3
3. Operation Flow Chart
Select display mode
• Plotter 1 (own ship's track and data)
• Plotter 2 (own ship's track)
• Highway (ship's track overlaid on navigation lane)
• Navigation (graphic navigation data display for steering)
• Data (alphanumeric navigation data)
Set destination temporarily
Register waypoints
• By latitude and longitude
• By LOP
Register routes
Set destination
Display steering data
Set alarms
Perform other operations as required. (Position correction, geodetic chart to use, enter smoothing, calculate range and bearing to a point, etc.)
4

1. OPERATIONAL OVERVIEW

1.1 Control Description

Cursor keys Shift display and cursor.
Opens/closes menu;
quits current operation.
Selects display mode.
Registers waypoints
and routes.
Inscribes mark on
the display.
Expands display range.
Centers ship's position/cursor
position.
Adjusts display contrast;
changes latitude/longitude
coordinate.
MENU
ESC
DISPLAY SEL
WPT
RTE
MARK
ZOOM IN
CENTER
TONE
1
2
3
4
5
NU/CU
ENT
EVENT MOB
GOTO
PLOT ON/OFF
ZOOM OUT
CURSOR ON/OFF
CLEAR
Selects display orientation; registers selections on menus.
6
7
8
9
0
Inscribes event mark at ship's position; marks man overboard position
Sets destination.
Turns recording and plotting of ship's track on/off.
Decreases display range.
Turns cursor on/off.
Deletes waypoints and marks; clears wrong data; silences audible alarm.
POWER
Figure 1-1 Control panel
Turns power on/off.
1–1

1.2 Turning On and Off the Power

The DD-80 takes about two minutes to find position when turned on for the very first time. Other times it takes about 20 seconds.
Note: The GPS provides highly accurate po-
sition information. However, position should always be check against other aids to naviga­tion to confirm reliability, for the safety of vessel and crew.
Turning on the power
Press the [POWER] key. The unit tests the PROGRAM MEMORY,
SRAM and battery for proper operation and shows the results on the display. "BEACON RCVR INSTALLED" appears at the bottom of the display . The unit starts up with the last used display mode and that mode is indicated at the bottom of the display.
later
A
30
[01]
20
GPS receiving condition
DGPS 3D
BRG
234°
CSE
345°
50
RNG
123
SPD
12.3
nm
kt
Several seconds
34° 23.456´ N 135° 45.678´ E
40
H
WGS84
2nm
Figure 1-2 Appearance of display when
turning on the power
When turning on the power the following oc­curs:
20 seconds after turning on the power, accu­rate position (in latitude and longitude) ap­pears on the display.
PROGRAM MEMORY = OK SRAM = OK Internal Battery = OK
BEACON RCVR INSTALLED* DATA #3 : LOG PULSE OUTPUT
Several seconds
A
later
GPS receiving condition
If position could not be found, "NO FIX" ap­pears at the GPS receiver condition window. When PDOP value exceeds 6 in the 3D mode or HDOP value exceeds 4 in the 2D mode, "DOP" appears to indicate abnormal fixing and the position indication could not be up­dated.
When the satellite signal is being received nor­mally, one of the indications shown in Table 1-1 appears depending on equipment setting and GPS receiver state.
Table 1-1 GPS receiver indication
tnempiuqE
gnittes
D2)lamron(D2SPG D3)lamron(D3SPG
laitnereffiD
D2
laitnereffiD
D3
noitacidni
etatsreviecerSPG
)lamron(D2SPGD
)lamron(D3SPGD
1-2
Note 1: When PDOP value exceeds 6 in
Plotter 1 Plotter 2 Highway
Navigation
Data
the 3D mode, the position fixing method is automatically changed to 2D.
Note 2: The "DEMO" icon appears when the display is in the demonstration mode. To return to normal mode, turn off the power and turn it on while pressing and holding down the [NU/CU ENT] key.
Turning off the power
Press the [POWER] key.

1.4 Display Mode

1) Press the [DISPLAY SEL] key. The dis­play shown in Figure 1-4 appears.
Select Display
Plotter 1
Plotter 1 Plotter 2 Highway Navigation Data
The next time you turn on the power the unit starts up with the last used display mode.
1.3 Adjusting Display Contrast and Brilliance
1) Press the [TONE] key . The display shown in Figure 1-3 appears.
[–] [+]
Tone:
Brilliance:
MENU : Escape
8 (0~31)
4 (0~4)
: Select
MENU : Escape
Figure 1-4 Screen for
selection of display mode
2) Press the [DISPLAY SEL] key, or
to select display mode. (When the [DIS­PLAY SEL] key is pressed, the display mode changes in sequence shown below.) Selected display mode appears about 15 seconds later.
Sample displays of each display mode are shown in the figures on the next several pages.
Figure 1-3 Screen for adjustment of display contrast and brilliance
2) To adjust contrast, press t or s. Cur- rent setting and setting range (0–31) are shown to the right of "s".
3) To adjust brilliance, press or . Cur - rent setting and setting range (0–4) are shown to the right of "".
Note: Operate cursor keys within 10
seconds after pressing the [TONE] key. Otherwise, the screen for adjustment of contrast and brilliance will be cleared.
1–3
Plotter 1 display
Plotter 2 display
Cursor position or lighthouse data
Own ship's track
Own ship mark
Course bar
34° 23.456´ N 135° 45.678´ E
40
H
WGS84
2.0nm
Horizontal range
Course
Course width
Cursor
Figure 1-5 Plotter 1 display
GPS receiving condition
Alarm range
30
[01]
20
Grid
Speed, or range from own ship to cursor
Bearing from own ship to destination waypoint
DGPS 3D
BRG
234°
CSE
345°
50
BRG TO +
123°
RNG TO +
11.5
Range from own ship to destination waypoint, or bearing from own ship to cursor
nm
Course
Ship's position appears when cursor is off
34° 23.456´ N 135° 45.678´ E
[01]
40
H
20
WGS84
2nm
Figure 1-6 Plotter 2 display
Highway display
Position
34° 23.456´ N 135° 45.678´ E
H
2
[01]
1
Bearing from own ship to destination waypoint
[02]
1
30
2
nm
DGPS 3D
50
DGPS 3D
BRG
234°
CSE
345°
RNG
123
SPD
12.3
Course
nm
kt
1-4
North mark
Cross track error scale
Own ship mark
Course
Own ship's track
Course width
Speed
Range from own ship to destination waypoint
Figure 1-7 Highway display
Navigation display
1) No autopilot connection
Destination waypoint no.
TO;
012
Cross track error meter
Bearing scale
N
BRG
Bearing from own ship to destination waypoint
E
63°
CSE
0.1nm 0.1nm
123°
Velocity To Destination
S
Speed
DGPS 3D
SPD
12.3
VTD
10.3
RNG
123
nm
2) Autopilot connection, automatic mode
TO;
012
E
N
BRG:
63°
CSE:
0.1nm 0.1nm
kt
Auto Pilot Hdg
Auto
kt
Auto mode
123°
123°
Heading
S
Str
P 23°
Rudder angleRudder angle
DGPS 3D
SPD
12.3
VTD
10.3
RNG
123
TRIP
789
nm
nm
kt
kt
ETA TTG
Cross track error scale
15
23:45'
Estimated Time of Arrival (15th23:45)
Cross track error indication
3D
17H 45M
Time To Go (3days17hrs45min)
Figure 1-8 Navigation display,
no autopilot connection
TRIP
789
Trip
distance
Range from own ship to destination waypoint
Figure 1-9 Navigation display, with
nm
autopilot connection, automatic mode
3) Autopilot connection, modes other than automatic mode (manual, nav, etc.)
TO;
- - -
N
BRG:
E
63°
CSE:
0.1nm 0.1nm
Auto Pilot
Man
Man: Manual mode Nav: Nav mode Other:---
123°
Hdg
123°
Heading
S
Str
P 23°
Rudder angle
DGPS 3D
SPD
12.3
VTD
10.3
AP CSE
123°
TRIP
789
nm
Autopilot-set course
kt
kt
Figure 1-10 Navigation display, with
autopilot connection, modes other than
the automatic mode
1–5
Data display
Data to display and size of characters can be selected by the operator.
Position in latitude and longitude or LOPs
Fixing date and time*
Cursor
SEP 12, 1995 23:59'59" U DGPS 3D
POSITION
WGS84
RNG
31.23
SPD
12.3
User-defined display data #1
User-defined display data #2
User-defined display window
12° 23.456' N 123° 23.456' E
BRG
nm
kt
223.4°
CSE
123.4°
User-defined display data #4
User-defined display data #3
Figure 1-11 Data display mode
TO : 001
NEXT
Current destination waypoint Next destination waypoint
MARINE POINT1
: 002
MARINE POINT2
*: "--" appears until calculating position after turning on the power. If fixing error occurs this indication stops.

1.5 Transmitting Data

The GPS navigators share the data listed be­low when transmitting data to each other . Any action initiated against those data is automati­cally repeated on the other navigator . For ex­ample, if you register waypoint 27 on one navigator it will be registered on the other navigator under the same waypoint number.
• Alarm settings, alarm buzzer
• Destination data
• Disabled satellite data
• Error messages
• MOB/Event mark data
• Route data
• Waypoint data
Transmitting data
To mutually transmit data, do the following:
1) Press the [MENU ESC] key to display the MAIN menu.
MAIN MENU
1. DISPLAY SETUP
1. DISPLAY SETUP
2. TRACK/MARK SETUP
3. ERASE TRACK/MARK
4. ALARM SETTINGS
5. MANUAL CALCULATION
6.
7. GPS MONITOR
8. SELF TESTS
9. SYSTEM SETTINGS
ENT: Enter MENU: Escape
Figure 1-12 MAIN menu
1-6
2) Press the [9] key to display the SYSTEM SETTINGS menu.
SYSTEM SETTINGS
1. PLOTTER SETUP
2. UNIT SETUP
2. UNIT SETUP
2. UNIT SETUP
3. DATA 1, 3 OUTPUT SETUP
4. DATA TRANSFER
5. DATA 4 I/O SETUP
6. GPS SETUP
7. DGPS SETUP
8. LOP SETUP
9. CLEAR MEMORY
Now transmitting data
MENU: Stop
Figure 1-16
5) To stop transmitting data, press the [MENU ESC] key . The following display appears.
Are you sure to stop ?
ENT: Enter
MENU: Escape
Figure 1-13 SYSTEM SETTINGS menu
3) Press the [4] key to select DATA TRANS­FER.
DATA TRANSFER
Transmit Data All Stop Start
: Select
ENT: Enter MENU: Escape
Figure 1-14 DATA TRANSFER menu
4) Press s to select All and press the [NU/ CU ENT] key. The following message appears. Press the [NU/CU ENT] key to transmit, or [MENU ESC] to escape.
Are you sure to transmit ?
ENT: Yes MENU: No
Figure 1-17
Press the [NU/CU ENT] key to stop. In this case, data is partially transmitted to the other GPS navigator. You should fol­low "Transmsitting data" in this paragraph to transmit data again.
6) The following message appears when data was transmitted successfully.
Transmitting ended successfully
Press any key
Figure 1-18
7) Press any key to escape.
8) If transmission failed, transmission is stopped and the following message ap­pears.
Failed in transmitting Try again please Press any key
ENT: Yes MENU: No
Figure 1-15
The following message appears while data is being transmitted.
Figure 1-19
9) Press any key to return to the DATA TRANSFER menu and select Stop. Since data will be not the same on both GPS navigator, repeat this procedure from step 4 until data is successfully transmitted.
1–7
Transmission failure during operation
Data is transmitted only once. When trans­mission error occurs, the following message appears.
Failed in transmitting Try "DATA TRANSFER" menu Press any key

1.6 The Interface Unit

The Interface Unit IF-2500 outputs data re­ceived from the navigators to external equip­ment. Operational status is shown by the LEDs on the unit. For further details, see APPEN­DIX B of this manual. For how to select data to output, see paragraph 8.4 Outputting Data.
Output data conventions
Figure 1-20
Press any key to erase the message. Follow "Transmitting data" in this paragraph to trans­mit data again.
Since both navigators output data to the IF­2500 (through two ports on the interface) con­fusion would reign if it were to try to output two sets of mostly identical data. Therefore, data output is governed by the following rules:
When both navigators are outputting data correctly, data received at the port having higher priority is output.
When the GPS abnormal receive signal is received at the port having higher priority, data received from the other port is output.
• 30 seconds after data received at the port
having higher priority becomes normal, the interface resumes outputting data re­ceived from that port.
• When data from both navigators is in er-
ror, data received at the port having higher priority is output.
• Arrival alarm signal or cross track error alarm is converted to a contact signal and output when received at the port having higher priority.
When no data is received from one or both navigators, a contact signal is output.
1–8
2. DISPLAY AND
234°
DGPS 3D
30° 22.321´ N 139° 43.543´ E
BRG
345°
BRG T o +
123°
11.5
RNG T o +
nm
CSE
WGS84
2.0nm
Cursor mark Cursor position in latitude and longitude
Cursor
Range from own ship to cursor
Bearing from own
ship to cursor
Destination not set
TRACK

2.1 Enlarging/Shrinking the Display

You may enlarge/shrink the display on the Plotter 1 and Plotter 2 displays, with the [ZOOM IN] and [ZOOM OUT] keys. The horizontal range is available among 0.25, 0.5, 1, 2, 4, 8, 16, 32, 64, 128 and 192 nautical miles. For the Plotter 1 display the ranges are
0.36, 0.71, 1.42, 2.84, 5.69, 11.38, 22.76,
45.51, 91.02, 182.04 and 273.07 nautical miles.
The [ZOOM IN] key enlarges the display and the [ZOOM OUT] key shrinks it. Each time a zoom key is pressed the horizontal range ap­pears at the center of the display for about three seconds.

2.2 Display Orientation

Ship's heading or course is at the top of the display . The north mark appears at the left side of the display.
2.3 The Cursor
The cursor (+) functions to measure the se­lect location for a mark; erase marks, mea­sure range and bearing, etc.
Data and cursor state
Cursor state determines what data are shown on the display.
Cursor turned on
Cursor position is displayed in latitude and longitude or LOPs (depending on menu set­ting) at the top of the display. The range and bearing from own ship to the cursor appear at the right hand side of the display , when in the Plotter 1 display.
Display orientation can be selected on the Plotter 1, Plotter 2 and Highway displays, with the [NU/CU ENT] key. Two display orienta­tions are available: north-up and course-up.
North-up display
In the north-up display, true north (0°) is at the top of the display . Own ship moves on the display in accordance with true speed and true motion. Land is stationary.
Course-up display
Destination set
The destination is at the top of the display and the north mark ( ) appears at the left side of the display.
Figure 2-1 Data displayed
when the cursor is on
2-1
Cursor turned off

2.4 Shifting the Display

Ship's position (in latitude and longitude or LOPs), speed and course appear on the dis­play.
Own ship mark
34° 23.456´ N 135° 45.678´ E
Own ship position in latitude and longitude
DGPS 3D
BRG
234°
CSE
345°
RNG
123
SPD
12.3
Speed
nm
kt
Course
The display can be shifted on the Plotter 1 and Plotter 2 displays, with the [CURSOR ON/OFF] key. When own ship tracks off the display it is automatically returned to the screen center.
1) Press the [CURSOR ON/OFF] key to turn
off the cursor.
2) Press the cursor keys. The display shifts
in the direction of the cursor key pressed.
2.5 Centering Own Ship's
Position
1) Press the [CURSOR ON/OFF] key to turn
off the cursor.
2) Press the [CENTER] key.
2.6 Stopping/Starting Plotting
Figure 2-2 Data displayed
when the cursor is turned off
Shifting the cursor
1) Press the [CURSOR ON/OFF] key to turn on the cursor.
2) Press the cursor keys to shift the cursor. The cursor moves in the direction of the cursor key arrow pressed. When the cur­sor reaches the edge of the display, the display shifts in the direction opposite of the cursor key pressed.
Centering the cursor
Press the [CENTER] key.
and Recording of T rack
The DD-80 stores 2,000 points of track and marks. When the memory becomes full the oldest track is erased to make room for the latest. Thus you may want to conserve the memory when, for example, you are return­ing to port or are anchored, by stopping plot­ting and recording of the track.
Procedure
Press the [PLOT ON/OFF] key to start/stop recording and plotting of track.
When plotting is resumed
"Resuming track plot" appears at the center of the display for about three seconds.
When plotting is stopped
2–2
"Stopping track plot" appears at the center of the display for about three seconds and "
appears at the left side of the display. ("
does not appear on the Navigation and Data displays.)
H
H
"
"
Hold icon (appears while recording of track is stopped)

2.7 Erasing Track

The track stored in the memory and displayed on the screen can be erased.
34° 23.456´ N 135° 45.678´ E
H
This portion of track does not appear on the display
Recording of track turned off
Own ship
Ship’s track while recording is stopped
Figure 2-3 Track not plotted or
recorded when plotting is stopped
DGPS 3D
BRG
234°
CSE
345°
RNG
123
SPD
12.3
Recording of track started
nm
kt
Note: Track cannot be restored once erased.
Be absolutely sure you want to erase track.
1) Press the [MENU ESC] key. The MAIN MENU appears.
MAIN MENU
1. DISPLAY SETUP
1. DISPLAY SETUP
2. TRACK/MARK SETUP
3. ERASE TRACK/MARK
4. ALARM SETTINGS
5. MANUAL CALCULATION
6.
7. GPS MONITOR
8. SELF TESTS
9. SYSTEM SETTINGS
ENT: Enter MENU: Escape
Figure 2-4 MAIN menu
2) Press [3] to select ERASE TRACK/ MARK.
ERASE TRACK/MARK
Erase Track
Erase Mark
No
No
Yes Yes
Track Pts. Used: Mark Pts. Used:
345/1000 Pt
123/1000 Pt
: Select
MENU: Escape
Figure 2-5 ERASE TRACK/MARK menu
3) Press or to select Erase Track.
4) Press s to select Yes. The message shown in Figure 2-6 appears.
2–3
Are you sure to erase ?
3) Press or to select Track Rec.
4) Press t to select Time.
ENT: Yes MENU: No
Figure 2-6 Prompt for erasure of track, mark
5) Press the [NU/CU ENT] key.

