Furuno GP-1610CF User Manual

(
C
9-52, Ashihara-cho, Nishinomiya, Japan
Telephone: 0798-65-2111 Telefax: 0798-65-4200
ll rights reserved.
Printed in Japan
Your Local Agent/Dealer
FIRST EDITION : MAR. 1997 G : MAR. 7, 2001
PUB. No. OME-43861
DAMI)
GP-1610CF

SAFETY INSTRUCTIONS

Use the proper fuse.
Use of a wrong fuse can result in fire or permanent equipment damage.
GPS position and velocity accuracies are controlled by the U.S. Department of Defense. Position may be degraded up to 100 meters.
Do not use the equipment for other than its intended purpose.
Personal injury can result if the equipment is used as a chair or stepping stool, for example.
Do not place objects on the top of the equipment.
The equipment can overheat or personal injury can result if the object falls.
CAUTION
Safety Instructions for the Operator
WARNING
Do not open the equipment.
Hazardous voltage which can cause electrical shock, burn or serious injury exists inside the equipment. Only qualified personnel should work inside the equipment.
Do not disassemble or modify the equipment.
Fire, electrical shock or serious injury can result.
Turn off the power immediately if water leaks into the equipment or the equip­ment is emitting smoke or fire.
Continued use of the equipment can cause fire or electrical shock.
Do not place liquid-filled containers on the top of the equipment.
Fire or electrical shock can result if a liquid spills into the equipment.
Do not operate the equipment with wet hands.
Electrical shock can result.
Keep heater away from equipment.
Heat can alter equipment shape and melt the power cord, which can cause fire or electrical shock.
About the TFT LCD
The TFT LCD is constructed using the latest LCD techniques, and displays
99.99% of its pixels. The remaining 0.01% of the pixels may drop out or blink, how­ever this is not an indication of malfunc­tion.
Safety Instructions for the Installer
WARNING
Do not work inside the equipment unless totally familiar with electrical circuits.
Hazardous voltage which can shock, burn or cause serious injury exists inside the equip­ment.
Turn off the power at the mains switchboard before beginning the installation. Post a sign near the switch to indicate it should not be turned on while the equip­ment is being installed.
Fire, electrical shock or serious injury can result if the power is left on or is applied while the equipment is being installed.
CAUTION
Ground the equipment to prevent electrical shock and mutual interference.
Confirm that the power supply voltage is compatible with the voltage rating of the equipment.
Connection to the wrong power supply can cause fire or equipment damage. The voltage rating appears on the label at the rear of the display unit.
Use the correct fuse.
Use of a wrong fuse can cause fire or equipment damage.
Keep the following compass safe distance.
Standard Steering Display Unit 0.7 m 0.6 m

TABLE OF CONTENTS BY SUBJECT

FOREWORD
A Word to GP-1610CF Owners.................iv
Features....................................................... v
System Configuration................................vi
INSTALLATION
1.1 Equipment Lists............................. 1-1
1.2 Installation of Standard
Equipment ..................................... 1-3
1.3 Installation of Transducers .......... 1-10
1.4 Installation of Optional
Sensors ........................................ 1-19
1.5 Connection of Optional
Equipment ................................... 1-21
1.6 Initial Settings ............................. 1-24
OPERATIONAL OVERVIEW
2.1 Control Description ....................... 2-1
2.2 Inserting Chart Cards .................... 2-2
2.3 Turning On/Off the Power............. 2-2
2.4 Adjusting Tone and Brilliance....... 2-3
2.5 Plotter Displays ............................. 2-3
2.6 Sounder Displays........................... 2-5
2.7 Basic Menu Operation................... 2-7
VIDEO SOUNDER OPERATION
3.1 Principle of Operation ................... 3-1
3.2 Automatic Sounder Operation....... 3-2
3.3 Manual Sounder Operation ........... 3-2
3.4 Suppressing Low Level Noise....... 3-3
3.5 Selecting Picture Advance
Speed ............................................. 3-4
3.6 Suppressing Interference ............... 3-4
3.7 Erasing Weak Echoes .................... 3-4
3.8 Changing Zoom Magnification
Factor............................................. 3-5
3.9 Selecting Hue
(color arrangement) ....................... 3-5
3.10 Measuring Depth ........................... 3-5
3.11 Knowing Depth Change by
Audible Chime .............................. 3-5
3.12 Selecting Unit of Depth
Measurement ................................. 3-6
3.13 Offsetting the Depth Readout........ 3-6
3.14 Displaying the Water Temperature
Graph............................................. 3-6
3.15 Selecting Unit of Water
Temperature Measurement ............ 3-7
3.16 Offsetting Water T emperature
Readout.......................................... 3-7
3.17 Fish Alarm ..................................... 3-7
3.18 Bottom Alarm ................................ 3-8
3.19 Water Temperature Alarm ............. 3-8
3.20 Turning On/Off the Expansion
Range Marker ................................ 3-8
3.21 Receiver Sensitivity (gain)
Adjustment .................................... 3-9
3.22 Selecting Bottom-Lock
Expansion Width ........................... 3-9
3.23 Stopping Transmission .................. 3-9
3.24 Interpreting the Display............... 3-10
GPS, CHART OVERVIEW
4.1 Principle of GPS ............................ 4-1
4.2 Presentation Mode......................... 4-3
4.3 Shifting the Cursor ........................ 4-3
4.4 Selecting Screen Center by
Cursor ............................................ 4-4
4.5 Shifting the Display....................... 4-4
4.6 Centering Position ......................... 4-4
4.7 Changing Chart Scale/Range ........ 4-4
4.8 Chart Cards.................................... 4-4
TRACK
5.1 Stopping/Restarting Plotting of
Track.............................................. 5-1
5.2 Changing Track Color ................... 5-1
5.3 Erasing All Track........................... 5-1
5.4 Changing Track Plotting
Interval .......................................... 5-2
5.5 Smoothing Track ........................... 5-2
MARKS
6.1 Entering Marks .............................. 6-1
6.2 Entering Event Marks.................... 6-1
6.3 Erasing Individual Marks .............. 6-2
6.4 Changing Mark Attributes............. 6-2
6.5 Entering the MOB Mark ............... 6-3
6.6 Erasing All Marks.......................... 6-3
6.7 Radar Target Mark......................... 6-4
i
WAYPOINTS, ROUTES
CUSTOMIZING THE DISPLAY
7.1 Entering Waypoints ....................... 7-1
7.2 Erasing Individual Waypoints ....... 7-3
7.3 Changing Waypoint Position......... 7-3
7.4 Changing Waypoint Mark Size ..... 7-4
7.5 Entering Routes ............................. 7-4
7.6 Editing Routes ............................... 7-5
7.7 Erasing Routes............................... 7-5
SETTING DESTINATION
8.1 Setting Destination ........................ 8-1
8.2 Skipping Route Waypoints ............ 8-3
8.3 Cancelling Destination .................. 8-3
PLOTTER-RELA TED ALARMS
9.1 Arrival/Anchor Watch Alarm ........ 9-1
9.2 XTE (Cross Track Error) Alarm.... 9-2
9.3 Speed Alarm .................................. 9-2
9.4 Trip Alarm ..................................... 9-2
POSITION-RELA TED OPERA TIONS
10.1 Displaying Position in LOPs ....... 10-1
10.2 Offsetting GPS Position .............. 10-1
10.3 Selecting Navaid ......................... 10-2
10.4 Displaying True or Magnetic
Bearings....................................... 10-2
10.5 Magnetic Variation ...................... 10-2
10.6 Offsetting Chart Position............. 10-3
13.1 Plotter Display Marker
Attributes..................................... 13-1
13.2 Chart Attributes ........................... 13-1
13.3 Unit of Distance Measurement.... 13-2
13.4 Chart Range or Scale Indication.. 13-2
MAINTENANCE & TROUBLESHOOTING
14.1 Maintenance ................................ 14-1
14.2 Replacement of Fuse, Battery ..... 14-1
14.3 Simple Troubleshooting .............. 14-2
14.4 Error Messages ............................ 14-3
14.5 Diagnostic Tests .......................... 14-4
14.6 GPS Monitor Display .................. 14-5
14.7 Demonstration Display................ 14-6
14.8 Memory Card Operations
(for technicians)........................... 14-6
14.9 Clearing the Memory .................. 14-7
APPENDIX
Specifications..........................................A-1
World Time Standards ............................A-2
Geodetic Chart List.................................A-3
Icons .......................................................A-4
Glossary ..................................................A-5
Menu Tree...............................................A-9
Decca Chains ........................................A-12
Packing List ..........................................A-13
GPS OPERATIONS
11.1 GPS Setup Menu ..........................11-1
11.2 Speed Averaging...........................1 1-2
OPTIONAL EQUIPMENT SETUP
12.1 Selecting Sensors......................... 12-1
12.2 Selecting Autopilot, Remote
Display ........................................ 12-1
12.3 Setting up DGPS Beacon
Receiver....................................... 12-1
DRA WINGS
Antenna Unit...........................................D-1
Display Unit............................................D-2
SCHEMATIC DIAGRAMS
GPS Plotter Interconnection Diagram .... S-1
GPS Plotter Schematic Diagram............. S-2
GPS Plotter Schematic Diagram............. S-3
INDEX
ii

TABLE OF CONTENTS BY DISPLAY ITEM

Waypoint (Page 7-1)
Chart (Page 4-4)
Grid (Page 13-1)
Marks (Page 6-1)
Cross-track error alarm range (Page 9-2)
Icons (Page A-4)
PLOTTER DISPLAY (Page 2-3)
SOUNDER DISPLAY (Page 2-5)
01
100
150
50k
L
H
L
200
CSE 350.0° SPD 16.8kt 2D DEP 110 m
TMP 16.0°C 13:42
POS 34°26.345’N 135°41.232’E
50
0
Course bar (Page 13-1) Arrival alarm range (Page 9-2)
Flag (destination) (Page 8-1) Course to destination (Page 8-1)
Fish school (Page 3-10)
Own ship mark (Page 5-1) Bottom (Page 3-10)
Track (Page 5-1) Sounder frequency (Page 2-5)
Position-fixing mode (Page 2-2) Time (Page 11-2) Position (Page 4-2)
CURS key alternates these displays.
BRG+ 232.0° RNG+ 0.00nm 2D DEP 110 m
TMP 16.0°C 13:42
+ 34°43.801’N 135°21.163’E
Cursor position in latitude and longitude (Page 4-3)
iii

FOREWORD

A W ord to GP-1610CF Owners
Congratulations on your choice of the FURUNO GP-1610CF COLOR GPS PLOTTER SOUNDER. We 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.
This equipment is designed and constructed to meet the rigorous demands of the marine environment. However, no machine can perform its intended function unless installed, operated and main­tained properly. Please carefully read and follow the recommended procedures for installation, operation and maintenance.
W e would appreciate hearing from you, the end-user , about whether we are achieving our purposes.
Thank you for considering and purchasing FURUNO equipment.
iv
Features
The GP-1610CF is a totally integrated GPS receiver, color video plotter and color video sounder . It mainly consists of a display unit and a GPS antenna.
Navigation information is displayed on a bright 5.6-inch color TFT LCD. On-screen information shown are position, range and bear­ing to cursor position, range, bearing, ETA and TTG to waypoint, etc.
A high sensitivity receiver tracks up to eight satellites simulta­neously. An 8-state Kalman filter ensures optimum accuracy in determination of vessel position, course and speed.
The main features of the GP-1610CF are
Comprehensive navigation data displays.
Bright 5.6-inch color LCD with temperature compensated tone and brilliance control.
Automatic coastline chart loading.
Position display in latitude and longitude, Loran C LOPs or Decca LOPs.
Outputs steering information to FURUNO autopilots (FAP-50/ 55/300/330).
Improved position accuracy with connection of DGPS beacon receiver (option).
FURUNO and NAVIONICS chart cards.
Memory capacity: 2,000 points of track, 100 marks, 100 event marks, 200 waypoints and 20 routes.
Alarms: Arrival, Anchor Watch, Cross-track Error, Depth, Fish, Speed, Trip, and Water T emperature.
Man overboard feature records latitude and longitude coordi­nates at time of man overboard and provides continuous up­dates of range and bearing to that point.
"Highway" display provides graphic presentation of ship's track and is useful for monitoring cross track error.
Automatic or manual video sounder operation.
v
System Configuration
C
The GP-1610CF mainly consists of a display unit and a GPS an­tenna. A dual frequency transducer is optionally available. The chart card drive in the display unit loads electronic charts. External equip­ment which can be connected include water temperature and speed sensors, autopilot, and DGPS beacon receiver.
ANTENNA UNIT
Receives signal from GPS satellite.
DISPLAY UNIT
Ship’s position is calculated in longitude and latitude from signal received from the an­tenna unit and displayed on the screen.
Temp. sensor (option)
Ship’s mains
10.2—31.2 VD
External equipment (Autopilot, etc.)
DGPS beacon receiver (option)
vi
Transducer (option)

INSTALLATION

1.1 Equipment Lists

Standard supply
.oNemaNepyT.oNedoCytQskrameR
1tinUyalpsiD 2tinUannetnA
3
4straPerapS
noitallatsnI
slairetaM
E-FC0161-PG
610-APG
00300-68PC830-140-000tes1
00300-68PS
046-493-400tes1
1 1
Optional equipment
.oNemaNepyT.oNedoCskrameR
rof,m03
00710-02PC011-273-400
1
2
annetnA
teselbac
01710-02PC021-273-400
elgna-thgiR
esabannetna
033AQ-31.oN932-308-000
elbacannetna
noisnetxe
rof,m05
elbacannetna
noisnetxe
3
4
5
6rosnesTS
7
elgna-L
esabannetna
esabannetnA
liarrof
gnitnuom
tnuomtsaM
erutxif
erutarepmeT
rosnes
11110-02PC227-040-000
BSM20-TS689-731-000epytlluh-urhT
BSP20-TS789-731-000
BTM20-T620-040-000
BSM30-T720-040-000
013AQ-31.oN042-308-000
gnitnuomroF
tinuannetna
0615CR-31.oN411-608-000
,elbacm8htiW
tnuommosnart
,elbacm8htiW
epytlluh-urht
1-1
Optional equipment (con't)
.oNemaNepyT.oNedoCskrameR
DSP5-025
DWP5-025621-510-000
8recudsnarT
DSM5-025721-510-000
lauD
9
01.yssaelbaC
11
ycneuqerf
recudsnart
lluhrennI
Stik
DSM-TS425422-510-000 DWP-TS025821-510-000
0-1910S22895-208-000
521-510-000
m8htiW
mosnart,elbac
tnuom
elbacm8htiW foorpretawdna
rotcennoc
001-1100FPS6A-JM633-231-000 050-1100FPS6A-JM442-231-000 001-2100FPS6A-JM718-331-000 050-2100FPS6A-JM424-431-000
050-3000FPS7A-JM10-037-631-000
m01,P4-P6
m5,P4-P6
m01,P6-P6 m5,P6-P6 m5,P6-P7
SPGDrof
21
retrevnoC
tesrotcennoc
01300-68PC082-593-400
1-2

1.2 Installation of Standard Equipment

Installing the display unit
Mounting considerations
The display unit can be installed on a tabletop or on the overhead. When selecting a mounting location for the display unit keep the
following in mind:
• Keep the display unit out of direct sunlight.
• The temperature and humidity should be moderate and stable.
• Locate the unit away from exhaust pipes and vents.
• The mounting location should be well ventilated.
• Mount the unit where shock and vibration are minimal.
• Keep the unit away electromagnetic field generating equipment such as motor, generator.
Cover
• For maintenance and checking purposes, leave sufficient space at the sides and rear of the unit and leave slack in cables.
• A gyrocompass will be affected if placed too close to the dis­play unit. Observe the following compass safe distances to pre­vent disturbance to the gyrocompass:
Standard compass: 0.7 meters Steering compass: 0.6 meters
Tabletop Overhead
Figure 1-1 Display unit mounting methods
1-3
Tabletop mounting
y
Dumm cover
Cutting size for flushmount
Figure 1-2 Display unit mounting methods
Installing the antenna unit
Mounting considerations
When selecting a mounting location for the antenna unit, keep in mind the following points:
• Select a location out of the radar beam. The radar beam will obstruct or prevent reception of the GPS satellite signal.
• Be sure the location offers a clean line-of-sight to satellite. Ob­jects within line-of-sight to a satellite, for example, a mast or funnel, block reception and cause prolonged acquiring time or interruption of position fix.
• Mount the unit as high as possible. This will keep the unit free of water spray, which can interrupt reception of GPS satellite signal if frozen.
• Separate the unit well away from the antenna of radio equip­ment.
1-4
Figure 1-3 Typical antenna unit mounting locations
Antenna unit mounting procedure
You will need a medium size slotted-head screwdriver and vinyl tape.
The standard antenna is usually fastened to a length of pipe and fastened to a mast. (A mast mount fixture is optionally available for this.) The threaded antenna base accepts a standard antenna mount with a 1"-14 straight thread. Mount the antenna on a length of pipe with a 1"-14 threaded end.
1. Pass the antenna cable through the pipe. Fasten the connector
on the cable to the antenna.
Antenna
Pipe
Antenna cable
Figure 1-4 Passing antenna cable through pipe
1-5
2. Screw the pipe into the antenna. DO NOT USE TOOLS TO FASTEN THE ANTENNA TO ITS MOUNTING; ONLY HAND TIGHTEN.
Pipe
Figure 1-5 Fastening pipe to antenna
3. Tape the junction between the pipe and antenna unit with vinyl tape.
Taping
Figure 1-6 Taping the antenna
4. Attach the mounting fixture to the mast and set the pipe with antenna to the mounting fixture.
1-6
Mounting fixture (note direction)
Mast
Figure 1-7 Attaching antenna to mounting fixture
5. Tape the antenna unit, mounting fixture and mast with vinyl tape.
Vinyl tape
Figure 1-8 Securing antenna to mast with vinyl tape
6. Attach a clamp to the antenna unit and tighten. Leaving some slack in the antenna cable as shown, fix it with vinyl tape.
Slotted-head screwdriver
Clamp
Leave slack in cable.
Vinyl tape
Figure 1-9 Fixing the antenna cable with vinyl tape
1-7
Wiring
All wiring are terminated at the rear of the display unit.
Power cable
Connect the power cable to the power connector . Connect the leads to the battery (12 or 24 VDC); white to plus(+) terminal and black to minus(-) terminal.
Cable connector
Power cable w/fuse (3A)
Lead wire
Black
BATTERY
White
Figure 1-10 Connecting the power cable to the battery
Antenna unit
Connect the antenna unit cable to the GPS ANT connector.
Transducer
Connect the transducer cable to the XDR connector.
Ground
1-8
The display unit contains several
CAUTION
CPUs. While they are operating, they radiate noise, which can interfere
Ground the equipment to prevent electrical shock and mutual interference.
with radio equip­ment. Ground the unit to prevent interference. The grounding wire should be 1.25 sq or larger and as short as possible. Connect the grounding wire to ship's ground by silver-alloy brazing. On a fiberglass boat, it is best to install a ground plate that measures about 20 cm by 30 cm on the outside of the hull bottom to provide a ground point. If this is not practical, the engine block can be used.
Black
ANTENNA UNIT
DISPLAY UNIT
Earth terminal
Earth
DPGS beacon receiver
Ext. equip.
White
Shield
TRANSDUCER
Figure 1-11 Display unit, rear view
1-9

