Furuno BACK GP-80 User Manual

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9-52 Ashihara-cho,9-52 Ashihara-cho,

*00080733901**00080733901*

*OME43740U00**OME43740U00*

Nishinomiya, JapanNishinomiya, Japan

Telephone :Telephone : 0798-65-21110798-65-2111 Telefax :Telefax : 0798-65-42000798-65-4200

Your Local Agent/DealerYour Local Agent/Dealer

ll rights reserved.

PUB.No.PUB.No. OME-43740OME-43740

(( DAMIDAMI ))

GP-80GP-80

Printed in JapanPrinted in Japan

FIRST EDITION :FIRST EDITION : SEP.SEP. 19951995

U :U : JUN.JUN. 03,200203,2002

* 0 0 0 8 0 7 3 3 9 0 1 ** 0 0 0 8 0 7 3 3 9 0 1 *

*OME43740U00**OME43740U00*

* O M E 4 3 7 4 0 U 0 0 ** O M E 4 3 7 4 0 U 0 0 *

SAFETY INSTRUCTIONS

"DANGER", "WARNING " 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

SAFETY INFORMATION

FOR THE OPERAT OR

WARNING

Do not open the cover of the equipment.

This equipment uses high voltage electricity which can shock, burn or cause death. Only qualified personnel should work inside the equipment.

Do not dissasemble or modify the equipment.

Fire, electrical shock or serious injury can result.

Immediately turn off the power at the ship's mains switchboard if water or foreign object falls into the equipment or the equipment is emitting smoke or fire.

Continued use of the equipment can cause fire, electrical shock or serious injury.

CAUTION

Do not place liquid-filled containers on the top of the equipment.

Fire or electrical shock can result if a liquid spills into the equipmtnt.

Do not place heater neat the equipment.

Heat can melt the power cord, which can result in fire or electrical shock.

Do not operate the unit with wet hands.

Electrical shock can result.

Use the correct fuse.

Use of the wrong fuse can cause fire or equipment damage.

No single navigation aid (including this unit) should ever be relied upon as the exclusive means for navigating your vessel.

W ARNING Label attached

WARNING

To avoid electrical shock, do not remove cover. No user-serviceable parts inside.

- -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Name : Warning Label (1) Type : 86-003-1011-0 Code No. : 100-236-230

The navigator is responsible for checking all aids available to confirm his position. Electronic aids are intended to assist, not replace, the navigator.

Use of an autopilot with this unit, to provide automatic steering to destination, does not eliminate the need to maintain a watch.

Always maintains a vigilant watch to prevent collision or grounding.

TABLE OF

4. NAVIGATION PLANNING

CONTENTS

FOREWORD............................iii

SYSTEM OVERVIEW ...............1

1. OPERATIONAL OVERVIEW

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 Selecting the Display Mode.............. 1-3

1.5 Chart Icons........................................1-6

4.1 Registering Waypoints ...................... 4-1

4.2 Editing Waypoints............................. 4-4

4.3 Deleting Waypoints........................... 4-5

4.4 Registering Routes............................ 4-5

4.5 Deleting Route Waypoints ................ 4-6

4.6 Replacing Route Waypoints.............. 4-7

4.7 Deleting Routes ................................ 4-7

5. STARTING FOR 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

6. SETTING UP VARIOUS DISPLAYS

2. TRACK5

2.1 Enlarging/Shrinking the Display ...... 2-1

2.2 Selecting Display Orientation........... 2-1

2.3 Shifting the Cursor............................2-1

2.4 Shifting the Display .......................... 2-2

2.5 Centering Cursor Position................. 2-3

2.6 Centering Own Ship's Position .........2-3

2.7 Stopping/Starting Plotting and

Recording of Track ........................... 2-3

2.8 Erasing Track.................................... 2-4

2.9 Selecting Track Plotting Interval ...... 2-4

2.10 Apportioning the Memory .............. 2-5

2.11 Selecting Bearing Reference........... 2-6

3. MARKS

3.1 Entering/Erasing Marks .................... 3-1

3.2 Selecting Mark Shape....................... 3-2

3.3 Connecting Marks (selecting mark

connection line) ................................ 3-2

3.4 Entering Event Marks....................... 3-3

3.5 Selecting Event Mark Shape............. 3-3

3.6 Entering the MOB Mark................... 3-4

6.1 Selecting Data to Display on the

Data Display ..................................... 6-1

6.2 Selecting Position Format................. 6-2

6.3 Demo Display ................................... 6-4

7. ALARMS

7.1 Arrival Alarm, Anchor Watch

Alarm ................................................ 7-1

7.2 Cross Track Error (XTE) Alarm ....... 7-2

7.3 Ship’s Speed Alarm .......................... 7-3

7.4 Trip Alarm......................................... 7-3

7.5 W ater Temperature Alarm................. 7-4

7.6 Depth Alarm ..................................... 7-4

7.7 DGPS Alarm ..................................... 7-4

8. MENU SETTINGS

8.1 GPS Menu......................................... 8-1

8.2 Selecting Units of Measurement....... 8-3

8.3 Mark, Character Size and

Brilliance .......................................... 8-4

8.4 Settings for Connection of

Navigator .......................................... 8-6

iii

8.5 Receiving Data from Personal

Computer .......................................... 8-8

8.6 DGPS Settings ................................ 8-10

8.7 Displaying GPS Monitor Displays . 8-12

9. MAINTENANCE & TROUBLESHOOTING

9.1 Clearing the Memory........................ 9-1

9.2 Preventative Maintenance................. 9-2

9.3 Error Messages ................................. 9-2

9.4 Troubleshooting................................ 9-4

9.5 Self Tests........................................... 9-5

10. INTRODUCTION TO GPS

10.1 What is GPS?................................ 10-1

10.2 How the GPS Receiver

Calculates Position........................ 10-1

10.3 Position-fixing Accuracy

(HDOP)......................................... 10-2

APPENDIX

Specifications......................................... A-1

Digital Interface ..................................... A-3

Time Differences ................................. A-17

Geodetic Chart List.............................. A-18

Loran C Chains.................................... A-19

Decca Chains ....................................... A-20

DGPS Reference Station List .............. A-21

Glossary ............................................... A-24

INDEX............................................. Index-1

Declaration of conformity to type

FOREWORD

A Word to GP-80 Owners

Congratulations on your choice of the FURUNO GP-80 GPS Navigator . W e are confident you will see why the FURUNO name has become synonymous with quality and reliability.

For over 40 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.

Your navigator 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.

• Man overboard feature records latitude and longitude coordinates at time of man overboard and provides continuous updates of range and bearing to that point

• DGPS capability—with built-in DGPS beacon kit, or accepts DGPS correction data from external DGPS beacon receiver

• Menu-driven operation

• Bright 122 x 92 mm LCD with temperature compensated tone and brilliance adjustment

• Power consumption is a low 10 W.

• Provision for connection of autopilot (option)—steering data output to autopilot

• Digital display of water temperature and depth with connection of video sounder (with NMEA input)

• Memory stores 2,000 points of track and marks

• "Highway" display provides perspective view

• Position may be shown in latitude and longitude or LOP (Loran or Decca)

• Four connectors for optional equipment two IEC 61162-1/NMEA 0183 I/O, one IEC 61162-1/NMEA 0183 (or log) output and one DGPS for personal computer) I/O

Program No.

2051011-017 (Apr. 2002)

Features

The GP-80 GPS Navigator is a totally integrated GPS receiver and video plotter consisting of a display unit and an antenna unit. The high sensitivity receiver tracks up to eight satellites simultaneously. An 8-state Kalman filter ensure optimum accuracy in determination of vessel position, course and speed.

In most cases the operator need do no more than turn on the power to find position.

The main features of the GP-80 are

• Comprehensive navigation data displays

• Storage for 999 waypoints and 30 routes

• Alarms: Arrival, Anchor Watch, Crosstrack Error, Ship's Speed, Water Temperature, Depth, and Trip

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

7. GPS MONITOR

8. SELF TESTS

9. SYSTEM SETTINGS

SATELLITE MONITOR BEACON RCVR MONITOR

STATION MESSAGE

1. MEMORY, I/O PORT TEST

2. KEYBOARD TEST

3. TEST P ATTERN

4. AUTOMA TIC TESTING

1. PLOTTER SETUP

2. UNIT SETUP

3. DATA1, 3 OUTPUT SETUP

4. DATA2 OUTPUT SETUP

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

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. System Configuration

ANTENNA UNIT

Receives GPS signals.

BEACON ANTENNA UNIT

Receives GPS correction data from DGPS reference station.

Ship's Mains

10.2 to 31.2 VDC

DISPLAY UNIT

Receives and processes GPS signals to fix position and display it in latitude/longitude or LOP.

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

• By latitude and longitude

• By LOP

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.)

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.

ESC

DISPLAY SEL

WPT

RTE

MARK

ZOOM IN

CENTER

TONE

NU/CU

ENT

EVENT MOB

GOTO

PLOT ON/OFF

ZOOM OUT

CURSOR ON/OFF

CLEAR

Selects display orientation; registers selections on menus.

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 GP-80 takes about two minutes to find position when turned on for the very first time. Thereafter it takes about 20 seconds to find position each time the power is turned on.

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. If equipped with the internal beacon receiver, "BEACON RCVR INSTALLED" appears at the bottom of the display. The unit starts up with the last used display mode.

PROGRAM MEMORY = OK SRAM = OK Internal Battery = OK

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.

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

noitacidni

etatsreviecerSPG

BEACON RCVR INSTALLED* DATA #3 : LOG PULSE OUTPUT

Several seconds

34° 23.456´ N 135° 45.678´ E

*: This indication is only when beacon re-

later

ceiver is installed.

Figure 1-2 Appearnace of display when

[01]

turning on the power

When turning on the power the following oc-

curs:

20 seconds after turning on the power, accurate position (in latitude and longitude) ap-

WGS84

pears on the display.

2nm

GPS receiving

condition

GPS 3D

BRG

---°

CSE

7°

RNG

123

SPD

12.3

D2)lamron(D2SPG D3)lamron(D3SPG

laitnereffiD

)lamron(D2SPGD

)lamron(D3SPGD

Figure 1-2 Appearnace of display when turning on the power

1–2

Note 1: When PDOP value exceeds 6 in the

Plotter 1 Plotter 2 Highway

Navigation

Data

3D mode, the position fixing method is automatically changed to 2D.

1.4 Selecting the Display Mode

Note 2: The "DEMO" icon appears when the

display is in the demonstration mode. T o return to normal mode, turn off the power and turn it on while pressing and holding down the [NU/ CU ENT] key.

Note 3: Refer to page 10-2 about HDOP and PDOP.