2.8 Track Plotting Interval

The plotting interval determines both how the track will be reconstructed on the display and track storage time. A shorter interval provides more accurate reconstruction of track line, however total storage time is reduced. The plotting interval can be selected by time or distance. Plotting by distance offers the ad­vantage that the track is not stored when the vessel is anchored.
Plotting interval by time
The setting range for plotting by time is 00 to 60 minutes.
5) Enter plotting interval in four digits. To enter 30 seconds, for example, press [0] [0] [3] [0].
6) Press the [NU/CU ENT] key.
7) Press the [MENU ESC] key.
Plotting interval by distance
The setting range for plotting by distance is
0.01 to 99.99 nautical miles. To plot all track,
enter 00.00.
1) Press the [MENU ESC] key.
2) Press [2] to display the TRACK/MARK SETUP menu.
3) Press or to select Track Rec.
4) Press s to select Distance.
5) Enter plotting interval. T o enter 0.1 nauti­cal miles, for example, press [0] [0] [1].
6) Press the [NU/CU ENT] key.
7) Press the [MENU ESC] key.
1) Press the [MENU ESC] key.
2) Press [2] to display the TRACK/MARK SETUP menu.
TRACK/MARK SETUP
Track Rec
Mark Shape
Mark Line
Event Mark
: Select
ENT: Enter
Time
(01'00)
MENU: Escape
(00.50nm)
Dist
Figure 2-7 TRACK/MARK SETUP menu
2–4

2.9 Apportioning the Memory

The memory holds 2,000 points of track and marks and may be apportioned as you like. The default memory setting stores 1,000 points each of track and marks.
Note: All data are erased when the memory
apportion setting is changed, even when the previous value is reentered.
5) Enter amount of track to store, in four dig­its. To store 1,500 track points, for ex­ample, press [1] [5] [0] [0].
6) Press the [NU/CU ENT] key, or or ▼. You are asked if it is all right to erase all data.
Setting erases all data! Are you sure to change ?
T o store 1,500 points of track and 500 marks, for example, do the following:
1) Press the [MENU ESC] key.
2) Press [9] to display the SYSTEM SET­TINGS menu.
SYSTEM SETTINGS
1. PLOTTER SETUP
2. UNIT SETUP
2. UNIT SETUP
2. UNIT SETUP
3. DATA 1, 3 OUTPUT SETUP
4. DATA TRANSFER
5. DATA 4 I/O SETUP
6. GPS SETUP
7. DGPS SETUP
8. LOP SETUP
9. CLEAR MEMORY
ENT: Enter
MENU: Escape
Figure 2-8 SYSTEM SETTNGS menu
3) Press [1] to display the PLOTTER SETUP menu.
ENT: Yes MENU: No
Figure 2-10
7) Press the [NU/CU ENT] key.
8) Press the [MENU ESC] key.

2.10 Bearing Reference

Ship's course and bearing to waypoint may be displayed in true or magnetic bearing. Mag­netic bearing is true bearing plus (or minus) earth's magnetic deviation.
True or magnetic bearing
The default setting displays magnetic bear­ings.
1) Press the [MENU ESC] key.
2) Press [9] to display the SYSTEM SET­TINGS menu.
PLOTTER SETUP
Memory Apportion
Bearing Ref.
Mag Variation
User defined #1 RNG User defined #2 SPD User defined #3 BRG User defined #4 CSE
ENT: Enter
Trk = 1000 / 2000Pt
True
Auto
(07° W)
R.L
MENU: Escape
Mag Man
(00° E)
G.CCalculation
Figure 2-9 PLOTTER SETUP menu
4) Press or to select Memory Appor-
tion.
3) Press [1] to display the PLOTTER SETUP menu.
4) Press or ▼ to select Bearing Ref.
5) Press t or s to select True or Mag.
6) Press the [NU/CU ENT] key, or.
7) Press the [MENU ESC] key.
2–5
Magnetic variation
The location of the magnetic north pole is dif­ferent from the geographical north pole. This causes a difference between the true and mag­netic north direction. This difference is called magnetic variation, and varies with respect to the observation point on the earth. Magnetic variation may be entered automatically or manually.
1) Press the [MENU ESC] key.
2) Press [9] to display the SYSTEM SET­TINGS menu.
3) Press [1] to display the PLOTTER SETUP menu.
4) Press or ▼ to select Mag Variation.
5) Press t or s to select Auto or Man. For automatic, current variation appears in pa­rentheses.
6) For manual entry , enter variation in two digits, referring to a nautical chart. If the variation is 10°, for example, press [1] [0].
7) If necessary , press the [
coordinate from east to west or vice versa.
8) Press the [NU/CU ENT] key.
9) Press the [MENU ESC] key.
] key to change
2–6

3. MARKS

At cursor intersection
1) Press the [CURSOR ON/OFF] key to turn on the cursor.

3.1 Entering Marks

Marks can be inscribed on the Plotter 1 and Plotter 2 displays, in one of 12 mark shapes. Further , marks can be connected with lines to denote net location, etc.
Note 1: When the mark memory becomes full
no marks can be entered. When this occurs, the buzzer sounds and the message shown be­low appears on the display for three seconds. To enter a mark when the mark memory is full, erase unnecessary marks.
Can't save mark Memory full
Figure 3-1
Note 2: Marks cannot be entered when there
is no position data. When this occurs, the buzzer sounds and the message shown below appears on the display for three seconds to alert you. Check the antenna cable for tight connection.
2) Operate the cursor keys to place the cur­sor on the location for the mark.
3) Press the [MARK] key.

3.2 Erasing Marks

Marks can be erased individually or collec­tively.
Note: All marks, including event marks and
the MOB mark, can be erased on the ERASE MARK menu. Be absolutely sure you want to erase all marks; erased marks cannot be restored.
Erasing individual marks
1) Place cursor on the mark to erase.
2) Press the [CLEAR] key .
Erasing all marks
1) Press [MENU ESC] and [3] to display the ERASE TRACK/MARK menu.
Can't save mark No position data
Figure 3-2
Entering marks
At own ship position
1) Press the [CURSOR ON/OFF] key to turn off the cursor.
2) Press the [MARK] key.
ERASE TRACK/MARK
Erase Track
Erase Mark
Track Pts. Used: Mark Pts. Used:
No
No
Yes Yes
345/1000 Pt
123/1000 Pt
: Select
MENU: Escape
Figure 3-3 ERASE TRACK/MARK menu
2) Press or to select Erase Mark.
3) Press s to select YES.
3–1
Are you sure to erase ?
ENT: Yes MENU: No
Figure 3-4
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.

3.4 Connecting Marks

Marks can be connected with lines to denote net location, fishing spot, etc. Three types of connection lines are available and the "•" set­ting disables connection of lines.
1) Press [MENU ESC] and [2]
2) Press or to select Mark Line.
3) Press t or s to select mark line de- sired.

3.3 Mark Shape

12 mark shapes are available. Select mark shape as follows:
1) Press [MENU ESC] and [2] to display the TRACK/MARK SETUP menu.
TRACK/MARK SETUP
Track Rec
Mark Shape
Mark Line
Event Mark
: Select
ENT: Enter
Time
(01'00)
MENU: Escape
(00.50nm)
Dist
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.

3.5 Entering Event Marks

Event marks can denote any important present position; for example, a good fishing spot. 99 event marks can be saved, and the unit auto­matically numbers them from 01 to 99.
Event marks are mutually entered when the navigators are sharing data.
Note 1: When the mark memory becomes full
no event marks can be entered. When this oc­curs, the buzzer sounds and the message shown below appears on the display for three seconds to alert you. To enter an event mark when the mark memory is full, erase unnec­essary event marks.
Figure 3-5 TRACK/MARK SETUP menu
2) Press or ▼ to select Mark Shape.
3) Press t or s to select mark shape de- sired.
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
The next mark entered will be inscribed in the shape selected here.
3–2
Can't save event Memory full
Figure 3-6
Note 2: Event marks cannot be entered when
there is no position data. When this occurs, the buzzer sounds and the message shown below appears on the display for three sec­onds to alert you. Check the antenna cable for tight connection.

3.7 Entering the MOB Mark

Can't save event/MOB No position data
Figure 3-7
To enter an event mark;
1) Press the [EVENT MOB] key less than three seconds. The position at the exact moment the key is pressed is saved as an event position.
Saved event position
34°40.123’ N
135°21.123’ E
Figure 3-8
To erase event marks, see "3.2 Erasing Marks".
The MOB mark denotes man overboard po­sition. T o mark man overboard position, press the [EVENT MOB] key. When the key is pressed, the position at the exact moment the key is pressed automatically becomes the des­tination. Further, the Plotter 1 display replaces the display in use when it is other than a plot­ter display.
Only one MOB mark may be entered. Each time the MOB mark is entered the previous MOB mark and its position data are written over. The MOB mark is mutually entered when the navigators are sharing data.
Note: The MOB mark cannot be entered
when there is no position data. When this oc­curs, the buzzer sounds and the message shown below appears on the display for three seconds to alert you. Check the antenna cable for tight connection.

3.6 Event Mark Shape

Event marks are available in 9 shapes. Event mark shape is mutually changed when
the navigators are sharing data. Select event mark shape as follows.
1) Press [MENU ESC] and [2] to display the TRACK/MARK SETUP menu.
2) Press or ▼ to select Event Mark.
3) Press t or s to select event mark shape desired.
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
The next event mark entered will be inscribed in the shape selected here.
Can't save event/MOB No position data
Figure 3-9
1) Press the [EVENT MOB] key for at least three seconds.
The MOB mark ("M") is entered at the MOB position and the message shown in Figure 3-10 appears.
Saved MOB position Are you sure to change course to MOB position ? ENT: Yes MENU: No
Figure 3-10
2) Press the [NU/CU ENT] key. If the dis­play in use is Highway, Navigation or Data, they are automatically replaced by the Plotter 1 display.
Note: You may cancel MOB position as des-
tination by pressing the [MENU ESC] key instead of the [NU/CU ENT] key at step 2. Note that the MOB mark remains on the dis­play.
3–3
Erasing the MOB mark
See "3.2 Erasing Marks". (MOB marks can­not be erased with the cursor .) The MOB mark is mutually erased when the navigators are sharing data.
3–4

4. NAVIGATION PLANNING

4.1 Entering Waypoints

In navigation terminology a waypoint is a particular location on a voyage whether it be a starting, intermediate or destination waypoint.
Place cursor on desired location
ENT: Enter MENU: Escape
Figure 4-2
The display changes to Plotter 2 when the Highway, Navigation or Data mode is in use.
3) Press the cursor keys to place the cursor on the location desired for the waypoint.
The DD-80 can store 999 waypoints, num­bered from 001–999. Waypoints can be reg­istered four ways:
• by cursor
• by MOB position or event position
• at own ship's position, and
• through the waypoint list.
Waypoints are mutually entered when the navigators are sharing data.
Entering waypoints by the cursor
1) Press the [WPT R TE] key . The W aypoint/ Route menu appears.
Waypoint/Route
1. Cursor
1. Cursor
2. MOB/Event Position
3. Own ship Position
4. Waypoint List
5. Route Planning
4) Press the [NU/CU ENT] key. A window similar to the one shown in Fig-
ure 4-3 appears. The waypoint's position and date and time registered appear on the first and second lines. Waypoints are au­tomatically given the youngest empty waypoint number and this number appears on the third line. You may, however, as­sign a different number. If the waypoint shares the same position with a mark, the mark's position and date and time entered are registered as waypoint data.
If the waypoint memory is full, the waypoint number line in the window is blank. In this case waypoints cannot be entered unless a waypoint is written over or erased.
To assign waypoint number, go to step 5. If you do not want to change the waypoint number, go to step 6 to select mark shape and enter comment.
: Cursor
ENT: Enter
MENU: Escape
Figure 4-1 Waypoint/Route menu
2) Press [1] to select Cursor. The following display appears.
30° 12.345' N 135° 23.456' W
AUG 12’ 95 12 : 34U
No.
:
1
123 Mark : Cmnt :
: Column: Cursor
ENT: Enter
MENU: Escape
Figure 4-3
5) Enter waypoint number, in three digits (001–999).
6) Press to select waypoint mark shape.
4–1
6) Press to select waypoint mark shape.
The following display appears.
: Cursor
ENT: Enter
MENU: Escape
Figure 4-4 Screen for selecting
waypoint mark shape
Control is returned to the last used display mode.
When the waypoint number entered at step 5 already exists, the message shown in Figure 4-4 appears if the waypoint is part of the cur­rent destination or route or is part of a route. If it is you are sure to write over the waypoint and its data, press the [Y] key. To change waypoint number, press the [N] key.
7) Press t or s to select mark shape.
8) Press the [NU/CU ENT] key . The display shown in Figure 4-5 appears.
A
ABCDE FGHIJ KLMNO PQRST UVWXYZ abcde
1 2 3 4 5 6 7 8 9 0 _ # % ’ ( ) + - . / : ; < = > ?
ENT: Set
fghij
COMMENT:
: Cursor
klmno
ENTER
_ _ _ _ _ _ _ _ _ _ _ _
pqrst
MENU: Escape
uvwxyz
Figure 4-5 Screen for entry
of comment for waypoint
9) You may enter a comment, as shown in the procedure which follows, or skip to step 10 to finish. The comment may con­sist of up to 12 alphanumeric characters.
1Press the cursor keys to select alphanu-
meric character .
1st line Are you sure to change ?
ENT: Yes MENU: No
This wpt is GOTO This wpt is in registered route This wpt is in selected route
Figure 4-6
Note: If you fail to enter waypoint number,
"Enter waypoint number" appears on the dis­play for three seconds.
2Press the [NU/CU ENT] key. Selected
character appears on the COMMENT line.
• To create a space, select "_".
• Numeric data can be input directly by pressing numeric keys.
• To clear wrong data, press the [CLEAR] key.
3Repeat steps 1 and 2 to complete the
comment.
4Select ENTER and press the [NU/CU
ENT] key.
10)Press the [NU/CU ENT] key.
4–2
Entering waypoints by MOB position/event position
Entering waypoints at own ship's position
The MOB position or an event position can be registered as a waypoint. Event marks are numbered from 01 to 99; 01 is the latest event mark.
Note: You cannot register a MOB position or
event position when there are no MOB posi­tions or event positions saved. The buzzer sounds and the message shown in Figure 4-7 appears for three seconds to alert you.
No MOB/event data in memory
Figure 4-7
1) Press the [WPT/RTE] key.
2) Press [2] to select MOB/Event Position. The display shown in Figure 4-8 appears.
[MOB] Displaying MOB data 34° 12.345' N 130° 23.456' E
[#01] Displaying event data 34° 12.345' N 130° 23.456' E
ENT:Enter
ENT: Enter
AUG 12' 94 19 : 25U
:Recall
AUG 12' 95 19 : 25U
MENU:Escape
: Paging
MENU: Escape
Figure 4-8
3) Press t or s to display the MOB posi- tion or event position to register as a waypoint.
Note: When there is no position data, you can-
not register a waypoint at own ship's position. The buzzer sounds and the following message appears.
No position data
Figure 4-9
1) Press the [WPT/RTE] key.
2) Press [3] to select Own Ship Position.
3) Follow steps 5 through 11 in "Entering waypoints by the cursor" on page 4-1.
Entering waypoints through the waypoint list
1) Press the [WPT/RTE] key.
2) Press [4] to display the waypoint list.
3) Press [
] to select position format; lati-
tude and longitude or LOP.
WAYPOINT LIST (L/L)
001
34° 12.345' N 130° 23.456' W
MARINE POINT
36° 12.345' N 135° 23.456' W
002
A POINT
003
° . ' N ° . ' W
AUG 12' 95 12 : 35U
AUG 13' 95 13 : 45U
4) Press the [NU/CU ENT] key.
5) Follow steps 5 through 11 in "Entering waypoints by the cursor" on page 4-1.
004
ENT: Enter
° . ' N ° . ' W
: L/L´LOP
: Edit
MENU: Escape
Figure 4-10
4) Press or to select waypoint number .
5) Press t or s to enter position. The dis­play should now look something like Fig­ure 4-11.
4–3
Edit = Waypoint : 001
_ _°
_ _._ _ _' N _ _ _°_ _._ _ _' W
Mark : Cmnt :
__

4.2 Editing Waypoints

W aypoints are mutually edited when the navi­gators are sharing data.
1) Press [WPT RTE] and [4].
: Cursor
ENT: Enter
: Column
MENU: Escape
Figure 4-11
6) Enter latitude and longitude. To enter
34°12.345' N 135°23.456' E, for example, press;
([
]) [3] [4] [1] [2] [3] [4] [5]
([
]) [1] [3] [5] [2] [3] [4] [5] [6]
To change N to S or E to W, press [
].
7) Press ▼.
8) Press t or s to select mark.
9) Press the [NU/CU ENT] key.
10)Enter comment.
11) Press the [NU/CU ENT] key twice. The waypoint list reappears. Waypoint
position and date and time the waypoint was entered appear on the list.
2) Press or ▼ to select waypoint to edit.
3) Press s.
4) Edit the contents of the waypoint.
5) Press the [NU/CU ENT] key. The mes­sage shown in Figure 4-12 appears if the waypoint is currently selected as destina­tion, is part of a route, or is in the route currently selected as destination.
1st line Are you sure to erase ?
ENT: Yes MENU: No
This wpt is GOTO This wpt is in registered route This wpt is in selected route
Figure 4-12
12) To enter another waypoint through the waypoint list, return to step 4.
13)Press the [MENU ESC] key to finish.
6) Press the [NU/CU ENT] key. The waypoint and its data are erased. En-
ter new data, referring to "4.1 Entering Waypoints".
7) Press the [MENU ESC] key.