1.3 Installation of Transducers

Installing the inside-hull mount transducer
Necessary tools
You will need the following tools:
• Sandpaper (#100)
• Silicone sealant
• Silicone grease
Remarks on installation
• Do the installation with the boat hauled out of the water.
• Turn off the engine while installing the equipment.
• Install the transducer in the engine room.
Selecting the mounting location
Keep the following points in mind when selecting a mounting lo­cation:
• The mounting location should be where the hull is of single­hull thickness and is void of air or flotation materials other than solid fiberglass between the transducer face and the water.
• Do not place the transducer over hull struts or ribes which run under the hull.
• Avoid a location where the rising angle of the hull exceeds 15°, to minimize the effect of the boat’s rolling.
• You will finalize the mounting location through some trial and error. The procedure for this is shown later.
15cm 15cm
1/2
1/3
Mounting location for transducer
Center line
50cm
50cm
Figure 1-12 Inside-hull transducer mounting location
1-10
Attaching the transducer
1. Clean the transducer face to remove any foreign material.
Lightly roughen the transducer face with #100 sandpaper . Also, roughen the inside of the hull where the transducer is to be mounted.
2. Warm the silicone sealant to 40°C before usage to soften it.
Coat the transducer face and mounting location with silicone sealant.
Transducer face
Silicone sealant
Figure 1-13 Coating the transducer face with silicone sealant
3. Press the transducer firmly down on the hull and gently twist it
back and forth to remove any air which may be trapped in the silicone sealant.
Squeeze out air bubbles.
Hull
Silicone sealant
Figure 1-14 Attaching transducer to hull with silicone sealant
1-11
Observing the picture
1. Press the POWER key to turn on the display unit.
2. Press the PLTR key.
3. Press the AUTO key.
AUTO MODE
Cruise
Fish Manual
Figure 1-15 Auto mode selection screen
4. Press twice to select Manual.
AUTO MODE
Cruise
Fish Manual
Low High
Gain
Range 5 10 20 40 80 160 300m Shift 0m
Figure 1-16 Auto mode adjustment screen
5. Confirm that Gain is set at 5 (midpoint).
6. Press once to select Range.
7. Press t four times to select 10.
8. Note the depth to the seabed.
Reddish
brown
2
Color bar
Reddish
brown
Red
Depth
3.9
CSE 180.0° SPD 16.8kt
DEP 3.9 m TMP 16.0 °C
POS 34° 26.245' N 135° 41.232' E
4
6
8
10
2D
09:00
Zero line
Bottom
Depth scale
1-12
Figure 1-17 Video sounder picture
If the bottom is displayed in red and the light-blue color appears the mounting location is suitable. You can leave the transducer in position.
If the bottom is not displayed in reddish brown, the mounting location is unsuitable. Relocate the transducer and do the following.
1. Press the POWER key to turn off the power.
2. Gently dismount the transducer with piece of wood.
3. Do steps 1 through 5 in the previous procedure. Repeat until a suitable location is found.
Final preparation
Support the transducer with a piece of wood to keep it in place wile it is drying. Let the transducer dry 24–72 hours.
1-13
Installing the thru-hull mount transducer
Transducer mounting location
This type of mounting provides the best performance of all, since the transducer protrudes from the hull and the effect of air bubbles and turbulence neat the hull skin is reduced. When the boat has a keel, the transducer should be at least 30 cm away from it. Typical through hull mountings are shown in the figure on the next page.
The performance of the video sounder is directly related to the mounting location of the transducer, especially for high-speed cruis­ing. The installation should be planned in advance, keeping the standard cable length (8 m) and the following factors in mind:
• Air bubbles and turbulence caused by movement of the boat seriously degrade the sounding capability of the transducer . The transducer should, therefore, be located in a position where wa­ter flow is the smoothest. Noise from the propellers also ad­versely affects performance and the transducer should not be mounted nearby. The lifting strakes are notorious for creating acoustic noise, and these must be avoided by keeping the trans­ducer inboard of them.
• The transducer must always remain submerged, even when the boat is rolling, pitching or up on a plane at high speed.
• A practical choice would be somewhere between 1/3 and 1/2 of the boat's length from the stern. For planing hulls, a practical location is generally rather far astern, so that the transducer is always in water regardless of the planing attitude.
Transducer outline drawings
30
120
22
All dimensions in millimeters
120
28
24
1-14
68
68 87
520-5PSD (option) 520-5MSD (option)
Figure 1-18 Transducer outline drawings
Ship's bow
Acceptable transducer mounting locations
Deep-V hull
• Position 1/2 to 1/3 length of the hull from stern
• 15 to 30 cm off center line (inside first lifting strakes).
Figure 1-19 Transducer mounting location on deep-V hull
High speed V-planing hull
• Within the wetted bottom area
• Deadrise angle within 15°
Figure 1-20 Transducer mounting location on high speed V-planing hull
Typical through-hull mount transducer installations
Fairing block
Deep-V Hull Flat Hull
Flat washer Rubber washer
Hull bottom
Hull bottom
Figure 1-21 Typical through-hull mount transducer installations
1-15
Procedure for installing the thru-hull mount transducer
1. With the boat hauled out of the water, mark the location se­lected for mounting the transducer on the bottom of the hull.
2. If the hull is not level within 15° in any direction, fairing blocks made out of teak should be used between the transducer and hull, both inside and outside, to keep the transducer face paral­lel with the water line. Fabricate the fairing block as shown below and make the entire surface as smooth as possible to provide an undisturbed flow of water around the transducer. The fairing block should be smaller than the transducer itself to provide a channel to divert turbulent water around the sides of the transducer rather than over its face.
Hole for stuffing tube
Upper half
Lower half
Saw along slope of hull.
BOW
Figure 1-22 Construction of fairing block
3. Drill a hole just large enough to pass the threaded stuffing tube of the transducer through the hull, making sure it is drilled ver­tically .
4. Apply a sufficient amount of high quality caulking compound to the top surface of the transducer, around the threads of the stuffing tube and inside the mounting hole (and fairing blocks if used) to ensure watertight mounting.
5. Mount the transducer and fairing blocks and tighten the lock­ing nuts. Be sure that the transducer is properly oriented and its working face is parallel to the waterline.
1-16
Note: Do not over-stress the stuffing tube and locking nuts through excessive tightening, since the wood block will swell when the boat is placed in the water . It is suggested that the nut be tightened lightly at installation and retightened several days after the boat has been launched.
Installing the transom mount transducer
This type of mounting is very commonly employed, usually on relatively small I/O or outboard boats. Do not use this method on an inboard motor boat because turbulence is created by the propel­ler ahead of the transducer.
There are two methods of installation: flush with hull (for flat hulls) and projecting from hull (for deep V-hulls).
D
D
>50 cm
Flat Hull Deep V-hull
Figure 1-23 Transom mount transducer mounting locations
Installing the transom mount transducer flush with hull (for flat hulls)
A suitable mounting location is at least 50 cm away from the en­gine and where the water flow is smooth.
1. Drill four pilot holes in the mounting location.
2. Attach the transducer to the bracket with tapping screws (sup­plied).
3. Adjust the transducer position so the transducer faces right to the seabed.
Note: If necessary, to improve water flow and minimize air bubbles staying on the transducer face, incline the transducer about 5° at the rear. This may require a certain amount of experimentation for fine tuning at high cruising speeds.
4. Fill the gap between the wedge front of the transducer and tran­som with epoxy material to eliminate any air spaces.
1-17
M5 x 20
M5 x 20
5°
Tape
No. 1
M5 x 14
Figure 1-24 Transom mount transducer, mounting flush with hull
Installing the transom mount transducer projecting from hull (for deep-V hulls)
This method is employed on deep-V hulls and provides good per­formance because the effects of air bubbles are minimal. Install the transducer parallel with water surface; not flush with hull. If the boat is placed on a trailer care must be taken not to damage the transducer when the boat is hauled out of the water and put on the trailer .
M5 x 20
M5 x 20
1-18
No. 2
M5 x 14
Figure 1-25 Transom mount transducer, projecting from hull
Transducer preparation
Before putting the boat in water, wipe the face of the transducer thoroughly with a detergent liquid soap. This will lessen the time necessary for the transducer to have good contact with the water. Otherwise the time required for complete "saturation" will be lengthened and performance will be reduced.
Do not paint the transducer. Performance will be affected.

1.4 Installation of Optional Sensors

Through-hull mount water temperature/speed sensor (ST-02MSB, ST-02PSB)
Select a suitable mounting location considering the following:
• Select a mid-boat flat position. The sensor does not have to be installed perfectly perpendicular. The sensor must not be dam­aged in dry-docking operation.
• Select a place apart from equipment generating heat.
• Select a place in forward direction viewing from the drain hole for cooling water.
• Select a place free from vibration.
1. Dry-dock the boat.
2. Make a hole of approx. 51 mm diameter.
3. Unfasten locknut and remove the sensor section.
4. Apply high grade sealant to the flange of the sensor.
5. Pass the sensor casing through the hole.
6. Face the notch on the sensor toward boat's bow and tighten the flange.
7. Set the sensor section to the sensor casing and tighten the lock­nut.
8. Launch the boat and check for water leakage around the sen­sor.
Locknut
Face "notch" toward bow.
Flange nut
51
123
Coat with silicone sealant.
Brim
ø77
Figure 1-26 Water temperature/speed sensor ST-02MSB, ST02PSB
1-19
Transom mount water temperature sensor T-02MTB
• Fix the cable at a convenient location with cable clamp.
• When the cable is led in through the transom board, make a hole of approx. 17 mm diameter to pass the connector. After passing the cable, fill the hole with a sealing compound.
D
D>50 cm
M5 x 20
Mount sensor flush with hull bottom.
Figure 1-27 How to install transom mount water temperature sensor T-02MTB
Thru-hull mount water temperature sensor T-03MSB
• Select a mid-boat flat position. The sensor does not have to be installed perfectly perpendicular. The sensor must not be dam­aged in dry-docking operation.
• Select a place apart from equipment generating heat.
• Select a place in forward direction viewing from the drain hole for cooling water.
• Select a place free from vibration.
1. Dry-dock the boat.
2. Drill a hole of 25 mm in the hull.
3. Pass the sensor cable through the hull.
1-20
4. Pass the rubber washer, washer and locknut onto the cable in that order.
5. Apply high grade sealant to the sensor flange, sensor and lock­nut. Tighten the locknut. Do not overtighten it.
6. Launch the boat and check for water leakage around the sen­sor.
SENSOR HOLDER
Nut
Locknut Washer Rubber washer
Coat with silicone sealant.
HOLDER GUIDE
Thickness of wood plate should be within 25 mm.
Figure 1-28 Thru-hull mount water temperature sensor T-03MSB

1.5 Connection of Optional Equipment

Connecting a DGPS beacon receiver
Most any DGPS beacon receiver having RS-422 or RS-232C out­put level can be connected. (Connection of the FURUNO FR-80 requires no modification.) For RS-232C, a level converter (local supply) is required. Connect the receiver to the DGPS connector at the rear of the display unit.
GP-1610CF
RS-422
DGPS RD-A
RD-B
GND
MJ-A7SPF003-050 (option)
3 4 5 6 7
YEL GRN
GR-80
2 1 7 5 6
TD-A TD-B GND RX-H RX-C
DATA
RS-422
Current Loop
Note 1
Current Loop
Figure 1-29 Connection of the FURUNO GR-80 DGPS receiver
NMEA TXD-H
TXD-C
1 2 3 4 5 6
WHT BLK
Note 1:
This cable is required for Auto L/L mode of GR-80. It is not required for Manual mode.
1-21
GP-1610CF
DGPS RD-A
RD-B
GND
BEACON RCVR
3 4 5 6 7
YEL GRN
BLU
TD-A TD-B
GND
F.G
RS-422
Note 2
Note 2:
The signal names depend on equipment connected. If data is not input to the GP-1610CF, change connection between TD-A and TD-B.
Figure 1-30 Connection of other DGPS beacon receivers
Connecting a sensor
Connect the water temperature sensor or water temperature/speed sensor to the XDR connector with the converter connector kit (op­tion). This kit contains only a connector; a cable is required.
MJ-A6SRMD
SHIELD TEMP TEMP0V NC NC NC
MJ-A10SRMD
NC NC NC NC NC NC NC XDR+ XDR SHIELD XDR-
1 2 3 4 5 6
1 2 3 4 5 6 7 8 9
10
MJ-A10SPF
1
NC
4
TEMP
7
TEMP0V
3
NC
2
NC
5
NC
6
NC
8
XDR+
9
XDR SHIELD
10
XDR-
1-22
Figure 1-31 Wiring of converter connector for water temperature sensor
MJ-A6SRMD
SHIELD TEMP TEMP0V/SPD0V SPD +V NC
MJ-A10SRMD
NC NC NC NC NC NC NC XDR+ XDR SHIELD XDR-
1 2 3 4 5 6
1 2 3 4 5 6 7 8 9
10
MJ-A10SPF
4 7 3 1 2 5 6 8 9
10
Figure 1-32 Wiring of converter connector for water temperature/speed sensor
TEMP TEMP0V SPD0V/ SHIELD SPD +12.7V NC NC XDR+ XDR SHIELD XDR-
To connector at rear of display unit
MJ-A6SRMD
Tape connector with self-vulcanizing tape and then vinyl tape to waterproof connector. Bind tape end with cable tie.
MJ-A10SPF
MJ-A10SRMD
Water temp., water temp/speed
Transducer connector
sensor connector
Figure 1-33 Connection of transducer, water temperature sensor, water temperature/speed sensor
1-23

1.6 Initial Settings

Sensor connection
This section should be done with the boat in water.
1. Turn on the power and press the MENU key.
2. Press the [0] key.
3. Press the [5] key to select SENSOR SETUP.
SENSOR SETUP
SPD SENSOR
TEMP SENSOR SPD CALIB TEMP CALIB DEPTH CALIB
: Cursor : +/­ESC : Esc
Figure 1-34 Sensor setup menu
STW SOG OWN
-00%(-50~+50) +000°C +0.0m
NMEA
4. Select source of ship's speed; STW (Speed-Through-Water): local sensor, SOG (Speed-Over-Ground): GPS.
5. Press twice to select SPD CALIB.
6. If speed reading is higher or lower than actual speed you may apply an offset to compensate for this. Enter offset with plus or
minus sign. The
key alternately displays plus and minus.
7. If a water temperature sensor is installed, press to select TEMP SENSOR.
8. Press t to select OWN. (NMEA is for water temperature data from external source.)
9. Press twice to select TEMP CALIB.
10. If temperature reading is higher or lower than actual tempera­ture you may apply an offset to compensate for this. Enter off-
set with plus or minus sign. The
key alternately displays
plus and minus.
11. Press to select DEPTH CALIB.
12. Enter ship's draft, if applicable. Normally, depth is measured from the transducer so enter positive figure.
1-24
13. Press the MENU key.
Autopilot or remote display connection
1. Press the MENU key.
2. Press the [0] key.
3. Press the [6] key.
NMEA SETUP
FORMAT
EXT DEVICE
: Cursor ESC: Esc
183V1.5
REM
183V2.0 PILOT
Figure 1-35 NMEA setup menu
4. Press t or s to select data format of connected external equip­ment. If you are not sure, try both and select the one which successfully receives data.
5. Press to select EXT DEVICE.
6. Press t or s to select type of external equipment (input and output data); REMote display or AutoPILOT.
Table 1-1 Output data
tnempiuqEreklaTsecnetneS
tolipotuAPG,GTV,LLG,DOB,BPA,MAA
ETX
etomeR
PGTPD,)5.1noisrev(TBD,RWB
yalpsid
Table 1-2 Input data
reklaTsecnetneS
llaro,ED,CL
sreklat
GTV
enoNLLT,WTM
7. Press the MENU key.
,BMR,WTM,LLG,)0.2noisrev(
ADZ,GTV,CMR
,LLT,AMR,CMR,AGG,LLG
1-25
DGPS beacon receiver connection
1. Press the MENU key.
2. Press the [0] key.
3. Press the [8] key.
DGPS SETUP
DGPS
RTCM VER BYTE FORM FIRST BIT PARITY BIT STOP BIT BIT RATES BAUD RATES
: Cursor ENT : Sel ESC : Esc
ON OFF
1.0 2.0 8-6 8-8
LSB
8
MSB EVEN ODD NONE 1 2 7 300 600 1200 2400 4800 9600
Figure 1-36 DGPS setup menu
4. Press t to select ON in the DGPS line.
5. Change settings referring to the operator's manual of the DGPS beacon receiver. Circumscribed options are standard settings.
6. Press the MENU key.
1-26