Turning the power off

Press the [POWER] key. 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:

8 (0~31)

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

(DATUM: WGS-84)*

: Select

MENU : Escape

* Shows currently selected geodetic chart datum.

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.

Brilliance:

MENU : Escape

4 (0~4)

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.

Sample displays of each display mode are shown in the figures on the next several pages.

1–3

Plotter 1 display

Plotter 2 display

Cursor position or lighthouse data, when cursor is on

Own ship's track

Own ship mark

Course bar

34° 23.456´ N 135° 45.678´ E

WGS84

2.00 nm

Horizontal range

Course

Course width

Cursor

GPS receiving condition

Alarm range

[01]

Grid

Speed, or range from own ship to cursor

Bearing from own ship to destination waypoint

DGPS 3D

BRG

44°

CSE

32°

BRG TO +

123°

RNG TO +

11.5

Range from own ship to destination waypoint, or bearing from own ship to cursor

Course

Ship's position appears when cursor is off

34° 23.456´ N 135° 45.678´ E

[01]

WGS84

2.00 nm

Figure 1-6 Plotter 2 display

Highway display

Bearing from own ship to

Position

detination waypoint

DGPS 3D

Course

Figure 1-5 Plotter 1 display

WGS84

North mak

Cross track error scale

Own ship mark

Range from own ship to destination waypoint

Figure 1-7 Highway display

Speed

1–4

Navigation display

1) No autopilot connection

2) With autopilot connection, automatic

mode

Destination waypoint no.

TO;

012

Cross track error meter

Bearing scale

BRG

Bearing from own ship to destination waypoint

63°

CSE

0.1nm 0.1nm

ETA TTG

23:45'

Estimated Time of Arrival (15th23:45)

Cross track error scale

123°

Cross track error indication

17H 45M

Time To Go (3days17hrs45min)

Velocity To Destination

distance

Speed

DGPS 3D

SPD

12.3

VTD

10.3

RNG

123

TRIP

789

Trip

Range from own ship to destination waypoint

TO;

012

BRG:

63°

CSE:

0.1nm 0.1nm

Auto Pilot Hdg

Auto

Auto mode

123°

Heading

Str

P 23°

Rudder angleRudder angle

DGPS 3D

SPD

12.3

VTD

10.3

RNG

123

TRIP

789

Figure 1-9 Navigation display, with

autopilot connection, automatic mode

3) Autopilot connection, modes other than

automatic mode (manual, nav, etc.)

Figure 1-9 Navigation display,

no autopilot connection

TO;

- - -

BRG:

63°

CSE:

0.1nm 0.1nm

Auto Pilot Hdg

Man

Man: Manual mode Nav: Nav mode Other:---

Figure 1-10 Navigation display, with

autopilot connection, modes other than

123°

Str

123°

Heading

the automatic mode

P 23°

SPD

12.3

10.3

Rudder angle

DGPS 3D

VTD

AP CSE

123°

TRIP

789

Autopilot-set course

1–5

Data display

(Window assignment and size of characters are user-definable)

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

223.4°

CSE

123.4°

User-defined display data #4

Figure 1-11 Data display mode

TO : 001

MARINE POINT1

NEXT : 002

MARINE POINT2

Current destination waypoint Next destination waypoint

User-defined display data #3

*:"- -" appears until calculating position after

turning on the power. If fixing error occurs this indication stops.

1.5 Chart Icons

Various icons appear on the display to alert you to equipment status.

: L/L position offset applied. : Track recording tunned off. : Alarm is violated. : North mark. : Demonstration display.

1–6

2. TRACK

2.1 Enlarging/Shrinking the Display

2.3 Shifting the Cursor

The cursor can be shifted with the cursor keys.

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

2) Press the cursor keys.

You may enlarge and 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 plotter 1 and 0.36, 0.71, 1.42, 2.84,

5.69, 11.38, 22.76, 45.51, 91.02, 182.04,

273.07 nautical miles for plotter 2 display. The [ZOOM IN] key enlarges the display and

the [ZOOM OUT] key shrinks it. Each time a zoom key is pressed the display range appears at the center of the display for about three seconds.

2.2 Selecting Display Orientation

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

The cursor moves in the direction of the cursor key pressed. When the cursor reaches the edge of the display, the display shifts in the direction opposite.

Data and cursor state

Cursor state determines what data are shown on the display.

Cursor turned on, cursor data

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.

Cursor turned off

Cursor mark Cursor position in latitude and longitude

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.

Destination not set

Ship's heading or course is at the top of the display . The north mark appears at the left side of the display.

34° 23.456´ N 135° 45.678´ E

WGS84

2.0 nm

Cursor

Bearing from own

ship to cursor

Figure 2-1 Data displayed when the cursor in on

DGPS 3D

BRG

234°

CSE

345°

BRG To +

123°

RNG To +

11.5

Range from own ship to cursor

2–1

Cursor turned off

2.5 Centering Cursor

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

Course

Speed

Position

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

2) Press the cursor keys to position the cursor.

3) Press the [CENTER] key.

2.6 Centering Own Ship's

Position

1) Press the [CURSOR ON/OFF] key to turn off the cursor.

2) Press the [CENTER] key.

2.7 Stopping/Starting Plotting

and Recording of Track

Figure 2-2 Data displayed when

the cursor is turned off

2.4 Shifting the Display

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.

The GP-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.

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

"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

" "

2–2

Hold icon (appears while recording of track is stopped)

2.8 Erasing Track

The track stored in the memory and displayed on the screen can be erased.

34° 23.456´ N 135° 45.678´ E

This portion of track does not appear on the display

Recording of track turned off

DGPS 3D

BRG

234°

CSE

345°

RNG

123

SPD

12.3

Own ship

Recording of track started

Ship’s track while recording is stopped

CAUTION

Track cannot be restored once erased. Be absolutely sure you want to erase all track.

1) Press the [MENU ESC] key. The MAIN MENU appears.

MAIN MENU

1. DISPLAY SETUP

2. TRACK/MARK SETUP

3. ERASE TRACK/MARK

4. ALARM SETTINGS

5. MANUAL CALCULATION

7. GPS MONITOR

8. SELF TESTS

9. SYSTEM SETTINGS

ENT: Enter MENU: Escape

Figure 2-3 Track not plotted or recor ded

when plotting is stopped

Figure 2-4 MAIN MENU

2) Press [3] to select ERASE TRACK/ MARK.

ERASE TRACK/MARK

Erase Track

Erase Mark

Track Pts. Used: Mark Pts. Used:

: Select

MENU: Escape

Yes Yes

345/1000 Pt

123/1000 Pt

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.

2.9 Selecting 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.

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. T o 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].

Plotting interval by time

The setting range for plotting by time is 00 to 60 minutes.

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

Time

(01'00)

Dist

(00.50nm)

6) Press the [NU/CU ENT] key.

7) Press the [MENU ESC] key.

: Select

ENT: Enter

MENU: Escape

Figure 2-7 TRACK/MARK SETUP menu

2–4

2.10 Apportioning the Memory

3) Press [1] to display the PLOTTER SETUP menu.

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.

CAUTION

All data are erased whenever the memory apportion setting is changed, even when the previous value is re-entered.

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

3. DATA 1, 3 OUTPUT SETUP

4. DATA 2 OUTPUT SETUP

5. DATA 4 I/O SETUP

6. GPS SETUP

7. DGPS SETUP

8. LOP SETUP

9. CLEAR MEMORY

ENT: Enter MENU: Escape

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.

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 ?

ENT: Yes MENU: No

Figure 2-10

Figure 2-8 SYSTEM SETTNGS menu

7) Press the [NU/CU ENT] key.

8) Press the [MENU ESC] key.

2–5

2.11 Selecting Bearing

Entering magnetic variation

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.

Displaying 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.

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.

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.

] key to change

8) Press the [NU/CU ENT] key.

9) Press the [MENU ESC] key.

2–6

3. MARKS

At cursor intersection

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

3.1 Entering/Erasing Marks

Marks can be inscribed on the Plotter 1 and Plotter 2 displays. You may inscribe a mark anywhere, in one of 13 shapes. Further, 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 alert you. To enter a mark when the mark memory is full, erase unnecessary marks.

Can't save mark Memory full

Figure 3-1

2) Operate the cursor keys to place the cursor on the location for the mark.

3) Press the [MARK] key.

Erasing marks

CAUTION

All marks, including event marks and the MOB mark, are 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.

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 thre3e seconds to alert you. Check the antenna cable for tight connection.

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.

Erasing all marks

1) Press [MENU ESC] and [3] to display the ERASE TRACK/MARK menu.

ERASE TRACK/MARK

Erase Track

Erase Mark

Track Pts. Used: Mark Pts. Used:

: Select

MENU: Escape

Yes Yes

345/1000 Pt

123/1000 Pt

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 ?

3.3 Connecting Marks (selecting mark connection

ENT: Yes MENU: No

Figure 3-4

4) Press the [NU/CU ENT] key.

5) Press the [MENU ESC] key.

3.2 Selecting Mark Shape

13 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

Time

(01'00)

Dist

(00.50nm)

line)

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.

4) Press the [NU/CU ENT] key.

5) Press the [MENU ESC] key.

Mark Shape

Mark Line

Event Mark

: Select

ENT: Enter

MENU: Escape

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

3.4 Entering Event Marks

3.5 Selecting Event Mark

Event marks can denote any important present position; for example, a good fishing spot. Event marks can be saved as ordinary marks and the unit automatically numbers them from 01 to 99.

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.

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.

Shape

Event marks are available in 10 shapes. 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 3-7

Entering event marks

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 "3.1 Entering/ Erasing Marks".

3–3

3.6 Entering the MOB Mark

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, and each time the MOB mark is entered the previous MOB mark and its position data are written over.

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.

2) Press the [NU/CU ENT] key. If the display in use is Highway, Navigation or Data, they are automatically replaced by the Plotter 2 display.

Note: You may cancel MOB position as destination 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.

Erasing MOB mark

See "3.1 Entering/Erasing Marks". (MOB marks cannot be erased with the cursor.)

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

3–4

4. NAVIGATION PLANNING

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.

4.1 Registering Waypoints

In navigation terminology a waypoint is a particular location on a voyage whether it be a starting, intermediate or destination waypoint.

The GP-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.

Registering waypoints by the cursor

1) Press the [WPT R TE] key . The W aypoint/ Route menu appears.

Waypoint/Route

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 deleted.

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.

30° 12.345' N 135° 23.456' W

AUG 12’ 95 12 : 34U

No.

123 Mark : Cmnt :

: Cursor

ENT: Enter

MENU: Escape

Figure 4-1 Waypoint/Route menu

2) Press [1] to select Cursor. The following display appears.