4.3 Erasing Waypoints

W aypoints are mutually erased when the navi­gators are sharing data.
Erasing waypoints by the cursor
1) Place the cursor on the waypoint to erase.
2) Press the [CLEAR] key .
4–4
Erasing waypoints through the waypoint list
1) Press [WPT RTE] and [4].
2) Press ▲ or to select waypoint to erase.
3) Press the [CLEAR] key. The message shown in Figure 4-13 appears if the waypoint is currently selected as destina­tion, is part of a route, or is in the route currently selected as destination.
1st line Are you sure to erase ?
ENT: Yes MENU: No
This wpt is GOTO This wpt is in registered route This wpt is in selected route

4.4 Entering Routes

Often a trip from one place to another involves several course changes, requiring a series of route points which you navigate to, one after another. The sequence of waypoints leading to the ultimate destination is called a route. The DD-80 can automatically advance to the next waypoint on a route, so you do not have to change the destination waypoint repeatedly .
The DD-80 can store 30 routes and each route may contain up to 30 waypoints. Routes can be registered while in the Plotter 1 or Plotter 2 display mode. Routes are mutually regis­tered when the navigators are sharing data.
Entering routes
1) Press the [WPT/RTE] key.
2) Press [5] to select Route Planning. The route list appears.
Figure 4-13
Note: All waypoint marks (as well as all
other marks) and their data can be erased collectively by clearing the Plotter memory . For further details, see page 9-1.
4) Press the [NU/CU ENT] key.
Note: T o cancel erasure, press the [MENU
ESC] key instead of the [NU/CU ENT] key. The waypoint list appears.
5) Press the [MENU ESC] key.
ROUTE LIST
No. PTS Total Dist. TTG Remarks
30
01
02 03 04
05 06
ENT: Enter
Remarks Use: In use Fwd: Traverse waypoints in forward order Rvs: Traverse waypoints in reverse order
1234 . 56 nm
25
234 . 56 nm *999. 99 nm
30
. nm
30
6543 . 21 nm
. nm
12D15H28M 2D08H35M
*9D*9H*9M
D H M
34D23H45M
D H M
: Edit: Route No.
MENU: Escape
UseFwd
Figure 4-14 Route list
3) Press or ▼ to select route number.
4) Press s. The route planning/waypoint list window
appear as shown in Figure 4-15. The waypoint list window lists the position and data for each registered waypoint. No po­sition or data appears for empty waypoints.
4–5
ROUTE : 01 (In Use , REVERSE)
skip Distance TTG
Trial Speed : Auto Man (012.0kt)
01
02
001
002
ENT: Enter
Use: In use Fwd: Traverse waypoints in forward order Rvs: Traverse waypoints in reverse order
EN
EN
34° 12.345' N 130° 23.456' E
MARINE POINT
36° 12.345' N 135° 23.456' E
A POINT
: RTE WPT
MENU: Escape
nm
.
nm
.
AUG 12' 95 12 : 35U
AUG 13' 95 13 : 45U
CLEAR: Delete
D M H D M H
Route editing screen
Waypoint list
22
2
Using previously registered waypoints
22
Enter waypoints in the order they will be tra­versed; not by waypoint number order.
7) Press [
]. The reverse video on the waypoint on route planing screen disap­pears.
8) Press ▲ or ▼ to select waypoint number .
9) Press the [NU/CU ENT] key. Selected waypoint number appears on the route editing screen. The distance and time-to­go indications to the first waypoint entered are blank.
Figure 4-15 Route editing screen
5) If required, press to enter the speed by
which to calculate time-to-go.
6) Press t or s to select Auto or Man.
Auto: Current average speed is used to calculate the time-to-go. Manual: Entered speed is used to calculate the time-to-go. Enter speed and press ▼.
Route waypoints may be registered two ways: entering waypoint number directly or through the route editing screen. Follow 1 or 2 be- low.
11
1
Entering waypoint number directly
11
7) Enter waypoint number, in three digits. The cursor shifts to the "Skip" window. The procedure for skipping a waypoint is shown on page 5-4. For now, go to the next step.
8) Press to continue. If the waypoint en­tered in step 7 does not exist, you are in­formed that the waypoint does not exist and entry is cancelled.
9) Enter other route waypoints by repeating steps 7 and 8.
10) To enter other route waypoints, repeat steps 8 and 9.
11)Press the [MENU ESC] key to finish.
Note: To return to the route editing screen,
press [
].

4.5 Erasing Route Waypoints

Route waypoints are mutually erased when the navigators are sharing data.
1) Press [WPT RTE] and [5] to display the route list.
2) Press or ▼ to select route.
3) Press s to display route editing screen.
4) Select the waypoint to erase.
5) Press the [CLEAR] key .
6) Press the [NU/CU ENT] key.
7) Repeat steps 2 through 4 to continue eras­ing waypoints.
8) Press the [MENU ESC] key. The route is rearranged to reflect the change.
10)Press [MENU ESC] to finish.
4–6
4.6 Replacing Route

4.7 Erasing Routes

Waypoints
Route waypoints are mutually replaced when the navigators are sharing data.
1) Press [WPT RTE] and [5] to display the route list.
2) Press or ▼ to select route.
3) Press s to display route editing screen.
4) On the route editing screen, place the cur ­sor on waypoint number to replace.
5) Enter new waypoint number.
6) Press the [NU/CU ENT] key. The mes­sage shown in Figure 4-16 appears.
This waypoint already exists Are you sure to change ?
ENT: Yes MENU: No
Routes are mutually erased when the naviga­tors are sharing data.
1) Press [WPT RTE] and [5] to display the route list.
2) Press or ▼ to select route to erase.
3) Press the [CLEAR] key. The display shown in Figure 4-17 appears if the route is in use.
1st line Are you sure to erase ?
ENT: Yes MENU: No
This route is in use
Figure 4-17
Figure 4-16
7) Press the [NU/CU ENT] key.
8) Press the [MENU ESC] key twice.
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
4–7
This page is intentionally left blank .
5. SETTING DESTINATION
Setting destination by cursor
Using the cursor you may set a destination consisting of 30 points. When all 30 points are entered, the DD-80 automatically disables further entry.

5.1 Setting Destination

There are four ways by which you can set destination:
• By cursor
• By MOB position or event position
• By waypoint, and
• By route. The same destination is set on both naviga-
tors when they are sharing data.
Note 1: Destination cannot be set when there
is no GPS position data. When there is no po­sition data, the buzzer sounds and the mes­sage shown in Figure 5-1 appears.
No position data
Setting single destination
1) Press the [GOTO] key. The menu shown in Figure 5-2 appears.
GOTO Setting
1. Cursor
1. Cursor
2. MOB/Event Position
3. Waypoint List
4. Route List
5. Cancel
: Cursor
ENT : Enter
MENU : Escape
Figure 5-2 GOTO setting menu
2) Press [1] to select Cursor. The display shown in Figure 5-3 appears.
Figure 5-1
Note 2: Previous destination is cancelled
whenever a destination is set.
Place cursor on desired location Press ENT twice to finish ENT:Enter CLR:Clear MENU:Escape
Figure 5-3
If the display in use is other than Plotter 1, the Plotter 2 display is automatically selected.
3) Place the cursor on the location desired for destination.
4) Press the [NU/CU ENT] key.
Note: To clear selection, press the
[CLEAR] key.
5) Press the [NU/CU ENT] key to finish.
Control is returned to the display mode in use before you set destination. A dashed line con­nects own ship and the destination, which is marked with a flag, as shown in Figure 5-4.
5–1
Flag mark
Figure 5-4 Single destination set by cursor
Setting multiple destinations
The waypoints do not have waypoint num­bers, however you can attach waypoint numbers by doing the following.
1 Press [WPT RTE] and [5] to display the
route list.
2 Press or to select route number
entered.
3 Press s. 4 Enter waypoint number, in three digits.
1) Press [GOTO] and [1].
2) Place the cursor on the location desired for waypoint.
3) Press the [NU/CU ENT] key.
4) Repeat steps 2 and 3 to enter other points. Waypoints are connected with a line.
5) Press the [NU/CU ENT] key to finish. The route number entry display appears as shown in Figure 5-5. If no route number appears or you want to change the route number shown, go to step 6 to enter route number. To register the route under the number shown, go to step 8.
Enter route number
0 1
ENT:Enter MENU: Escape
Figure 5-5
5 Press ▼. If the waypoint number al-
ready exists the message shown in Fig­ure 5-7 appears.
This waypoint already exists Are you sure to change ? ENT:Yes MENU:No
Figure 5-7
6 Press the [NU/CU ENT] key. The
waypoint entered here replaces previ­ously entered waypoint.
Note: To cancel replacement of
waypoint, press the [MENU ESC] key at step 6.
7 Repeat steps 4 and 5 to enter other
waypoint numbers.
8 Press the [MENU ESC] key twice to
finish.
6) Key in route number.
7) Press the [NU/CU ENT] key. Waypoints are marked with flags and are connected with a dashed line.
If the route number entered already exists the message shown in Figure 5-6 appears.
Overwriting ? ENT:Yes MENU:No
Figure 5-6
8) Press the [NU/CU ENT] key.
5–2
When destination is cancelled, dashed lines are erased but flags remain on the screen.
Setting destination by MOB position or event position
Setting destination through waypoint list
Note: This operation cannot be performed
when there is no MOB position or event posi­tion. The buzzer sounds and the message shown in Figure 5-8 appears to alert you when there is no MOB position or event position.
No MOB/event data in memory
Figure 5-8
1) Press the [GOTO] key.
2) Press [2] to select MOB/Event Position. The display shown in Figure 5-9 appears.
[MOB] Displaying MOB data 34° 12.345' N 130° 23.456' E
[#01] Displaying event data 34° 12.345' N 130° 23.456' E
ENT:Enter
ENT: Enter
AUG 12' 94 19 : 25U
:Recall
AUG 12' 95 19 : 25U
MENU:Escape
: Paging
MENU: Escape
Figure 5-9
3) Press t or s to select MOB position or event position. The MOB position appears first. To select event position, press s. If selected position is within the current dis­play range, the cursor marks the position. (The cursor does not appear on the High­way, Navigation and Data displays.)
Note: A waypoint must exist to set it as des-
tination. When a waypoint does not exist, the buzzer sounds and the message shown in Fig­ure 5-10 appears.
No waypoint data
Figure 5-10
Destination waypoint can be set through the waypoint list two ways:
By entering waypoint number, and
By selecting waypoint by cursor
1) Press the [GOTO] key.
2) Press [3] to display the Waypoint List.
GOTO (Waypoint List)
Waypoint
Waypoint No.
No.
001 34° 12.345' N 132° 23.456' E
MARINE POINT AUG 12' 95 12:35U 002 ° 12.345' N 133° 12.345' E A POINT AUG 13' 95 13:28U
005 41° 34.567' N 135° 23.456' E B POINT AUG 14' 95 09:45U
No .
Waypoint number can be entered here when this line appears in reverse video.
List
ENT:Enter
4) Press the [NU/CU ENT] key. A flag ap­pears at position selected if it is within the current display range. A dashed line con­nects between own ship and MOB posi­tion or event position.
When destination is cancelled, dashed lines are erased but flags remain on the screen.
Figure 5-11 Waypoint list
Set destination by following 1 or 2 below.
1 1
1 Setting destination by waypoint no.
1 1
3) Enter waypoint number, in three digits. You can clear entry by pressing the [CLEAR] key.
4) Press the [NU/CU ENT] key.
Own ship position becomes starting point and a dashed line runs between it and the waypoint selected.
5–3
22
2 Setting destination by selecting wpt.
22
3) Press [
]. Each press of the key alter­nately enables manual entry of waypoint number and selection of waypoint num­ber by cursor (through the waypoint win­dow).
4) Press or ▼ to select waypoint.
5) Press the [NU/CU ENT] key. Own ship position becomes starting point and
a dashed line runs between it and the waypoint selected.
Route number can be entered here when this line appears in reverse video.
GOTO (Route List)
Route No.
No.
PTS
01
30
25
02 05
06
30 30
10
: No. List
1234. 56nm
234. 56nm
8
*
999. 99nm
6543. 21nm
TOTAL
57. 89nm
tFORWARDs
TTG
12D15H28M
2D08H35M 0D10H28M
*
9D23H59M
34D23H45M
Setting route as destination
Note: Route entered must exist to set it as
destination. The buzzer sounds and the mes­sage shown in Figure 5-12 appears if you set enter a route which does not exist.
No route data
Figure 5-12
A route to set as destination may selected through the route list two ways:
• By entering route number, and
• By selecting route.
1) Press the [GOTO] key.
2) Press [4] to display the Route List. Then, follow 1 or 2 in the adjacent column.
ENT:Enter
MENU:Escape
Figure 5-13 Route list
1 1
1 By entering route number
1 1
3) Press t or s to select direction which to traverse the route waypoints; forward or reverse.
4) Enter route number.
5) Press the [NU/CU ENT] key.
Current position becomes starting point. A solid line connects between the starting point and first route waypoint and a dashed line connects all other route waypoints.
22
2 By selecting a route
22
3) Press [
]. Each press of the key alter­nately enables manual entry of route num­ber and selection of route number (through the route window)
5–4
4) Press or to select route.
5) Press t or s to select direction in which to traverse the route waypoints; forward or reverse.
6) Press the [NU/CU ENT] key.
Current position becomes starting point. A solid line connects between the starting point and first route waypoint and a dashed line connects all other route waypoints.
Skipping route waypoints
You may skip route waypoints by displaying "DI" (DIsable) next to the route waypoint in the route list. Using Figure 5-14 as an ex­ample, your ship is currently heading toward waypoint 04 but is to switch course and head to waypoint 03. In this case you would want to skip waypoint 04.
2) Press or to select route waypoint to
skip.
3) Press t or s to shift the cursor to the right of the waypoint number.
4) Press [ ] to change "EN"(ENable) to "DI"(DIsable).
5) Press the [NU/CU ENT] key.
Waypoint 01
Port A
Port B
Waypoint 06
Waypoint 02
Waypoint 03
New course
Waypoint 04
Waypoint 05
Figure 5-14
1) Press [WPT RTE] and [5] to display the route list. Press the cursor keys to select route.
"EN" indicates waypoint is enabled. Display "DI" to skip waypoint.
ROUTE :01
(In Use, REVERSE)
To reselect the waypoint, select it on the route list and press [
] to change "DI" to "EN".
Route waypoints are mutually skipped when the navigators are sharing data.