OPERATIONAL OVERVIEW

2.1 Control Description

All operations of the GP-1610CF are carried out with the controls on the front panel of the display unit. All controls respond immediately to your command and the unit emits a beep to signify correct key sequence. (Invalid key input emits several beeps.)
Cursor Pad
• Shifts cursor and screen.
• Selects items on menus.
• Opens/closes menu.
• Escapes from current operation.
Selects video sounder displays.
Selects automatic or manual video sounder operation.
Registers waypoints.
Shrinks display range (blows up chart).
Places own position or cursor position at screen center.
• Adjusts brilliance.
• Switches +, -, North, South, East and West.
MENU
ESC
SNDR
AUTO
WPT
ZOOM IN 4
CNTR
TONE
NU/CU
ENT
PLTR
1
2
3
5
6
EVENT
MOB 7
GOTO
8
ZOOM OUT 9
CURS
0
CLR
POWER
• Alternately selects north-up and course-up presentation modes.
• Registers items on menus.
Alternately selects plotter, plotter/sounder, data, graphic and highway displays.
Inscribes various marks.
Sets/cancels destination.
Expands display range (shrinks chart).
Displays/erases cursor.
• Clears data.
• Erases selected waypoint, mark.
• Silences audible alarm.
Turns power on/off.
Figure 2-1 Controls
2-1

2.2 Inserting Chart Cards

Note: Insert chart card before turning on the power. This enables automatic loading of chart.
pleted, the GPS receiver status indication "ACQ" (at the bottom right-hand corner) changes to 2D (or 3D). ACQ means the re­ceiver is acquiring the GPS signal, and 2D (or 3D) means the position data is reliable.
1. Open the memory card slot cover at the bottom of the display unit by unfastening two screws.
Screws
Cover
Figure 2-2 Display unit, bottom
2. Insert the chart card label side up, arrow forward.
Chart card
EJECT button
02522530**
= =
OK OK OK OK
ROM RAM VRAM Battery
Program No. Base Chart No.
— — WARNING— —
NO NATIONAL HYDROGRAPHIC OFFICE HAS VERIFIED THE INFORMATION IN THIS COASTLINE DATA CARD AND NONE ACCEPT LIABILITY FOR THE ACCURACY OF REPRODUCTION OR ANY MODIFICATIONS MADE THEREAFTER. THIS PRODUCT WITH THIS COASTLINE DATA CARD DOES NOT REPLACE THE REQUIREMENT TO USE THE APPROPRIATE PRODUCTS FOR NAVIGATION ACCORDING TO NATIONAL AND INTERNATIONAL REGULATONS.
FURUNO ELECTRIC CO., LTD.
Displayed for about one second.
** Program version no.
Displayed for about one minute.
Arrow forward
Figure 2-3 How to insert chart card
3. Close the cover and fix it.
Note: Always keep the cover closed to keep foreign material out of the chart card drive.

2.3 Turning On/Off the Power

Press the POWER key to turn the power on/ off. When the unit is turned on, it proceeds in the sequence shown in Figure 2-4. About 20 seconds after the start-up sequence is com-
Plotter display
BRG+ 232.0° RNG+ 0.00nm ACQ DEP 110m TMP 16 .0°C 13:41 + 34°43.801’N 135°21.163’E
GPS Fixing Status ACQ (Acquiring) is replaced by 2D or 3D when position becomes reliable.
Figure 2-4 Start-up sequence
2D: Ship's position is calcurated by using data
from 3 satellites.
3D: Ship's position is calcurated by using data
from 4 satellites.
2-2

2.4 Adjusting Tone and Brilliance

1. Press the TONE key. The tone and bril-
liance setting display appears.
2. Press the PL TR key again to select a plot­ter mode. Each time the key is pressed the mode changes in the following se­quence:
Plotter Plotter/Sounder
Data
LOW HIGH
TONE : 5
LOW HIGH
BRILL : 8
Figure 2-5 Tone and display brilliance
setting display
2. Operate t or s to adjust display tone.
3. Press or to adjust display brilliance. Note: Tone or brilliance must be adjusted
within about 10 seconds after pressing the TONE key or the display will be erased.

2.5 Plotter Displays

There are five types of plotter displays: plot­ter, plotter/sounder, data, graphic and high­way.
Selecting a plotter display
1. Press the PLTR key. The SELECT PLOT ­TER MODE screen appears.
SELECT PLOTTER MODE
Plotter
Plotter/Sounder Data Graphic Highway
Highway Graphic
Y ou may also select a mode by pressing or and the ENT key.
3. Press the ESC key to conclude your se­lection.
Sample plotter displays
Plotter display
The plotter display mainly shows chart, ship's track, waypoints, marks and various data.
Course bar
Own ship mark
Icon (chart)
Course, speed
Depth
CSE 180.0° SPD 16.8kt 2D DEP 110m TMP 16.0°C 12:13 POS 34°26.345’N 135°41.232’E
Position
Water temperature (Requires optional sensor.)
Track
GPS status
Time
Figure 2-7 Plotter display
PLTR: Sel ESC: Close
Figure 2-6 Select plotter mode screen
2-3
Plotter/sounder display
Graphic display
This display provides a plotter display on the left 2/3 of the screen an the normal sounder display on the right 1/3. It is useful for search­ing fish schools at cruising speed.
Sounder
Plotter
Display
Display
0
50
100
150
200k
200
CSE 180.0° SPD 16.8kt 2D DEP 110m TMP 16.0°C 12:13 POS 34°26.345’N 135°41.232’E
Figure 2-8 Plotter/sounder display
Data display
This display provides analog and digital dis­plays of cross track error (XTE), course, etc. It is useful for monitoring progress when steer­ing by autopilot. The XTE scale shows direc­tion and amount to steer to return to course.
POS
34° 26.345°N 135° 38.417' E
Course
Course set
Distance
1nm
run
TRIP
ETA
Estimated time of
arrival at waypoint
Position
W
S
BRG
248°
CSE
323°
RNG
21.0
nm
TTG
23: 20
14
Bearing to waypoint
Course indicator
XTE
1nm
scale
112
nm
H
20
M
Range to waypoint
Time-to-go to waypoint
This display provides various navigation data, such as position, course and speed, in digital form.
Date
POS 1997.01.21 12:13
34° 26.345' N
Position
135°38.417' E
CSE
127.1 ° 16.8
DEP
110m 15.2
WP 001 RNG 173.4 nm BRG 180.0° XTE 0.25 nm
SPD
TMP
kt
°C
Course, speed
Depth, water temperature
Waypoint no. Range to waypoint Bearing to waypoint Cross-track error
Figure 2-9 Data display
Figure 2-10 Graphic display
Highway display
The highway display provides a graphic pre­sentation of ship’s track along a course. It is useful for monitoring XTE-the XTE scale shows direction and amount in nautical miles to steer to return to course.
15 10
5
North mark
WP001 120.6° 2.2nm CSE 180.0° SPD 16.8kt 2D DEP 113.6 m TMP 16.0°C 12:13 POS 34°26.345'N 135°41.232'E
Bearing and range to waypoint
01
5
5
Waypoint
Own ship mark
XTE scale
2-4
Figure 2-11 Highway display

2.6 Sounder Displays

50 kHz
200 kHz
Normal sounder display
Five sounder displays are available: normal, marker zoom, bottom zoom, bottom-lock and A-scope display. You may select a sounder display with the SNDR key.
Selecting a sounder display
1. Press the SNDR key. The SELECT SOUNDER MODE screen appears.
SELECT SOUNDER MODE
Normal
Marker Zoom Bottom Zoom Bottom Lock A-Scope
50kHz
SNDR: Sel ESC: Close
200kHz
Figure 2-12 Select sounder mode screen
2. Press the SNDR key again to select a sounder mode. Each time the key is pressed the sounder mode changes in the following sequence:
Normal Marker Zoom
Bottom Zoom
50 kHz
The sounder uses ultrasonic pulses to detect seabed conditions. The lower the frequency of the pulse, the wider the detection area. Therefore, the 50 kHz frequency is useful for general detection and judging seabed condi­tion.
Figure 2-13 Detection area
200 kHz
The higher the frequency of the ultrasonic pulse the better the resolution. Therefore, the 200 kHz frequency is ideal for detailed ob­servation of fish schools.
Bottom-LockA-Scope
Y ou may also select a sounder mode by press­ing or and the ENT key.
3. Press the ESC key to conclude your se­lection.
Water temp. display
Temp. scale
Water temp. graph
Color bar
Depth
°C 30
20
10
0
162
CSE 180.0° SPD 16.8kt DEP 162m TMP 16.0 °C POS 34° 26.245' N 135° 41.232' E
68.3
200k
0
50
100
150
200
2D
13:41
Depth scale
Variable Range Marker (white)
Fish school
Bottom
Tx frequency
Figure 2-14 Typical 200 kHz normal
sounder display
2-5
Marker zoom display
Bottom-lock display
This mode expands anywhere of the normal picture to full vertical size of the screen on the left-half window. You may specify the portion to expand by operating the VRM (V ariable Range Marker), which you can shift with or . The segment between the VRM and zoom range markers are expanded. The length of the segment is equal to one division of the depth scale.
Fish school
Normal
Marker zoom display
100
90.0
150
162
CSE 180.0° SPD 16.8kt DEP 162m TMP 16.0 °C
POS 34° 26.245' N 135° 41.232' E
200
Fish school
200k
0
50
100
150
200
2D
13:41
display
VRM (white)
This part is zoomed.
Expansion range marker (yellow)
The bottom-lock display provides a com­pressed normal picture on the right half of the screen and a 5 or 10 meter wide layer in con­tact with the seabed is expanded onto the left half of the screen. (Y ou may select layer width on the SOUNDER SETUP menu in the SYS­TEM menu.) This mode useful for bottom discrimination.
Bottom-lock display
Fish school
This part is zoomed.
50
68.3
40
Fish school
30
20
10
162
CSE 180.0° SPD 16.8kt DEP 162m TMP 16.0 °C POS 34° 26.245' N 135° 41.232' E
0
200k
50
100
150
200
2D
14:02
0
Expansion range marker (yellow)
Normal display
Figure 2-17 Bottom-lock display plus
normal display
Figure 2-15 Marker zoom display
plus normal display
Bottom zoom display
This mode expands bottom and bottom fish echoes two to five times to vertical size of the screen. This mode is useful for determining bottom hardness. A bottom displayed with a short echo tail usually means it is a soft, sandy bottom. A long echo tail means a hard bot­tom.
200k
50
100
150
200
2D
14:02
0
Normal display
Expansion range marker (yellow)
Bottom zoom display
Bottom
Display is blown up three times larger than normal display.
100
40.0
120
140
160
162
CSE 180.0° SPD 16.8kt DEP 162m TMP 16.0 °C POS 34° 26.245' N 135° 41.232' E
180
Note: The expansion marker is not displayed in the defualt setting. It may be turned on in the SNDR SETUP menu in the SYSTEM menu.
A-scope display
This display shows echoes at each transmis­sion with amplitudes and tone proportional to their intensities, on the right 1/3 of the screen. It is useful for estimating the kind of fish school and seabed composition.
0
A-scope display
2D
14:02
Normal display
50
68.3
100
150
160
CSE 180.0° SPD 16.8kt DEP 160m TMP 16.0 °C
POS 34° 26.245' N 135° 41.232' E
200
200k
Figure 2-18 A-scope display (right side)
Figure 2-16 Bottom zoom display plus
normal display
2-6

2.7 Basic Menu Operation

3. Press or to select menu item.
1. Press the MENU key to display the MAIN menu.
MAIN MENU
1. DISPLAY SETUP
2. TRACK/MARK SETUP
3. ERASE TRACK/MARK
4. ROUTE/ROUTE LIST
5. ALARM SETUP
6. VIDEO SOUNDER SETUP
7. MEMORY SAVE/LOAD
8. CLEAR MEMORY
0. SYSTEM MENU : Cursor ESC: Esc
Figure 2-19 Main menu
2. Press appropriate numeric key or or
and ENT key to select menu desired. The highlighted cursor shifts with numeric key or Cursor Pad operation. For example, press the [1] key to display the DISPLA Y SETUP menu.
4. Press t or s to select option.
5. To enter numeric data use the numeric keys. The entry of leading zero is neces­sary; trailing zero is optional. For ex­ample, to enter 050, press [0] [5]. W rong numeric data can be cleared with the CLR key .
6. After entering numeric data, press the ENT key. (It is not necessary to press the ENT key after selecting an option which does no require entry of numeric data.)
7. Press the MENU key to escape.
DISPLAY SETUP
HUE
LAND BRILL LAND COLOR PLACE NAME GRID COLOR COURSE BAR TIME MARK WPT MARK SIZE CURSOR SIZE
: Cursor ESC: Esc
1 2
BRT DIM OFF
RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF L S L S
Figure 2-20 Display setup menu
2-7

VIDEO SOUNDER OPERATION

3.1 Principle of Operation

The video sounder of the GP-1610CF deter­mines the distance between its transducer and underwater objects such as fish, lake bottom or seabed and displays the results on screen. It does this by utilizing the fact that an ultra­sonic wave transmitted through water travels at a nearly constant speed of 4800 feet ( 1500 meters) per second. When a sound wave strikes an underwater object such as fish or sea bottom, part of the sound wave is reflected back toward source. Thus by calculating time difference between the transmission of a sound wave and the reception of the reflected sound wave, the depth to the object can be determined.
The entire process begins in the display unit. Transmitter power is sent to transducer as a short pulse of electrical energy . The electrical signal produced by the transmitter is converted into an ultrasonic signal by the transducer and transmitted into the water. Any returning sig­nals from intervening objects (such as a fish school) are received by the transducer and converted into an electrical signal. The sig­nals are then amplified in the amplifier sec­tion, and finally, displayed on screen.
The picture displayed is made up of a series of vertical scan lines, one for each transmis­sion. Each line represents a snapshot of what has occurred beneath the boat. Series of snap­shots are accumulated side by side across screen, and the resulting contours of the bot­tom and fish between the bottom and surface are displayed.
Figure 3-1 Underwater conditions and video sounder display
3-1
3.2 Automatic Sounder
3.3 Manual Sounder
Operation
Automatic operation is useful when you are preoccupied with other tasks and do not have time to adjust the display.
How it works
The automatic function automatically selects the proper gain and range scale according to depth. It works as follows:
Range changes automatically to locate the bottom on the lower half of screen. It jumps to one step shallower range when bottom echoes reach a half way point of the full scale from top and to one step deeper range when they come to the lower edge of scale.
The gain is automatically adjusted to dis­play the bottom echo in reddish brown (de­fault color arrangement).
Clutter level, (on the VIDEO SOUNDER SETUP menu), which suppresses low level noise, is automatically adjusted.
Operation
Manual operation is useful for observing fish schools and bottom using fixed gain setting.
The gain, range and range shifting functions used together give you the means to select the depth you can see on screen. The basic range can be thought of as providing a "window" into the water column and the range shifting as moving the "window" to the desired depth.
Manually adjusting the sounder picture
1. Press the AUTO key to display the AUTO MODE menu.
2. Press to select Manual.
AUTO MODE
Cruise Fish
Manual
Two types of automatic modes
Two types of automatic modes are available: cruise and fish. Cruise is for tracking the bot­tom, and fish is for searching fish schools. Since "Cruise" uses a higher clutter rejection setting than "Fish," it is not recommended for fish detection – weak fish echoes may be de­leted by clutter rejection.
How to enable automatic sounder operation
1. Press the AUTO key.
AUTO MODE
Cruise
Fish Manual
Low High
Gain
Range 5 10 20
40 80 Shift 0 m
300 m160
Figure 3-3 Gain, range and shift
adjustment display
3. Press to select Gain.
Normally, set the gain to the point where excessive noise does not appear on screen. Use a higher gain setting for greater depths and a lower setting for shallower waters.
4. Press t or s to set level.
Figure 3-2 Auto mode display
2. Press the AUTO key again to select Cruise or Fish.
3. Press the ENT or MENU key.
3-2
Too high Proper Too low
Figure 3-4 Examples of proper
and improper gain
5. Press to select Range.
MAIN MENU
1. DISPLAY SETUP
2. TRACK/MARK SETUP
3. ERASE TRACK/MARK
4. ROUTE/ROUTE LIST
5. ALARM SETUP
6. VIDEO SOUNDER SETUP
7. MEMORY SAVE/LOAD
8. CLEAR MEMORY
0. SYSTEM MENU : Cursor ESC: Esc
6. Press t or s to select basic range de­sired.
7. Press ▼ to select Shift.
Shift
Display
Figure 3-5 Shift concept
8. Press t or s to shift the basic range, if desired.
9. Press the MENU key.
3.4 Suppressing Low Level
Noise
Light-blue dots may appear over most of screen. This is mainly due to dirty water or noise. This noise can be suppressed by ad­justing CLUTTER on the VIDEO SOUNDER SETUP menu.
Figure 3-6 Main menu
2. Press the [6] key to display the VIDEO SOUNDER SETUP menu.
VIDEO SOUNDER SETUP
CLUTTER AUTO
ADVANCE STOP
NOISE LM OFF
DEP CHIME
TEMP GRP SIG LEV ZOOM
HUE
ESC : Esc
0 1 2 3
1/8 1/4
1/2 1/1 2/1
NL1 NL2 NL3
ON OFF ON
SL0 SL1 X2 X3
: Cursor
1
OFF
X4 X5
2
345
SL2
0
40
80
120
2D 5:55 65 E
Figure 3-7 Video sounder setup menu
3. Press to select CLUTTER.
4. Press t or s to select clutter rejection level desired; 0 (OFF), 1, 2, 3 or AUTO. The higher the number the higher the de­gree of suppression. Note that weak ech­oes may not be displayed when the clutter circuit is on.
5. Press the MENU key.
When the sounder mode is Auto, the clutter suppression setting is fixed at AUTO. T o sup­press low level noise in manual sounder op­eration do the following:
1. Press the MENU key.
Clutter Clutter removed
Figure 3-8 How the clutter function works
3-3