Place cursor on desired location

ENT: Enter MENU: Escape

Figure 4-2

: Column: Cursor

ENT: Enter

MENU: Escape

Figure 4-3

5) Enter waypoint number, in three digits (001–999).

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

7) Press t or s to select mark shape.

8) Press the [NU/CU ENT] key . The display shown in Figure 4-5 appears.

ABCDE FGHIJ KLMNO PQRST UVWXYZ abcde

1 2 3 4 5 6 7 8 9 0 _ # % ’ ( ) + - . / : ; < = > ?

fghij

klmno

ENTER

pqrst

uvwxyz

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 alright to write over the waypoint and its data, press the [Y] key. T o change waypoint number, press the [N] key .

1st line Are you sure to change ?

ENT: Yes MENU: No

COMMENT:

: Cursor

ENT: Set

_ _ _ _ _ _ _ _ _ _ _ _

MENU: Escape

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.

1 Press the cursor keys to select alpha-

numeric character.

2 Press 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.

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.

• To clear wrong data, press the [CLEAR] key.

3 Repeat steps 1 and 2 to complete the

comment.

4 Select ENTER and press the [NU/CU

ENT] key.

10)Press the [NU/CU ENT] key.

4–2

Registering waypoints by MOB position/event position

Registering waypoints by 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.

Note: When there is no position data, you cannot 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 "Registering waypoints by the cursor" on page 4-1.

Registering waypoints through the waypoint list

[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.

4) Press the [NU/CU ENT] key.

5) Follow steps 5 through 11 in "Registering waypoints by the cursor" on page 4-1.

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

004

: L/L´LOP

ENT: Enter

° . ' N ° . ' W

AUG 12' 95 12 : 35U

AUG 13' 95 13 : 45U

: Edit

MENU: Escape

Figure 4-10

4) Press ▲ or ▼ to select waypoint number .

5) Press t or s to enter position. The dis- play should now look something like Figure 4-11.

4–3

Edit = Waypoint : 001

_ _°

_ _._ _ _' N _ _ _°_ _._ _ _' W

Mark : Cmnt :

ENT: Enter

: Cursor

: 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 ▼.

4.2 Editing Waypoints

1) Press [WPT RTE] and [4].

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

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.

12) To enter another waypoint through the waypoint list, return to step 4.

13)Press the [MENU ESC] key to finish.

This wpt is GOTO This wpt is in registered route This wpt is in selected route

Figure 4-12

6) Press the [NU/CU ENT] key. The waypoint and its data are deleted.

Enter new data, referring to "4.1 Registering Waypoints".

7) Press the [MENU ESC] key.

4–4

4.3 Deleting Waypoints

4.4 Registering Routes

Deleting waypoints by the cursor

1) Place the cursor on the waypoint to delete.

2) Press the [CLEAR] key.

Deleting waypoints through the waypoint list

1) Press [WPT RTE] and [4].

2) Press ▲ or ▼ to select waypoint to de- lete.

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

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 GP-80 can automatically advance to the next waypoint on a route, so you do not have to change the destination waypoint repeatedly .

The GP-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.

Registering routes

1) Press the [WPT/RTE] key.

2) Press [5] to select Route Planning. The route list appears.

ROUTE LIST

No. PTS Total Dist. TTG Remarks

02 03 04

05 06

ENT: Enter

1234 . 56 nm

234 . 56 nm *999. 99 nm

. nm

6543 . 21 nm

. nm

12D15H28M 2D08H35M

*9D*9H*9M

D H M

34D23H45M

D H M

: Edit: Route No.

MENU: Escape

UseFwd

Figure 4-13

Note: All waypoint marks (as well as all other marks) and their data can be cleared collectively by clearing the Plotter memory. For further details, see page 9-1.

4) Press the [NU/CU ENT] key.

Note: To cancel erasure, press the [MENU ESC] key instead of the [NU/CU ENT] key. The waypoint list appears.

5) Press the [MENU ESC] key.

Remarks Use: In use Fwd: Traverse waypoints in forward order Rvs: Traverse waypoints in reverse order

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)

001

002

: RTE WPT

ENT: Enter

Use: In use Fwd: Traverse waypoints in forward order Rvs: Traverse waypoints in reverse order

34° 12.345' N 130° 23.456' E

MARINE POINT

36° 12.345' N 135° 23.456' E

A POINT

MENU: Escape

AUG 12' 95 12 : 35U

AUG 13' 95 13 : 45U

CLEAR: Delete

D M H D M H

Figure 4-15 Route editing screen

Route editing screen

Waypoint list

Using previously registered waypoints

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 disapperars.

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.

10) To enter other route waypoints, repeat steps 8 and 9.

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 nubmer directly or through the route editing screen. Follow 1 or 2 below.

Entering waypoint number directly

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.

11)Press the [MENU ESC] key to finish.

Note: T o return to the route editing screen, press [

4.5 Deleting Route Waypoints

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 delete.

5) Press the [CLEAR] key.

6) Press the [NU/CU ENT] key.

7) Repeat steps 4 through 6 to continue deleting waypoints.

8) Press ▼ to continue. If the waypoint en-

tered 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)Press [MENU ESC] to finish.

4–6

8) Press the [MENU ESC] key. The route is rearranged to reflect the change.

4.6 Replacing Route

4.7 Deleting Routes

Waypoints

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 cursor 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

Figure 4-16

1) Press [WPT RTE] and [5] to display the route list.

2) Press ▲ or ▼ to select route to delete.

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

4) Press the [NU/CU ENT] key.

5) Press the [MENU ESC] key.

7) Press the [NU/CU ENT] key.

8) Press the [MENU ESC] key twice.

4–7

This page is intentionally left blank .

5. STARTING FOR DESTINATION

Setting destination by cursor

Using the cursor you may set a destination consisting of 30 points. When all 30 points are entered, the GP-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.

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

Figure 5-1

Note 2: Previous destination is cancelled whenever a destination is set.

Setting single destination

1) Press the [GOTO] key. The menu shown in Figure 5-2 appears.

GOTO Setting

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.

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

Overwriting ? ENT:Yes MENU:No

Figure 5-6

8) Press the [NU/CU ENT] key. The waypoints do not have waypoint num-

bers, however you can attach waypoint numbers by doing the following.

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

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 dig-

its.

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.

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.

5–2

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.

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.)

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.

Note: A waypoint must exist to set it as destination. 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

Figure 5-11 Waypoint list

Set destination by following 1 or 2 on the next page.

5–3

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.

2 Setting destination by selecting wpt.

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.

Route number can be entered here when this line appears in reverse video.

GOTO (Route List)

Route No.

No.

PTS

02 05

30 30

: No. List

ENT:Enter

TOTAL

1234. 56nm

234. 56nm

*999. 99nm

6543. 21nm

57. 89nm

tFORWARDs

12D15H28M

2D08H35M

0D10H28M

*9D*9H*9M

34D23H45M

MENU:Escape

Figure 5-13 Route list

1 1

1 By entering route number

1 1

TTG

5) Press the [NU/CU ENT] key. Own ship position becomes starting point and

a dashed line runs between it and the waypoint selected.

Setting route as destination

Note: Route entered must exist to set it as des-

tination. 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.

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.

2 By selecting a route

3) Press [

]. Each press of the key alternately enables manual entry of route number and selection of route number (through the route window)

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.

5–4

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.

Waypoint 01

Port A

Waypoint 02

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.

T o reselect the waypoint, select it on the route list and press [

] to change "DI" to "EN".

Port B

Waypoint 03

New course

Waypoint 06

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

skip Distance TTG

(In Use, REVERSE)

5.2 Cancelling Destination

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

Figure 5-16

3) Press the [NU/CU ENT] key.

001

Trial Speed Auto Man (012.0kt)

01 0 04 EN

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

D M H

CLEAR: Delete

MENU:Escape

Figure 5-15 Route list

5–5

5.3 Erasing Route W aypoints

When flags are erased

(flags)

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

Figure 5-17

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

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

Calculation Procedure

Bearing Between Two Points

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.

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.

You can find the range and bearing between two points by two waypoints or two latitude and longitude positions.

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 5-20 MANUAL CALCULATION menu

1) Press [MENU ESC] [9] and [1] to display the PLOTTER SETUP menu.

PLOTTER SETUP

Memory Apportion

Bearing Ref.

Mag Variation

User defined #1 SPD

User defined #2

User defined #3 RNG

User defined #4 BRG

ENT:Enter

Trk = 1000 / 2000Pt

True

Auto

(07° W)

R.L

CRS

MENU:Escape

Mag

Man

(00° E)

G.CCalculation

Figure 5-19 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.

2) Choose two points by one of the methods below .

Latitude and longitude positions

1) Press ▼.

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 (001-

999). (000 is reserved for own ship position.)

2) Press ▼ twice.

3) Key in other waypoint number (001-

999).

(Continued on next page)

5–7

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.

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 TA" appears. If the data contains error , "*" and all nines appear as the calculation results.

7) 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 Selecting Data to Display on the Data Display

The user may select what data to display in four locations on the data display.

• Total route distance (RT.DIST)*

• Trip distance (TRIP)

• Trip elapsed time (TRIP TM)

• Water temperature (W.TMP)#, and

• Velocity to destination (VTD)*

*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.

SEP 12, 1995 23:59'59" U DGPS 3D

POSITION

12° 23.456' N 123° 23.456' E

WGS72

RNG

31.23

SPD

12.3

User-defined display data #1

User-defined display data #2

User-defined display window

BRG

223.4°

CSE

123.4°

User-defined display data #4

User-defined display data #3

Figure 6-1 Data display

# Requires external sensor

1) Press [MENU ESC] [9] and [1] to display the PLOTTER SETUP menu.

TO : 001

MARINE POINT1

NEXT : 002

MARINE POINT2

Figure 6-2 PLOTTER SETUP menu

2) Press ▲ or ▼ to select one of four of "User defined" (#1, #2, #3, #4).

The data the user may select to display are;

• Altitude (AL T)*

• 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)

• ETA to route

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 Selecting Position Format

1 For Loran LOPs

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.

3) Press t or s to select Lat/Long or LOP .

4) Press the [NU/CU ENT] key.

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.

2 For Decca LOPs

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].

8) Key in Decca lane pair. Red, [1]; Green [2], and Purple [3].

9) Press ▼.

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.

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

Registering 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

] to display LOPs.

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.