5.2 Cancelling Destination

Destination is cancelled at both GPS naviga­tors when they are sharing data.
1) Press the [GOTO] key.
2) Press [5] to select Cancel. The message shown in Figure 5-16 appears.
Release GOTO ?
ENT:Yes MENU:No
skip Distance TTG
001
Trial Speed Auto Man (012.0kt)
01
01 0 04 EN
0
02 0 03 EN 345.67nm 2D 12H 34M
004
34° 12.345' N 130° 23.456' E MARINE POINT APR 10' 95 12:35U
003 36° 12.345' N 135° 23.456' E A POINT APR 10' 95 13:45U
: RTE WPT
ENT:Enter
nm
D M H
CLEAR: Delete
MENU:Escape
Figure 5-15 Route list
Figure 5-16
3) Press the [NU/CU ENT] key.
5–5

5.3 Erasing Route Waypoints

When flags are erased
(flags)
Flags are erased at both GPS navigators when they are sharing data.
1) Place the cursor on the flag to erase.
2) Press the [CLEAR] key. The message shown in Figure 5-17 appears if the waypoint is currently selected as destina­tion, is part of a registered route, or is part of the route currently being navigated.
1st line Are you sure to erase ? ENT:Yes MENU:No
This wpt is GOTO This wpt is in registered route This wpt is in selected route
When the origin waypoint is erased the waypoint before it becomes the origin waypoint. If there is no waypoint before the origin waypoint, current position becomes the origin waypoint.
Delete
Starting
point
Own ship
Destination waypoint
Course
Destination waypoint
Figure 5-17
3) Press the [NU/CU ENT] key.
Note: Flags can be erased collectively by
clearing the Plotter memory or both the Plot­ter memory and GPS memory. See page 9-1 for further details.
Figure 5-18 Route rearranged
after erasing flag
When a destination is erased, the waypoint which follows it becomes the destination. If there is no waypoint after the destination waypoint erased, route navigation is cancelled.
5–6
5.4 Finding Range and Bearing Between Two Points
Calculation Procedure
You can find the range and bearing between two points by two waypoints or two latitude and longitude positions.
3) Key in other waypoint number (000-
999).
3) Press to shift the cursor to the Trial
Speed line.
4) Press t or s to select Auto or Man. Auto uses ship's average speed to calcu­late time-to-go.
5) If you selected Man, enter speed.
1) Press [MENU ESC] and [5]. The MANUAL CALCULATION menu ap­pears.
MANUAL CALCULATION
From Waypoint No.
° . ’N ° . ’E
To Waypoint No.
° . ’N ° . ’E Trial speed : Auto Man ( . kt) Rng : . m Brg : . ° TTG: D H M
: Cursor
ENT : Calculation
MENU : Escape
: N/S, E/W
Figure 5-19 MANUAL CALCULATION menu
2) Choose two points by one the methods below.
Latitude and longitude positions
1) Press ▼.
6) Press the [NU/CU ENT] key. The range, bearing and time-to-go between
two points appear on the display. If data en­tered is wrong or insufficient the buzzer sounds and the message "INCOMPLETE DA T A" appears. If the data contains error , "*" and all nines appear as the calculation results.
7) Press the [MENU ESC] key.
Selecting course sailing method
The range and bearing to a destination are cal­culated by two ways; Great Circle or Rhumb Line. However, cross track error is calculated by rhumb line only.
Great Circle: The great circle courseline is the shortest course between two points on the surface of the earth. (Imagine stretching a piece of yarn between two points on the earth.) However, this course requires frequent change of heading to follow course faithfully.
2) If necessary press to switch from
North latitude and to South latitude vice versa.
3) Key in latitude.
4) If necessary press to switch from W est
longitude to East longitude and vice versa.
5) Key in longitude.
6) Press ▼.
7) Repeat 2-5 to enter other point. Waypoints
1) Key in first waypoint number (000-
999). (000 is reserved for own ship position.)
2) Press twice.
Rhumb Line: The rhumb line courseline is the straight line drawn between two points on a nautical chart. This course does not require frequent changes of heading however it is not the shortest since it follows the earth's curva­ture.
5 – 7
1) Press [MENU ESC] [9] and [1] to dis­play the PLOTTER SETUP menu.
PLOTTER SETUP
Memory Apportion Bearing Ref.
Mag Variation
Trk = 1000 / 2000Pt
True
Auto
(07° W)
Mag Man
(00° E)
R.L
User defined #1 SPD User defined #2 User defined #3 RNG User defined #4 BRG
ENT:Enter
MENU:Escape
CRS
G.CCalculation
Figure 5-20 PLOTTER SETUP menu
2) Press or to selection Calculation.
3) Press t or s to select R.L (Rhumb Line) or G.C (Great Circle).
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
5 – 8
6. SETTING UP
PLOTTER SETUP
Bearing Ref.
Auto
(07° W)
Man
(00° E)
ENT:Enter
MENU:Escape
Memory Apportion
Mag Variation
True
Trk = 1000 / 2000Pt
Mag
R.L
G.C
Calculation User defined #1 SPD
User defined #2 CSE User defined #3 RNG User defined #4 BRG
VARIOUS DISPLAYS

6.1 The Data Display

The user may select what data to display in four locations on the data display.
*ALT: Displayed only in 3D position fix­ing. *RT. DIST: Total distance from current position to ultimate destination. Appears when following a registered route or a cursor-created route. *VTD: When following a route, plus or minus appears next to indication to denote which direction the route is being traversed.
# Requires external sensor.
The data the user may display are;
• Altitude (ALT)*
• Average course (AVR CSE)
• Average speed (AVR SPD)
• Course (CSE)
• Course error (dCSE)
• Cross track error (XTE)
• Depth (W.DPT)#
• ETA to waypoint (ETA)
• Range to waypoint (RNG)
• Route time-to-go (RT .TTG)
• Speed (SPD)
• Time-to-go to waypoint (TTG)
• Total route distance (RT.DIST)*
• Trip distance (TRIP)
• Trip elapsed time (TRIP TM)
• Water temperature (W.TMP)#, and
• Velocity to destination (VTD)*
• ETA to route
SEP 12, 1995 23:59'59" U
POSITION
WGS84
RNG
31.23
SPD
12.3
User-defined display data #2
User-defined display window
12° 23.456' N 123° 23.456' E
nm
kt
User-defined display data #1
Figure 6-1 Data display
BRG
223.4°
CSE
123.4°
User-defined display data #4
DGPS 3D
TO : 001
MARINE POINT1
NEXT
: 002
MARINE POINT2
User-defined display data #3
1) Press [MENU ESC] [9] and [1] to dis­play the PLOTTER SETUP menu.
Figure 6-2 PLOTTER SETUP menu
2) Press ▲ or to select one of four of "User defined" (#1, #2, #3, #4).
3) Press t or s to select data to display.
4) Press the [NU/CU ENT] key. T o select the data to display at other user defined dis­plays, repeat steps 2 and 3.
5) Press the [MENU ESC] key.
6–1

6.2 Position Format

11
1 For Loran LOPs
11
Position can be displayed in latitude and lon­gitude, Loran C LOPs, or Decca LOPs, and the default format is latitude and longitude.
Selecting position format (L/L or LOPs)
1) Press [MENU ESC] [9] and [8] to dis­play the LOP SETUP menu.
LOP SETUP
Pos Display Lat / Long LOP
Pos Display
LOP Display LC DE LC Chain 7980 : 23-43 LOP -12.3us +0.34 us DE Chain 24:G - P LOP +0.80 Lane -1.00 Lane
(RED:1 GREEN:2 PURPLE:3)
MENU : Escape
Lat / Long
: Select
ENT : Enter
: +/–
Figure 6-3 LOP SETUP menu
2) Press or ▼ to select Pos Display.
6) Press to select LC Chain.
7) Key in GRI code referring to the Loran C chain list appears in the Appendix. If the GRI code is 9970, for example, press [9] [9] [7] [0].
8) Key in secondary code pair referring to the Loran C chain list in the Appendix.
9) Press ▼.
10)Key in correction value.
11) If necessary, press [
] to switch from
plus to minus or vice versa.
12)Press the [NU/CU ENT] key.
13)Press the [MENU ESC] key.
22
2 For Decca LOPs
22
6) Press to select DE Chain.
7) Key in Decca chain number referring to the Decca chain list in the Appendix. For the Europe chain, for example, press [0] [1].
3) Press t or s to select Lat/Long or LOP .
4) Press the [NU/CU ENT] key.
Displaying LOPs
1) Press [MENU ESC] [9] and [8].
2) Press or to select Pos Display.
3) Press t or s to select LOP.
4) Press to select LOP Display.
5) Press t or s to select LC (Loran C) or DE (Decca).
Follow 1 or 2 in the adjacent column ac­cording to selection in step 5.
8) Key in Decca lane pair. Red, [1]; Green [2], and Purple [3].
9) Press ▼.
10)Key in lane correction value.
11) If necessary, press [
] to switch from
plus to minus or vice versa.
12)Press the [NU/CU ENT] key.
13)Press the [MENU ESC] key.
6–2
Entering waypoints using LOPs
1) Press [WPT RTE] and [4].
2) Press [
WAYPOINT LIST (LOP, LC)
001
001 36365.2 59102.3 MARINE POINT AUG12' 95 12 : 35U
002 36512.3 59134.5 ___ A POINT AUG13' 95 13 : 45U
003 _ _ _ _ _ , _ _ _ _ _ _ , _ ___ _ _ _ _ _ _ _ _ _ _ _ _
004 _ _ _ _ _ , _ _ _ _ _ _ , _ ___ _ _ _ _ _ _ _ _ _ _ _ _
ENT : Enter
] to display LOPs.
: L/L LOP
: Edit
MENU : Escape
Figure 6-4 LOP display on the waypoint list
3) Press ▲ or to select waypoint number.
5) Key in LOP1 and LOP2, to enable calcu­lation.
6) Press to calculate LOPs. "Calculating" appears between parentheses during the calculation. Actual LOPs replace "Calcu­lating" upon completion of the calculation.
If the conversion fails, the message "Failed in Conversion" appears for three seconds. Press the [CLEAR] key and reenter the right LOP1 and LOP2.
7) Press t or s to select mark.
8) Press the [NU/CU ENT] key.
9) Enter comment, if desired.
10)Press the [NU/CU ENT] key twice. Waypoint data and date and time regis­tered appear.
4) Press t or s. Your display should look like one of the displays in Figure 6-5.
Edit=Waypoint : 001
LC8930 : 30 50 3 8931.2 58654.3 (34° 12.345' N 130° 23.456' E) Mark : Cmnt : MARINE POINT
ENT : Enter
DE : 32 (9C) RED GREEN 1 A:12.23 2H:24.35 (34° 12.345' N 130° 23.456' E) Mark : Cmnt : MARINE POINT
3
: Cursor
Loran C LOP input screen
Edit=Waypoint : 001
1
: Column
MENU : Escape
ABCDEFGHIJ fi 1, 2 ~ 9, 0
: Cursor
ENT : Enter
Decca LOP input screen
MENU : Escape
Figure 6-5 LOP input screens
: Column
6–3

6.3 Demo Display

The demo display provides simulated opera­tion of this unit. Own ship tracks, at the speed selected, a figure eight course, starting from position entered. All controls are operative; you may change course, enter marks, etc.
1) While pressing and holding down [NU/ CU ENT], turn on the power.
DEMO SETTING
BASE POSITION
_ _°
_ _._ _ _' N _ _ _°_ _._ _ _' W
SPEED
00.00kt
: Cursor
ENT: Enter
: Column : N/S, E/W
Figure 6-6 Simulation mode menu
2) Key in latitude of initial position.
3) If necessary, press [
] to switch from north latitude to south latitude or vice versa.
4) Key in longitude.
5) If necessary , press [
] to switch from east
longitude to west longitude or vice versa.
6) Press key.
7) Key in speed.
8) Press the [NU/CU ENT] key to start the simulation mode. The plotter display ap­pears and the simulation begins. After the test results appear, the Simulation Mode menu appears.
9) To quit the demo display, turn off the power.
All tracks, marks and data entered during the simulation are erased and default simulation mode settings restored.
6–4

7. ALARMS

7.2 Arrival Alarm, Anchor Watch Alarm

7.1 Overview

There are seven alarm conditions which gen­erate both aural and visual alarms.
When an alarm setting is violated, the buzzer sounds and the name of the alarm being vio­lated appears on the display. The alarm icon also appears on the Plotter 1, Plotter 2 and Highway displays. This occurs on both navi­gators when they are sharing data.
Alarm status is output to external equipment through the DATA1 port and the DAT A4 port when it outputs data in NMEA format.
34° 23.456´ N 135° 45.678´ E
Alarm message
DGPS 3D
BRG
234°
CSE
345°
Arrival alarm Speed alarm
Alarm icon
Press CLEAR to silence beep
Press CLEAR
Press CLEAR to close window
RNG
123
SPD
12.3
nm
kt
Arrival alarm
The arrival alarm informs you that own ship is approaching a destination waypoint. The area that defines an arrival zone is that of a circle which you approach from the outside of the circle. The alarm will be released if own ship enters the circle.
Alarm setting
Own ship's position
Destination waypoint
: Alarm range
Figure 7-2 How the arrival alarm works
1) Press the [MENU ESC] key.
2) Press [4] to display the ALARM SET­TINGS menu.
ALARM SETTINGS 1/2
Arrival/Anchor Arr. Anc. Off Alarm Range 0.100nm XTE On Off Alarm Range 0.050nm
Ship Speed
Ship Speed In Over Off Speed Rage 000.0 ~ 025.0kt Next Page
: Select
ENT : Enter
MENU : Escape
Over
Figure 7-1 Location of alarm
messages and alarm icon
Clearing the aural and visual alarms
Press the [CLEAR] key . When the navigators are sharing data, the "reset alarm signal" is transmitted to the other navigator to clear au­ral and visual alarms there.
Disabling an alarm
Select OFF instead of alarm name on the ap­propriate menu. This disables the alarm on both navigators when they are sharing data.
Figure 7-3 ALARM SETTINGS
menu, page 1/2
3) Press or to select Arrival/Anchor.
4) Press t or s to select Arr.
5) Press to select Alarm Range.
6) Key in alarm range (0.001–9.999 nm).
7) Press the [NU/CU ENT] key.
8) Press the [MENU ESC] key.
When own ship nears a waypoint by the range set here, the buzzer sounds and the message "Arrival alarm" appears.
7–1
Anchor watch alarm
7.3 Cross Track Error (XTE)
The anchor watch alarm sounds to warn you that own ship is moving when it should be at rest.
Alarm
setting
Own ship's position
Destination waypoint
: Alarm range
Figure 7-4 How the anchor
watch alarm works
Before setting the anchor watch alarm, set present position as destination waypoint, re­ferring to chapter 5.
1) Press [MENU ESC] and [4].
2) Press or to select Arrival/Anchor.
3) Press t or s to select Anc.
4) Press to select Alarm Range.
5) Key in alarm range (0.001–9.999 nm).
6) Press the [NU/CU ENT] key.
7) Press the [MENU ESC] key.
Alarm
The XTE alarm warns you when own ship is off its intended course.
Starting
waypoint
Own ship's position
Alarm setting
: Alarm range
Figure 7-5 How the XTE alarm works
1) Press [MENU ESC] and [4].
2) Press or to select XTE.
3) Press t or s to select On.
4) Press to select Alarm Range.
5) Key in alarm range (0.001–9.999 nm).
6) Press the [NU/CU ENT] key.
7) Press the [MENU ESC] key. When own ship strays from the intended track
by the range set here, the buzzer sounds and the message "Cross track error alarm" appears.
Destination waypoint
When own ship drifts by the range set here, the buzzer sounds and the message "Anchor alarm" appears.
7–2

7.4 Speed Alarm

7.5 Trip Alarm

The speed alarm sounds when ship's speed is lower or higher (or within) the alarm range set.
1) Press [MENU ESC] and [4].
2) Press or to select Ship Speed.
3) Press t or s to select In or Over.
In: Alarm sounds when speed is within range set.
Over: Alarm sounds when speed is higher or lower than range set.
4) Press to select Speed Range.
5) Key in low speed.
6) Key in high speed.
7) Press the [NU/CU ENT] key.
8) Press the [MENU ESC] key. When speed is higher or lower (or within) than
the speed set here, the buzzer sounds and the message "Speed alarm" appears.
The trip alarm sounds when the distance run is greater than the trip alarm setting.
1) Press [MENU ESC] and [4].
2) Press or ▼ to select Next Page. The menu shown in Figure 7-6 appears.
ALARM SETTINGS 2/2
To Previous Page
Trip (CLR:Reset)
On Off Trip Range 0123.00nm Water Temp. In Over Off Temp. Range +12.0 ~ +15.0°C Depth In Over Off Depth Range 0003.0 ~ 0200.0ft DGPS Alarm On Off
: Select
MENU : Escape
Off
Off
ENT : Enter
:
+/-
Figure 7-6 Alarm settings menu, page 2/2
3) Press or to select Trip.
4) If necessary, press [CLEAR] to reset the trip distance and trip elapsed time.
5) Press t or s to select On.
6) Press to select Trip Range.
7) Key in trip range.
8) Press the [NU/CU ENT] key.
9) Press the [MENU ESC] key.
When the ship's distance run is higher than the trip range set here, the buzzer sounds and the message "Trip alarm" appears.
7–3

7.6 W ater Temperature Alarm

7.7 Depth Alarm

The water temperature alarm sounds when the water temperature is higher or lower (or within) the preset temperature. This alarm re­quires a temperature signal from external equipment.
1) Press [MENU ESC] and [4].
2) Press or to select Water Temp.
3) Press t or s to select In or Over.
4) Press to select Temp. Range.
5) Key in low temperature.
6) Key in high temperature.
7) Press the [NU/CU ENT] key.
8) Press the [MENU ESC] key. When the water temperature is higher or lower
(or within) the preset value, the buzzer sounds and the message "W ater temp alarm" appears.
The depth temperature alarm sounds when the depth is higher or lower (or within) the preset depth. This alarm requires video sounder con­nection.
1) Press [MENU ESC] and [4].
2) Press or to select Depth.
3) Press t or s to select In or Over.
4) Press to select Depth Range.
5) Key in low depth.
6) Key in high depth.
7) Press the [NU/CU ENT] key.
8) Press the [MENU ESC] key. When the depth is higher or lower (or within)
the preset value, the buzzer sounds and the message "Depth alarm" appears.