3.5 Selecting Picture Advance Speed

When selecting a picture advance speed, keep in mind that a fast advance speed will expand the size of the fish school horizontally on the screen and a slow advance speed will con­tract it.
1. Press the MENU key.
2. Press the [6] key to display the VIDEO
SOUNDER SETUP menu.
4. Press t or s to select degree of suppres­sion desired; OFF , NL1, NL2 or NL3. The higher the number the greater the degree of suppression.
5. Press the MENU key.
3. Press or to select ADVANCE.
4. Press t or s to select advance speed (a "fraction") desired, or STOP to suspend advancement of the picture.
The fractions in the menu denote number of scan lines produced per transmission. For example, 1/8 means one scan line is produced every 8 transmissions.
5. Press the MENU key.
Fast Slow
Figure 3-9 Comparison of picture
advance speeds

3.6 Suppressing Interference

Interference from other acoustic equipment operating nearby or other electronic equip­ment on your boat may show itself on the dis­play as shown in Figure 3-10.
Electrical interference
Noise limiter turned on
Interference from other sounder
Figure 3-10 How the noise limiter works
Turn the noise limiter circuit off when no in­terference exists, otherwise weak echoes may be missed.

3.7 Erasing Weak Echoes

Dirty water or reflections from plankton may be painted on the display in green or light blue. These weak echoes may be erased as follows:
1. Press the MENU key.
2. Press the [6] key to display the VIDEO SOUNDER SETUP menu.
3. Press or to select SIG LEV.
To suppress interference, do the following:
1. Press the MENU key.
2. Press the [6] key to display the VIDEO SOUNDER SETUP menu.
3. Press or to select NOISE LM.
3-4
4. Press t or s to select level of erasure; SL0 (OFF), SL1 or SL2. The higher the number the stronger the echo will be erased.
5. Press the MENU key.
Weak echoes
3. Press or to select HUE.
4. Press t or s to select hue arrangement number . (A portion of the sounder display appears so you may see the result of your selection.)
euH 12345
Signal level adjusted
Figure 3-11 How SIG LEV works

3.8 Changing Zoom Magnification Factor

You may select the zoom magnification fac­tor for the marker and bottom zoom modes. This the amount the zoomed picture is mag­nified in relation to the normal picture.
dgkB
roloc
eulBthgiL
eulb
kcalBneerGkcalB
5. Press the MENU key.

3.10 Measuring Depth

The VRM (Variable Range Marker) functions to measure the depth to fish schools, etc.
1. Press or to place the VRM on an
echo.
2. Read the VRM range just above the VRM.
0
Depth of VRM
58.3
40
VRM
80
120
1. Press the MENU key.
2. Press the [6] key to display the VIDEO
SOUNDER SETUP menu.
3. Press or to select ZOOM.
4. Press t or s to select zoom factor de-
sired; x2, x3, x4 or x5.
5. Press the MENU key.

3.9 Selecting Hue (color arrangement)

The GP-1610CF provides several color ar­rangements to match lighting conditions.
1. Press the MENU key.
2. Press the [6] key to display the VIDEO
SOUNDER SETUP menu.
132
CSE 180.0° SPD 16.8kt DEP 132m TMP 16.0 °C POS 34° 26.245' N 135° 41.232' E
160
200k
2D
14:32
Figure 3-12 How to measure
depth with the VRM

3.11 Knowing Depth Change by Audible Chime

The depth chime function alerts you to change in depth by audible chime Depth change di­rection is given by chime interval; the longer the interval the greater the change in depth.
T o turn on or off the depth chime function, do the following:
1. Press the MENU key.
3-5
2. Press the [6] key to display the VIDEO SOUNDER SETUP menu.
3. Press or to select DEP CHIME.
4. Press t or s to select ON or OFF.
5. Press the MENU key.
3.12 Selecting Unit of Depth
Measurement
You may display the depth in meters, feet or fathoms as follows:
SYSTEM MENU
1. SELF TEST
2. PLTR SETUP
3. SOUNDER SETUP
4. UNIT SETUP
5. SENSOR SETUP
6. NMEA SETUP
7. GPS SETUP
8. DGPS SETUP
9. CHART POSN CALIB
: Cursor ENT: Sel ESC: Esc
Figure 3-14 System menu
1. Press the MENU key.
2. Press the [0] key to select SYSTEM MENU.
3. Press the [4] key to display the UNIT SETUP menu.
UNIT SETUP
DISTANCE
DEPTH TEMP
: Cursor ESC: Esc
nm
m
°C
km ft °F
sm fa
Figure 3-13 Unit setup menu
4. Operate the Cursor Pad to select Depth.
5. Operate the Cursor Pad to select m, ft, or fa.
6. Press the MENU key.
3. Press the [5] key to select SENSOR SETUP.
SENSOR SETUP SPD SENSOR STW SOG TEMP SENSOR OWN NMEA SPD CALIB +00%(-50~+50)
TEMP CALIB +00.0 °C
DEPTH CALIB +0.0 m
: Cursor : +/­ESC: Esc
Figure 3-15 Sensor setup menu
4. Press or to select DEPTH CALIB.
5. Enter correction with numeric keys.
6. Press the ENT key.
7. Press the MENU key.

3.13 Offsetting the Depth Readout

If the depth displayed is not correct you may offset to it to correct the correct value as fol­lows:
1. Press the MENU key.
2. Press the [0] key to select the SYSTEM
SETUP menu.
3-6

3.14 Displaying the Water Temperature Graph

A water temperature graph can be displayed. This function requires a water temperature sensor.
To turn on/off the water temperature graph:
1. Press the MENU key.
2. Press the [6] key to display the VIDEO
SOUNDER SETUP menu.
3. Press or to select TEMP GRP.
4. Press ▲ or to select TEMP CALIB.
4. Press t or s to select ON or OFF.
5. Press the MENU key.
Water temp. scale
Water temp. graph
°C 30
20
10
0
162
CSE 180.0° SPD 16.8kt
DEP 162m TMP 16.0 °C
POS 34° 26.245' N 135° 41.232' E
68.3
200k
50
100
150
200
2D
14:32
0
Fish school
Bottom
Figure 3-16 Water temperature graph

3.15 Selecting Unit of Water Temperature Measurement

5. Enter correction with numeric keys.
6. Press the ENT key .
7. Press the MENU key.

3.17 Fish Alarm

The fish alarm sounds when a fish school is detected within the selected range. When a fish school comes within the range set the
audible alarm sounds and the alarm icon and the indication FISH appear. You may si-
lence the alarm with the CLR key. The indi­cation remains on the screen until the fish echo is out of the alarm range.
1. Press the MENU key.
2. Press the [5] key to select ALARM SETUP.
Y ou may display temperature in degrees Cen­tigrade or Fahrenheit as follows:
1. Press the MENU key.
2. Press the [0] key to select SYSTEM MENU.
3. Press the [4] key to display the UNIT SETUP menu.
4. Operate the Cursor Pad to select T emp.
5. Operate the Cursor Pad to select °C or °F.
6. Press the MENU key.
3.16 Offsetting Water
Temperature Readout
In some instances the water temperature read­out may be off by a few degrees. You can off­set it to the correct temperature as follows:
1. Press the MENU key.
2. Press the [0] key to select the SYSTEM SETUP menu.
ALARM SETUP
ARRIVAL
XTE
SPEED
TEMP
TRIP
: Cursor
ARRIVAL Range ON Range WITHIN Speed WITHIN Temp ON Range
ANCHOR
00.500nm
00.250nm OVER
11.0~15.0kt OVER
+11.0~+15.0°C
0005.00nm
OFF
OFF
OFF
OFF
OFF
ESC: Esc
Figure 3-17 Alarm setup menu
3. Press to select FISH on page 2.
ALARM SETUP
FISH
BOTTOM
: Cursor
NORM B/L B/L ON Range
003.4~004.6m
003.4~004.6m
OFF
OFF
ESC: Esc
1/2
2/2
3. Press the [5] key to select SENSOR SETUP.
Figure 3-18 Alarm setup menu, page 2
3-7
4. Press s or t to select NORMAL or B/L (Bottom Lock).
5. Press to send the cursor to the second line (Range or B/L).
sounds and the alarm icon
and the indica-
tion TEMP appears on the display. The indi­cation remains on the display until the temperature is no longer in the alarm range.
6. Key in the depth desired.
7. Press the ENT key.
8. Press the MENU key.

3.18 Bottom Alarm

The bottom alarm sounds when the seabed depth is narrower than the alarm range set. When the bottom echo enters the alarm range set the audible alarm sounds and the alarm
icon
and the indication DEPTH appears.
You can silence the audible alarm with the CLR key . The DEPTH indication remains on the screen until the bottom echo goes out of the alarm range.
1. Press the MENU key.
2. Press the [5] key to select ALARM SETUP.
3. Press ▼ to select BOTTOM on page 2.
4. Press t to select ON.
5. Press to send the cursor to the fourth line (Range).
6. Key in the range desired.
7. Press the ENT key.
8. Press the MENU key.

3.19 Water Temperature Alarm

The water temperature alarm sounds when the water temperature is within (or over) the pre­set temperature range. This alarm is useful for searching for specific species of fish, since each species of fish has its own habitable water temperature. (This alarm requires connection of a water temperature sensor.)
When the water temperature becomes within (or over) the alarm range the audible alarm
1. Press the MENU key.
2. Press the [5] key to select ALARM SETUP.
3. Press ▲ or to select TEMP.
4. Press s or t to select WITHIN or OVER.
5. Press to send the cursor to the eighth line (Temp).
6. Key in the temperature desired.
7. Press the ENT key.
8. Press the MENU key.
3.20 Turning On/Off the
Expansion Range Marker
The expansion range marker appears in the normal display picture in the bottom marker and bottom zoom displays and marks the area which is expanded in the bottom marker and bottom zoom pictures. You may turn the marker on or off as follows:
Fish school
Normal
200k
50
100
150
200
2D
13:41
0
display
VRM (white)
This part is zoomed.
Expansion range marker (yellow)
Marker zoom display
162
CSE 180.0° SPD 16.8kt
DEP 162m TMP 16.0 °C
POS 34° 26.245' N 135° 41.232' E
200
100
150
Fish school
90.0
Figure 3-19 Marker zoom display
1. Press the MENU key.
2. Press the [0] key to select SYSTEM MENU.
3. Press the [3] key to display the SOUNDER SETUP menu.
3-8
SNDR SETUP
EXP MARKER
GAIN ADJ
50k
200k BTM-LOCK TRANSMIT
: Cursor
ESC: Esc
ON OFF
(-20~+20)
+00 +00 NARROW WIDE ON OFF
Figure 3-20 Sounder setup menu
4. Operate the Cursor Pad to select EXP MARKER.
5. Operate the Cursor Pad to select ON or OFF.
6. Press the MENU key.

3.22 Selecting Bottom-Lock Expansion Width

The expansion width for the bottom-lock dis­play can be selected to narrow (5 meters) or wide (10 meters) as follows:
1. Press the MENU key.
2. Press the [0] key to select SYSTEM
MENU.
3. Press the [3] key to display the
SOUNDER SETUP menu.
4. Operate the Cursor Pad to select BTM-
LOCK.
5. Operate the Cursor Pad to select NAR-
ROW or WIDE.
6. Press the MENU key.

3.21 Receiver Sensitivity (gain) Adjustment

If the gain effect is too low or too high, it may be offset as follows:
1. Press the MENU key.
2. Press the [0] key to select SYSTEM
MENU.
3. Press the [3] key to display the
SOUNDER SETUP menu.
4. Operate the Cursor Pad to select 50k.
5. Press t or s to adjust level.
6. Operate the Cursor Pad to select 200k.
7. Press t or s to adjust level.
8. Press the MENU key.

3.23 Stopping Transmission

You may disable transmission as follows:
1. Press the MENU key.
2. Press the [0] key to select SYSTEM MENU.
3. Press the [3] key to display the SOUNDER SETUP menu.
4. Operate the Cursor Pad to select TRANS­MIT .
5. Operate the Cursor Pad to select OFF.
6. Press the MENU key.
3-9

3.24 Interpreting the Display

Bottom echo
Zero line
The zero line (sometimes referred to as the transmission line) represents the transducer’s position, and moves off the screen when a deep phased range is used.
Zero line
Shift
Figure 3-21 Zero line
Fish school echoes
Fish school echoes will generally be plotted between the zero line and the bottom. Usu­ally the fish school/fish echo is weaker than the bottom echo because its reflection prop­erty is much smaller compared to the bottom. The size of the fish school can be ascertained from the density of the display.
Echoes from the bottom are normally the strongest and are displayed in reddish brown color (in default color arrangement) but the color and width will vary with bottom com­position, water depth, frequency, sensitivity, etc.
In a comparatively shallow depth, a high gain setting will cause a second or sometimes a third or a fourth echo to be displayed at the same interval between them below the first echo trace. This is because the echo travels between the bottom and the surface twice or more in shallow depths.
The color of the bottom echo can be used to help determine the density of the bottom ma­terials (soft or hard). The harder the bottom, the wider the trace. If the gain is set to show only a single bottom echo on mud, rocky bot­tom will show a second or third bottom re­turn. The range should be chosen so the first and second bottom echoes are displayed when bottom hardness is being determined.
Intensity
difference in
water depth
Large school
Size of
fish school
Small school
Figure 3-22 Fish school echoes
Second bottom
echo
Rock base
Mud
and sand
Figure 3-23 Bottom echoes
3-10
Surface noise/aeration
When the waters are rough or the boat passes over a wake, surface noise may appear near the zero line. As surface turbulence is acous­tically equivalent to running into a brick wall, the bottom echo will be displayed intermit­tently . Similar noise sometimes appears when a water temperature difference (thermocline) exists. Different species of fish tend to prefer different temperature zone, so the thermocline may be useful to help identify target fish. 200 kHz tends to show shallow thermoclines bet­ter than 50 kHz.
In rough waters the display is occasionally in­terrupted due to below-the-ship air bubbles obstructing the sound path. This also occurs when the boat makes a quick turn or reverses movement. Lowering the picture advance speed may reduce the interruption. However, reconsideration of the transducer installation may be necessary if the interruption occurs frequently.
Surface noise
Caused by
aerated water
Thermocline
Figure 3-24 Surface noise/aeration
3-11

GPS, CHART OVERVIEW

4.1 Principle of GPS

What is GPS?
GPS is an acronym meaning Global Position­ing System. GPS (sometimes referred to as NAVST AR) is a highly precise satellite navi­gation system developed by the U.S. Depart­ment of Defense.
A constellation of 24 satellites emplaced in nearly 20,000-kilometer high 12-hour circu­lar orbits provides highly precise, continuous, worldwide, all-weather position plus time and velocity information to GPS receiver­equipped vehicles, vessels and aircraft.
1 Satellite locations are calculated.
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:
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 positions and their distances from the GPS receiver are known. The point of intersection of the satellites used in fixing position.
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 d1, d2, and d3.
d2
d1
GPS fix
d3
Figure 4-1 How GPS determines position
4-1
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 4-2. 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). 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 4-3.
ERROR (RMS)
60 m
45 m
30 m
15 m
DOP
3 6 9 12
Low accuracy
High accuracy
Figure 4-2 Satellite positions and
accuracy of position fix
Figure 4-3 HDOP rate and position error
In this manual HDOP is referred to as DOP.
4-2

4.2 Presentation Mode

BRG+ 132.0° RNG+ 5.0mm 2D DEP 110m TMP 16.0°C 14:05 + 32°10.523’N 133°27.254’E
Own ship mark
Cursor (Size can be selected to large or small. Size shown is large.)
Bearing and range from own ship to cursor
Cursor position in latitude and longitude

4.3 Shifting the Cursor

Two types of display presentations are pro­vided for the plotter display and plotter/ sounder display: north-up and course-up. You can select one with the NU/CU key.
North-up
North (zero degrees) is at the top of the dis­play and own ship is at the center of the screen. This mode is useful for long-range naviga­tion.
Own ship mark
CSE 340.0° SPD 16.8kt 2D DEP 110m TMP 16.0°C 14:05 POS 34°26.345’N 135°41.232’E
l. Press the CURS key to turn the cursor on.
2. Operate the Cursor Pad. The cursor moves in the direction the Cursor Pad is pressed. When the cursor reaches an edge of the screen, the display is scrolled.
Figure 4-6 Plotter display, showing
location of cursor data
Figure 4-4 North-up display
Course-up
When destination is set it is at the top of the screen, the north mark appears at the lower left side of the screen and points to north. A triangle marks own ship's position.
01
North mark
WP001 0° 10nm CSE 10.0° SPD 16.8kt 2D DEP 110m TMP 16.0°C 14:08 POS 34°26.345’N 135°41.232’E
Destination
Own ship mark
Bearing and range to waypoint
Figure 4-5 Course-up display
When the cursor is turned off, own ship data is shown instead of cursor data.
Own ship mark
Course, speed
CSE 340.0° SPD 16.8kt 2D DEP 110m TMP 16.0°C 14:05 POS 34°26.345’N 135°41.232’E
Position
Figure 4-7 Plotter display, showing
location of own ship's data
4-3

4.4 Selecting Screen Center by Cursor

1. Press the CURS key to display the cur-
sor.
2. Operate the Cursor Pad to place the cur-
sor where desired.
When a wrong card is inserted or a wrong chart scale is selected, the land will be hol­low. Insert the proper card and select a suit able chart scale. Chart icons appear to help you select suitable chart scale. Table 4-1 ex­plains the chart icons and their meanings.
Table 4-1 Chart icons and their meanings
3. Press the CNTR key.