003 _ _ _ _ _ , _ _ _ _ _ _ , _ ___ _ _ _ _ _ _ _ _ _ _ _ _

004 _ _ _ _ _ , _ _ _ _ _ _ , _ ___ _ _ _ _ _ _ _ _ _ _ _ _

: L/L LOP

ENT : Enter

MENU : Escape

: Edit

Figure 6-4 LOP display on the waypoint list

3) Press ▲ or ▼ to select waypoint number .

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' Mark : Cmnt : MARINE POINT

N 130° 23.456' E)

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 .

: Cursor

ENT : Enter

Loran C LOP input screen

Edit=Waypoint : 001

DE : 32 (9C) RED GREEN 1 A:12.23 2H:24.35 (34° 12.345' Mark : Cmnt : MARINE POINT

ABCDEFGHIJ ﬁ 1, 2 ~ 9, 0

ENT : Enter

N 130° 23.456' E)

: Cursor

Decca LOP input screen

: Column

MENU : Escape

: Column

MENU : Escape

Figure 6-5 LOP input screens

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 . After the test results appear, the Simulation Mode menu appears.

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 icon

appears in the plotter 1, 2,

and highway display . All controls are operative.

Note: The return to the normal mode, turn off the power and then turn it on while pressing and holding down [NU/CU ENT] key.

Note: When the memory is cleared while in the demonstration mode, the equipment starts up in the normal mode.

6–4

7. ALARMS

1) Press the [MENU ESC] key.

2) Press [4] to display the ALARM SETTINGS menu.

There are seven alarm conditions which generate both audible and visual alarms.

When an alarm setting is violated, the buzzer sounds and the name of the offending alarm appears on the display. The alarm icon also appears on the Plotter 1, Plotter 2 and Highway displays.

34° 23.456´ N 135° 45.678´ E

Alarm message

DGPS 3D

BRG

234°

CSE

345°

Alarm icon

Arrival alarm Speed alarm

Press CLEAR to silence beep

RNG

123

SPD

12.3

Press CLEAR

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 7-3 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.

Press CLEAR to close window

Figure 7-1 Location of alarm

messages and alarm icon

7.1 Arrival Alarm, Anchor Watch Alarm

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

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. You can silence the audible alarm by pressing the [CLEAR] key. T o erase the visual alarm, press the [CLEAR] key again.

To disable the alarm, select Off at step 4.

Own ship's position

Destination waypoint

: Alarm range

Figure 7-2 How the arrival alarm works

7–1

Anchor watch alarm

7.2 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. When own ship drifts by the range set here,

the buzzer sounds and the message "Anchor alarm" appears. You can silence the audible alarm by pressing the [CLEAR] key . T o erase the visual alarm, press the [CLEAR] key again.

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. You can silence the audible alarm by pressing the [CLEAR] key. To erase the visual alarm, press the [CLEAR] key again.

To disable the alarm, select Off at step 3.

Destination waypoint

To disable the alarm, select Off at step 3.

7–2

7.3 Ship’s Speed Alarm

7.4 Trip Alarm

The ship’s 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.

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

ENT : Enter

: +/-

Figure 7-6 Alarm settings menu, page 2/2

When speed is higher or lower (or within) than the speed set here, the buzzer sounds and the message "Speed alarm" appears. You can silence the audible alarm by pressing the [CLEAR] key . T o erase the visual alarm, press the [CLEAR] key again.

To disable the alarm, select Off at step 3.

3) Press ▲ or ▼ to select Trip.

4) If necessary, press [CLEAR] to reset the

trip distance and trip elapsed time (see page 6-1).

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. You can silence the audible alarm by pressing the [CLEAR] key. T o erase the visual alarm, press the [CLEAR] key again.

7–3

7.5 W ater Temperature Alarm

7.6 Depth Alarm

The water temperature alarm sounds when the water temperature is higher or lower (or within) the preset temperature. This alarm requires 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. You can silence the audible alarm by pressing the [CLEAR] key. To erase the visual alarm, press the [CLEAR] key again.

To disable the alarm, select Off at step 4.

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. You can silence the audible alarm by pressing the [CLEAR] key. T o erase the visual alarm, press the [CLEAR] key again.

To disable the alarm, select Off at step 4.

7.7 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

Selecting fix mode

Entering GPS speed smoothing

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

: 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.

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.

Entering 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.

5) Press the [MENU ESC] key.

Entering geodetic datum

1) Press [MENU ESC] [9] and [6].

Disabling satellites

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.

Entering GPS position smoothing

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.

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

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 (001–173) referring to the geodetic chart list in the Appendix.

4) Press the [NU/CU ENT] key.

5) Press the [MENU ESC] key.

8 – 2

Entering 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].

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.

2) Press ▲ or ▼ to select Posn Offset on page

2/2.

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.

Entering time difference

1) Press [MENU ESC] [9] and [6].

2) Press ▲ or ▼ to select T ime Diff on page 2/2.

8.2 Selecting 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

km sm

ft FA

° F

Unit of Distance

Unit of Depth Unit of Temp. Unit of Altitude

:Select

ENT : Enter

° C

MENU : Escape

3) Key in time difference (–14:00 to +14:00).

4) Press [ ] to change from plus to minus or vice versa.

5) Press the [MENU ESC] key.

Entering 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.

Figure 8-3 UNIT SETUP menu

2) Press ▲ or ▼ to select Unit of Distance.

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.

Unit of depth

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.

8–3

Unit of water temperature

3) Press t or s to select brilliance.

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.

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.

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

The time mark can be displayed in light or dark tone, or turned off.

1) Press [MENU ESC] and [1].

8.3 Mark, Character Size and

Brilliance

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

Dark Dark

Dark

Dark Large Large

: Select

Light Light Light Small Small

Off Off Off

2) Press ▲ or ▼ to select Time Mark.

3) Press t or s to select brilliance.

4) Press the [NU/CU ENT] key.

5) Press the [MENU ESC] key.

ENT : Enter

MENU : Escape

Figure 8-4 DISPLAY SETUP menu

2) Press ▲ or ▼ to select Grid.

8–4

Waypoint mark size

SEP 12, 1995 23:59'59" U DGPS 3D

N12°

E123°

POSITION

23.456'

SEP 12, 1995 23:59'59" U DGPS 3D

12° 23.456' N 123° 23.456' E

POSITION

RNG

31.23

SPD

12.3

BRG

223.4°

CSE

123.4°

TO : 001

MARINE POINT1

NEXT : 002

MARINE POINT2

ZOOM

OUT

Cursor

Position

User-defined display window

WGS84

Enlarging characters

The size of the waypoint mark can be selected to large or small.

Large waypoint mark

No icon With icon

Small waypoint mark

Figure 8-5 Waypoint mark size

1) Press [MENU ESC] and [1].

2) Press ▲ or ▼ to select Waypoint 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.

To switch character size from enlar ged to normal, press the [ZOOM OUT] key at step 3.

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 Settings for Connection of Navigator

Besides its fundamental function of displaying position, the GP-80 can also output various data to external equipment. 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 GP-80 transmits data using the GP (GPS talker), however it can also transmit using the Loran (LC) or Decca (DE) talker.

Because the GP talker is a relatively new system some early model equipment may not recognize this talker.

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.

For detailed information about Tx interval see the installation manual. However, the settings entered by the installer of the equipment should not be changed unless absolutely necessary.

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)81%

1. AAM:00 APA:00 APB:04 BOD:00

2. BWR:00 BWW:00 GGA:00 GLL:01

3. RMB:01 RMC:01 VTG:01 WCV:01

4. WNR:00 WPL:00 XTE:00 ZDA:01

5. ZLZ:00 ZTG:01 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

BWC and WNC are for great circle navigation and BWR and WNR are for rhumb line navigation.

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%.

Figure 8-8 DATA 1, 3 OUTPUT

SETUP menu

2) Press ▲ or ▼ to select Data Fmt.

8-6

DATA 2 output setting

Setting DATA 4 to NMEA

1) Press [MENU ESC] [9] and [4]. The DA TA 2 OUTPUT SETUP menu appears.

DATA 2 OUTPUT SETUP

Data Fmt. V1.5 V2.0 IEC

Talker ID GP LC DE Output Data (00-90 sec)81%

1. AAM:00 APA:00 APB:04 BOD:00

2. BWR:00 BWW:00 GGA:00 GLL:01

3. RMB:01 RMC:01 VTG:01 WCV:01

4. WNR:00 WPL:00 XTE:00 ZDA:01

5. ZLZ:00 ZTG:01 Rnn:00 RTE:00

: Select

ENT : Enter

Settings shown here are default settings.

MENU : Escape

Figure 8-9 DATA 2 OUTPUT

SETUP menu

2) Follow the procedure for setting DATA 1 output.

The DA TA 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

Appears only when external DGPS receiver is used.

RS232C

: Select

MENU : Escape

Figure 8-10 DATA 4 I/O SETUP menu (1/2)

DATA 3 output setting

The DAT A 3 connector can output IEC 611621/NMEA 0183 data or log pulse. (For details, see the Installation Manual.) 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 DA T A 3. Log Pulse.

3) Press t or s to select log pulse of exter- nal equipment; 200ppm or 400ppm.

4) Press the [NU/CU ENT] key twice.

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 T o Next Page. The DAT 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) 81%

1. AAM:00 APA:00 APB:04 BOD:00

2. BWR:00 BWW:00 GGA:00 GLL:01

3. RMB:01 RMC:01 VTG:01 WCV:01

4. WNR:00 WPL:00 XTE:00 ZDA:01

5. ZLZ:00 ZTG:01 Rnn:00 RTE:00

ENT : Enter

MENU : Escape

Figure 8-11 DATA 4 I/O SETUP menu (2/2)

7) Follow "DA T A 1 output setting" from step

8-7

8.5 Receiving Data from Personal Computer

Loading erases current data Are you sure to load ?

Loading lighthouse/buoy data

Lighthouse data can be downloaded from a personal computer, through the DATA 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 DAT 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

Load Data

Command Stop Start Save Data WPT/RTE Command Stop Start

ENT : Enter

L.House

: Select

MENU : Escape

ENT: Yes MENU:No

Figure 8-13

13) Press the [NU/CU ENT] key. The message shown in Figure 8-14 appears while data is being loaded.

Now loading Light House data !

MENU:Stop

Figure 8-14

14) Operate the computer to output data. When data is loaded, the cursor shifts to Stop.

15)Press the [MENU ESC] key.

Stopping loading of data

1) Press the [MENU ESC] key . The message shown in Figure 8-15 appears.

Are you sure to stop ?

Figure 8-12 DATA 4 I/O SETUP menu (2/2)

7) Press ▲ or ▼ to select Baud Rate.

8) Press t or s to select baud rate; 4800bps, 9600bps, or 19200bps.

9) Press the [NU/CU ENT] key.