7.8 DGPS Alarm

The DGPS alarm sounds when the DGPS sig­nal is lost. This alarm may be enabled or dis­abled as below.
1) Press [MENU ESC] and [4].
2) Press or to select DGPS Alarm.
3) Press t to select On, or sto select off.
4) Press the [NU/CU/ENT] key.
5) Press the [MENU ESC] key.
7–4

8. MENU SETTINGS

8.1 GPS Menu

Menu description
Fix mode
may change randomly depending on receiv­ing conditions and other factors. You can re­duce this random variation by increasing the smoothing. Like with latitude and longitude smoothing, the higher the speed and course smoothing the more smoothed the raw data. If the setting is too high, however, the response to speed and course change slows. For no smoothing, enter "0." "5" is suitable for most conditions.
Two position fixing modes are available: 2D and 2/3D. The 2D mode provides two dimen­sional position fixes (latitude and longitude only) and is used when three satellites are in line of sight of the GPS receiver.
The 2/3D mode switches between two and three dimension position fixing automatically depending on how many satellites (three or four) are in light of sight of the GPS receiver.
Disable satellite
Every GPS satellite is broadcasting abnormal satellite number(s) in the Almanac. Using this information, the GPS receiver automatically eliminates any malfunctioning satellite from the GPS satellite schedule. However, the Al­manac sometimes may not contain this infor­mation. You can disable an inoperative satellite manually on the GPS SETUP menu.
GPS smoothing, position
When the DOP or receiving condition is un­favorable, the GPS fix may change greatly, even if the vessel is dead in water. This change can be reduced by smoothing the raw GPS fixes. A setting between 0 and 9 is available. The higher the setting the more smoothed the raw data, however too high a setting slows response time to change in latitude and longi­tude. This is especially noticeable at high ship’s speeds. "0" is the normal setting; in­crease the setting if the GPS fix changes greatly.
GPS smoothing, speed
Speed average
Calculation of ET A and TTG, etc. is based on average ship’ s speed over a given period. The default setting is one minute.
Geodetic datum
Select the geodetic chart system you are us­ing. WGS-84 (standard GPS chart system) and NAD 27 can be directly selected. For other charts, select "OTHER" and enter chart num­ber referring to the geodetic chart list in the Appendix.
Position offset
You may apply an offset to position gener­ated by the internal GPS receiver, to compen­sate for difference between GPS position and chart position.
Time difference
The GPS system uses UTC time. If you would rather use local time, enter the difference in hours between local time and UTC. Use the [+] and [–] keys for times later or earlier than UTC, respectively.
Position
Enter ship's position when cold starting (no satellite information in memory) the GPS re­ceiver, to fix position faster . Accuracy should be within 10°.
During position fixing, ship’ s velocity (speed and course) is directly measured by receiving GPS satellite signals. The raw velocity data
8–1
Setting up the GPS menu
GPS position smoothing
Fix mode
1) Press [MENU ESC] [9] and [6] to dis­play the GPS SETUP menu.
GPS SETUP 1/2
Fix mode 2D 2/3D Disable satellite 12 (1-32) GPS Smoothing Posn 0 0 0 (000-999 sec) Spd 0 0 5 (000-999 sec) Speed Average 01 minute To Next Page
MENU : Escape
Posn
0
: Select
ENT : Enter
Figure 8-1 GPS SETUP menu, page 1/2
2) Press or to select Fix mode.
3) Press t or s to select fix mode desired.
4) Press to change other settings, or press [MENU ESC] to register settings and es­cape.
Disabling satellites
When the navigators are sharing data, satel­lites are disabled on both navigators.
1) Press [MENU ESC] [9] and [6].
2) Press or to select Posn.
3) Enter smoothing factor in three digits (001–999).
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
GPS speed smoothing
1) Press [MENU ESC] [9] and [6].
2) Press or to select Spd.
3) Enter smoothing factor in three digits (001–999).
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
Speed averaging
1) Press [MENU ESC] [9] and [6].
2) Press or to select Speed Average.
3) Enter smoothing factor in two digits (00–
99).
4) Press the [NU/CU ENT] key.
1) Press [MENU ESC] [9] and [6].
2) Press or to select Disable satellite.
3) Key in satellite number, in two digits (01–
32). Three sets of satellite numbers may be entered.
4) Press the [NU/CU ENT] key . If an invalid number is entered the buzzer sounds.
5) Press the [MENU ESC] key.
Note: To enable all disabled satellites, press
the [CLEAR] key at step 3. All satellite num­bers on the Disable satellite line are erased.
5) Press the [MENU ESC] key.
Geodetic datum
1) Press [MENU ESC] [9] and [6].
2) Press or ▼ to select Geodetic Datum
on page 2/2.
GPS SETUP 2/2
To Previous Page
Geodetic Datum WGS84
Geodetic Datum WGS84 NAD27 OTHER (005) Posn Offset 0.000' N 0.000' E Time Diff. +09: 00 Posn 12° 36.789' N 112° 47.890' E
: Select
MENU : Escape
ENT : Enter
: +/—
Figure 8-2 GPS SETUP menu, page 2/2
8–2
3) Press t or s to select geodetic datum to use. For geodetic datum other than WGS­72 or NAD-27, select OTHER and key in chart number (001–171) referring to the geodetic chart list in the Appendix.
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
Position offset
If you do not know the type of chart you are using, GPS position may be wrong. Note the difference in position when moored to a pier and enter it on the GPS SETUP menu, to get correct position.
1) Press [MENU ESC] [9] and [6].
2) Press ▲ or to select Posn Offset on page 2/2.
Position
After the unit is installed you may enter posi­tion to shorten the time it takes to find posi­tion. (It takes about two minutes when there is no position data entered.)
1) Press [MENU ESC] [9] and [6].
2) Press or to select Posn on page 2/2.
3) If necessary, press [
] to switch from north latitude to south latitude or vice versa. Key in latitude.
4) If necessary, press [
] to switch from east longitude to west longitude or vice versa. Key in longitude.
5) Press the [NU/CU ENT] key.
6) Press the [MENU ESC] key.
3) If necessary press [
] to switch from north latitude to south latitude or vice versa.
4) Key in latitude correction.
5) If necessary press [
] to switch from east
longitude to west longitude or vice versa.
6) Key in longitude correction.
7) Press the [NU/CU ENT] key.
8) Press the [MENU ESC] key.
Time difference
1) Press [MENU ESC] [9] and [6].
2) Press ▲ or to select Time Diff on page
2/2.
3) Key in time difference (–14:00 to +14:00).
4) Press [
] to change from plus to minus
or vice versa.

8.2 Units of Measurement

Unit of distance
Distance can be displayed in nautical mile, kilometer or statute mile as follows.
1) Press [MENU ESC] [9] and [2]. The UNIT SETUP menu appears.
UNIT SETUP
m
m
km sm
ft FA
° F
ft
Unit of Distance
Unit of Depth Unit of Temp. Unit of Altitude
ENT : Enter
nm
° C
: Select
MENU : Escape
Figure 8-3 UNIT SETUP menu
2) Press or to select Unit of Distance.
5) Press the [MENU ESC] key.
3) Press t or s to select unit; nm, km or sm.
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
8–3
Unit of depth
8.3 Size and Brilliance of
1) Press [MENU ESC] [9] and [2].
2) Press or to select Unit of Depth.
3) Press t or s to select unit; meter, feet, or fathom.
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
Unit of water temperature
1) Press [MENU ESC] [9] and [2].
2) Press or to select Unit of Temp.
3) Press t or s to select unit; Centigrade or Fahrenheit.
4) Press [NU/CU ENT] and [MENU ESC].
Unit of altitude
Available only in 3D mode.
Markers
The DISPLAY SETUP menu lets you select the size and brilliance of various markers.
Grid tone
The grid can be displayed in light or dark tone, or turned off.
1) Press [MENU ESC] and [1]. The DIS­PLAY SETUP menu appears.
DISPLAY SETUP
Grid Course Bar Time mark
Time Mark
Waypoint Size Cursor Size
ENT : Enter
Dark Dark
Dark
Dark Large Large
: Select
Light Light Light Small Small
MENU : Escape
Off Off Off
1) Press [MENU ESC] [9] and [2].
2) Press or to select Unit of Altitude.
3) Press t or s to select unit.
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
Figure 8-4 DISPLAY SETUP menu
2) Press or to select Grid.
3) Press t or s to select brilliance.
4) Press [NU/CU ENT] and [MENU ESC].
Course bar tone
The course bar can be displayed in light or dark tone, or turned off.
1) Press [MENU ESC] and [1].
2) Press or to select Course Bar.
3) Press t or s to select brilliance.
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
Time mark tone
8–4
The time mark can be displayed in light or dark tone, or turned off.
1) Press [MENU ESC] and [1].
2) Press or to select Time Mark.
3) Press t or s to select brilliance.
4) Press the [NU/CU ENT] key.
SEP 12, 1995 23:59'59" U DGPS 3D
N12°
E123°
POSITION
23.456'
23.456'
SEP 12, 1995 23:59'59" U DGPS 3D
12° 23.456' N 123° 23.456' E
POSITION
RNG
31.23
nm
SPD
12.3
kt
BRG
223.4°
CSE
123.4°
TO : 001
MARINE POINT1
NEXT : 002
MARINE POINT2
ZOOM
IN
ZOOM
OUT
Cursor
Position
User-defined display window
WGS84
WGS84
Enlarging characters
5) Press the [MENU ESC] key.
Waypoint mark size
The size of the waypoint mark can be selected to large or small.
Large waypoint mark
No icon With icon
12
12
Small waypoint mark
Figure 8-5 Waypoint mark size
The size of the indications of position or user defined display areas can be enlarged on the Data display.
1) On the Data display, with no enlarged characters, press the [CURSOR ON/OFF] key to turn on the cursor.
2) Operate the cursor keys to select data to enlarge in the window.
3) Press the [ZOOM IN] key.
T o switch character size from enlarged to nor­mal, press the [ZOOM OUT] key at step 3.
1) Press [MENU ESC] and [1].
2) Press or to select Waypoint Size.
3) Press t or s to select Large or Small.
4) Press [NU/CU ENT] and [MENU ESC].
Cursor size
The size of the cursor can be selected to large or small.
Large cursor Small cursor
Figure 8-6 Cursor size
1) Press [MENU ESC] and [1].
2) Press or to select Cursor Size.
3) Press t or s to select Large or Small.
4) Press the [NU/CU ENT] key.
5) Press the [MENU ESC] key.
Figure 8-7 How to enlarge
indications on the data display
8–5

8.4 Outputting Data

Besides its fundamental function of display­ing position, the DD-80 can also receive data and output data to external equipment, through an interface unit. Before outputting data to ex­ternal equipment, first determine what data the external equipment requires. Output only necessary data to ensure data will be output correctly.
All data transmitted by marine electronics equipment are prefixed with a two character code called a talker. The same talker must be shared by the transmitting and receiving equipment to transmit and receive data suc­cessfully . The DD-80 transmits data using the GP (GPS talker), Loran (LC) or Decca (DE) talker.
2) Press or to select Data Fmt.
3) Press t or s to select NMEA 0183 (V1.5 or V2.0) or IEC 61162-1.
4) Press the [NU/CU ENT] key. Talker ID appears in reverse video.
5) Press t or s to select GP , LC or DE.
6) Press the [NU/CU ENT] key.
7) Enter Tx interval for each output data sen­tence in line 1. Tx interval is available in 00, 01, 02, 03, 04, 05, 06, 10, 15, 20, 30, 60 and 90 (seconds).
8) Press the [NU/CU ENT] key.
9) Enter Tx interval for each output data sen­tence in lines 2 through 5. Press the [NU/ CU ENT] key after setting each line.
If the external equipment does not recognize the GP talker use one it does regcognize, like LC.
DATA 1 output setting
1) Press [MENU ESC] [9] and [3]. The DATA 1,3 OUTPUT SETUP menu ap­pears.
DATA 1, 3 OUTPUT SETUP
Data Fmt. V1.5 V2.0 IEC
Talker ID GP LC DE Output Data (00-90 sec)84%
1. AAM:00 APA:00 APB:01 BOD:00
2. BWC:00 BWW:00 GGA:01 GLL:00
3. RMB:01 RMC:01 VTG:01 WCV:00
4. WNC:00 WPL:00 XTE:00 ZDA:01
5. GNS:00 ZTG:00 Rnn:00 RTE:00 DATA3. Log Pulse 200ppm 400ppm
ENT : Enter
Settings shown here are default settings.
This line appears only when LOG is selected by internal jumper wires.
200ppm
MENU : Escape
Figure 8-8 DATA 1 OUTPUT
SETUP menu
For detailed information about Tx interval see the installation manual. However, the Tx in­terval settings entered by the installer of the equipment should not be changed unless ab­solutely necessary.
BWC and WNC are for great circle naviga­tion and BWR and WNR are for rhumb line. However, all output data are calculated by rhumb line.
The total data output are shown by percent­age on the third line. For best results the total output should not exceed 90%; lengthen the Tx interval of less important data to make the total output less than 90%.
DATA 3 output setting
The DA T A 3 connector can output IEC 61 162­1/NMEA 0183 data or log pulse. For NMEA 0183,IEC 61162-1 the same data output by DATA 1 is output from DATA 3.
For log pulse, select 200 or 400 pulse per sec­ond depending on the device connected.
1) Press [MENU ESC] [9] and [3].
2) Press or ▼ to select DATA 3 or Log
Pulse.
3) For log pulse, press t or s to select log pulse of external equipment; 200 ppm or 400 ppm.
8-6
4) Press the [NU/CU ENT] key twice.
Setting DATA 4 to Data Output
8.5 Receiving Data from
The DATA 4 port connects to a personal com­puter, DGPS receiver or YEOMAN equip­ment.
1) Press [MENU ESC] [9] and [5]. The DATA 4 I/O SETUP (1/2) menu appears.
DATA 4 I/O SETUP 1/2
DATA 4. Level
DATA 4. Level RS232C RS422 Data Out Com. DGPS To Next Page
ENT : Enter
RS232C
: Select
MENU : Escape
Figure 8-9 DATA 4 I/O SETUP menu (1/2)
2) Press or to select Level.
3) Press t or s to select level of external equipment; RS232C or RS422.
4) Press the [NU/CU ENT] key.
5) Press t or s to select Out.
6) Press ▼ to select To Next Page. The DA T A 4 I/O SETUP (2/2) menu appears.
DATA 4 I/O SETUP <Out> 2/2
To Previous Page
Data Fmt. V1.5 V2.0 IEC
Talker ID GP LC DE Output Data (00-90 sec) 84%
1. AAM:00 APA:00 APB:01 BOD:00
2. BWC:00 BWW:00 GGA:01 GLL:00
3. RMB:01 RMC:01 VTG:01 WCV:00
4. WNC:00 WPL:00 XTE:00 ZDA:01
5. GNS:00 ZTG:00 Rnn:00 RTE:00
ENT : Enter
MENU : Escape
Figure 8-10 DATA 4 I/O SETUP menu (2/2)
7) Follow "DA TA 1 output setting" from step
2.
Personal Computer
Loading waypoint/route data
W aypoints and routes data can be downloaded from a personal computer, through the DAT A 4 connector.
1) Press [MENU ESC] [9] and [5].
2) Press or to select Level.
3) Press t or s to select level of personal computer; RS232C or RS422.
4) Press the [NU/CU ENT] key.
5) Press s to select Com.
6) Press to select T o Next Page. The DA T A 4 I/O SETUP menu appears.
DATA 4 I/O SETUP <Com.> 2/2
To Previous Page Baud Rate 9600 bps
Load Data L.House* WPT/RTE WPT
Command Stop Start Save Data WPT/RTE Command Stop Start
: Select
ENT : Enter
Figure 8-11 DATA 4 I/O SETUP menu (2/2)
7) Press or to select Baud Rate.
8) Press t or s to select baud rate; 400 bps, 9600 bps, or 19200 bps.
9) Press the [NU/CU ENT] key.
10)Press t or s to select WPT/RTE.
11)Press to select Command. Stop, on the same line as Command, appears in reverse video.
12)Press sto select Start. The message shown in Figure 8-12 appears.
MENU : Escape
*: Not used.
Loading erases current data and stops Route navigation Are you sure to load?
ENT: Yes MENU: No
Figure 8-12
8-7
13) Press the [NU/CU ENT] key. The mes­sage shown in Figure 8-13 appears.
Loading waypoint data from YEOMAN equipment
Now loading Waypoint/Route data !
MENU:Stop
Figure 8-13
14) Operate the computer to output data. When data is loaded, the cursor shifts to Stop.
15)Press the [MENU ESC] key. When data is loaded successfully, The message in Figure 8-14 appears.
Loading ended successfully
Press any key
Figure 8-14
If data could not be loaded, the message shown in Figure 8-15 appears.
Failed in loading Invalid data Press any key
Figure 8-15
Stopping loading of data
1) Press the [MENU ESC] key . The message shown in Figure 8-16 appears.
1) Do steps 1 through 9 in "Loading light­house data."
2) Press t or s to select WPT.
3) Press to select Command.
4) Press s to select Start. The message shown in Figure 8-17 appears.
Are you sure to load ?
ENT: Yes MENU:No
Figure 8-17
5) Press the [NU/CU ENT] key. The mes­sage shown in Figure 8-18 appears.
Now loading Waypoint data !
MENU:Stop
Figure 8-18
6) Operate the YEOMAN to output data. When data is loaded, the cursor automati-
cally shifts to "Stop". Waypoints are loaded into empty areas. When the waypoint area becomes full, the message shown in Figure 8-19 appears.
Waypoint area is full ! Can't load any data Press any key to stop
Are you sure to stop ?
ENT: Yes MENU:No
Figure 8-16
2) To quit loading, press the [NU/CU ENT] key. The cursor shifts to Stop.
3) To start loading, select Start.
4) Press the [NU/CU ENT] key.
8-8
Figure 8-19
7) When the data is loaded, press [CU/NU ENT] and [MENU ESC]. The message shown in Figure 8-20 appears.
The number of valid and invalid waypoints appears in the message.
Loading completed Valid waypoint : 0 Invalid waypoint : 0 Press any key
Figure 8-20
8) Press the [MENU ESC] key twice.
8.6 DGPS Settings
Saving data to personal computer
Waypoint and route data can be saved to a personal computer.
1) Press [MENU ESC] [9] and [5].
2) Press or to select Level.
3) Press t or s to select level; RS232C or RS422.
4) Press the [NU/CU ENT] key. "Data" ap­pears in reverse video.
5) Press s to select Com.
6) Press to select Next Page.
7) Press or to select Baud Rate.
8) Press t or s to select baud rate; 400bps, 9600bps, or 19200bps.
9) Press to select Command (under the Save Data line). Stop, on the same line as Command, appears in reverse video.
10)Press s to select Start. The message shown in Figure 8-21 appears.
Are you sure to save ?
ENT: Yes MENU:No
A DGPS beacon receiver may be connected to the DD-80 to further refine position accu­racy. Set up to receive the DGPS beacon sig­nal as follows.
Selecting DGPS station
The default setting is "manual".
Automatic
The DGPS beacon receiver can automatically select optimum reference station by feeding it position data. If it takes more than 5 min­utes to fix DGPS position at the automatic mode, switch to manual mode. Use at manual mode when a external beacon receiver has no automatic function of station selection.
1) Press [MENU ESC] [9] and [7] to dis­play the DGPS SETUP menu.
Frequency appears when "MAN" is selected.
DGPS SETUP
DGPS MODE On Off
Ref. Station
Ref. Station Auto Man (ID= ) Freq. 288.0kHz Baud Rate 200 bps
Auto
Figure 8-21
11) Press the [NU/CU ENT] key. The mes­sage shown in Figure 8-22 appears while data is being saved.
Now saving Waypoint/Route data !
MENU:Stop
Figure 8-22
12)Save data at the computer.
13)Press the [MENU ESC] key. When data is saved, the cursor shifts to Stop.
14)Press the [MENU ESC] key.
: Select
ENT : Enter
MENU : Escape
Figure 8-23 DGPS SETUP menu
2) Set DGPS MODE On.
3) Press or to select Ref. Station.
4) Press t or s to select Auto.
5) Press the [NU/CU ENT] key.
6) Press the [MENU ESC] key.
8-9
Manual selection of DGPS station
8.7 GPS Monitor Display
Manual
Enter four digit ID number, frequency and baud rate of station.
Reference
• ID number: Appendix at end of this manual
• Frequency, baud rate : "DGPS REFER­ENCE LIST"
1) Press [MENU ESC] [9] and [7] to dis-
play the DGPS SETUP menu.
2) Press or to select Ref. Station.
3) Press t or s to select Man.
4) Enter four digit ID number . You can clear
an entry by the [CLEAR] key . If the num­ber entered is invalid, the buzzer sounds and the message "INVALID ID" appears on the display for three seconds.
If there is no ID number, press the [CLEAR] key.
5) Press the [NU/CU ENT] key.
6) Enter frequency in four digits (283.5 kHz
to 325.0 kHz).
7) Press the [NU/CU ENT] key . "Baud Rate"
appears in reverse video.
8) Press t or s to select baud rate; 25, 50,
100 or 200 bps.
9) Press the [MENU ESC] key.
Three GPS monitor displays provide GPS in­formation:
Satellite monitor which shows position of
GPS satellites
Beacon receiver monitor which displays
DGPS beacon station information
DGPS beacon station message monitor
which displays messages received from beacon stations
To display the GPS monitor displays;
1) Press [MENU ESC] [7].
2) Press [ ] to display the GPS monitor you want to view.
3) Press the [MENU ESC] to escape.
Number, bearing and elevation angle of all satellites in view of the GPS receiver appear. Satellites being used in fixing position are circled with a solid line; satellites not being used in fixing position are circled with a dashed line.
Satellite distribution
Aug 21 1995 23:59'59" U
01
WE
31
09
Fixing date and time
N
24
12
08
19
18
16
DGPS 3D
SV (PRN)
30
01 12
31 16 18
19
09
08
24
GPS fix state
40
SNR
50
8-10
:BEACON RCVR MONITOR
S
MENU:Escape
Satellite number with circle is used for positioning.
Receive signal level
(When signal level is more than 35, it is used for positioning.)
SATELLITES MONITOR
DOP:1.5
DOP value
Aug 21 1995 23:59'59" U
BEACON STATION
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
NAME:
ID: _ _ _ _ Bit Rate: _ _ _ bps
Sig Strength: _ _ dB
DGPS 3D
Health: _ _ Freq: _ _ _ . _ kHz SNR: _ _ dB
DGPS DATA: Good BEACON STATION:
:STATION MESSAGE
MENU:Escape
DGPS data and DGPS
station receiving condition
BEACON RECEIVER MONITOR
Aug 21 1995 23:59'59" U
Message:
STATION IS OPERATING.
:SATELLITES MONITOR
MENU:Escape
Good
DGPS station
data
DGPS 3D
STATION MESSAGE
Return to SATELLITES MONITOR
Figure 8-24 GPS monitor displays
8-11
This page is intentionally left blank .