4.5 Shifting the Display

1. Press the CURS key to turn off the cur-
sor.
2. Operate the Cursor Pad to shift the dis-
play.

4.6 Centering Position

1. Press the CURS key to turn off the cur-
sor.
2. Press the CNTR key.

4.7 Changing Chart Scale/ Range

Chart scale (range) may be selected with the ZOOM IN and ZOOM OUT keys. The ZOOM IN key blows up the chart; the ZOOM OUT key shrinks it.
Icon Meaning
Proper card is not inserted or chart scale is too small. Press the ZOOM OUT key to adjust chart scale.
Chart scale is too large. Press the ZOOM IN key to adjust chart scale.
Suitable chart scale is selected.
Indices and chart enlargement
When the ZOOM OUT key is pressed you will see several frames. These frames are called indices and they show you what parts of the chart can be enlarged in the current pic­ture range. The areas circumscribed with smaller frames can be enlarged, but the area enclosed by the largest frame cannot.
Note: When the display is blown up or shrunk beyond the range of the chart card in use the message NO CHART appears to alert you.

4.8 Chart Cards

The chart cards contain nautical charts. When you insert a suitable chart card in the drive and your boat is near land, a chart appears with the land portion arranged according to the "land settings" in the DISPLAY SETUP menu.
4-4
Figure 4-8 Sample chart (Japan and
South Korea) showing indices
Remarks on chart display
A chart will not be displayed in the following conditions:
• When the chart scale is too large or too small.
• When scrolling the chart outside the indi­ces.
When this happens, the message NO CHAR T appears for a couple of seconds. The icon also appears.
FURUNO chart symbols
The table below shows FURUNO charts sym­bols and their meanings.
Table 4-2 FURUNO chart symbols
Symbol Description
Summit Wreck Lighthouse
Table 4-3 NAVIONICS chart symbols
Type Color Symbol
Lighthouse
Lighted-buoy
Foghorn Lighthouse
Red Green White Others Red Green White Others
R
G
W
¡
R
G
W
R
R
The arc is viewable range and alphabet is lighting color.
Red R Cyan C Green G Yellow Y White WBlue B Orange O
R
Lighted Buoy Buoy Radio Station Position of Sounding Obstruction Fishing Reef Platform Anchorage
For multiple colors
4-5
Difference between FURUNO and NAVIONICS charts
Table 4-4 Comparison of chart systems
metIONURUFSCINOIVAN
Lighthouse and buoy data display
You can find data of lighthouses and buoys by placing the cursor on them. Lighthouse and buoy data are displayed as shown in Figure 4-9.
gnillorcstoD
ytilibapac
pu-esruoC
yalpsid
atadesuohthgiL
noitatneserp
rosructamooZ
noitisop
taegnaR
rotauqE
tesffotrahC
yrtneatad gniretneCSEY2*
SEYSEY
SEYON
3*SEYSEY
SEY1*
,2,5.1,1
,6,5,4,3
,8
2918...21
mn
SEYON
mn4201...8
,52.0,521.0
,4,3,2,1,5.0
*1 NAVIONICS chart may not center cursor
perfectly .
*2 NAVIONICS chart may not center own
ship’s position perfectly.
Lighthouse or buoy data
FL 12S 27M
Place the cursor on a lighthouse or buoy mark.
Example of data displayed
FL(2) G 12S 15M
Visibility in nautical mile (ex.: 15 miles)
Period (ex.: 12 seconds)
Light color
Number of flashes per period (ex.:2)
FL : Flashing F : Fixed light F FL : Fixed and Flashing light MO : Morse code light Oc : Occulting light
*3 Newly designed chart cards containing
lighthouse data. Chart cards for North America area are completed, and others are in production.
Figure 4-9 Lighthouse and buoy data
4-6

TRACK

5.1 Stopping/Restarting
Plotting of Track
When your boat is at anchor or returning to port you probably won't need to record its track. You can stop recording the track, to conserve the track memory, as follows:
l. Press the MENU key.
2. Press the [2] key to select TRACK/
MARK SETUP. The track/mark setup menu appears.
TRACK/MARK SETUP
MARK SHAPE
LINE TYPE MARK COLOR TRACK COLOR MARK SIZE PLOT PLOT INTVL
RED YEL GRN LBLU PPL BLU WHT RED YEL GRN LBLU PPL BLU WHT
L S ON OFF TIME DIST AUTO 00 10
00.10nm
Hollow own ship mark means track plotting has been stopped.
Track plotting stopped
Own ship mark
Track not recorded is not plotted.
Track plotting restarted
Figure 5-2 Own ship mark appearance
when track is not being recorded/track is
being recorded

5.2 Changing Track Color

Track can be displayed in red, yellow green, light blue, purple, blue or white. It can be use­ful to change track color on a regular basis to discriminate between previous day's track, past track, etc.
: Cursor ESC: Esc
Figure 5-1 Track/mark setup menu
3. Operate the Cursor Pad to select PLOT.
4. Press s to select OFF.
5. Press the MENU key to close the menu.
H
appears on the screen, and own ship mark becomes hollow . (Note that the "H" icon does not appear on the sounder, data, graphic or highway display.) To resume recording and plotting, display "PLOT ON" at step 4 in the above procedure.
l. Press the MENU key.
2. Press the [2] key.
3. Operate the Cursor Pad to select TRACK COLOR.
4. Press t or s to select color desired.
5. Press the MENU key to close the menu.

5.3 Erasing All Track

Y ou can erase all track. Be absolutely sure you want to erase all track; erased track cannot be restored.
1. Press the MENU key.
2. Press the [3] key to select ERASE TRACK/ MARK.
5-1
ERASE TRACK/MARK
MARK ERASE
TRACK ERASE
MARK USED TRACK USED
: Cursor : Go ESC: Esc
NO YESNO
NO YES
15/100 PT 1200/2000 PT
Figure 5-3 Erase track/mark menu
3. Operate the Cursor Pad to select TRACK ERASE.
DIST: Plots ship's track only when the boat is moving, thus no track is saved to the memory when your boat is dead in water. AUTO: Changes with chart scale auto­matically.
5. For time or distance, enter interval de­sired.
6. Press the MENU key to close the menu.

5.5 Smoothing Track

4. Press s to select YES. You are asked if you are sure you want to erase all track.
Are you sure?
ENT: YES ESC: NO
5. Press the ENT key .
6. Press the MENU key.
5.4 Changing Track Plotting
Interval
In drawing the track, first the ship's position (fed from the GPS plotter) is stored into this unit's memory at an interval of time, distance or automatic recording. (The default setting is l0 minutes.) A shorter interval provides bet­ter reconstruction of the track, but the storage time of the track is reduced. When the track memory becomes full, the oldest track is erased to make room for the latest.
1. Press the MENU key.
Even when the vessel is sailing a straight line the track shown on the display looks crooked. This is due to signal variation. To smooth out this irregularity , change the smoothing factor.
1. Press the MENU key.
2. Press the [0] key.
3. Press the [2] key.
PLTR SETUP NAVAID SCALE SMOOTHING SPD AVERAG BEARING MAG CALIB
EVNT METHOD
POSITION
DISP
Chain: Sec LOP CALIB
: Cursor ESC: Esc
OWN LC DE ALL SCALE RANGE 00 (00~15) 00 min TRUE MAG AUTO MAN
06.3°W 00.0°E EVENT MARK
L/L LOP
LC DE 7970: 11-26 +000.0 µs +000.0 µs
: E/W, +/-
2. Press the [2] key to select TRACK/ MARK SETUP.
3. Operate the Cursor Pad to select PLOT INTVL.
4. Operate the Cursor Pad to select interval desired; AUTO, TIME or DIST on the PLOT INTVL line.
TIME: Plots ship's track at desired time interval, from 0 to 99 min 59 sec.
5-2
Figure 5-4 Plotter setup menu
4. Operate the Cursor Pad to select Smooth­ing.
5. Enter smoothing with numeric keys.
6. Press the ENT and MENU keys to regis­ter selections.

MARKS

6.1 Entering Marks

You can inscribe marks on the plotter display to denote important locations; for example, buoy , fishing point, wreck, etc. Further, marks can be connected with lines to depict an area such as a hot fishing spot.
100 marks may be entered. When the mark memory is full the oldest mark is deleted to make room for the latest.
Entering a mark at ship's position
1. Press the CURS key to turn off the cur­sor.
2. Press the EVENT MOB key. The mark currently selected on the TRACK/MARK SETUP menu appears at own ship's posi­tion.
Entering a mark at cursor intersection
1. Press the CURS key to turn on the cursor.
2. Press the EVENT MOB key. The mark currently selected on the TRACK/MARK SETUP menu appears at the cursor inter ­section.

6.2 Entering Event Marks

The event mark denotes a point of interest at own ship’s position.
100 event marks may be entered. When the event mark memory is full the oldest event mark is deleted to make room for the latest.
SYSTEM MENU
1. SELF TEST
2. PLTR SETUP
3. SOUNDER SETUP
4. UNIT SETUP
5. SENSOR SETUP
6. NMEA SETUP
7. GPS SETUP
8. DGPS SETUP
9. CHART POSN CALIB
: Cursor ENT: Sel ESC: Esc
Figure 6-1 System menu
3. Press the [2] key to select PL TR SETUP.
PLTR SETUP NAVAID SCALE SMOOTHING SPD AVERAG BEARING MAG CALIB
EVNT METHOD
POSITION
DISP
Chain: Sec LOP CALIB
: Cursor ESC: Esc
OWN LC DE ALL SCALE RANGE 00 (00~15) 00 min TRUE MAG AUTO MAN
06.3°W 00.0°E EVENT MARK
L/L LOP
LC DE 7970: 11-26 +000.0 µs +000.0 µs
: E/W, +/-
Figure 6-2 Plotter setup menu
4. Press or to select EVNT METHOD.
5. Press t to select EVENT.
Enabling entry of an event mark
To enable entry of an event mark do the fol­lowing:
1. Press the MENU key.
2. Press the [0] key to select SYSTEM MENU.
6. Press the MENU key.
Entering an event mark
Press the EVENT MOB key. An event mark is entered at own ship's position.
6-1

6.3 Erasing Individual Marks

Changing line type
Marks can be erased individually or collec­tively. How to erase marks collectively will be discussed later.
1. Press the CURS key to turn on the cursor.
2. Operate the Cursor Pad to place the cur­sor on the mark to erase.
3. Press the CLR key.

6.4 Changing Mark Attributes

Changing mark shape
1. Press the MENU key.
2. Press the [2] key to select TRACK/ MARK SETUP.
TRACK/MARK SETUP
MARK SHAPE
Marks can be connected with solid or dashed lines. This is useful for denoting an important area such as a good fishing spot. T o select line type and connect marks do the following:
1. Press the MENU key.
2. Press the [2] key to select TRACK/ MARK SETUP.
3. Press or to select LINE TYPE.
4. Press t or s to select any line type other than "single dot," the default setting, which provides for no connection of marks.
5. Press the MENU key.
To enter marks without connecting them, se­lect "single dot" in step 4 in the above proce­dure.
Changing mark color
LINE TYPE MARK COLOR TRACK COLOR MARK SIZE PLOT PLOT INTVL
: Cursor ESC: Esc
RED YEL GRN LBLU PPL BLU WHT RED YEL GRN LBLU PPL BLU WHT
L S ON OFF TIME DIST AUTO 00 10
00.10nm
Figure 6-3 Track/mark setup menu
3. Press to select MARK SHAPE.
4. Press t or s to select shape desired.
5. Press the MENU key.
Marks can be displayed in red, yellow , green, light blue, purple, blue or white.
1. Press the MENU key.
2. Press the [2] key to select TRACK/ MARK SETUP.
3. Press or to select MARK COLOR.
4. Press t or s to select color desired.
5. Press the MENU key.
Changing mark size
Y ou may change the size of marks to small or large.
1. Press the MENU key.
2. Press the [2] key to select TRACK/ MARK SETUP.
3. Press or to select MARK SIZE.
6-2
4. Press t or s to select Large or Small.
5. Press the MENU key.

6.5 Entering the MOB Mark

The MOB mark functions to mark man over­board position. The range and bearing to the MOB position are continuously updated on the display, to help you navigate to the MOB position.
Entering the MOB mark
Cancelling MOB position as destination
1. Press the GOTO key.
SELECT GOTO MODE
WPT List EVENT List ROUTE List
Cursor/Route plan
1. Press the EVENT MOB key over 3 sec­onds. The MOB mark appears at own ship's position along with a flag. The MOB position is automatically selected as destination and the range and bearing from own ship to the MOB position are displayed.
Saved MOB position !!
   
32˚ 59.660’N
130˚ 00.066’E
   
Begin navigation to the MOB waypoint Are you sure?
ENT: Yes ESC: No
Figure 6-4 MOB position display
2. Press the MENU key. (If an autopilot is connected press the ENT key.)
Destination MOB mark
Range, bearing
"flag"
M
00
ENT: Sel CLR: Release ESC: Cancel
Figure 6-6 GOTO selection screen
2. Press the CLR key. You are asked if you want to cancel MOB position as GOTO.
RELEASE GOTO
ENT: Yes ESC: No
3. Press the ENT key .
4. Press the MENU key.

6.6 Erasing All Marks

All marks can be erased collectively. Be ab­solutely sure you want to erase all marks; they cannot be restored once erased.
1. Press the MENU key.
2. Press the [3] key to select ERASE TRACK/MARK.
Man overboad
Bearing and range to MOB position
Current
position
WP
MOB 120.0° 0.8nm CSE 180.0° SPD 16.8kt 2D DEP 110m TMP 16.0°C 14:50 POS 34°26.345'N 135°41.232'E
Figure 6-5 MOB concept
To erase the MOB mark, clear the memory as shown in paragraph 14.9 Clearing the Memory on page 14-7.
ERASE TRACK/MARK
MARK ERASE
TRACK ERASE
MARK USED TRACK USED
NO YES
NO YES
0/100 PT 0/2000 PT
Figure 6-7 Erase track/mark menu
3. Operate the Cursor Pad to select MARK ERASE.
6-3
3. Operate the Cursor Pad to select MARK ERASE.
4. Press s to select YES. You are asked if you are sure to erase all marks.
Are you sure?
ENT: YES ESC: NO
5. Press the ENT key .
6. Press the MENU key.