10)Press t to select L.House.

11)Press ▼ to select Command. Stop, on the same line as Command, appears in reverse video.

12)Press s to select Start. The message shown in Figure 8-13 appears.

8–8

ENT: Yes MENU:No

Figure 8-15

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.

Viewing lighthouse/buoy data

To view lighthouse/bouy data on the display, place the cursor on the lighthouse mark. Data of the lighthouse/buoy appears at the top of the display.

Loading waypoint/route

1) Do steps 1 through 9 in "Loading lighthouse/buoy data."

2) Press t or s to select WPT/R TE.

3) Press ▼ to select Command. Stop, on the same line as Command, appears in reverse video.

4) Press s to select Start. The message shown in Figure 8-16 appears.

Loading erases current data and stops Route navigation Are you sure to load?

ENT: Yes MENU: No

Figure 8-16

5) Press the [NU/CU ENT] key. The message shown in Figure 8-17 appears.

If data could not be loaded, the message shown in Figure 8-19 appears.

Failed in loading Invalid data Press any key

Figure 8-19

Loading waypoint data from YEOMAN equipment

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 8-20 appears.

Are you sure to load ?

Now loading Waypoint/Route data !

MENU:Stop

Figure 8-17

6) Operate the computer to output data. When data is loaded, the cursor shifts to Stop.

7) Press the [MENU ESC] key. When data is loaded successfully, The message in Figure 8-18 appears.

Loading ended successfully

Press any key

Figure 8-18

ENT: Yes MENU:No

Figure 8-20

5) Press the [NU/CU ENT] key. The message shown in Figure 8-21 appears.

Now loading Waypoint data !

MENU:Stop

Figure 8-21

6) Operate the YEOMAN to output data.

When data is loaded, the cursor automatically shifts to "Stop". Waypoints are loaded into empty areas. When the waypoint area becomes full, the message shown in Figure 8-22 appears.

Waypoint area is full ! Can't load any data Press any key to stop

Figure 8-22

8–9

7) When the data is loaded, press [CU/NU ENT] and [MENU ESC]. The message shown in Figure 8-23 appears.

11) Press the [NU/CU ENT] key. The message shown in Figure 8-25 appears while data is being saved.

The number of valid and invalid waypoints appears in the message.

Loading completed Valid waypoint : 0 Invalid waypoint : 0 Press any key

Figure 8-23

8) Press the [MENU ESC] key twice.

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.

Now saving Waypoint/Route data !

MENU:Stop

Figure 8-25

12)Save data at the computer.

13)Press the [MENU ESC] key. When data is saved, the cursor shifts to Stop.

15)Press the [MENU ESC] key.

8.6 DGPS Settings

A DGPS beacon receiver (built in or external) may be connected to the GP-80 to further refine position accuracy. Set up to receive the DGPS beacon signal as follows.

Selecting DGPS station

The default setting is "manual".

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; 4800bps, 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 8-24 appears.

Are you sure to save ?

ENT: Yes MENU:No

Figure 8-24

Automatic

The GR-800 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

8–10

: Select

ENT : Enter

MENU : Escape

Figure 8-26 DGPS SETUP menu

2) Set DGPS MODE On.

To Previous Page First Bit MSB LSB Parity EVEN ODD NONE Stop Bit 1 2 Baud Rate 4800 9600

DATA 4 I/O SETUP "DGPS" 2/2

MENU : Escape

ENT : Enter

: Select

First Bit

LSB

3) Press ▲ or ▼ to select Ref. Station.

Setup for external DGPS beacon receiver

4) Press t or s to select Auto.

5) Press the [NU/CU ENT] key.

6) Press the [MENU ESC] key.

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) Set DGPS MODE On.

3) Press ▲ or ▼ to select Ref. Station.

4) Press t or s to select Man.

When an external DGPS beacon receiver is connected to the DATA 4 connector, set up the GP-80 according to specification of DPGS beacon receiver connected as follows.

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.

5) Press t or s to select DGPS.

6) Press ▼ to select To Next Page.

5) 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.

6) Press the [NU/CU ENT] key.

7) Enter frequency in four digits (283.5kHz to 325.0kHz).

8) Press the [NU/CU ENT] key . "Baud Rate" appears in reverse video.

9) Press t or s to select baud rate; 25, 50, 100 or 200bps.

10)Press the [MENU ESC] key.

Figure 8-27 DATA 4 I/O SETUP

"DGPS" 2/2 menu

7) Press ▲ or ▼ to select First Bit.

8) Press t or s to select first bit; MSB or LSB.

9) Press ▼ to select Parity.

10)Press t or s to select parity bit; EVEN, ODD or NONE.

11)Press ▼ to select Stop Bit.

12)Press t or s to select stop bit; 1 or 2.

13)Press ▼ to select Baud Rate.

14)Press t or s to select baud rate; 4800 or 9600.

15)Press the [MENU ESC] key.

8–11

8.7 Displaying GPS Monitor

Aug 21 1995 23:59'59" U

DGPS 3D

Displays

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.

BEACON STATION

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

NAME: ID: _ _ _ _

Bit Rate: _ _ _ bps Sig Strength: _ _ 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.

Health: _ Freq: _ _ _ . _ kHz SNR: _ _ dB

Good

DGPS station

data

DGPS 3D

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

:BEACON RCVR MONITOR

MENU:Escape

Satellite number with circle is used for positioning.

Fixing date and time

Receive signal level (When signal level is more than 35, it is used for positioning.)

DGPS 3D

SV (PRN)

01 12 31

18 19

09 08

DOP:1.5

DOP value

GPS fix state

:SATELLITES MONITOR

MENU:Escape

STATION MESSAGE

SNR

Return to SATELLITES MONITOR

Figure 8-28 GPS monitor displays

8–12

SATELLITES MONITOR

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 GP-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

2) Press ▲ or ▼ to select Clear GPS.

3) Press s to select Y es. The following mes- sage 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.

: Select

MENU : Escape

Figure 9-1 CLEAR MEMORY menu

2) Press ▲ or ▼ to select Clear Plotter.

3) Press s to select Y es. 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.

3) Press s to select Yes. The message shown in Figure 9-4 appears.

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 the GPS and plotter memories. Reapply power to the equipment to restore normal operation.

9–1

9.2 Preventative Maintenance

9.3 Error Messages

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

Error messages appear on the display to alert you to possible trouble.

WARNING

Do not open the display unit cover. High voltage exists inside.

If the unit is not working properly, contact your dealer.

GPS error

When GPS signal is suddenly lost and position cannot be calculated within one minute the message shown in Figure 9-5 appears.

GPS No fix

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.

WARNING

Use only a 2A fuse in the power cable.

Use of different fuses may cause fire.

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

Figure 9-6 DOP error message

9–2

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 Self Test Error

Figure 9-8 Self test error message

If the self test error message appears, consult your dealer for advice.

9–3

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

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9–4

9.5 Self Tests

Whenever NG or 16 hexadecimal figure appears contact your dealer for advice.

Memory and I/O circuits test

1) Press [MENU ESC] and [8] to display the SELF TESTS menu.

SELF TESTS

1. Memory, I/O Port Test

2. Keyboard Test

3. Test Pattern

4. Automatic Testing

GPS PROGRAM No. 4850100 NAV PROGRAM No. 2051011 BOOT PROGRAM Code A

:Cursor

ENT:Enter

MENU:Escape

Figure 9-9 SELF TESTS menu

2) Press [1].

MEMORY, I/O PORT TEST

DA T A 1 POR T , DAT A 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.

4) Press the [MENU ESC] key to escape.

Note: The life of the internal battery is approximately 5 years.

Name Type Code No.

Lithium CR2450-F2ST2L 000-144-941

Keyboard test

1) Press [MENU ESC] [8] and [2] to display the KEYBOARD TEST screen.

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

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.

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.

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.

OK appears to the right of GPS and BEACON when they are normal; NG and 16 hexadecimal figure appear when an abnormality is found.

9-5

Display test

Automatic testing

1) Press [MENU ESC] [8] and [3] to display the test pattern screens.

2) T o 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.

9–6

10. INTRODUCTION TO GPS

10.1 What is GPS?

10.2 How the GPS Receiver Calculates Position

The GPS receiver’s position is continuously fixed by receiving 3 (or 4) satellites in lineof-sight of the GPS receiver. The basic steps in position fixing are as below.

GPS is an acronym meaning Global Positioning System. GPS (sometimes referred to as NAVSTAR) is a highly precise satellite navigation system developed by the U.S. Department of Defense.

When full global coverage becomes available, a constellation of 24 satellites emplaced in nearly 20,000-kilometer high 12-hour circular orbits will provide highly precise, continuous, worldwide, all-weather position plus time and velocity information to GPS receiverequipped vehicles, vessels and aircraft.

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) Satellite locations and their distances from the GPS receiver are known. The GPS receiver fixes its own position by triangulation.

1 Satellite locations are

GPS fix

calculated.

2 Distances are measured. 3 The GPS fix is the point

of intersection of three spheres which are drawn around the three satellites with diameter d

1, d3,

and d3.

Figure 10-1 How the GPS receiver calculates position

10–1

10.3 Position-fixing Accuracy (HDOP)

In radar position-fixing, most accurate position fixes are obtained when the targets used are spaced nearly 90° from each other. Similarly , GPS position fixing accuracy is subject to satellite location. Generally, the further apart the satellites are from one another, the greater the position-fixing accuracy.

For example, take a look at Figure 10-2. In both situations a fix is obtainable in the Northern Pacific region because three satellites are in line-of-sight. However, accuracy will be higher in the bottom figure since the satellites are spread farther apart than the satellites in the top figure.

The index for position-fixing accuracy is known as HDOP (Horizontal Dilution of Precision) for 2D mode or PDOP for 3D mode. In simpler terms it is the geometrical relationship among 3 (or 4) satellites. The higher the HDOP value the less accurate the position fix. The error in distance is proportional to the HDOP value as shown in Figure 10-3.

ERROR (RMS)

60 m

45 m

30 m

15 m

DOP

3 6 9 12

LOW ACCURACY

HIGH ACCURACY

Figure 10-3 HDOP rate and position error

Note: In this manual HDOP is referred to as DOP.