9. MAINTENANCE & TROUBLESHOOTING

9.1 Clearing the Memory

Clearing the GPS memory
The GPS memory stores GPS information, including the Almanac. When you clear the GPS memory, all GPS information is erased.
1) Press [MENU ESC] [9] and [9] to dis­play the CLEAR MEMORY menu.
The DD-80 has two memories: GPS memory and plotter memory.
Clearing the plotter memory
The plotter memory holds plotted track and mark data. When you clear the plotter memory, all track and marks are cleared and all corresponding defaults settings are re­stored.
1) Press [MENU ESC] [9] and [9] to dis­play the CLEAR MEMORY menu.
CLEAR MEMORY
Clear Plotter No Yes
Clear GPS
Clear GPS No Yes Clear All No Yes
MENU : Escape
No
: Select
2) Press or ▼ to select Clear GPS.
3) Press s to select Yes. The following mes­sage appears.
Setting for cold start Are you sure to clear ? ENT:Yes MENU:No
Figure 9-3
4) Press the [NU/CU ENT] key.
Clearing GPS and plotter memories
To clear both GPS and plotter memories;
1) Press [MENU ESC] [9] and [9] to dis­play the CLEAR MEMORY menu.
2) Press or ▼ to select Clear All.
3) Press s to select Yes. The message shown in Figure 9-4 appears.
Figure 9-1 CLEAR MEMORY menu
2) Press or to select Clear Plotter.
3) Press s to select Yes. The following mes- sage appears.
Clear tracks and marks Are you sure to clear ? ENT:Yes MENU:No
Figure 9-2
4) Press the [NU/CU ENT] key.
Setting for default Are you sure to clear ? ENT:Yes MENU:No
Figure 9-4
4) Press the [NU/CU ENT] key.
Note: The equipment may lock after clearing
GPS and plotter memories. Reapply power to the equipment to restore normal operation.
9–1

9.2 Preventative Maintenance

Regular maintenance is necessary to maintain performance. Check the items mentioned be­low monthly to keep the equipment in good working order.
Antenna unit
Check for fixing bolts for tightness.
Antenna cable
Check connector for tightness, rust, damage and water leaks.
Power cable
Check for tight connection.
Ground terminal
GPS No fix
Figure 9-5 GPS error message
This message may appear when there is an interfering object between the satellite and GPS receiver (for example, mast) or the an­tenna cable is disconnected.
DOP error
When PDOP value exceeds 6 in the 3D mode, or HDOP value exceeds 4 in the 2D mode, this error occurs and following indication ap­pears.
DOP Error
Check for rust and tight connection.
Fuse
The 2A fuse in the power cable protects the unit from overvoltage and equipment fault. If the fuse blows, find out the cause before re­placing the fuse. If the fuse blows after re­placement, request service.
CAUTION
Use of a wrong fuse can cause permanent equipment damage.

9.3 Error Messages

Error messages appear on the display to alert you to possible trouble.
Figure 9-6 DOP error message
DGPS error
When DGPS data contains errors or the DGPS beacon station is experiencing transmitting problems, the message shown in Figure 9-7 appears.
DGPS error
Figure 9-7 DGPS error message
Self test error message
If the self test (conducted when turning on the power) finds equipment error, the mes­sage shown in Figure 9-8 appears.
GPS error
When GPS signal is suddenly lost and posi­tion cannot be calculated within one minute the message shown in Figure 9-5 appears.
9–2
GPS No fix GPS SELFTEST error XX
Figure 9-8 Self test error message
If the self test error message appears, consult your dealer for advice.

9.4 Troubleshooting

The table which follows provides troubleshooting procedures which you can follow to restore normal operation. If normal operation cannot be restored, ask your dealer for advice.
Table 9-1 Troubleshooting table
If... Then...
you cannot turn on the power
position cannot be fixed • check antenna cable for tight connection and water leakage.
position is wrong • check if correct geodetic chart is entered: [MENU ESC] [9] [6]
position sometimes cannot be fixed
data cannot be transmitted to external equipment
• check power connector for tight connection.
• check if ship's mains is off.
• check for blown fuse.
• check if functional satellite has been disabled: [MENU ESC] [9] [6]
• apply position correction to GPS position: [MENU ESC] [9] [6]
• DOP figure may be too small. Enter larger figure; 20 is the usual setting.
• check if data format is correct: [MENU ESC] [9] [3] ([9] [4] or [9] [5]) See the installation manual for further details.
• Tx interval may be set to "0". Select proper interval: [MENU ESC] [9] [3] ([9] [4] or [9] [5]) See the installation manual for further details.
• Check appropriate settings on external equipment.
• Check connections: DD-80 Ext. equipment TXD-H RXD-H TXD-C RXD-C
9–3

9.5 Diagnostic Tests

Memory and I/O port test
1) Press [MENU ESC] and [8] to display the SELF TESTS menu.
DA T A 1 POR T , DATA 2 POR T and DAT A 4 PORT show results of communication interface test. A special test connector is required to test those ports. NG appears as the results of the self test when there is no test connector attached.
SELF TESTS
1. Memory, I/O Port Test
2. Keyboard Test
2. Keyboard Test
3. Test Pattern
4. Automatic Testing GPS PROGRAM No. 4850237002
NAV PROGRAM No. 2051513-01.01 BOOT PROGRAM Code B
:Cursor
ENT:Enter
Figure 9-9 SELF TESTS menu
2) Press [1].
MEMORY, I/O PORT TEST
PROGRAM MEMORY SRAM Internal Battery DATA 1 PORT DATA 2 PORT DATA 4 PORT GPS BEACON
MENU:Escape
OK OK OK NG NG NG OK OK
4) Press the [MENU ESC] key to escape.
Keyboard test
1) Press [MENU ESC] [8] and [2] to dis­play the KEYBOARD TEST screen.
KEYBOARD TEST
Press CLEAR 3 times to escape
Figure 9-11 KEYBOARD TEST screen
2) Press each key one by one. A key's corre­sponding location on the screen lights in reverse video if the key is normal.
MENU:Escape
Figure 9-10 MEMORY, I/O PORT
TEST display
3) When testing is finished, press the [MENU ESC] key to escape and return to the Self Test menu. (Testing continues if the key is not pressed.)
OK appears to the right of PROGRAM, SRAM and Internal Battery when those devices are normal; NG (No Good) ap­pears when an abnormality is found.
OK appears to the right of GPS and BEA­CON when they are normal; NG and 16 hexadecimal figure appear when an ab­normality is found.
Whenever NG or 16 hexadecimal figure appears contact your dealer for advice.
3) To quit the keyboard test, press the [CLEAR] key three times. Control is re­turned to the SELF TESTS menu.
4) Press the [MENU ESC] key.
9-4
Display test
Automatic testing
1) Press [MENU ESC] [8] and [3] to dis­play the test pattern screens.
2) To change the test pattern, press the [NU/ CU ENT] key. Each time the key is pressed one of the patterns shown in Fig­ure 9-12 appears.
TEST PATTERN
ENT:Pattern MENU:Escape
This feature conducts all self tests continu­ously.
1) Press [MENU ESC] [8] and [4]. Self tests are conducted continuously in the order of memory , I/O test, keyboard test and test pattern.
2) To stop testing, press the [MENU ESC] key.
3) Press the [MENU ESC] key.
Figure 9-12 Test patterns 1 and 2
3) T o quit the test pattern, press the [CLEAR] key three times. Control is returned to the SELF TESTS menu.
4) Press the [MENU ESC] key.
9–5
This page is intentionally left blank .
10. INTRODUCTION
.
n

TO GPS

10.2 How the GPS Receiver Calculates Position

The basic steps in position fixing are as fol­lows:

10.1 What is GPS?

GPS is an acronym meaning Global Position­ing System. GPS is a highly precise satellite navigation system developed by the U.S. De­partment of Defense.
A constellation of 24 satellites emplaced in nearly 20,000-kilometer high 12-hour circu­lar orbits provides highly precise, continuous, worldwide, all-weather position plus time and velocity information to GPS receiver­equipped vehicles, vessels and aircraft.
All GPS satellites transmit at the same fre­quency of 1575.42 MHz, and each satellite has a unique signal coding scheme, so that it can be identified by a GPS receiver .
1) GPS satellites continually transmit their own precise orbital data called ephemeris. The GPS receiver computes satellites’ position by this data.
2) The GPS receiver measures very accurate distance to the satellites.
3) The GPS receiver fixes its position by the intersecting point of three satellite posi­tions.
d2
d1
d3
Figure 10-1 GPS satellite orbital pattern
Position fix
1 Satellites locations are measured 2 Distances are measured. 3 Position fix is point of intersection
of three spheres which are draw around the three satellites with diameter d1, d2 and d3.
Figure 10-2 How the GPS
receiver calculates position
10–1
10.3 What is Differential GPS (DGPS)?
GPS satellite
Differential GPS is based upon accurate knowledge of the accurate geograhical loca­tion of a reference station which is used to compute corrections to GPS parameters, er­ror sources and resultant positions. These dif­ferential corrections are transmitted to GPS users, who apply the corrections to their re­ceived GPS signals or computed position. For civil users, differential corrections can im­prove navigational accuracy from 100 meters to better than 3 meters.
The DPGS reference stations, located through­out North America and Europe, are fixed at a geodetically surveyed position. The reference station tracks all satellites in view , downloads ephemeric data from them, and computes cor­rections based on its measurement and geo­detic position. These corrections are then broadcast to GPS users by radio beacons to improve their position solution.
Corrections sent
to users
Reference
station
Figure 10-3 DGPS system concept
The radio beacons broadcast in the frequency range of 285–325 kHz and have a transmit­ting range from 40 nm to 300 nm depending on radio beacon.
10–2
Specifications of DD-80
GPS Receiver
Number of receiving channels 12 channels, 12 satellite tracking Rx frequency 1575.42 MHz Rx code C/A code Antenna Flat antenna Position fixing system All in view, 8-state Kalman filter Position accuracy Approx. 10m, 95% of the time, Horizontal dilution
of position (HDOP) 1
Note: All GPS receiver are subject to degradation of position and velocity accuracies under the U.S. Department of Defence. Position may be degraded.
DGPS: Approx. 5 m, 95% of the time Tracking velocity 900 kts Position-fixing time Warm start: 20 seconds
Cold start: 2 minutes
Position update interval 1 second
Display Section
LCD 122 x 92 mm (320 x 240 dot matrix) Display mode Plotter modes 1 and 2, Highway, Navigation Data Display Mercator projection
Track recording capacity: 2,000 pts. Buoy graphic (option)
YEOMAN waypoint display Waypoint storage capacity 999 pts. with comment (12 character) Route storage capacity 30 routes (30 waypoints per route)
Simple route: 1 route/30 waypoints Event mark storage capacity 99 points Alarms Waypoint arrival, Anchor watch, Cross track error,
Speed, Trip, Water temperature, Depth
A-1
Data Input/Output
Number of ports 4 I/O ports Input data format IEC 61162-1/NMEA 0183 Input data NMEA 0183: AGFPA, DBT, DPT, MTW, TLL
DPGS; RTCM SC104 Ver. 2.1 Universal data from personal computer.
Output data IEC 61162-1/NMEA 0183 (Ver. 1.5/Ver. 2.0):
AAM, APA, APB, BOD, BWC, BWR, BWW, GGA, GLL, GNS, RMB, RMC, VTG, WCV, WNC, WNR, WPL, XTE, ZDA, ZLG, ZTG, Rnn, RTE, DTM (IEC 61162-1)
Power Supply & Environmental Conditions
Power supply and power consumption 10.2 to 31.2 V DC, less than 10 W Useable environment GPS antenna unit: -25°C to +70°C
Display unit:-15°C to +55°C
Humidity 95% (40°C) Waterproofing specification GPS antenna unit: IEC 529 1PX6
Display unit: IEC 529 1PX5 (USCG CFR-46)
Resistancy 1 to 12.5 Hz: 3.2 mmpp
12.5 to 2.5 Hz: 0.8 mmpp 25 to 50 Hz: 0.2 mmpp
A-2