6.7 Radar Target Mark

If a radar which has the radar target position output function is connected to the GP­1610CF, radar target position can be output by the radar and marked on the screen of the GP-1610CF with the radar target mark .
The following FURUNO radars can output target position data:
ledoMelbaCerudecorpnoitcennoCradarnonoitarepO
2-KRAM148/148/128LEDOM
168/158LEDOM
118-DMF
2-KRAM1491/1381LEDOM .yek]FFOMH[ehtsserP
2491/2391/2381LEDOM .yek]LLT[ehtsserP
1607/R1407/1407-RF
2-KRAM5251/0151/5051-RF
1528/1118/1508-RF
0108-DMF
050-2100FPS6A-JM
ro)m5,P6-P6(
001-2100FPS6A-JM
)m01,P6-P6(
ehtfoenotceleS
:selbacgniwollof
050-1100FPS6A-JM
)m5,P4-P6(
001-1100FPS6A-JM
)m01,P4-P6(
050-2100FPS6A-JM
)m5,P6-P6(
001-2100FPS6A-JM
)m01,P6-P6(
noitcennocehtekaM
.radardnaVANneewteb
.sdnoces
.noitagivan
ehtotelbacehttcennoC.1
fodnerehtoehtnetrohS.2
.yrassecensaelbaceht
rotcennocHXehtredloS.3
deilppus(6971-30.yssa
.elbacehtot)radarhtiw
.lortnoc
.lortnoc
.yek]FFOMH[ehtsserP
ehtnwoddlohdnasserP
owttuobayek]RETNE[
]TLPTGRT[ehtsserP
])LLT(MRV[ehtsserP
This function requires gyrocompass or bear­ing sensor connection at the radar.
6-4

WAYPOINTS, ROUTES

7.1 Entering Waypoints

In navigation terminology, a waypoint is a particular location on a voyage whether it be a starting, intermediate or destination point. A waypoint is the simplest piece of informa­tion the GP-1610CF requires to get you to a destination, in the shortest distance possible.
This unit has 200 waypoints into which you can enter position information. There are four methods by which you can enter a waypoint:
• By ship's position
• Through the waypoint list (manual input of latitude and longitude)
• By event position or MOB position
• By the cursor
Entering a waypoint at own ship's position
1. Press the WPT key. The menu for selec-
tion of waypoint entry method appears.
SELECT WPT MODE
Own Position
Cursor WPT List Event to WPT
ENT
: Sel ESC: Cancel
Figure 7-1 Display for selection of
waypoint entry method
2. Press or to select Own Position.
3. Press the ENT key. The following display
appears.
WPT at Own Position LAT: LONG: No: MARK: CMNT:
: Cursor : Column ENT: Enter MENU: Sel Mode
32°59.685’N 130°00.177’E
001
_ _
970125 12
The waypoint number shown is the young­est empty waypoint. If you want to enter the waypoint under that number go to step
5. To change the number go to step 4.
4. Enter waypoint number with numeric keys.
5. To select mark shape, press . (If not se­lected the waypoint will be marked by a yellow octagon with waypoint number in its center. Waypoint color cannot be changed.)
SP SP
: Cursor
ENT: Enter ESC: Escape
Figure 7-3 Display for selection of
waypoint symbol
6. Operate the Cursor Pad to select mark desired.
7. Press the ENT key .
ABCDE
Z , - ! ? a b c d e z
ENT: Enter ESC: Escape
FGHIJ / & = # f g h i j
COMMENT: 970125 12
: Cursor
KLMNO 1 2 3 4 5 k l m n o
ENTER
PQRST 6 7 8 9 0 p q r s t
UVWXY
u v w x y
Figure 7-4 Display for entry
of waypoint comment
8. Enter a comment as follows:
a) Operate the Cursor Pad to select desired
character . (Y ou may enter numeric data with the numeric keys. The CLR key deletes last-entered character.)
Figure 7-2 Display for entry of waypoint
at own ship's position
7-1
b) Press the ENT key. c) Repeat a) and b) to complete the com-
ment. A comment may contain 10
characters. d) Select ENTER. e) Press the ENT key.
Entering waypoints by latitude and longitude
1. Press the WPT key.
2. Press the WPT key to select WPT List.
3. Press the ENT key. The waypoint list ap­pears.
9. Press the ENT key . Note 1: If you manually entered a waypoint
number which already exists the following message will appear on the display:
Overwrite?
ENT: YES ESC: NO
In this case you may overwrite the waypoint by pressing the ENT key or press the ESC key to escape.
Note 2: If you do not need to change mark shape or enter a comment, simply press the ENT key at the "WPT at Own Position" dis­play to enter the waypoint in the default waypoint mark shape and youngest empty waypoint number.
WAYPOINT LIST No.
001
002 003
010
: Cursor : Page ENT: Edit CLR: Delete WPT MENU: Sel Mode
LAT/LONG
_ _ ° _ _ . _ _ _ ’ N
_ _ _ ° _ _ . _ _ _ ’ E
_ _ ° _ _ . _ _ _ ’ N
_ _ _ ° _ _ . _ _ _ ’ E
_ _ ° _ _ . _ _ _ ’ N
_ _ _ ° _ _ . _ _ _ ’ E
_ _ ° _ _ . _ _ _ ’ N
_ _ _ ° _ _ . _ _ _ ’ E
COMMENT
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _
Figure 7-6 Sample waypoint list
4. Press or to select vacant waypoint number . To scroll the list, press
.
5. Press the ENT key. The waypoint edit screen appears.
Entering a waypoint by the cursor
1. Press the WPT key. The menu for selec­tion of waypoint entry method appears.
2. Press or to select Cursor.
3. Press ENT key . The display prompts you to select position.
Place cursor on desired location.
ENT: Enter MENU: Sel Mode
Figure 7-5
4. Operate the Cursor Pad to place the cur­sor on position desired.
5. Press the ENT key .
6. Follow steps 4 through 9 in "Entering a waypoint at own ship's position."
Edit = Waypoint: 001
_ _ ˚ _ _ . _ _ _ ’ N _ _ _ ˚ _ _ . _ _ _ ’
Mark: Cmnt:
ENT: Enter : N/S, E/W ESC: Escape
_ _
970125 12
: Cursor : Column
E
Figure 7-7 Waypoint edit screen
6. Enter latitude and longitude. (To switch latitude or longitude polarity, press before entering position data.)
7. Press .
8. Select mark shape, if desired.
9. Press the ENT key.
10. Enter comment, if desired.
7-2
11. Press the ENT key.
12. Press the MENU key twice.
Erasing waypoints through the waypoint list
1. Press the WPT key.
Entering waypoints by event position or MOB position
1. Press the WPT key.
2. Press the WPT key to select Evnt to WPT .
3. Press the ENT key. The event list appears.
EVENT LIST No.
MOB
001
: Cursor : Page change MENU: Sel Mode
LAT 32°59.892’N 32°59.954’N
LONG 129°59.893’E 130°00.236’E
Figure 7-8 Event list
4. Press or to selection position to en-
ter as a waypoint.
5. Press the ENT key.
6. Follow steps 4 through 9 in "Entering a waypoint at own ship's position."
2. Press the WPT key again to select WPT List.
3. Press the ENT key. The waypoint list ap­pears.
4. Press or to select waypoint.
5. Press the CLR key. You are asked if you want to erase the waypoint.
Are you sure?
ENT: YES ESC: NO
6. Press the ENT key .
7. Press the MENU key twice.
7.3 Changing Waypoint
Position
You may change the latitude and longitude position, waypoint shape and comments of waypoints you have entered, through the waypoint list.

7.2 Erasing Individual Waypoints

Waypoints can be erased by the cursor or through the waypoint list.
Erasing waypoints by the cursor
1. Press the CURS key to turn on the cursor.
2. Operate the Cursor Pad to place the cur-
sor on the waypoint you want to erase.
3. Press the CLR key . The waypoint is erased
from both the screen and the waypoint list.
1. Press the WPT key.
2. Press the WPT key again to display the WPT List.
3. Press the ENT key .
4. Press or to select waypoint.
5. Press the ENT key. You are asked if it is alright to overwrite the contents of the waypoint.
Overwrite?
ENT: YES ESC: NO
6. Press the ENT key. The edit display ap­pears. Change data as necessary, follow­ing "Entering waypoints by latitude and longitude."
7-3
Note: If the waypoint selected is part of a route you are asked whether it is alright to edit the waypoint.
ROUTE DELETE
ENT: YES ESC: NO
ROUTE IN USE DELETE?
ENT: YES ESC: NO
When route is in use
7. Press the ENT key to register changes.
8. Press the MENU key to escape.

7.4 Changing Waypoint Mark Size

7.5 Entering Routes

Often a trip from one place to another involves several course changes, requiring a series of route points (waypoints) which you navigate to, one after another. The sequence of waypoints leading to the ultimate destination is called a route. The GP-1610CF can auto­matically advance to the next waypoint on a route, so you do not have to change the desti­nation waypoint repeatedly.
You can store up to 20 routes. A route may consist of 30 points.
A route is constructed using waypoints, there­fore enter waypoints beforehand.
Waypoint mark size can be selected to large or small.
Large Small
01
×
Figure 7-9 Waypoint mark size
l. Press the MENU key.
2. Press the [l] key to show the DISPLAY
SETUP menu.
DISPLAY SETUP
HUE
LAND BRILL LAND COLOR PLACE NAME GRID COLOR COURSE BAR TIME MARK WPT MARK SIZE CURSOR SIZE
1 2
BRT DIM OFF
RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF L S L S
1. Press the MENU key.
2. Press the [4] key to display the route/route list.
ROUTE LIST No.
01
02
: Cursor CLR : Delete Route *: In Use
PTS
6 4
TOTAL
302.11nm
201.27nm
ENT: Sel
ESC: Esc
TTG 41:36 35:52
Figure 7-11 Route list
3. Press or to select route number.
: Cursor ESC: Esc
Figure 7-10 Display setup menu
3. Operate the Cursor Pad to select WPT MARK SIZE.
4. Operate the Cursor Pad to Large or Small.
5. Press the MENU key to register selection.
7-4
4. Press the ENT key.

7.6 Editing Routes

ROUTE LIST 01 LEG: _ _ _ . _ _ _ nm
_ _ _
_ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _
WAYPOINT LIST No. 001 004 007
: Cursor
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
LAT/LONG COMMENT
123°00.000’E 135°27.321’E 132°21.321’E
: Page ESC: Esc
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
23°00.000’N 32°21.154’N 30°19.721’N
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
10MAR97 01_ _ 10MAR97 01_ _ 10MAR97 01_ _
ENT: Sel
Figure 7-12 Route entry screen
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
1. Press the MENU key.
2. Press the [4] key.
3. Press or to select route number.
4. Press the ENT key. You are asked if it is alright to overwrite the contents of the route.
Overwrite?
ENT: YES ESC: NO
5. Press the ENT key .
6. Press t or s to select waypoint.
7. Press the ENT key .
8. Press or to select new waypoint.
9. Press the ENT key .
5. Press the ENT key to enable entry of waypoints.
6. Press or to select waypoint num­ber.
7. Press the ENT key. The waypoint num­ber selected appears at the top of the screen and the cursor shifts to the next column.
8. Repeat steps 6 and 7 to complete the route and press the MENU key twice.
9. To set trial speed, the default setting of which is 10 kts, press until TRIAL TIME appears (after 20th route).
10. Enter speed with numeric keys.
11. Press the ENT key.
12. Press the MENU key.
10. Press the ESC key three times to escape. Note: If the waypoint is currently the desti-
nation, the following alert appears.
ROUTE IN USE OVERWRITE?
ENT: YES ESC: NO

7.7 Erasing Routes

1. Press the MENU key.
2. Press the [4] key. The route/route list ap­pears.
3. Press or to select route number.
4. Press the CLR key.
ROUTE DELETE
ENT: YES ESC: NO
ROUTE IN USE DELETE?
ENT: YES ESC: NO
When route is in use
5. Press the ENT key .
6. Press the MENU key.
7-5

SETTING DESTINATION

8.1 Setting Destination

The GP-1610CF offers four methods by which you can set destination:
• Previously entered waypoint
• Cursor position
• Event position/MOB position
• Route
Setting destination by waypoint
1. Press the GOTO key. The following menu appears.
SELECT GOTO MODE
WPT List
EVENT List ROUTE List Cursor/Route plan
ENT: Sel CLR: Release ESC: Cancel
4. Operate or to select a waypoint.
5. Press the ENT key .
• A dashed light-blue line runs between des­tination selected and own ship's position.
• The range and bearing to the destination appear at the bottom of the display.
01
00
WP001 0° 10nm CSE 10.0° SPD 16.8kt 2D DEP 110m TMP 16.0°C 14:30 POS 34°26.345’N 135°41.232’E
Destination
Course
Own ship’s position
Bearing and range to destination
Figure 8-3 Appearance of display when
destination is selected by waypoint
Figure 8-1 Destination waypoint
selection menu
2. Press the GOTO key again to select WPT List.
3. Press the ENT key. The waypoint list ap­pears.
WAYPOINT LIST No.
001
002 005
: Cursor ENT: Set
*: In Use
LAT/LONG COMMENT
23°00.000’N
123°00.000’E
32°21.128’N
135°27.923’E
30°12.345’N
127°21.293’E
10MAR97 01_ _ 10MAR97 01_ _ 10MAR97 01_ _
: Page change
CLR: Release
MENU: Sel Mode
Setting destination by cursor
1. Press the GOTO key.
2. Press the GOTO key to select Cursor/ Route plan.
3. Press the ENT key .
: Cursor ENT: Set ENT twice: complete MENU: SEL Mode
4. Place cursor on position desired for des­tination.
5. Press the ENT key. To set a single desti­nation, go to step 7. To set more than one destination, go to step 6.
6. Repeat steps 4 and 5 to enter other desti­nations.
7. Press the ENT key .
Figure 8-2 Waypoint list
8-1
Own ship's position is marked as "00." A light­blue line connects own ship with destination, marked with a flag, and it shows the shortest course to the destination. Range and bearing from own ship to the destination appears at the bottom of the screen.
Destination (flag)
Course
Own ship’s
00
WP801 0° 10nm CSE 10.0° SPD 16.8kt 2D DEP 110m TMP 16.0°C 14:30 POS 34°26.345’N 135°41.232’E
position
Bearing and range to destination
Figure 8-4 Destination selected by cursor
Setting a route as destination
1. Press the GOTO key.
2. Press the GOTO to select ROUTE List.
3. Press the ENT key. The route list appears.
ROUTE LIST No.
01
02
: Cursor CLR : Delete Route *: In Use
PTS
6 4
TOTAL
302.11nm
201.27nm
ENT: Sel
ESC: Esc
TTG 41:36 35:52
Setting destination by event position/ MOB position
1. Press the GOTO key.
2. Press the GOTO key to select EVENT List.
3. Press the ENT key. The event list appears.
EVENT LIST No.
MOB
001
: Cursor : Page change ENT: Set CLR: Release MENU: Sel Mode
LAT 32°59.892’N 32°59.954’N
LONG 129°59.893’E 130°00.236’E
Figure 8-5 Event list
Figure 8-6 Route list
4. Press or to select a route.
5. If you want to navigate the waypoints of the route in the order reverse of which they were entered, press the
key . Direction
selected appears at the top of the display .
6. Press the ENT key.
Own ship's position is marked as "00." Light­blue lines run between route waypoints. Range and bearing from own ship to the next destination waypoint appears at the bottom of the screen.
4. Press or to select event position.
5. Press the ENT key . Own ship's position is marked as "00." A light-
blue line connects own ship with destination, marked with a flag, and it shows the shortest course to the destination. Range and bearing from own ship to the destination appears at the bottom of the screen.
8-2

8.2 Skipping Route Waypoints

8.3 Cancelling Destination

There are times when you won't need to fol­low all waypoints in a route. In Figure 8-7, for example, the ship has skipped waypoint
04.
Port
Port
WPT 01
WPT 06
WPT 02
WPT 03
New course
WPT 04
WPT 05
Figure 8-7 How a waypoint is skipped
1. Press the MENU key.
1. Press the GOTO key.
2. Press the CLR key.
RELEASE GOTO
ENT: Yes ESC: No
3. Press the ENT key.
4. Press the MENU key.
2. Press the [4] key. The route/route list ap­pears.
3. Press or to select route number.
4. Press the ENT key. You are asked if it is alright to overwrite route contents.
Overwrite?
ENT: Yes MENU: No
5. Press the ENT key.
6. Operate the Cursor Pad to select waypoint to skip.
7. Press the
key to skip that point tem­porarily . The route waypoint is displayed in light blue.
8. Press the MENU key twice to escape. To restore a waypoint, select it and press the
key to display it in white.
8-3

PLOTTER-RELA TED ALARMS

9.1 Arrival/Anchor Watch Alarm

The arrival alarm informs you that your boat 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 your boat enters the circle. The anchor watch alarm sounds to warn you that your boat is moving when it should be at rest.
When the arrival or anchor watch alarm is violated, the audible alarm sounds and the
alarm icon and the indication ARR or ANCHR appear. You may silence the alarm
with the CLR key . The indication remains on the screen until the cause of the alarm is cor­rected.
Own ship position
Destination
waypoint
: Alarm range
Arrival alarm
2. Press the [5] key to select ALARM SETUP.
ALARM SETUP
ARRIVAL
XTE
SPEED
TEMP
TRIP
: Cursor
ARRIVAL Range ON Range WITHIN Speed WITHIN Temp ON Range
ANCHOR
00.500nm
00.250nm OVER
11.0~15.0kt OVER
+11.0~+15.0°C
0005.00nm
ESC: Esc
OFF
OFF
OFF
OFF
OFF
1/2
Figure 9-2 Alarm setup menu
3. Press to select ARRIVAL.
4. Press s or t to select ARRIVAL or AN­CHOR.
5. Press to send the cursor to the second line (Range).
6. Key in the alarm range desired. The avail­able range is 00.001 to 99.999 miles.
7. Press the ENT key .
Range set
Own ship position
Destination
waypoint
: Alarm range
Anchor watch alarm
Figure 9-1 How the arrival and
anchor watch alarms work
The arrival and anchor watch alarms cannot be activated together. You may activate one as follows:
1. Press the MENU key.
8. Press the MENU key.
When a destination is set and the arrival alarm is activated a red dashed circle circumscribes the destination waypoint and it denotes arrival alarm range.
0
Arrival alarm range
Destination
Figure 9-3 Arrival alarm range
9-1
9.2 XTE (Cross Track Error)

9.3 Speed Alarm

Alarm
The XTE alarm warns you when your boat is off its intended course.
When your boat goes off course by the alarm range set, the audible alarm sounds and the
alarm icon and the indication XTE appears. You may silence the alarm with the CLR key.
The indication remains on the screen until the boat is put back on course.
Starting point
Own ship's position
Range set
: Alarm range
Figure 9-4 How the XTE alarm works
1. Press the MENU key.
Destination
The speed alarm sounds when your boat's speed is within (or over) the alarm range set.
When the alarm setting is violated, the audible alarm sounds and the alarm icon and the indication SPEED appears. You may silence
the alarm with the CLR key. The indication remains on the screen until the cause of the alarm is corrected.
1. Press the MENU key.
2. Press the [5] key to select ALARM SETUP.
3. Press ▲ or to select SPEED.
4. Press s or t to select WITHIN or OVER.
5. Press to send the cursor to next line (Speed).
6. Key in speed desired.
2. Press the [5] key to select ALARM SETUP.
3. Press ▲ or to select XTE.
4. Press t to select ON.
5. Press to send the cursor to the fourth line (Range).
6. Key in alarm range desired. The available range is 00.001 to 99.999 miles.
7. Press the ENT key.
8. Press the MENU key.
When a destination is set and the XTE alarm is activated, a pair of dashed red lines denote the XTE alarm range.
0
Destination
7. Press the ENT key.
8. Press the MENU key.