Figure 10-2 Satellite positions and accuracy

of position fix

10–2

Specifications

GPS Receiver

Number of receiving channels 12 channels parallel, 12 satellite tracking Rx frequency 1575.42MHz Rx code C/A code 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: 12 seconds

Cold start: 90 seconds

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 and mark capacity: 2,000 pts. Lighthouse, 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

Alarms Waypoint arrival, Anchor watch, Cross track error,

Speed, Trip, Water temperature, depth

(Continued on next page)

A – 1

Data Input/Output

Number of ports 4 I/O ports Data format IEC 61162-1/NMEA 0183 Ver. 1.5/NMEA Ver. 2.0 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, 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 31.2V DC, less than 10 W Useable environment Antenna unit: -25°C to +70°C

Receiver unit:-15°C to +55°C Beacon antenna unit:-20°C to +70°C

Humidity 95% (40°C) Waterproofing specification Antenna unit: IEC 529 1PX6

Display unit: IEC 529 1PX5 (USCG CFR-46)

Resistancy 1 to 12.5Hz: 3.2 mmpp

12.5 to 25Hz: 0.8 mmpp 25 to 50Hz: 0.2 mmpp

Dimensions and Weight

Dimenions Antenna unit: ø62 x 67 mm

Display unit: 160 x 250 x 65mm Beacon antenna unit: ø 64 x 212 mm

Mass Antenna unit: 0.1 kg

Display unit: 2.2 kg Beacon antenna unit: 0.6 kg

A – 2

Digital Interface (IEC 61162-1)

Output sentences of channel 1, 2, 3, 4 (DATA 1, DATA 2, DATA 3, DATA 4)

AAM, APB, BOD, BWC, BWR, BWW, GGA, GLL, RMB, RMC, VTG, WCV, WNC, WPL, XTE, ZDA, ZTG, RTE, DTM

Input sentences of channel 1 (DATA 1, DATA2, DATA4)

DBT, DPT, MTW, TLL

Transmission interval

All sentences output at the interval selected (00-90 s).

Load requirements as listener

Isolation: Optocoupler Input impedance: 470 ohms Max. voltage: ±15V Threshold: 3 mA (in case of connection of FURUNO device talker)

Data transmission

Data is transmitted in serial asynchronous form in accordance with the standard referenced in

2.1 of IEC 61162-1. The first bit is a start bit and is followed by data bits. The following parameters are used: Baud rate: 4800

Data bits: 8 (D7 = 0), parity none Stop bits: 1

D0 D1 D2 D3 D4 D5 D6 D7

Start bit

Data bits

Stop bit

A-3

Schematic diagrams

DATA1 port (output)

Output drive capability: Max. 10mA

20P8147

DATA 1

TD-A

TD-B

MJ-A6SRMD

FL1

FL14

R107 27

R101 27

U35 AM26LS31CNS

DATA 1 port (input)

20P8147

DATA 1

RD-H

RD-C

MJ-A6SRMD

FL11

Fl12

JP6

R108 390

R77 100

CR13 1SS226

PC-400

U17

+5V

R64

2.2K

A-4

DATA 2 port (output)

Output drive capability: Max. 10mA

20P8147

DATA2

TD-A

MJ-A6SRMD

FL9

R104 27

TD-B

FL10

DATA 2 port (input)

20P8147

DATA2

RD-H

RD-C

MJ-A6SRMD

FL7

FL8

R105 27

JP7

R109 390

R76 100

CR14 1SS226

U35 AM26LS31CNS

PC-400

U28

+5V

R63

2.2K

A-5

DATA 3 port (output)

Output drive capability: Max. 10mA

20P8147

DATA3

TD-A

TD-B

MJ-A6SRMD

FL6

FL5

JP4

DATA 4 port

R102 27

R103 27

IN/OUT signal is selected by the menu among the output of IEC 61 162-1, NMEA Ver. 1.5/2.0, PC input/output and DGPS signal.

Sentence description

AAM - Waypoint arrival alarm

$--AAM,A,A,x.x,N,c--c*hh<CR><LF> | | | | | | | | | | | +--------- 5 | | | | +------------ 4 | | +---+---------------- 3 | +---------------------- 2 +------------------------ 1

1. Status: A=arrival circle entered

2. Status: A=perpendicular passed at waypoint

3. Arrival sircle radius, nautical miles

4. Waypoint ID

5. Checksum

A-6

APB - Autopilot sentence data

$--APB,A,A,x.x,a,N,A,A,x.x,a,c--c,x.x,a,x.x,a,a*hh<CR><LF> | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------- 13 | | | | | | | | | | | | | | +--------- 12 | | | | | | | | | | | | +--+----------- 11 | | | | | | | | | | +--+----------------- 10 | | | | | | | | | +------------------------ 9 | | | | | | | +--+---------------------------- 8 | | | | | | +---------------------------------- 7 | | | | | +------------------------------------ 6 | | | | +-------------------------------------- 5 | | | +---------------------------------------- 4 | | +------------------------------------------- 3 | +---------------------------------------------- 2 +------------------------------------------------ 1

1. Status: A=Data varid V=LORAN-C blink or SNR warning V=general warning flag for other navigation systems when a reliable fix is not available

2. Status: A=OK or not used V=LORAN-C cycle lock warning flag

3. Magnitude of XTE(cross-track-eror)

4. Direction to steer,L/R

5. XTE units, nautical miles

6. Status: A=arrival circle entered V=arrival circle not passed

7. Status: A=perpendicular passed at waypoint V=perpendicular not entered

8. Bearing origin to destination, M/T

9. Destination waypoint ID

10. Bearing, present potition to destination, magnetic or true

11. Heading to steer to destination waypoint, magnetic or true

12. Mode indicator(see Note)

13. Checksum

NOTE Positioning system Mode indicator: A = Autonomous mode D = differential mode S = Simulator mode N = Data not valid

A-7

BOD - Bearing, origin to destination

$--BOD,x.x,T,x.x,M,c--c,c--c*hh<CR><LF> | | | | | | | | | | | | | +--------- 5 | | | | | +------------ 4 | | | | +----------------- 3 | | +--+--------------------- 2 +--+--------------------------- 1

1. Bearing, degrees true

2. Bearing, degrees magnetic

3. Destination waypoint ID

4. Origin waypoint ID

5. Checksum

BWC - Bearing and distance to waypoint

$--BWC, hhmmss.ss, llll.ll, a yyyyy.yy, a, x.x, T, x.x, M, x.x, N, c--c, a*hh<CR><LF>

Checksum

Mode indicator (see note 1)

Waypoint ID*

Distance, nautical miles

Bearing, degrees magnetic*

Bearing, degrees true

Waypoint longitude, E/W*

Waypoint latitude, N/S*

UTC of observation*

*: Not used

NOTE 1: Positioning system Mode indicator: A= Autonomous mode D= Differential mode S= Simulator mode N= Data not valid The Mode indicator field shall not be a null field.

A-8

BWR - Bearing, waypoint to range

$--BWR,hhmmss.ss,llll.lll,a,yyyyy.yyy,a,x.x,T,x.x,M,x.x,N,c--c,a*hh<CR><LF> | | | | | | | | | | | | | | | | | | | | | | | | | | | +---- 9 | | | | | | | | | | | | +------ 8 | | | | | | | | | | | +--------- 7 | | | | | | | | | +--+------------- 6 | | | | | | | +--+------------------- 5 | | | | | +--+------------------------- 4 | | | +-----+------------------------------- 3 | +-----+------------------------------------------- 2 +---------------------------------------------------------- 1

1. UTC of observation

2. Waypoint latitude, N/S

3. Waypoint longitude, E/W

4. Bearing, degrees true

5. Bearing, degrees magnetic

6. Distance, nautical miles

7. Waypoint ID

8. Mode indicator(see note)

9. Checksum

NOTE Positioning system Mode indicator: A = Autonomous mode D = differential mode S = Simulator mode N = Data not valid The Mode indicator field shall not be a null field.

BWW - Bearing, waypoint to waypoint

$--BWW,x.x,T,x.x,M,c--c,c--c*hh<CR><LF> | | | | | | | | | | | | | +--------- 5 | | | | | +------------ 4 | | | | +----------------- 3 | | +--+--------------------- 2 +--+--------------------------- 1

1. Bearing, degrees true

2. Bearing, degrees magnetic

3. TO waypoint ID

4. FROM waypoint ID

5. Checksum

A-9

DBT - Depth below transducer

$--DBT,x.x,f,x.x,M,x.x,F*hh<CR><LF> | | | | | | | | | | | | | +--------- 4 | | | | +--+----------- 3 | | +--+----------------- 2 +--+----------------------- 1

1. Water depth, feet

2. Water depth, m

3. Water depth, fathoms

4. Checksum

DPT - Depth

$--DPT,x.x,x.x,x.x*hh<CR><LF> | | | | | | | +----- 4 | | +--------- 3 | +------------ 2 +---------------- 1

1. Water depth relative to trancsducer, in meters

2. Offset from transeducer, in meters(see notes 1 and 2)

3. Maximum range scale in use

4. Checksum

NOTE1 "positive"=distance from transeduser to water-line. "-"=distance from transducer to keel. NOTE2 For IEC applications the offset should always be applied so as to provide depth relative to the keel.

DTM - Datum reference

$--DTM,ccc,a,x.x,a,x.x,a,x.x,ccc*hh<CR><LF> | | | | | | | | | | | | | | | | | +--- 7 | | | | | | | +------ 6 | | | | | | +---------- 5 | | | | +--+------------- 4 | | +--+------------------- 3 | +------------------------- 2 +---------------------------- 1

1. Local datum W84 - WGS84 W72 - WGS72 S85 - SGS85 P90 - PE90 999 - User defined IHO datum code

2. Local datum subdivision code

3. Lat offset, min, N/S

4. Lon offset, min, E/W

5. Altitude offset, m

6. Reference dattum W84 - WGS84 W72 - WGS72 S85 - SGS85 P90 - PE90

7. Checksum

A-10

GGA -Global positioning system fix data

$--GGA,hhmmss.ss,llll.lll,a,yyyyy.yyy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh<CR><LF> | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-- 11 | | | | | | | | | | | | | +---- 10 | | | | | | | | | | | | +--------- 9 | | | | | | | | | | +---+------------ 8 | | | | | | | | +---+------------------ 7 | | | | | | | +------------------------- 6 | | | | | | +---------------------------- 5 | | | | | +------------------------------- 4 | | | +----+--------------------------------- 3 | +---+--------------------------------------------- 2 +------------------------------------------------------------- 1

1. UTC of position

2. Latitude, N/S

3. Longitude, E/W

4. GPS quality indicator (0: No fix, 1: GPS, 2: Differential, 8: Demo mode)

5. Number of satllite in use,00-12, may be different from the number in view

6. Horizontal dilution of precision

7. Antenna altitude above/below mean sealevel, m

8. Geoidal separation, m

9. Age of differential GPS data

10. Differential reference station ID, 0000-1023

11. Checksum

GLL - Geographic position, latitude and longitude

$--GLL,llll.lll,a,yyyyy.yyy,a,hhmmss.ss,A,a*hh<CR><LF> | | | | | | | | | | | | | | | +------- 6 | | | | | | +--------- 5 | | | | | +----------- 4 | | | | +---------------- 3 | | +------+----------------------- 2 +---+----------------------------------- 1

1. Latitude, N/S

2. Longitude, E/W

3. UTC of position

4. Status: A=data valid, V=data invalid

5. Mode indicator(see note)

6. Checksum

NOTE Positioning system Mode indicator: A = Autonomous D = Differential S = Simulator N = Data not valid

The Mode indicator field supplements the Status field. The Status field shall be set to V=invalid for all values of Operating Mode except for A=Autonomous and D=Differential. The positioning system Mode indicator and Status field shall not be null fields.