World T ime Standards

A–3

Geodetic Chart List

001: WGS84 002: WGS72 003: TOKYO : 004: NORTH AMERICAN 1927 : Mean Value (CONUS) 005: EUROPEAN 1950 : Mean Value 006: AUSTRALIAN GEODETIC 1984 : Australia & Tasmania 007: ADINDAN : 008: : Ethiopia 009: : Mali 010: : Senegal 011 : Sudan 012: AFG : Somalia 013: AIN EL ABD 1970 : Bahrain Is. 014: ANNA 1 ASTRO 1965 : Cocos Is. 015: ARC 1950 : Mean Value 016: : Botswana 017: : Lesotho 018: : Malawi 019: : Swaziland 020: : Zaire 021: : Zambia 022: : Zimbabwe 023: ARC 1960 : 024: : Kenya 025: : Tanzania 026: ASCENSION IS. 1958 : Ascension Is. 027: ASTRO BEACON “E” : Iwo Jima Is. 028: ASTRO B4 SOR. ATOLL : Tern Is. 029: ASTRO POS 71/4 : St. Helena Is. 030: ASTRONOMIC STATION 1952 : Marcus Is. 031: AUSTRALIAN GEODETIC 1966 : Australia & Tasmania 032: BELLEVUE (IGN) : Efate & Erromango Islands 033: BERMUDA 1957 : Bermuda Islands 034: BOGOTA OBSERVATORY : Columbia 035: GAUPO INCHAUSPE : Argentina 036: CANTON IS. 1966 : Phoenix Islands 037: CAPE : South Africa 038: CAPE CANAVERAL : 039: CARTHAGE : Tunisia 040: CHATHAM 1971 : Chatham Is. (New Zealand) 041: CHUA ASTRO : Paraguay 042: CORREGO ALEGRE : Brazil 043: DJAKARTA (BATAVIA) : Sumatra Is. (Indonesia) 044: DOS 1968 : Gizo Is. (New Georgia Is.) 045: EASTER IS. 1967 : Easter Is. 046: EUROPEAN 1950 (Cont’d) : Western Europe 047: : Cyprus 048: : Egypt 049: : 050: : 051: : Greece 052 : Iran 053: : Italy, Sardinia 054: : Italy, Sicily 055: : Norway & Finland 056: : Portugal & Spain 057: EUROPEAN 1979 : Mean Value 058: GANDAJIKA BASE : Republic of Maldives 059: GEODETIC DATUM 1949 : New Zealand 060: GUAM 1963 : Guam Is. 061: GUX 1 ASTRO : Guadalcanal Is. 062: HJORSEY 1955 : Iceland 063: HONG KONG 1363 : Hong Kong 064: INDIAN : Thailand & Vietnam 065: : Bangladesh, India & Nepal 066: IRELAND 1965 : Ireland 067: ISTS 073 ASTRO 1969 : Diego Garcia 068: JOHNSTON IS. 1961 : Johnston Is. 069: KANDAWALA : Sri Lanka 070: KERGUELEN IS. : Kerguelen Is. 071: KERTAU 1948 : West Malaysia & Singapore 072: LA REUNION : Mascarene Is. 073: L. C. 5 ASTRO : Cayman Brac Is. 074: LIBERIA 1964 : Liberia 075: LUZON : Philippines (excl. Mindanao Is.) 076: : Mindanao Is. 077: MAHE 1971 : Mahe Is. 078: MARCO ASTRO : Salvage Islands 079: MASSAWA : Eritrea (Ethiopia) 080: MERCHICH : Morocco 081: MIDWAY ASTRO 1961 : Midway Is. 082: MINNA : Nigeria 083: NAHRWAN : Masirah Is. (0man) 084: : United Arab Emirates 085: : Saudi Arabia 086: NAMIBIA : Namibia 087: MAPARIMA, BWI : Trinidad & Tobago 088: NORTH AMERICAN 1927 : Western United States 089: : Eastern United States 090: : Alaska 091: : 092: : Bahamas, San Salvador Is. 093: : 094: : Alberta & British Columbia
Mean Value (Japan, Korea & Okinawa)
Mean Value (Ethiopia & Sudan)
Mean Value (Kenya & Tanzania)
Mean Value (Florida & Bahama Islands)
England, Scotland, Channel & Shetland Islands England, Ireland, Scotland, & Shetland Islands
Bahamas (excl. San Salvador Is.) Canada (incl. Newfoundland Is.)
095: : East Canada 096: : Manitoba & Ontario 097: : 098: : Yukon 099: : Canal Zone 100: : Caribbean 101: : Central America 102: : Cuba 103: : Greenland 104: : Mexico 105: NORTH AMERICAN 1983 : Alaska 106: : Canada 107: : CONUS 108: : Mexico, Central America 109: OBSERVATORIO 1966 : 110: OLD EGYPTIAN 1930 : Egypt 111: OLD HAWAIIAN : Mean Value 112: : Hawaii 113: : Kauai 114: : Maui 115: : Oahu 116: OMAN : Oman 117: ORDNANCE SURVEY OF GREAT BRITAIN 1936: Mean Value 118: : England 119: : England, Isle of Man & Wales 120: : Scotland, & Shetland Islands 121: : Wales 122: PICO DE LAS NIVIES : Canary Islands 123: PITCAIRN ASTRO 1967 : Pitcairn Is. 124: PROVISIONS SOUTH CHILEAN 1963: South Chile (near 53˚ S) 125: PROVISIONAL SOUTH AMERICAN 1956: Mean Value 126: : Bolivia 127: : 128: : 129: : Columbia 130: : Ecuador 131: : Guyana 132: : Peru 133: : Venezuela 134: PUERTO RICO : Puerto Rico & Virgin Islands 135: QATAR NATIONAL : Qatar 136: QORNOQ : South Greenland 137: ROME 1940 : Sardinia Islands 138: SANTA BRAZ : 139: SANTO (DOS) : Espirito Santo Is. 140: SAPPER HILL 1943 : East Falkland Is. 141: SOUTH AMERICAN 1969 : Mean Value 142: : Argentina 143: : Bolivia 144: : Brazil 145: : Chile 146: : Columbia 147: : Ecuador 148: : Guyana 149: : Paraguay 150: : Peru 151: : Trinidad & Tobago 152: : Venezuela 153: SOUTH ASIA : Singapore 154: SOUTHEAST BASE : Porto Santo & Madeira Islands 155: SOUTHWEST BASE : 156: TIMBALAI 1948 : 157: TOKYO : Japan 158: : Korea 159: : Okinawa 160: TRISTAN ASTRO 1968 : Tristan da Cunha 161: VITI LEVU 1916 : Viti Levu Is. (Fiji Islands) 162: WAKE-ENIWETOK 1960 : Marshall Islands 163: ZANDERIJ : Surinam 164: BUKIT RIMPAH : 165: CAMP AREA ASTRO : 166: G. SEGARA : Kalimantan Is. (Indonesia) 167: HERAT NORTH : Afghanistan 168: HU-TZU-SHAN : Taiwan 169: TANANARIVE OBSERVATORY 1925:Madagascar 170: YACARE : Uruguay 171: RT-90 : Sweden 172: Pulkovo 1942 : Russia 173: Finish KKJ : Finland
Northwest Territories & Saskatchewan
Corvo & Flores Islands (Azores)
Chile-Northern Chile (near 19˚S) Chile-Southern Chile (near 43˚S)
Sao Maguel, Santa Maria Islands (Azores)
Faial, Graciosa, Pico, Sao Jorge, & Terceira Is. Brunei & East Malaysia (Sarawak & Sadah)
Bangka & Belitung Islands (Indonesia) Camp Mcmurdo Area, Antarctica
A-4

Loran C Chains

Chain GRI S1 S2 S3 S4 S5
Central Pacific 4990 11 29 -- -- -­Canadian East Coast 5930 11 25 38 -- --
Command Lion (Korea) 5970 11 31 42 -- -­Canadian West Coast 5990 11 27 41 -- --
South Saudi Arabia 7170 11 26 39 52 -­Labrador Sea 7930 11 26 -- -- --
Eastern Russia 7950 11 30 46 61 -­Gulf of Alaska 7960 11 26 44 -- -­Norwegian Sea 7970 11 26 46 60 --
Southeast USA 7980 11 23 43 59 -­Mediterranean Sea 7990 11 29 47 -- --
Western Russia 8000 11 25 50 65 -­North Central USA 8290 11 27 42 -- --
North Saudi Arabia 8990 11 25 40 56 69 Great Lakes 8970 11 28 44 59 --
South Central USA 9610 11 25 40 52 65 West Coast USA 9940 11 27 40 -- -­Northeast USA 9960 11 25 39 54 --
Northeast Pacific (old) 9970 11 30 55 81 -­Icelandic 9980 11 30 -- -- --
North Pacific 9990 11 29 43 -- -­Suez 4991 10 24
England, France 8940 12 30 Northwest Pacific 8930 11 30 50 70 Newfoundland East Coast 7270 11 25 Lessay 6731 10 39 BØ 7001 11 27 Sylt 7499 11 26 Ejde 9007 10 23 38 Saudia Arabia North 8830 11 25 39 56 Saudia Arabia South 7030 11 25 37 55
A–5

Decca Chains

Chain No.
Chain Chain
code
01 South Baltic 0A Europe 34 Kanto 8C Japan 02 Vestlandet 0E " 35 Shikoku 4C "
03 Southwest British 1B " 36 Hokuriku 2C " 04 Northumbrian 2A " 37 Kita Kyushu 7C "
05 Holland 2E " 38 Namaqualand 4A Southern Africa 06 North British 3B " 39 Cape 6A "
07 Lofoten 3E " 40 Eastern Province 8A " 08 3F " 41 South West Africa 9C "
09 North Baltic 4B " 42 Natal 10C " 10 North West 4C " 43 Dampier 8E Australia
11 Trondelag 4E " 44 Port Headland 4A " 12 English 5B " 45 Anticosti 9C Northern Africa
13 North Bothnian 5F " 46 East Newfoundland 2C " 14 Southern Spanish 6A " 47 Cabot Strait 6B "
15 North Scottish 6C " 48 Nova Scotia 7C " 16 Gulf of Finland 6E "
Location Chain
no.
Chain Chain
code
Location
17 Danish 7B " 18 Irish 7D "
19 Finnmark 7E " 20 French 8B "
21 South Bothnian 8C " 22 Hebridean 8E "
23 Frisian Islands 9B " 24 Helgeland 9E "
25 Skagerrak 10B " 26 North Persian Gulf 5C Persian Gulf & India
27 South Persian Gulf 1C " 28 Bombay 7B "
29 Calcutta 8B " 30 Bangladesh 6C "
31 Saliyah 2F " 32 Hokkaido 9C Japan
33 Tohoku 6C "
A–6

DGPS Reference Station List

Country Location ID No. Freq. (kHz) Lat/Long
Belgium OOSTENDEPHARE 312.0 51°14'N/02°55'E 100 Denmark HAMMERODDE 0451 289.0 55°18'N/14°46'E 100
SKAGEN 0452 298.0 57°44'N/10°35'E 100 BLAAVANDS HUK 0453 296.5 55°34'N/08°05'E 100
Great Britain ST. CATHERINE'S POINT 0020 293.5 50°34'N/01°17'W 100
LIZARD 0001 284.0 49°57'N/05°12'W 100 POINT LYNAS 304.5 53°24'N/04°17'W 100 RHINNS OF ISLAY 293.5 55°40'N/06°31'W 100 BUTT OF LEWIS 289.5 58°31'N/06°16'W 100 SUMBURGH HEAD 304.5 59°51'N/01°16'W 100 GIRDLE NESS 311.5 57°08'N/02°03'W 100 FLAMBOROUGH HEAD 0039 302.5 54°06'N/00°04'W 100 NORTH FORELAND 0054 310.5 51°22'N/01°26'W 100
Finland PORKKALA 0400 285.0 59°58'N/24°24'E 100
MANTYLUOTO 0401 298.0 61°36'N/21°28'W 100 OUTOKUMPU 293.5 62°52'N/27°40'E 100 PUUMALA 301.5 61°33'N/27°30'E 100
France GATTEVILLE 297.5 49°42'N/01°16'W 100
ECKMUHL 312.5 47°48'N/04°23'W 100 LES BALEINES 299.5 46°15'N/01°34'W 100 CAP FERRET 287.0 44°39'N/01°15'W 100 CAP BEAR 313.0 42°31'N/03°08'E 100 REVELLATA 294.5 42°35'N/08°44'E 100
Germany WUSTROW 0491 314.5 54°20'N/12°23'E 200
HELGOLAND 0492 313.0 54°11'N/07°53'E 200
Netherlands AMELAND 299.5 53°27'N/05°38'E 100
HOEK VAN HOLLAND 287.5 51°59'N/04°07'E 100
Iceland REYKJANES 0001 292.5 63°49'N/22°42'W 100
BJARGTANGAR 0002 289.0 65°30'N/24°32'W 100 SKAGATA 0003 304.5 66°07'N/20°06'W 100
Baud
rate
Country Location ID No. Freq. (kHz) Lat/Long
Iceland RAUFARHOFN 0004 301.5 66°27'N/15°57'W 100
DJUPIVOGUR 0005 295.5 64°39'N/15°17'W 100 SKARDSFJARA 0006 313.0 63°31'N/17°59'W 100
Ireland MIZEN HEAD 300.5 51°27'N/09°49'E 100
TORY ISLAND 313.5 55°16'N/08°15'E 100 Latvia VENTSPILS 308.5 57°22'N/21°31'E 100 Norway FAERDER 0101 288.0 59°01'N/10°31'E 100
UTSIRA 0201 307.0 59°18'N/04°52'E 100
UTVAER 0203 300.0 61°02'N/04°30'E 100
SVINOEY 0204 293.5 62°19'N/05°16'E 100
HALTEN 0206 313.5 64°10'N/09°24'E 100
SKOMVAER 0302 300.0 67°24'N/11°52'E 100
TORUNGEN 0102 292.5 58°23'N/08°48'E 100
LISTA 0104 301.0 58°06'N/06°34'E 100
SKLINNA 0207 288.5 65°12'N/10°59'E 100
TORSVAAG 0305 291.5 70°14'N/19°30'E 100
HELNES 0307 288.5 71°03'N/26°13'E 100
VARDOE 0309 307.0 70°23'N/31°09'E 100
BELLSUND 0401 292.5 77°43'N/13°57'E 100 Russia BALTIYSK 298.5 54°41'N/19°59'E 100 Spain CABO FINISTERRE 298.0 42°53'N/09°16'W 100
CABO GATA 298.5 36°43'N/02°11'W 100
PUNTA DE CALA FIGUERA 286.0 39°27'N/02°31'E 100 Sweden BJUROKLUBB 0461 303.5 64°29'N/21°35'E 100
SKAGS UDDE 0462 306.5 63°11'N/19°01'E 100
OSKAR 0463 291.5 60°32'N/18°23'E
ALMAGRUNDET 0464 287.0 59°09'N/19°10'E 100
HOBURG 0465 302.0 56°55'N/18°09'E 100
KULLEN 0466 293.5 56°18'N/12°27'E 100
HJORTONS UDDE 0467 297.0 58°38'N/12°40'E 200 United States
of America
WHITEFISH PT, MI 318.0 46°46'N/84°57'W 100
DULUTH, MN 296.0 46°47'N/92°05'W 100
Baud
rate
A–7
Country Location ID No.
(
)
(
)
United States of America
UPPER KEWEENAW, MI 298.0 47°14'N/88°38'W 100 NEEBISH IS, MI 309.0 46°19'N/84°09'W 200 SEUL CHOIX PT, MI 322.0 45°55'N/85°55'W 200 PRESQUE ILE, MI 293.0 45°21'N/83°30'W 100 SAGINAW, MI 301.0 44°15'N/83°27'W 100 MILWAUKEE, WI 298.0 43°02'N/87°53'W 100 DETROIT, MI 319.0 42°18'N/83°06'W 200 BUFFALO, NY 322.0 42°52'N/78°54'W 100 PORTSMOUTH, NH 0003 288.0 43°04'N/70°43'W 100 MONTAUK PT, NY 0002 293.0 41°04'N/71°52'W 100 WILDWOOD, NJ 1008 301.0 38°57'N/74°52'W 100 WILDWOOD, NJ 1007 301.0 38°57'N/74°52'W 100 CAPE HENLOPEN, DE 0001 298.0 38°47'N/75°05'W 100 ALEXANDRIA, VA 305.0 38°45'N/77°07'W 100 CAPE HENRY, VA 0004 289.0 36°56'N/76°00'W 100 BASS HARBOR, ME 316.0 44°13'N/68°20'W 100 CHATHAM, MA 304.0 41°40'N/69°57'W 200 SANDY HOOK, NJ 0008 286.0 40°28'N/74°00'W 200 FORT MACON, NC 294.0 34°42'N/76°41'W 100 CHARLESTON, SC 298.0 32°45'N/79°51'W 100 CAPE CANAVERAL, FL 289.0 28°28'N/80°33'W 100 EGMONT KEY, FL 312.0 27°36'N/82°46'W 100 MIAMI, FL 322.0 25°44'N/80°10'W 100 KEY WEST, FL 286.0 24°xx'N/82°xx'W 100 SAN JUAN, PR 295.0 18°xx'N/66°xx'W 100 ENGLISH TURN, LA 293.0 29°53'N/89°56'W 200 GALVESTON, TX 296.0 29°20'N/94°44'W 100 ARKANSAS PASS, TX 304.0 27°50'N/97°04'W 100
Freq.
kHz
Lat/Long
Baud
rate
ID
Country Location
United States of America
Canada POINT PATRIE 303.0 43°50'N/77°07'W 100
PIGEON PT, CA 287.0 PT BLUNT, CA 310.0 PT ARGUELLO, CA 321.0 PT LOMA, CA 302.0 CAPE HINCHENBROOK, AK POTATO PT, AK 298.0 NIKISHKA, AK 310.0 CAPE CHINIAK, AK 313.0 COLD BAY, AK 289.0 YAKUTAR, AK HAINES, AK GUSTAVUS, AK BIORKA IS, AK LEVEL IS, AK ANNETTE IS, AK BARBERS POINT 325.0 UPOLO PT, HI 285.0 KOKOLE PT, HI VICKSBURG, MS 0800 313.0 200 MEMPHIS, TN 310.0 200 ST LOUIS, MO 322.0 200
PORT WELLER 302.0 43°14'N/79°13'W 100 SOMBRA 306.0 42°42'N/82°29'W 100 TROIS RIVIERES 321.0 46°24'N/72°27'W 100 LAUZON 314.0 46°48'N/71°09'W 100 ST JEAN SUR RICHELIEU 308.0 45°20'N/73°20'W 100 PARTRIDGE ISLAND 311.0 45°14'N/66°03'W 100
No.
Freq.
kHz
292.0
Lat/Long
37°11'N/122°24'W 37°51'N/122°25'W 34°35'N/120°39'W 32°40'N/117°15'W 60°14'N/146°39'W 61°04'N/146°42'W 60°44'N/151°22'W 57°37'N/152°10'W 55°18'N/162°47'W 59°33'N/139°44'W 59°13'N/135°26'W 58°26'N/135°42'W 56°51'N/135°32'W 56°28'N/133°06'W 55°04'N/131°37'W 21°18'N/158°07'W 21°15'N/155°53'W 21°59'N/159°46'W
Baud
Rate
100 200 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
MOBILE PT, AL 300.0 30°14'N/88°01'W 100 WHIDBEY IS, WA 0276 302.0 ROBINSON PT, WA 0274 323.0 C. MENDOCINO, CA 292.0
48°19'N/122°42'W 47°23'N/122°22'W 40°26'N124°24'W
100 200 100
A–8
Country Location ID No.
(
)
Canada WESTERN HEAD 296.0 43°59'N/64°39'W 100
CAPE RACE 288.0 46°39'N/53°04'W 100 PORT AUX BASQUES 47°34'N/59°09'W 100 CAPE SPEAR 314.5 47°31'N/52°37'W 100 TRIPLE ISLAND, B.C. 0909 308.0 POINT ATKINSON, B.C. 0902 320.0
RACE ROCKS, B.C. 309.0 Bermuda ST. DAVID'S HEAD 323.0 32°22'N/64°39'W 100 Brazil PONTA DE SAO MARCOS 300.5 02°29'N/44°18'W 100
Freq.
kHz
Lat/Long
54°17'N/130°53'W 49°20'N/123°15'W 48°18'N/123°31'W
Baud
Rate
100 100 100
A–9