9.4 T rip Alarm

The trip alarm sounds when distance travelled exceeds the trip alarm setting.
When the alarm setting is violated, the audible alarm sounds and the alarm icon indication TRIP appears. You may silence the
alarm with the CLR key. The indication re­mains on the screen until the cause of the alarm is corrected.
1. Press the MENU key.
2. Press the [5] key to select ALARM SETUP.
3. Press ▲ or to select TRIP.
4. Press t to select ON.
and the
9-2
XTE alarm range
Figure 9-5 XTE alarm range
5. Press to send the cursor to the last line (Range).
6. Key in the range desired.
7. Press the ENT key.
8. Press the MENU key.

POSITION-RELATED OPERA TIONS

10.1 Displaying Position in LOPs

Position can be displayed in latitude and lon­gitude, Loran C LOPs or Decca LOPs.
Displaying position in Loran C LOPs
1. Press the MENU key.
2. Press the [0] key to select the SYSTEM
menu.
3. Press the [2] key to select PL TR SETUP.
PLTR SETUP NAVAID SCALE SMOOTHING SPD AVERAG BEARING MAG CALIB
EVNT METHOD
POSITION
DISP
Chain: Sec
LOP CALIB
: Cursor ESC: Esc
Figure 10-1 Pltr setup menu
4. Press or to select POSITION.
5. Press s to select LOP.
6. Press to select DISP.
7. Select LC.
8. Press to select Chain: Sec.
9. Key in Loran C GRI.
10. Key in Loran C slave code.
OWN LC DE ALL SCALE RANGE 00 (00~15) 00 min TRUE MAG AUTO MAN
06.3°W 00.0°E EVENT MARK
L/L LOP
LC DE 7970: 11-26 +000.0 µs +000.0 µs
: E/W, +/-
13. Press the
key to display plus(+) or mi-
nus(-).
14. Key in offset(s).
15. Press the ENT key.
16. Press the MENU key.
Displaying position in Decca LOPs
Follow the procedure in "Displaying position in Loran C LOPs." At step 7 select DE in­stead of LC. Key in chain number and station pair: 1 for R, 2 for G, 3 for P . See Decca Chains in the Appendix for chain number.

10.2 Offsetting GPS Position

You may wish to offset the GPS position to refine position accuracy . First, moor boat at a pier and plot position shown by GP-1610CF on a nautical chart. Then, enter offset.
1. Press the MENU key.
2. Press the [0] key to select the SYSTEM SETUP menu.
3. Press the [7] key. The GPS SETUP menu appears.
GPS SETUP GPS SMOOTHING
Posn
Speed GEODETIC
POS CALIB
UNHEALTH
TIME DIFF
: Cursor : N/S, E/W, +/­ ESC: Esc
000 (000~999) 000 (000~999)
WGS-84 OTHER (002)
00.000’N 00.000’E
RSTR
+09: 00
DISABLED ( _ _ ) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
11. Key in other Loran C slave code.
12. If necessary, press to select LOP
CALIB.
Figure 10-2 GPS setup menu
4. Select POS CALIB.
10-1
5. Consulting a nautical chart, enter offset with numeric keys.
6. Press the ENT key.
7. Press the MENU key.
L
appears on the display. To remove the
L
offset, enter zeroes at step 5 in the above the procedure.

10.3 Selecting Navaid

10.5 Magnetic Variation

The location of the magnetic pole is different from the geographical North pole. This causes a difference between the true and magnetic North direction. The difference is called mag­netic variation, and varies by the observation point on the earth. This unit is programmed with the earth's magnetic variations. However, you may wish to further refine variation for a particular area by entering them manually. If you enter compensation manually, be sure to change it when magnetic variation changes.
If your boat is equipped with other position­fixing equipment you may wish to use its po­sition fixes instead.
1. Press the MENU key.
2. Press the [0] key.
3. Press the [2] key.
4. Operate the Cursor Pad to select NA VAID.
5. Operate the Cursor Pad to select OWN (internal GPS), LC (Loran C), DE (Decca), or ALL. (Select ALL for mul­tiple navaid connection. In this case posi­tion data is read in the order of GPS, Loran C, Decca, etc.)
6. Press the MENU key.
10.4 Displaying True or
Magnetic Bearings
1. Press the MENU key.
2. Press the [0] key.
3. Press the [2] key.
4. Operate the Cursor Pad to select MAG CALIB.
5. Operate the Cursor Pad to select AUTO or MAN.
6. If you selected MAN in step 5, enter mag­netic variation with the numeric keys.
7. Press the ENT key followed by the MENU key.
Y ou may display bearing relative to true North (true bearing) or relative to magnetic North (magnetic bearing).
1. Press the MENU key.
2. Press the [0] key.
3. Press the [2] key.
4. Operate the Cursor Pad to select BEAR­ING.
5. Operate the Cursor Pad to select TRUE or MAG.
6. Press the MENU key.
10-2

10.6 Offsetting Chart Position

In some instances chart position may be off by a few minutes. For example, the position of the ship is shown to be at sea while it is in fact moored at a pier . You can compensate for this error as follows:
1. Press the MENU key.
2. Press the [0] key to select SYSTEM SETUP.
3. Press the [9] key to select CHART POSN CALIB.
CHART POSN CALIB
POSN CALIB OFF ON
GEODETIC: TOKYO
ENT: Ent ESC: Esc
Datum of FURUNO chart card inserted. Does not appear when using NAVIONICS chart card.
Figure 10-3 Chart position
calibration menu
4. Press s to select ON.
Set cursor on correct position.
ENT: Set ESC: Esc
5. Set the cursor on correct position.
6. Press the ENT key. The calibration val­ues appear.
7. Press the MENU key.
The chart offset icon
appears on the dis-
play . To remove the correction, select OFF in step 4 of the above procedure.
10-3

GPS OPERATIONS

11.1 GPS Setup Menu

The GPS setup menu provides for the setting up of GPS-related operations.
1. Press the MENU key.
2. Press the [0] key.
3. Press the [7] key.
GPS SETUP GPS SMOOTHING
Posn
Speed GEODETIC
POS CALIB
UNHEALTH
TIME DIFF
: Cursor : N/S, E/W, +/­ ESC: Esc
Figure 11-1 GPS setup menu
000 (000~999) 000 (000~999) WGS-84 OTHER (002)
00.000’N 00.000’E
RSTR
+09: 00
DISABLED ( _ _ ) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Latitude
Raw position fix after smoothing
Longitude
Figure 11-2 GPS position smoothing
GPS SPEED SMOOTHING: During posi­tion fixing, ship's velocity (speed and course) is directly measured by receiving GPS satel­lite signals. The raw velocity data 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. "000" is the default set­ting; increase the setting if the GPS speed changes greatly.
Speed(kt)
GPS SETUP menu description
GPS POSITION SMOOTHING: 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. Note however that too high a setting slows response time to change in latitude and longitude. This is especially noticeable at high ship's speeds. "000" is the default setting; in­crease the setting if the GPS fix changes greatly.
Raw position fix after smoothing
Time
Figure 11-3 GPS speed smoothing
GEODETIC: Select the geodetic chart sys­tem you are using. WGS-84 (standard GPS chart system) can be directly selected. For other charts, select OTHER and enter chart number referring to Geodetic Chart List in the Appendix. For sake of accuracy , the chart sys­tem selected here should be the same as that of the cart card used. (See page 10-3.)
POS CALIB: You may apply an offset to position generated by the internal GPS re­ceiver, to further refine position accuracy . For further details, see "10.2 Offsetting GPS Po­sition."
11-1
UNHEALTH: Every GPS satellite is broad­casting abnormal satellite number(s) in the Almanac. Using this information, the GPS receiver eliminates any malfunctioning satel­lite from the GPS satellite schedule. Once the malfunctioning satellite is returned to on-line status it is automatically restored to the satel­lite schedule when the Almanac is received. In some instances however the Almanac may not contain information which announces that a satellite is now back on line. If you hear of this through another source, you can manu­ally restore the satellite to the satellite sched­ule. Conversely, you can manually disable a healthy satellite if you hear it is unhealthy.

1 1.2 Speed Averaging

Calculation of ETA and TTG is based on an average ship's speed over a given period. If the period is too long and the ship's speed is changed suddenly, calculation error will re­sult. Speed averaging may be increased or decreased to offset calculation error. The de­fault setting is 00.
1. Press the MENU key.
2. Press the [0] key.
3. Press the [2] key to display the PLOTTER SETUP menu.
To restore or disable a satellite, select RSTR or DISABLED on the UNHEALTH line and then enter satellite number.
TIME DIFF (using local time): GPS uses UTC time. If you want to use local time, en­ter time difference between local time and
UTC time here. The key serves to desig­nate plus or minus time. See the World Time Standards chart on page A-3 for time differ­ences.
PLTR SETUP NAVAID SCALE SMOOTHING SPD AVERAG BEARING MAG CALIB
EVNT METHOD
POSITION
DISP
Chain: Sec LOP CALIB
: Cursor ESC: Esc
OWN LC DE ALL SCALE RANGE 00 (00~15) 00 min TRUE MAG AUTO MAN
06.3°W 00.0°E EVENT MARK
L/L LOP
LC DE 7970: 11-26 +000.0 µs +000.0 µs
: E/W, +/-
Figure 11-4 Pltr setup menu
4. Operate the Cursor Pad to select SPD AVERAG.
11-2
5. Enter averaging with numeric keys.
6. Press the ENT and MENU keys to regis­ter selection.

OPTIONAL EQUIPMENT SETUP

12.1 Selecting Sensors

The sensor setup menu provides for selection and calibration of speed and temperature sen­sors (optional equipment).
1. Press the MENU key.
2. Press the [0] key.
3. Press the [5] key.
SENSOR SETUP
SPD SENSOR
TEMP SENSOR SPD CALIB TEMP CALIB DEPTH CALIB
: Cursor
ESC: Esc
STW OWN +00% (-50~+50) +00.0 °C +0.0 m
SOG
NMEA
:+/-

12.2 Selecting Autopilot, Remote Display

The NMEA menu provides for selection of autopilot or remote display and its format.
1. Press the MENU key.
2. Press the [0] key.
3. Press the [6] key.
NMEA SETUP
FORMAT
EXT DEVICE
: Cursor ESC: Esc
Figure 12-2 NMEA setup menu
183V1.5
REM
183V2.0 PILOT
Figure 12-1 Sensor setup menu
SENSOR SETUP menu description
SPD SENSOR: Select speed input source; navaid or internal.
TEMP SENSOR: Select device (option) which feeds temperature data; external or in­ternal.
SPD CALIB: Enter offset to correct speed data.
TEMP CALIB: Enter of fset to correct water temperature data.
DEPTH CALIB: Enter offset to correct depth.
4. Select format of connected external de-
vice; NMEA format 0183V1.5 or 0183V2.0.
5. Select type of external device connected;
REMote display or autoPILOT.
6. Press the MENU key to register selec-
tions.

12.3 Setting up DGPS Beacon Receiver

With connection of an external DGPS bea­con receiver (option), GPS position accuracy becomes within 5 to 10 meters.
The specifications of the DGPS beacon re­ceiver should be set on the DGPS setup menu.
1. Press the MENU key.
2. Press the [0] key.
3. Press the [8] key.
12-1
DGPS SETUP
DGPS
RTCM VER BYTE FORM FIRST BIT PARITY BIT STOP BIT BIT RATES BAUD RATES
: Cursor
ENT: Sel ESC: Esc
ON
1.0 8-6 MSB EVEN 1 7 300 2400
OFF
2.0 8-8
LSB
ODD
2
8
600
4800
NONE
1200
9600
Figure 12-3 DGPS setup menu
4. Display DGPS ON and set other items according to specifications of beacon re­ceiver.
5. Press the MENU key to register selec­tions.
12-2

CUSTOMIZING THE DISPLAY

13.1 Plotter Display Marker Attributes

The various markers and items shown on the plotter display can be turned on/off and their color changed on the DISPLA Y SETUP menu. The markers which can be changed are as fol­lows:
• Background color (light-blue or black)
• Grid color and grid on/off
• Course bar color and course bar on/off
• Time mark color and time mark on/off
Course
bar
T07
T08
Figure 13-1 Time mark and course bar
• Waypoint mark size
• Cursor size
Large Small
Own ship mark
Time mark
l. Press the MENU key.
2. Press the [l] key to show the DISPLAY SETUP menu.
DISPLAY SETUP
HUE
LAND BRILL LAND COLOR PLACE NAME GRID COLOR COURSE BAR TIME MARK WPT MARK SIZE CURSOR SIZE
: Cursor ESC: Esc
1 2
BRT DIM OFF
RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF RED YEL GRN BLU PPL WHT OFF L S L S
Figure 13-3 Display setup menu
3. Operate the Cursor Pad to select item among HUE, GRID COLOR, COURSE BAR, TIME MARK, WAYPOINT SIZE or CURSOR SIZE.
4. Operate the Cursor Pad to select option desired.
5. Press the MENU key to register selec­tions.
Cursor height and breadth as large as screen.
Figure 13-2 Cursor size

13.2 Chart Attributes

You may select the color and brightness of the land on a chart and turn/off place-name display as follows:
l. Press the MENU key.
2. Press the [l] key to show the DISPLAY SETUP menu.
3. Operate the Cursor Pad to select item among LAND BRIGHT , LAND COLOR, or PLACE NAME.
4. Operate the Cursor Pad to select option desired.
5. Press the MENU key to register selec­tions.
13-1
13.3 Unit of Distance
13.4 Chart Range or Scale
Measurement
You may display range in nautical miles, ki­lometers or statute miles as follows:
1. Press the MENU key.
2. Press the [0] key to select SYSTEM MENU.
3. Press the [4] key to display the UNIT SETUP menu.
UNIT SETUP
DISTANCE
DEPTH TEMP
: Cursor ESC: Esc
nm
m
°C
km ft °F
Figure 13-4 Unit setup menu
4. Operate the Cursor Pad to select Distance.
5. Operate the Cursor Pad to select nm, km, or sm.
sm fa
Indication
This unit can show either nautical miles or scale whenever the ZOOM IN or ZOOM OUT key is pressed.
1. Press the MENU key.
2. Press the [0] key.
3. Press the [2] key.
PLTR SETUP NAVAID SCALE SMOOTHING SPD AVERAG BEARING MAG CALIB
EVNT METHOD
POSITION
DISP
Chain: Sec LOP CALIB
OWN LC DE ALL SCALE RANGE 00 (00~15) 00 min TRUE MAG AUTO MAN
06.3°W 00.0°E EVENT MARK
L/L LOP
LC DE 7970: 11-26 +000.0 µs +000.0 µs
6. Press the MENU key.
: E/W, +/-
: Cursor ESC: Esc
Figure 13-5 Plotter setup menu
4. Operate the Cursor Pad to select SCALE.
5. Operate the Cursor Pad to select SCALE or RANGE.
6. Press the MENU key.
13-2

MAINTENANCE & TROUBLESHOOTING

14.1 Maintenance

WARNING
Regular maintenance is essential for good per­formance. A maintenance program should be established and should at least include the items listed in Table 14-l.
14-1 Recommended maintenance program
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Do not open the equipment.
Hazardous voltage which can cause electrical shock, burn or serious injury exists inside the equipment. Only qualified personnel should work inside the equipment.
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14.2 Replacement of Fuse, Battery

The fuse on the power cable of the display unit protects the system from reverse polarity of the ship's mains and equipment fault. If the fuse blows, find the cause before replacing the fuse. Use only a 3A fuse. Using the wrong fuse will damage the unit and void the warranty.
14-1
A battery installed on a circuit board inside display unit preserves data when the power is turned off. The life of the battery is about three years. When the battery voltage is low the battery icon
appears on the display. When this happens, contact your dealer to request replacement of
the battery.
Note: Before replacing a
epyTrebmunedoC
yrettaBmuihtiL2TS2F-0542RC594-331-000
battery, save data into a memory card. (See page 14-6.)