A-11

MTW- Wind speed and angle

$--MTW,x.x,C*hh<CR><LF> | | | | | +--------- 2 +--+----------- 1

1. Temperature, degrees C

2. Checksum

RMB - Recommended minimum navigation information

$--RMB,A,x.x,a,c--c,c--c,llll.lll,a,yyyyy.yyy,a,x.x,x.x,x.x,A,a*hh<CR><LF> | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +--- 13 | | | | | | | | | | | | | +----- 12 | | | | | | | | | | | | +------- 11 | | | | | | | | | | | +---------- 10 | | | | | | | | | | +-------------- 9 | | | | | | | | | +------------------ 8 | | | | | | | +-----+--------------------- 7 | | | | | +----+--------------------------------- 6 | | | | +--------------------------------------------- 5 | | | +-------------------------------------------------- 4 | | +------------------------------------------------------ 3 | +--------------------------------------------------------- 2 +------------------------------------------------------------ 1

1. Data status: A=data valid, V=navigation receiver warning

2. Cross track error(see note 2) n.miles

3. Direction to steer L/R

4. Origin waypoint ID

5. Destination waypoint ID

6. Destination waypoint latitude,N/S

7. Destination waypoint longitude,E/W

8. Range to destination, n.miles(see note 1)

9. Bearing to destination, degrees true

10. Destination closing velocity, knots

11. Arrival status: A=arrival circle entered or perpendicular passed

12. Mode indicator(see note 3)

13. Checksum

NOTES 1 If range to destination exceeds 999.9 nautical miles, display 999.9. 2 If cross track error exceeds 9.99 nautical miles, display 9.99.

3 Positioning system Mode indicator: A = Autonomous D = Differential S = Simulator N = Data not valid

A-12

RMC- Recommended minimum specific GPS/TRANSIT data

$--RMC,hhmmss.ss,A,llll.lll,a,yyyyy.yyy,a,x.x,x.x,xxxxxx,x.x,a,a*hh<CR><LF> | | | | | | | | | | | | | | | | | | | | | | | | | +--- 10 | | | | | | | | | | | +----- 9 | | | | | | | | | +--+------- 8 | | | | | | | | +--------------- 7 | | | | | | | +--------------------- 6 | | | | | | +------------------------- 5 | | | | +---+---------------------------- 4 | | +---+---------------------------------------- 3 | +--------------------------------------------------- 2 +---------------------------------------------------------- 1

1. UTC of position fix

2. Status: A=data valid, V=navigation receiver warning

3. Latitude, N/S

4. Longitude, E/W

5. Speed over ground, knots

6. Course over ground, degrees true

7. Date: dd/mm/yy

8. magnetic variation, degrees E/W

9. Mode indicator(see note)

10. Checksum

NOTE Positioning system Mode indicator: A = Autonomous D = Differential S = Simulator N = Data not valid

RTE - Routes

$--RTE,x.x,x.x,a,c--c,c--c,.....,c--c*hh<CR><LF>

| | | | | | | | | | | | | +--------- 7 | | | | | +------------ 6 | | | | +----------------------- 5 | | | +---------------------------- 4 | | +-------------------------------- 3 | +----------------------------------- 2 +--------------------------------------- 1

1. Total number of messages being transmitted

2. Message number

3. Message mode: c=complete route, all waypoints w=working route, first listed waypoint is "FROM",

second is "TO" and remaining reset of route

4. Route identifier

5. Waypoint identifier

6. Waypoint "n" identifier

7. Checksum

A-13

TLL - Target latitude and longitude

$--TLL,xx,llll.lll,a,yyyyy.yyy,a,c--c,hhmmss.ss,a,a*hh<CR><LF> | | | | | | | | | | | | | | | | | | | +--------- 8 | | | | | | | | +----------- 7 | | | | | | | +------------- 6 | | | | | | +-------------------- 5 | | | | | +-------------------------- 4 | | | +-----+------------------------------ 3 | +----+------------------------------------------ 2 +----------------------------------------------------- 1

1. Target number 00 - 99

2. Latitude, N/S

3. Longitude, E/W

4. Target name

5. UTC of data

6. Target status(see note)

7. Reference target=R,null otherwise

8. Checksum

NOTE - Target status L = lost,tracked target has beenlost Q = query,target in the process of acquisition T = tracking

VTG - Course over ground and ground speed

$--VTG,x.x,T,x.x,M,x.x,N,x.x,K,a*hh<CR><LF> | | | | | | | | | | | | | | | | | | | +------- 6 | | | | | | | | +--------- 5 | | | | | | +--+----------- 4 | | | | +--+----------------- 3 | | +--+----------------------- 2 +--+----------------------------- 1

1. Course over ground, degrees true

2. Course over ground, degrees magnetic

3. Speed over ground, knots

4. Speed over ground, km/h

5. Mode indicator(see note)

6. Checksum

NOTE Positioning system Mode indicator: A = Autonomous D = Differential S = Simulator N = Data not valid The positioning system Mode indicator field shall not be a null field.

A-14

WCV - Waypoint closure velocity

$--WCV,x.x,N,c--c,a*hh<CR><LF> | | | | | | | | | | | +------- 4 | | | | +--------- 3 | | +--+----------- 2 +--+---------------- 1

1. Velocity component, knots

2. Waypoint identifier

3. Mode indicator(see note)

4. Checksum

NOTE Positioning system Mode indicator: A = Autonomous D = Differential S = Simulator N = Data not valid The positioning system Mode indicator field shall not be a null field.

WNC - Distance, waypoint to waypoint

$--WNC,x.x,N,x.x,K,c--c,c--c*hh<CR><LF> | | | | | | | | | | | | | +--- 5 | | | | | +------- 4 | | | | +------------ 3 | | +--+--------------- 2 +--+--------------------- 1

1. Distance, nautcal miles

2. Distance, km

3. To waypoint identifier

4. FROM waypoint identifier

5. CHecksum

WPL - Waypoint location

$--WPL,llll.lll,a,yyyyy.yyy,a,c--c*hh<CR><LF> | | | | | | | | | | | +--------- 4 | | | | +------------ 3 | | +-----+---------------- 2 +-----+---------------------------- 1

1. Waypoint latitude, N/S

2. Waypoint longitude, E/W

3. Waypoint identifier

4. Checksum

A-15

XTE - Cross-track error, measured

$--XTE,A,A,x.x,a,N,a*hh<CR><LF> | | | | | | | | | | | | | +--------- 7 | | | | | +----------- 6 | | | | +------------- 5 | | | +--------------- 4 | | +------------------ 3 | +--------------------- 2 +----------------------- 1

1. Status: A=data valid V=LORAN-C blink or SNR warning V=general warning flag or other navigation systems when a reliable fix is not available

2. Status: A=data valid V=LORAN-C cycle lock warning flag

3. Magnitude of cross-track error

4. Direction to steer, L/R

5. Units, nautical miles

6. Mode indicator(see note)

7. Checksum

NOTE Positioning system Mode indicator: A = Autonomous mode D = differential mode S = Simulator mode N = Data not valid

ZDA - Time and date

$--ZDA,hhmmss.ss,xx,xx,xxxx,xx,xx*hh<CR><LF> | | | | | | | | | | | | | +--------- 7 | | | | | +----------- 6 | | | | +-------------- 5 | | | +------------------ 4 | | +---------------------- 3 | +------------------------- 2 +--------------------------------- 1

1. UTC

2. Day, 01 to 31(UTC)

3. Month, 01 to 12(UTC)

4. Year(UTC)

5. Local zone hours, 00h to +-13h

6. Local zone minutes, 00 to +59 as local hours

7. Checksum

ZTG - UTC and time to destination waypoint

$--ZTG,hhmmss.ss,hhmmss.ss,c--c*hh<CR><LF> | | | | | | | +--------- 4 | | +------------ 3 | +--------------------- 2 +------------------------------- 1

1. UTC of observation

2. Time-to-go, hh = 00 to 99

3. Destination waypoint ID

4. Checksum

A-16

Time Differences

A-17

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: MIDW A Y 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: :

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.)

094: : Alberta & British Columbia 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-18

Loran C Chains

Chain GRI S1 S2 S3 S4 S5

Central Pacific 4990 11 29 -- -- -Canadian East Coast 5930 11 25 38 -- --

Commando 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 10 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-19

Decca Chains

Chain No.

Chain Chain

code

01 South Baltic 0 A Europe 34 Kanto 8C Japan 0 2 Vestlandet 0E " 35 Shikoku 4C " 0 3 Southwest British 1B " 3 6 Hokuriku 2C " 0 4 Northumbrian 2A " 37 Kita Kyushu 7C " 0 5 Holland 2 E " 38 Namaqualand 4 A Southern Africa 0 6 North British 3B " 39 Cape 6A " 0 7 Lofoten 3 E " 40 Eastern Province 8A " 0 8 3F " 41 South West Africa 9C " 0 9 North Baltic 4 B " 42 Natal 10C " 1 0 North West 4C " 43 Dampier 8E Australia 1 1 Trondelag 4E " 44 Port Headland 4 A " 1 2 English 5B " 45 Anticosti 9C Northern America 1 3 North Bothnian 5F " 46 East Newfoundland 2C " 1 4 Southern Spanish 6A " 47 Cabot Strait 6B " 1 5 North Scottish 6C " 4 8 Nova Scotia 7C " 1 6 Gulf of Finland 6 E " 17 Danish 7 B " 1 8 Irish 7D " 1 9 Finnmark 7 E " 20 French 8 B " 2 1 South Bothnian 8C " 2 2 Hebridean 8E " 2 3 Frisian Islands 9B " 2 4 Helgeland 9E " 2 5 Skagerrak 10B " 26 North Persian Gulf 5C Persian Gulf & India 2 7 South Persian Gulf 1C " 2 8 Bombay 7 B " 2 9 Calcutta 8B " 3 0 Bangladesh 6C " 3 1 Saliyah 2F " 32 Hokkaido 9C Japan 3 3 Tohoku 6C "

Location Chain

no.