Glossary

Almanac
Each GPS satellite broadcasts its own orbital data as well as general orbital data of all other GPS satellites. This general orbital data is called the Almanac. The GPS receiver receives the Almanac and decodes it to calculate the quantity and elevation angle of satellites in view , to know when it can receive the GPS signal. If there is no Almanac in the receiver it cannot fix its position. The receiver is shipped with no Almanac, thus when it is turned on for the first time it starts receiving the Almanac. Each time the unit is turned on the previous Almanac is erased and the latest received.
Differential GPS (DGPS)
The differential GPS system, consisting of DGPS land stations and DPGS beacon receiver-equipped marine vessels, further refines the accuracy of the GPS measured position. A DGPS land station knows its exact position. If there is a difference between GPS position and DGPS land station's position this is called GPS error. The DPGS station transmits GPS error data to a beacon receiver which relays the data to the GPS receiver . The GPS receiver uses this data to refine the accuracy of the GPS position (within about 10 meters under ideal conditions). DGPS stations are strategically located throughout America (including Hawaii and Alaska), Europe, Canada, Bermuda and Brazil.
Beacon receiver
The DGPS (Differential GPS) station transmits a beacon signal which contains information about GPS error. The device which receives the beacon signal is called a beacon receiver.
Cold start
When the GPS receiver is turned on for the very first time, it starts receiving the Almanac. This condition is called cold start. In this condition it takes about two minutes to find position. Once the Almanac is stored in the GPS navigator, it takes only about 20 seconds to find position. (The normal start-up condition is called warm start.)
Destination
A destination can be either a single destination waypoint or a series of waypoints leading to the ultimate destination. When you set a destination, the GPS receiver provides range and bearing data to the destination, to help you steer to the destination along the shortest past possible.
Estimated time of arrival (ETA)
The time at which you arrive at the ultimate destination.
Geodetic chart
A nautical chart is usually made by either trigonometrical survey or astronomical survey and according to the geodetic chart standards of the country where it is used. The GPS standard chart system is WGS-84. Thus if you are using a chart different from WGS-84, there will be error between GPS position and nautical chart position. To get correct position, the GPS receiver must know what chart system you are using, to apply an offset to GPS position.
GPS measured position
GPS measured latitude and longitude position.
Intermediate waypoint
A waypoint in a route.
A–10
Magnetic bearing
Route
Bearing relative to magnetic north, with the compass bearing corrected for deviation.
Magnetic variation offset
The location of the magnetic north pole is different from the geographical north pole. This causes a difference between the true and magnetic north direction. This difference is called magnetic variation, and varies with respect to the observation point on the earth. This variation may be entered automatically or manually.
Navigation calculation
The GPS receiver calculates the range, bearing and cross track error to next waypoint when you select a destination. The calculation of that data is called navigation calculation. The calculation itself is done using one of two methods (selectable): Great circle (straight line between two points) or Rhumb line (straight line between two points on nautical chart).
NMEA 0183
The National Marine Electronics Association's signal format which enables connection of electronic equipment of different marine electronics manufacturers.
Plotting interval
A series of waypoints leading to the ultimate destination.
Route navigation
Following a stored route.
S/A
GPS was developed by the US Department of Defense mainly for use by its marine vessels and aircraft. For civil users the accuracy of the system is purposely downgraded for national security reasons. This intentional accuracy reduction is called S/A. Because GPS position error may be greater than 100 meters any GPS position should be double checked against other sources to confirm position.
Skip
This means to bypass a waypoint in a route.
Storage capacity
Storage capacity defines how many points of track and marks a memory can hold. The GP­80's storage capacity is 2,000 points.
Time-to-go (TTG)
The amount of time necessary to get to a destination, maintaining current speed and course.
The plotting interval determines both how the track will be reconstructed on the display and track storage time. The shorter the interval the more accurate the reconstruction of track line, however total storage time is reduced. The plotting interval can be selected to time or distance. Plotting by distance offers the advantage that the track is not stored when the vessel is anchored.
Time differences
Time differences (or TDs) are the position information generated by the Loran C and Decca position-fixing systems. TDs are the time in microseconds between the transmission of pulsed signals in the Loran C and Decca systems.
Total distance
Total distance is the number of miles from starting point to end point in a route.
A–11
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INTERFACE UNIT IF-2500

Specifications
Input port 2 ports for NMEA 0183 data Output port 6 ports for either of NMEA 0183 or RS-422 data
3 ports for alarm signal Power supply 10 to 35 VDC Power consumption 2.2 W maximum Color 2.5G5/1.5 Newtone no. 5 Ambient temperature -15°C to +55°C Humidity Relative humidity 95% at +40°C Waterproofing None
Installation
Mounting considersations
The installation site is important for proper operation and continued performance. Select it keeping the following points in mind.
The unit is not waterproof; locate it away
from water spray.
• Select a clean and cool place.
• Select a place where shock,vibration and
electrical noise are minimal.
• Leave sufficient space at the sides and rear
of the unit for maintenance and service.
Mounting
The unit can be mounted on a bulkhead, over­head or tabletop.
Secure the unit to mounting location with woodscrews. For added support, use nuts, bolts and washers instead of woodscrews.
• All dimensions in millimeters.
• For added support, use nuts, bolts and washers instead of woodscrews.
• Leave sufficient space at the sides and rear of the unit for maintenance and servicing.
Figure B-1 Interface unit
mounting dimensions
B–1
Cable fabrication
1) Remove the outer sheath, armor, and shield as illustrated.
2) Remove the insulation of cores 3 mm.
3) Cut and solder unused cores to the shield.
4) Solder a ground wire to the shield.
5) Dress the shield and the outer sheath with heat shrink tube, leaving 30 mm of shield and outer sheath exposed.
6) Heat the heat shrink tube.
7) Remove the insulation of NH connector (supplied) 3 mm.
8) Heat the heat shrink tube.
B–2
Figure B-2 How to fabricate the signal cable
Grounding
To prevent electrical shock and mutual interference, run a ground wire between the earth terminal on the unit and ship’s superstructure.
Cabling schedules
The signal cable should be a twisted-pair, double-screened cable. Ground the signal cable at the cable clamp.
Connections
Power supply
J1 (10 to 35 VDC)
Pin no. Designation
#1 + #2
Input signal (NMEA)
The signal from DGPS is connected to J2 and J3. Data being fed to J2 has higher priority than J3.
J2 J3
Pin no. Designation Pin no. Designation
#3 NMEA RD1-H #3 NMEA RD2-H #4 NMEA RD1-C #4 NMEA RD2-C
#6 GND #6 GND
Output signal (RS-422 or NMEA)
J4, J5, J6, J7, J8, J9
Pin no. Designation
#1 TD-H #2 TD-C
#4 GND
B–3
Output signal (contact closure signal)
J10 (WPT alarm) J11 J12
Pin no. Designation Pin no. Designation Pin no. Designation
#1 Alarm signal #1 Alarm signal #1 Alarm signal #2 Alarm signal #2 Alarm signal #2 Alarm signal
#3 GND #3 GND #3 GND
Selection of output data format
The output data format is selectable by changing a jumper block; A for RS-422 and B for NMEA. For example, to select NMEA for J4, change the jumper block from A to B on J401 and J402. Do the same on J5 thru J9.
J10 (WPT alarm) J11 J12
Output Jumper Output Jumper Output. Jumper
J4 J401/J402 (A) J5 J501/J502 (A) J6 J601/J602 (A) J7 J701/J702 (A) J8 J801/J802 (A) J9 J901/J902 (B)
Default of jumper setting is shown in parenthesis.
Maintenance
Fuse replacement
If the fuse blows, find the cause of the problem before replacing it. Do not use a fuse rated more than 0.5A, since it may cause more serious damage to the equipment.
Self test 1
The unit performs an internal self-check in the following sequence each time power is turned on.
1) LEDs CR7 to CR10 blink twice every 2 seconds.
2) ROM and RAM are tested.
3) LED CR13 blinks every second for normal operation. If an error is detected during the test, the corresponding LED is turned on.
• When CR7 is on, ROM is defective.
• When CR8 is on, RAM is defective.
B–4
Self test 2
The test requires an external loop to check I/O. Follow the steps below to carry out the test.
1) Set the DIP switch #4 of S1 to the ON position.
2) Temporarily disconnect input and output connectors J2 and J4.
3) Solder a jumper block between J2 and J4; #3 and #4 of J2 are connected to #1 and #2 of J4, respectively.
Jumper block consists of XH-6 pin and 4 pin connectors with two short wires as below.
XH, 6 pin XH, 4 pin
#3 - - - #1 #4 - - - #2
4) Change the jumper block between J2 and J5; J2/J6, J2/J7, J2/J8, J2/J9, J3/J4, J3/J5, J3/ J6, J2/J7, J2/J8, J2/J9.
LED status
The LEDs light according to equipment status as follows: CR2: Lights when receiving NMEA data from J2.
CR3: Lights when sending NMEA data from J3. CR4: Lights when sending NMEA data from J4 to J9. CR6: Blinks every second. CR7: Lights when ROM error is detected, or no signal at J2 for 300 ms. CR8: Lights when RAM error is detected, or no signal at J3 for 300 ms. CR9: Lights when SIO error is detected, or NMEA data is input at J2. CR10: Lights when NMEA data is input at J2.
From left #2, #3, #4, #6 thru #10
Figure B-3 Location of LEDs
B–5
INSTALLATION of DD-80
1. GENERAL_________________________ C-1
2. DISPLAY UNIT _____________________ C-2
3. ANTENN UNIT _____________________ C-3
4. WIRING ___________________________ C-5
5. INITIAL SETTINGS __________________ C-6
OUTLINE DRAWING __________________________ D-1
APPENDIX C
Page

1. GENERAL

The figure below shows the system configuration of the DD-80.
GPS ANTENNA GPA-017S GPA-018S GPA-019S
GPS ANTENNA GPA-017S GPA-018S GPA-019S
INTERFACE UNIT
IF-2500
1) #: MJ-A2SPF004-030 *3m*
2) Cable type is CO-SPEVV-SB-C 2P or equivalent, unless noted otherwise.
3) *1: Interface Unit IF-1422 is required if cable length is more than 30 m.
C-1
Mounting

3. ANTENNA UNIT

Install the antenna unit referring to the ins tallation diagram on p age D-4. When select ing a mounting locat ion for the antenna unit, keep in mi nd the following points.
Select a location out of the radar beam. The radar beam will obstruct or prevent reception of the GPS satellite signal.
Be sure the location offers a clean line-of-sight to satellite. Objects within line-of-sight to a satellite, for example, a mast or funnel, block recepti o n and caus e prolonged acqui r i ng ti m e or inter r u pti o n o f posi tion fix.
Mount the unit as high as possible. Mounting the antenna as high as possible ke eps it free of wat er spra y, which can inte r cept reception of GPS satellite sign al, if water spray is frozen.
The antenna unit GPA-018S must be grounded. Connect gr ou nd wi r e o f
1.25 sq or larger (local supply) between unit and a stainless steel screw fastened to the mast.
Extending Antenna Cable Length
The standar d c able is 15m long. 30m and 50m long extension cable sets are optional ly availabl e. !Extension cable line-up Fabricat e the end of antenna cable and attach the coaxial connector . Details ar e s hown on next page.
Antenna Unit
GPA-019S
GPA-018S GPA-017S
20cm
Conversion Cable Assy.
Antenna Cable
1 m
30 m or 50 m 1 m
Extension Cable Line-up
!Waterproofing the connector Wrap connector with vulcanizing tape and then vinyl tape. Bind t he tape end with c able-tie.
: Connector
To display unit
Fabricate locally. (See the next page.)
How to waterproof the antenna
C-3

4. WIRING

The figure below shows the connec tion of cables on r ear of display unit.
CAUTION
Ground the receiver to prevent loss of sensitivity and mutual interference.
Antenna Unit
GPA-019S
20cm
GPA-018S GPA-017S
External Equipment
Rear of Display Unit
DATA1
GPS ANT
DATA2
DATA3
DATA4
Black Red
Ground
POWER
+
10.2~31.2VDC
Grounding
FUSE 2A
Connecti on of cables on display unit
The dis play unit contains s everal CPUs. While they are operating, they radiate noi s e, which can int er fere with other radi o equipment. Ground the unit as follows to prevent it .
The grounding wire should be 1.25sq or larger.
The grounding wire should be as short as pos sible.
C-5
GNS: GNSS fix data RMB: Recommended minimum navigation information. Cross-track error,
direction to steer, origin and destination waypoint latitude and longitude, range and bearing of destination waypoint, destination closing velocity, arrival alarm.
RMC: Recommended minimum specific GPS/TRANSIT data. UTC of
position fix, latitude and longitude, ground speed and course, data,
magnetic variation RTE: Routes VTG: Course over ground and ground speed WCV: Waypoint closure velocity WNC: Distance-waypoint to waypoint-great circle WPL: Waypoint location XTE: Cross-track error, measured ZDA: Time and data ZTG: UTC and time to destination waypoint
Also, the following NMEA 0183 Ver. 1.5 sentences are output
APA: Autopilot sentence “A”. Magnitude of cross-track error, direction to
steer, arrival alarm, bearing origin to destination. WNR: Distance-waypoint to waypoint-rhumb line
Input data sentence of NMEA 0183 Ver. 1.5/2.0 Checksum is checked if attached, and if any error is found, the sentence becomes invalid. Talker ID is not distinguished. DBT: Depth below transducer
$--DBT, 1234.5 f, 1234.5, M, 1234.5
F*12<CR><LF>
a b c d e f g
a, b: Water depth, feet
c, d: Water depth, m
e, f: Water depth, fathoms
g: Checksum DPT: Depth
$--DPT, 1234.5 1234.5, 1234.5*23<CR><LF>,
a b c
a: Water depth relative to the transducer, meters
b: Offset from transducer, meters… not used
c: Checksum MTW: Water temperature
$--MTW, 23.4, C*34<CR><LF>
a b c
a: Temperature: degrees, C
c: Checksum
C-7
TLL: Target latitude and longitude
$--TLL, 00, 3445.678, N, 13521.234, E, abcd, 121530, T a b c d d f g h R*A5<CR><LF> a: Target number… not used b, c: Latitude d, e: Longitude f: Target name… not used g: UTC… not used h: Target status… not used i: Reference target… not used j: Checksum
FURUNO proprietary sentences
AGFPA: Autopilot information from FURUNO autopilot
Port Input Output DATA1, DATA2 NMEA 0183
Ver. 1.5/2.0
AGFPA, DBT, DPT, MTW, TTL
IEC 61162-1/nMEA 0183 Ver.
1.5/2.0
AAM, APA, APB, BOD, BWC, BWR, BWW, GGA, GLL, GNS, RMB, RMC, VTG, WCV< WNC, WNR, WPL, XTE, ZDA, ZTG, Rnn, RTE, DTM LOG PULSE DATA3 External MOB Same as for DATA1.
General data DATA4 DGPS or general data (selected through menu)
IEC 61162-1/nMEA 0183 Ver.
1.5/2.0
AAM, APA, APB, BOD, BWC,
BWR, BWW, GGA, GLL, GNS,
RMB, RMC, VTG, WCV< WNC,
WNR, WPL, XTE, ZDA, ZTG,
Rnn, RTE, DTM
General data
1) Input of lighthouse/buoy information: Floppy disk stored
lighthouse/buoy information is supplied from PC connected to DATA4 port.
2) Input of waypoint data: Connect YEOMAN to DATA4 port
3) Input and output of waypoint/route data
C-8
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