14.3 Simple Troubleshooting

Below are simple troubleshooting procedures which the user can follow to restore normal op­eration.
Table 14-2 Simple troubleshooting
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Table 14-2 Simple troubleshooting (con't)
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14.4 Error Messages

The GP-1610CF displays the following error messages to alert you to possible trouble:
Table 14-3 Error messages
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14-3

14.5 Diagnostic Tests

Panel test
Memory, I/O port test
This test conduct a general check of the dis­play unit and the antenna unit. The unit dis­plays the check results for each device or component checked as OK or NG (No Good).
1. Press the MENU key.
2. Press the [0] key to select SYSTEM MENU.
3. Press the [1] key to select SELF TEST.
4. Press the [2] key to select MEMORY, I/O PORT TEST.
MEMORY, I/O PORT TEST ROM RAM VRAM Battery SIO (GPS) SIO (NMEA) SIO (DGPS) MEMORY CARD
OK OK OK OK OK OK* OK* OK*
This test checks the keys for proper opera­tion.
1. Press the MENU key.
2. Press the [0] key to select SYSTEM MENU.
3. Press the [1] key to select SELF TEST.
4. Press the [3] key to select PANEL TEST. The following display appears.
PANEL TEST
Cursor Pad
SPEED TEMP
: ESC: Esc
If applicable; NG for no connection
*
or error.
0.0kt +100.0°C
Figure 14-1 Sample memory,
I/O port test results
5. The test runs continuously. To return to the self test menu, press the MENU key.
Program No.
02522530**
Press ESC key 3 times to escape
Figure 14-2 Panel test
5. Press any key except the POWER key. The key's location on the display lights in white if the key is functioning properly. (The POWER key cannot be tested.)
6. To escape, press the ESC key three times.
14-4
Display test
1. Press the MENU key to display the main menu.
2. Press the [0] key to select SYSTEM MENU. The system menu appears.
3. Press the [1] key to select SELF TEST.
5. Check that colors are properly displayed. Press the ENT key to change test pattern.
6. To escape, press the ESC key three times.

14.6 GPS Monitor Display

4. Press the [4] key to select DISPLAY TEST.
DISPLAY TEST
WHT GRN BLU BLK
ENT: Change Mode ESC: Esc
RED
WHT
RED
GRN
The GPS monitor display provides informa­tion on all GPS satellites.
1. Press the MENU key.
2. Press the [0] to select SYSTEM MENU.
3. Press the [1] key twice to display the GPS monitor display.
Indicated at 3D mode
GPS MONITOR DISPLAY
AZM
278 042 100 050 303 220 095 142
Alt ——— m
SNR
40 70 40 60 30 50 35 60
ESC: Esc
Status of DGPS Rx data
Status of DGPS REF station
GPS Program no.
Fix Mode DOP Data Rx Ref Sta Program No. Rx Status No. 23 12 29 27 1 17 26 5
2D
1
: — — : — — 48501030**
ELV
77 16 30 50 21 18 27 52
BLU
BLK
Figure 14-3 Display test pattern
**: Version no.
Figure 14-4 Sample GPS monitor display
GPS monitor display description
Fix Mode: This shows current position-fix­ing mode; 2D or 3D (D2D or D3D appears in DPGS mode).
Alt: Shows present altitude of GPS receiver when position fixing mode is set to 3D.
DOP: This is the index for position-fixing accuracy. The lower the value the higher the accuracy . If the index exceeds 20, position fix­ing may not be possible.
14-5
Data Rx: Shows DGPS beacon receiver is normal or abnormal. T wo dashes appear when no DPGS beacon receiver is connected.
Ref Sta: Shows status of DPGS transmitting station. Two dashes appear when no DPGS beacon receiver is connected.
Program No.: Shows the program version number of the unit.
4. Enter ship's speed to use for the demon­stration.
5. Press the ENT key to start the demonstra­tion display. The unit checks itself for proper operation and then the plotter dis­play appears. DEMO and 3D (or 2D) are alternately displayed in the data window at the bottom of the screen when the unit is in the demonstration mode.
Rx Status: This section shows elevation angle, azimuth and signal levels of GPS sat­ellites.

14.7 Demonstration Display

The demonstration 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 set destination, enter marks, operate the video sounder, etc.
1. Turn on the power while pressing and holding down the ENT key . Release hold of the keys when the following display appears.
DEMO SETTING
6. To return to the normal mode, turn of f the power and then turn it on while pressing and holding down the ENT key.
Note: When the memory is cleared while in the demonstration mode, the unit starts up in the normal mode.
14.8 Memory Card Operations
(for technicians)
Before changing the internal battery , save the contents of the memory (waypoint, event, mark, track, route data and menu setting data) to a memory card (256 K bytes).
Saving data
1. Press the MENU key.
BASE POSITION
_ _ ° _ _ . _ _ _ ’N _ _ _ ° _ _ . _ _ _ ’E
SPEED:
00.0kt
: Cursor : Column ENT: Enter : N/S, E/W
Figure 14-5 Demo setting screen
2. Key in latitude and longitude for base po­sition. If necessary, press
to switch from North latitude to South latitude or vice versa, or from W est longitude to East longitude or vice versa.
3. Press .
2. Press the [7] key to select MEMORY SAVE/LOAD.
3. Press ▲ to select SAVE MEMORY.
MEMORY SAVE/LOAD
SAVE MEMORY
LOAD MEMORY
: Cursor : Go ESC: Esc
NO
NO
YES YES
Figure 14-6 Memory save/load menu
4. Press s to select YES.
Overwrite memory card.
ENT: YES ESC: NO
14-6
5. Press the ENT key. The card is formatted
CLEAR MEMORY
ENT: YES ESC: NO
and data are saved. When saving is com­pleted, the cursor moves to NO at the SAVE MEMORY line.
6. Press the MENU key.

14.9 Clearing the Memory

The memory, which stores marks, tracks and settings, can be cleared to start afresh. When this done all default settings are restored.
Note: "Memory card err" appears in the fol­lowing cases:
• No card is set
• Card is write protected
• Card error
Loading data
Data stored on a memory card can be loaded as follows:
1. Press the MENU key.
2. Press the [7] key.
3. Press to select LOAD MEMORY.
4. Press s to select YES. The message win­dow appears.
Overwrite memory.
1. Press the MENU key.
2. Press the [8] key. The following prompt appears.
3. Press the ENT key.
ENT: YES ESC: NO
5. Press the ENT key. After the plotter data is loaded, the system is reset and the ini­tial display appears.
14-7

Specifications

Video Sounder
Frequency 50 kHz and 200 kHz Display range 5, 10, 20, 40, 80, 160, 300 meter (feet, fathoms, and passi/braza
also available) Shift 0 to 300 m Display mode Normal, marker zoom, bottom zoom, bottom-lock zoom, A-scope Alarms Bottom, Fish
GPS Receiver
Receiver format 8 channels all in view Tracking system Parallel Position accuracy Approx. 50 m, 95% of the time, Horizontal dilution of position
(HDOP)
DGPS (option): Approx. 5 m, 95% of the time.
All GPS receivers are subject to degradation of position and
velocity accuracies under the U.S. Department of Defense.
< 4
Plotter Section
Chart projection Mercator (85° latitude or below) Land filled in Arrival, anchor
watch, bottom, fish, speed, trip, water temperature, XTE (cross
track error) Display range 0.14 to 6144 nm (above Equator) Chart display Land filled in Memory capacity Track, 2000 pts; Mark, 100 pts; Event, 100 pts; Waypoint, 200 pts,
Route, 20 routes (30 waypoints/route) Alarms Arrival, Anchor Watch, Speed, Trip, Water Temperature, XTE
I/O Data Format
Input format NMEA 0183, Ver. 1.5 or 2.0 Output format NMEA 0183, Ver. 1.5 or 2.0
Power and Environmental Conditions
Power 10.2 to 31.2 VDC, less than 20 W Useable temperature Display unit: -15°C to +55°C
Antenna unit: -25°C to +70°C
Waterproofing standard Display unit: IEC529 IPX5
Antenna unit: IEC529 IPX6
Dimensions and Weight
Display unit 5.6-inch color TFT LCD, 234 x 320 dots Dimensions and weight Display unit: 182(W) x 188(H) x 102.5(D) mm, 2.0 kg
Antenna unit: 062 x 67(H) mm, 0.1 kg
A-1

World T ime Standards

A-2

Geodetic Chart List

001: WGS84 002: WGS72 003: TOKYO : 004: NORTH AMERICAN 1927 : Mean Value (CONUS) 005: EUROPEAN 1950 : Mean Value 006: AUSTRALIAN GEODETIC 1984 : Australia & Tasmania 007: ADINDAN : 008: : Ethiopia 009: : Mali 010: : Senegal 011 : Sudan 012: AFG : Somalia 013: AIN EL ABD 1970 : Bahrain Is. 014: ANNA 1 ASTRO 1965 : Cocos Is. 015: ARC 1950 : Mean Value 016: : Botswana 017: : Lesotho 018: : Malawi 019: : Swaziland 020: : Zaire 021: : Zambia 022: : Zimbabwe 023: ARC 1960 : 024: : Kenya 025: : Tanzania 026: ASCENSION IS. 1958 : Ascension Is. 027: ASTRO BEACON “E” : Iwo Jima Is. 028: ASTRO B4 SOR. ATOLL : Tern Is. 029: ASTRO POS 71/4 : St. Helena Is. 030: ASTRONOMIC STATION 1952 : Marcus Is. 031: AUSTRALIAN GEODETIC 1966 : Australia & Tasmania 032: BELLEVUE (IGN) : Efate & Erromango Islands 033: BERMUDA 1957 : Bermuda Islands 034: BOGOTA OBSERVATORY : Columbia 035: GAUPO INCHAUSPE : Argentina 036: CANTON IS. 1966 : Phoenix Islands 037: CAPE : South Africa 038: CAPE CANAVERAL : 039: CARTHAGE : Tunisia 040: CHATHAM 1971 : Chatham Is. (New Zealand) 041: CHUA ASTRO : Paraguay 042: CORREGO ALEGRE : Brazil 043: DJAKARTA (BATAVIA) : Sumatra Is. (Indonesia) 044: DOS 1968 : Gizo Is. (New Georgia Is.) 045: EASTER IS. 1967 : Easter Is. 046: EUROPEAN 1950 (Cont’d) : Western Europe 047: : Cyprus 048: : Egypt 049: : 050: : 051: : Greece 052 : Iran 053: : Italy, Sardinia 054: : Italy, Sicily 055: : Norway & Finland 056: : Portugal & Spain 057: EUROPEAN 1979 : Mean Value 058: GANDAJIKA BASE : Republic of Maldives 059: GEODETIC DATUM 1949 : New Zealand 060: GUAM 1963 : Guam Is. 061: GUX 1 ASTRO : Guadalcanal Is. 062: HJORSEY 1955 : Iceland 063: HONG KONG 1363 : Hong Kong 064: INDIAN : Thailand & Vietnam 065: : Bangladesh, India & Nepal 066: IRELAND 1965 : Ireland 067: ISTS 073 ASTRO 1969 : Diego Garcia 068: JOHNSTON IS. 1961 : Johnston Is. 069: KANDAWALA : Sri Lanka 070: KERGUELEN IS. : Kerguelen Is. 071: KERTAU 1948 : West Malaysia & Singapore 072: LA REUNION : Mascarene Is. 073: L. C. 5 ASTRO : Cayman Brac Is. 074: LIBERIA 1964 : Liberia 075: LUZON : Philippines (excl. Mindanao Is.) 076: : Mindanao Is. 077: MAHE 1971 : Mahe Is. 078: MARCO ASTRO : Salvage Islands 079: MASSAWA : Eritrea (Ethiopia) 080: MERCHICH : Morocco 081: MIDWAY ASTRO 1961 : Midway Is. 082: MINNA : Nigeria 083: NAHRWAN : Masirah Is. (0man) 084: : United Arab Emirates 085: : Saudi Arabia 086: NAMIBIA : Namibia 087: MAPARIMA, BWI : Trinidad & Tobago 088: NORTH AMERICAN 1927 : Western United States 089: : Eastern United States 090: : Alaska 091: : 092: : Bahamas, San Salvador Is. 093: :
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
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-3

Icons

Unsuitable chart/chart card not inserted.
Chart scale/range is too small. (Page 4-4)
Suitable chart scale is selected.
(Page 4-4)
Chart position is offset. (Page 10-3)
Chart scale/range is too large.
Chart data is unreliable. (Page 4-4)
L
L
L/L position is offset. (Page 10-1)
Alarm setting violated.
Disappears when reason for alarm is
cleared. (Page 3-7—3-8, 9-1—9-2)
Battery voltage (on pcb) is low. (Page 14-1)
A-4
H
Track is not being recorded. (Page 5-1)

Glossary

GPS Plotter
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
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 stations position this is called GPS error . The DPGS station transmits GPS error data to a beacon receiver which relays the data to the GPS receiver . The GPS receiver uses this data to refine the accuracy of the GPS position (within about 10 meters under ideal conditions).
DGPS stations are strategically located throughout America (including Hawaii and Alaska), Europe, Canada, Bermuda and Bra­zil.
The DGPS (Differential GPS) station trans­mits a beacon signal which contains informa­tion about GPS error. The device which receives the beacon signal is called a beacon receiver.
Cold start
When the GPS receiver is turned on for the very first time, it starts receiving the Alma­nac. This condition is called cold start. In this condition it takes about two minutes to find position. Once the Almanac is stored in the GPS navigator, it takes only about 20 seconds to find position. (The normal start-up condi­tion is called warm start.)
Destination
A destination can be either a single destina­tion waypoint or a series of waypoints lead­ing to the ultimate destination. When you set a destination, the GPS receiver provides range and bearing data to the destination, to help you steer to the destination along the shortest past possible.
Estimated time of arrival (ETA)
The time at which you arrive at a 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.
Magnetic bearing
Bearing relative to magnetic north, with the compass bearing corrected for deviation.
A-5
Magnetic variation offset
Time-to-go (TTG)
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.
NMEA 0183
The National Marine Electronics Association's signal format which enables connection of electronic equipment of different marine elec­tronics manufacturers.
The amount of time necessary to get to a des­tination, maintaining current speed and course.
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
This is the number of miles from starting point to end point in a route.
Trip distance
The distance run from a position.
Trip elapsed time
Plotting interval
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.
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.
The amount of time passed since departing a starting point.
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-6
Video Sounder
Gain
Clutter
Cruising noise, polluted water or plankton can clutter the screen with low signal level ech­oes. This situation can be improved by ad­justing the CLUTTER function.
Detecting area
The detecting area varies with the main beamwidth of the transducer. Objects out of the main beam but close to the beam will be presented less densely, smaller in size and at a lower intensity.
Generally, beamwidth depends on Tx fre­quency; a narrower beamwidth is usually ob­tained at a higher frequency. The beamwidth of the 200 kHz is narrow, thus it has the ad­vantage of higher resolution. On the negative side, fish at the sides of the boat can be over­looked because of the narrow beamwidth.
Gain adjusts the sensitivity of the receiver. It should be set at the point where excessive noise does not appear on the screen. Usually , use a high gain setting for deep water; a low one for shallow water.
Interference, noise
Interference can result from other acoustic equipment which operates on the same fre­quency as your own or electrical equipment on your boat which disturbs the video sounder . In most cases interference can be suppressed with the noise limiter.
Picture advance speed
Picture advance speed defines how fast the video sounder picture moves across the dis­play screen. Several speeds are available in­cluding freeze, which lets you stop advancement to observe the picture more closely.
Display color
A color video sounder displays an echo in a color corresponding to its strength. The GP­1610CF displays echoes in eight colors: red­dish brown, red, orange, yellow, green, light-blue, blue and black.
Frequency
The frequency of the ultrasonic pulse used in video sounders is between 15 and 200 kHz, and the GP-1610CF provides both 50 kHz and 200 kHz. The 200 kHz frequency offers a sharp, clear-cut picture since its beamwidth is narrow. However its use should be limited to shallow waters since its pulse is easily at­tenuated in water. The 50 kHz frequency pro­vides a longer sounding range since its pulse it is not as easily attenuated.
Pulselength
Pulselength is the length of time the transmit­ter in the transducer is turned on each trans­mitted ultrasonic signal. Pulselength is linked with range and thus cannot be selected. The higher the range selected the longer the pulselength.
Pulse repetition rate
The pulse repetition rate defines the number of pulses transmitted within a certain period. The more pulses transmitted the greater the detection accuracy. The pulse repetition rate is automatically changed with range.
Resolution
Resolution is the ability of the video sounder transducer to discriminate returning signals. The higher the transducer frequency the bet­ter the resolution.
A-7
Returning signal
Transducer
The ultrasonic pulse transmitted by the trans­ducer "strikes" intervening objects such as the bottom and fish schools and returns to the transducer. The signal received at the trans­ducer is called the returning signal.
Sounding range
Sounding range refers to the maximum depth observable in the range in use. For example, if the range selected is 0-100 meters, the maxi­mum depth which you can observe is 100 meters. Of course, factors such as bottom com­position and water conditions may affect the sounding range.
A transducer converts an electrical signal into an ultrasonic signal, transmits it in the water and receives any returning signals from inter­vening objects. The higher the frequency of the transducer the sharper its beamwidth. Transducers are generally classified accord­ing to their method of installation. There are three general classes: thru-hull, transom mount or inside hull. The thru-hull type pro­vides the best performance since the trans­ducer protrudes from the hull and the effects of air bubbles and turbulences are minimal.
Water temperature sensor
The water temperature sensor (option) mea­sures water temperature near the transducer. A combination water temperature and speed sensor is also available.
A-8
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