Chain Chain

code

Location

A-20

DGPS Reference Station List

yrtnuoCnoitacoL.oNDI

muigleBERAHPEDNETSOO

kramneDEDDOREMMAH1540

NEGAKS2540

KUHSDNAVAALB3540

niatirBtaerGTNIOPS'ENIREHTAC.TS0200

DRAZIL1000

SANYLTNIOP

YALSIFOSNNIHR

SIWELFOTTUB

DAEHHGRUBMUS

SSENELDRIG

DAEHHGUOROBMALF9300

DNALEROFHTRON4500

dnalniFALAKKROP0040

OTOULYTNAM1040

UPMUKOTUO

ALAMUUP

ecnarF

ynamreGWORTSUW1940

sdnalrehteN

dnalecISENAJKYER1000

ELLIVETTAG

LHUMKCE

SENIELABSEL

TERREFPAC

RAEBPAC

ATALLEVER

DNALOGLEH2940

DNALEMA

DNALLOHNAVKEOH

RAGNATGRAJB2000

ATAGAKS3000

yrtnuoCnoitacoL.oNDI

dnalecINFOHRAFUAR4000

RUGOVIPUJD5000

ARAJFSDRAKS6000

dnalerI

aivtaLSLIPSTNEV

yawroNREDREAF1010

aissuRKSYITLAB

niapS

nedewSBBULKORUJB1640

setatSdetinU

aciremAfo

DAEHNEZIM

DNALSIYROT

ARISTU1020

REAVTU3020

YEONIVS4020

NETLAH6020

REAVMOKS2030

NEGNUROT2010

ATSIL4010

ANNILKS7020

GAAVSROT5030

SENLEH7030

EODRAV9030

DNUSLLEB1040

ERRETSINIFOBAC

ATAGOBAC

AREUGIFALACEDATNUP

EDDUSGAKS2640

RAKSO3640

TEDNURGAMLA4640

GRUBOH5640

NELLUK6640

EDDUSNOTROJH7640

IM,HPHSIFETIHW

NM,HTULUD

A-21

yrtnuoCnoitacoL.oNDI

setatSdetinU

aciremAfo

IM,.SIHSIBEEN

IM,WANIGAS

IM,TIORTED

YN,OLAFFUB

JN,DOOWDLIW8001 JN,DOOWDLIW7001

AV,AIRDNAXELA

AM,MAHTAHC

LF,IMAIM

LF,TSEWYEK

RP,NAUJNAS

XT,NOTSEVLAG

IM,WANEEWEKREPPU

IM,TPXIOHCLUES

IM,ELIEUQSERP

IW,EEKUAWLLIM

HN,HTUOMSTROP3000

YN,TPKUATNOM2000

ED,NEPOLNEHEPAC1000

AV,YRNEHEPAC4000

EM,ROBRAHSSAB

JN,KOOHYDNAS8000 CN,NOCAMTROF

CS,NOTSELRAHC

LF,LAREVANACEPAC

LF,YEKTNOMGE

AL,NRUTHSILGNE

XT,SSAPSASNAKRA

yrtnuoCnoitacoL.oNDI

setatSdetinU

aciremAfo

adanaC

AC,TPNOEGIP

AC,TNULBTP

AC,OLLEUGRATP

AC,AMOLTP

KA,TPOTATOP

KA,AKHSIKIN

KA,KAINIHCEPAC

KA,YABDLOC

KA,RATUKAY

KA,SENIAH

KA,SUVATSUG

KA,SIAKROIB

KA,SILEVEL

KA,SIETTENNA

TNIOPSREBRAB

IH,TPOLOPU

IH,TPELOKOK

SM,GRUBSKCIV0080

NT,SIHPMEM

OM,SIUOLTS

EIRTAPTNIOP

RELLEWTROP

ARBMOS

SEREIVIRSIORT

NOZUAL

DNALSIEGDIRTRAP

KA,KOORBNEHCNIHEPAC

UEILEHCIRRUSNAEJTS

A-22

LA,TPELIBOM

AW,SIYEBDIHW6720

AW,TPNOSNIBOR4720

AC,ONICODNEM.C

yrtnuoCnoitacoL.oNDI

adanaC

adumreBDAEHS'DIVAD.TS

lizarBSOCRAMOASEDATNOP

DAEHNRETSEW

ECAREPAC

RAEPSEPAC

SEUQSABXUATROP

.C.B,DNALSIELPIRT9090

.C.B,NOSNIKTATNIOP2090

.C.B,SKCORECAR

A-23

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.

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.

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 5 meters under ideal conditions). DGPS stations are strategically located throughout America (including Hawaii and Alaska), Europe, Canada, Bermuda and Brazil.

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-24

A waypoint in a route.

Magnetic bearing

Bearing relative to magnetic north, with the compass bearing corrected for deviation.

A series of waypoints leading to the ultimate destination.

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

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.

Route

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.

Trip distance

The distance run from starting position.

Trip elapsed time

The amount of time passed since departing a starting point.

A-25

True bearing

Bearing relative to North; compass bearing corrected for magnetic deviation. The GPS receiver can display true or magnetic bearing.

Velocity to destination

The amount of speed in the direction (course) of the desired destination.

Waypoint

A waypoint is a particular location on a voyage whether it be a starting, intermediate or destination waypoint.

A-26

INDEX

Anchor watch alarm 7-2 Apportioning the Memory 2-5 Arrival Alarm 7-1 Automatic testing 9-6

brilliance 1-3

Cancelling Destination 5-5 Centering Cursor Position 2-2 Clearing the Memory 9-1 Cross Track Error Alarm 7-2 contrast 1-3 Course-up 2-1 Connecting Marks 3-2 Course bar tone 8-4 Cursor size 8-5 [CURSOR ON/OFF] 2-1

Data display 1-6, 6-1 DATA 1 out setting 8-6 DATA 2 output setting 8-7 DATA 3 output setting 8-7 Deleting Waypoints 4-5 Deleting Route Waypoints 4-6 Deleting Routes 4-7 Decca LOPs 6-2 Demo Display 6-4 Depth Alarm 7-4display mode 1-3 DGPS Settings 8-10 DGPS error 9-2 Display Orientation 2-1 Displaying LOPs 6-2 Disable satellite 8-1 Display test 9-6

Editing Waypoints 4-4 Entering marks 3-1 entry of comment 4-2 Entering position 8-3 Enlarging characters 8-5 Erasing Track 2-3 Erasing marks 3-1 Erasing Route Waypoints 5-6 Error Messages 9-2 Event Marks 3-3 Event Mark Shape 3-3 external DGPS receiver 8-11

Fix mode 8-1

Geodetic datum 8-1 GPS Menu 8-1 GPS smoothing 8-1 GPS Monitor Displays 8-12 GPS error 9-2 Grid tone 8-4 Great Circle 5-7

Highway display 1-4 Hold icon 2-3

Keyboard test 9-5

Loading lighthouse data 8-8 Loran LOPs 6-2

Index-1

Navigation display 1-5 North-up 2-1

Magnetic variation 2-6 Mark Shape 3-2 mark connection line 3-2 Memory and I/O circuits test 9-5 MOB Mark 3-4

User-defined display 6-1 Unit distance 8-3 Unit of depth 8-3 Unit of water temperature 8-4 Unit of altitude 8-4

W ater Temperature Alarm 7-4 Waypoint mark size 8-5

Plotter 1 display 1-4 Plotter 2 display 1-4 [PLOT ON/OFF]key 2-2 Position offset 8-1 Position-fixing Accuracy 1-2 [POWER]key 1-2

receiver indication 1-2 Registering W aypoints 4-1 Registering Routes 4-5 Replacing Route Waypoints 4-7 Rhumb Line 5-7

Selecting the Display Mode 1-3 Selecting DGPS station 8-10 Self Tests 9-5Shifting the Display 2-2 Setting Destination 5-1 Setting DATA to NMEA 8-7 Ship's Speed Alarm 7-3 Skipping route waypoint 5-5 Speed average 8-1 Stopping Plotting 2-2 Starting Plotting 2-2

XTE alarm 7-2

[ZOOM IN]key 2-1 [ZOOM OUT]key 2-1

Track Plotting Interval 2-4 True bearing 2-6 Trip Alarm 7-3 Turning on the power 1-2 Turning the power off 1-3 Time difference 8-1 Time mark tone 8-4

Index-2

Furuno BACK GP-80 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY INSTRUCTIONS

FOREWORD

A Word to GP-80 Owners

Program No.

Features

SYSTEM OVERVIEW

1. OPERATIONAL OVERVIEW

1.1 Control Description

1.2 Turning On and Off the Power

1.4 Selecting the Display Mode

1.3 Adjusting Display Contrast and Brilliance

1.5 Chart Icons

2. TRACK

2.1 Enlarging/Shrinking the Display

2.3 Shifting the Cursor

2.2 Selecting Display Orientation

2.4 Shifting the Display

2.8 Erasing Track

2.9 Selecting Track Plotting Interval

2.10 Apportioning the Memory

3. MARKS

3.1 Entering/Erasing Marks

3.2 Selecting Mark Shape

3.4 Entering Event Marks

3.6 Entering the MOB Mark

4. NAVIGATION PLANNING

4.1 Registering Waypoints

4.2 Editing Waypoints

4.3 Deleting Waypoints

4.4 Registering Routes

4.5 Deleting Route Waypoints

4.7 Deleting Routes

5. STARTING FOR DESTINATION

5.1 Setting Destination

5.2 Cancelling Destination

6.1 Selecting Data to Display on the Data Display

6.2 Selecting Position Format

6.3 Demo Display

7. ALARMS

7.1 Arrival Alarm, Anchor Watch Alarm

7.4 Trip Alarm

7.5 W ater Temperature Alarm

7.6 Depth Alarm

7.7 DGPS Alarm

8. MENU SETTINGS

8.1 GPS Menu

8.2 Selecting Units of Measurement

8.4 Settings for Connection of Navigator

8.5 Receiving Data from Personal Computer

8.6 DGPS Settings

9. MAINTENANCE & TROUBLESHOOTING

9.1 Clearing the Memory

9.2 Preventative Maintenance

9.3 Error Messages

9.4 Troubleshooting

9.5 Self Tests

10. INTRODUCTION TO GPS

10.1 What is GPS?

10.2 How the GPS Receiver Calculates Position

10.3 Position-fixing Accuracy (HDOP)

Specifications

Digital Interface (IEC 61162-1)

Time Differences

Geodetic Chart LIst

Loran C Chains

Decca Chains

DGPS Reference Station List

Glossary

INDEX