Jrc JLR-7700 Mkii User Manual

JLR-7700MK

GPS NAVIGATOR

INSTRUCTION MANUAL

JLR-7700 MK2GPS Navigator

Foreword

Thank you for choosing the JLR-7700 MK2GPS navigator.

This equipment is a high-performance navigation equipment consisting of a DGPS receiver and navigator, can retrieve the position data using the DGPS receiver to display various navigation information on the display.

●Thoroughly read this instruction manual before commencing the equipment operation.

●We would recommend you to keep this manual nearby the equipment to ensure readily access to it.

It should give you information how to cope with a given situation that may arise during the equipment operation.

1

JLR-7700 MK2GPS Navigator

Before Commencing the Equipment Operation

Graphical Symbols

Several graphical symbols are used in this manual to ensure safety and proper operation of the equipment and to avoid possible human injury or property damage. The symbols and their meanings are shown below. We would recommend you to carefully read the manual to obtain a thorough understanding on these symbols.

WARNING

CAUTION

Examples of the Symbols

Instructions shown with this symbol represent those that can cause death or severe injury, if not observed.

Instructions shown with this symbol represent those that can cause injury or property damage, if not observed.

Electric shock

Don’t Don’t disassemble

Disconnect	Instruction
the power
supply plug

The symbols shown in the mark represent those that require attention (including the potential dangers and warnings).

A tangible instruction is shown in the symbol. For example, the symbol shown to the left indicates that one is likely to get an electric shock.

The circle symbols with a slash from the upper left to the right bottom represent the specific actions prohibited to avoid potential hazards.

A tangible instruction is shown in the symbol. For example, the symbol shown to the left indicates that the disassembly is prohibited.

The black circle symbols represent the obligatory actions or instructions to avoid potential hazards.

A tangible instruction is shown in the symbol. For example, the symbol shown to the left indicates that the power supply plug needs to be disconnected.

2

JLR-7700 MK2GPS Navigator

Precautions Upon Equipment Operation

WARNING

Do not disassemble or modify the equipment. Failure to observe the instruction can cause a fire, electric shock, or equipment failure.

Do not connect or disconnect the power supply cable with a wet hand. Otherwise, you may suffer from an electric shock.

Operate the equipment only at the power supply voltage of 12 or 24 VDC. Failure to observe this instruction can cause a fire, electric shock, or equipment failure.

Do not scratch, damage, or modify the power supply and antenna cable. It may be damaged to cause a fire or electric shock if it is loaded with a heavy item, heated, pulled, or excessively bent.

Do not operate the equipment while steering the vessel. It can cause accidents.

Immediately turn the power off and disconnect the power supply cable if the equipment is generating any smoke or odor, or found overheated. Then, promptly inform our local service agent of the symptom to have it corrected. Prolonged equipment operation under such a condition can cause a fire or electric shock.

POWER

OFF!

3

JLR-7700 MK2GPS Navigator

CAUTION

This equipment is not designed to automatically make judgments on the position data. The navigation information including the position data needs to be judged by the user himself.

Do not allow the equipment to fall or immerse in water.

The equipment can be damaged.

When removing the power and antenna cord, be sure
to remove the cord terminal correctly. If the cord is
pulled, the cord may be damaged resulting in a fire or	No
an electrical shock.

When cleaning the surface, do not use any organic solvent such as thinner or benzine. Otherwise, the painting on the surface may be damaged.

For cleaning the surface, remove the dust and refuse and wipe with clean dry cloth.

Thinner

Benzine

4

JLR-7700 MK2GPS Navigator

Appearance of the Equipment

DGPS Receiver

Navigator

5

JLR-7700 MK2GPS Navigator

Table of Contents

Foreword .............................................................................................................................				1
Before Commencing the Equipment Operation...................................................................				2
Precautions Upon Equipment Operation .............................................................................				3
Appearance of the Equipment .............................................................................................				5
Key Terms............................................................................................................................				9
1.	Equipment Overview ...................................................................................................			11
	1.1	Functions .......................................................................................................................................		11
	1.2	Features .........................................................................................................................................		12
	1.3	Configuration .................................................................................................................................		13
	1.4	Construction ...................................................................................................................................		14
	1.5	General System Diagram...............................................................................................................		17
2. Unit Descriptions and Functions .................................................................................				18
	2.1	Operation Panel of the Navigator ...................................................................................................		18
	2.2	Rear Panel of the Navigator ...........................................................................................................		20
	2.3	DGPS Receiver ..............................................................................................................................		21
3.	Installation ...................................................................................................................			22
	3.1	Installation of the DGPS Receiver .................................................................................................		22
	3.1.1 Selecting the Position for Installation .......................................................................................			22
	3.1.2 Installation Procedure of the DGPS Receiver ..........................................................................			23
	3.1.3 Installation of the DGPS Receiver on the Mast .......................................................................			24
	3.2	Installation of the Navigator ...........................................................................................................		25
	3.2.1 Selection of the Installation Location .......................................................................................			25
	3.2.2 Installation of the Navigator .....................................................................................................			26
	3.3	Installation of the Junction Box ......................................................................................................		28
	3.3.1 How to Mount the Junction Box on the Mast ...........................................................................			28
	3.3.2		Pole Mounting Kit .....................................................................................................................	29
	3.3.3 How to Mount the Junction Box on a Flat Surface ...................................................................			29
	3.4	Connection of the Navigator ..........................................................................................................		30
	3.4.1 Connection of the Power Supply Cable ...................................................................................			30
	3.4.2 Connection of the Grounding Line ...........................................................................................			30
	3.4.3 Connection of the DGPS Receiver ..........................................................................................			31
	3.4.4		Data Output .............................................................................................................................	32
	3.4.5		Relay Output ............................................................................................................................	33
	3.4.6 Connection of the Junction Box ...............................................................................................			34
	3.4.7 Connection of the Waterproof Connectors (2, 6, or 7-pin Connector) ....................................			35
	3.4.8 Connection Cable (Optional Unit) ............................................................................................			35
	3.5	Measures for the Electromagnetic Interference .............................................................................		36
	3.5.1 Checks before the Connection ................................................................................................			36
	3.5.2 Checks before the Navigation ..................................................................................................			36
	3.6	How to Connect the NQA-4251 Buffer Unit (Optional Unit) ...........................................................		37
	3.7	Connection of the NBA-3581A AC Power Supply Unit (Optional Unit) ..........................................		37
	3.8	Connection of the NKG-84 Printer (Optional Unit) .........................................................................		38

6

JLR-7700 MK2GPS Navigator

4. Operation Method .......................................................................................................				39
4.1	Basic Operations ...........................................................................................................................			39
4.1.1 Turning the Power ON and OFF ..............................................................................................				39
4.1.2 Selection of the Language .......................................................................................................				39
4.1.3		Contrast Adjustment ................................................................................................................		39
4.1.4		Backlight Adjustment ...............................................................................................................		40
4.1.5 Return to the SELECT MODE Screen .....................................................................................				40
4.2	Screens ..........................................................................................................................................			40
4.2.1 Display and Operation List for the NWZ-4570B Navigator ......................................................				41
4.3 How to use the Navigation Information Screens ............................................................................				42
4.3.1		NAVIGATE Screen ...................................................................................................................		42
	4.3.1.1		Setting a Destination .........................................................................................................	43
	4.3.1.2 To Change the Leg (Manual Leg Change) ........................................................................			45
	4.3.1.3 To Skip (Omit) a Destination ..............................................................................................			45
	4.3.1.4		Canceling the Route ..........................................................................................................	46
	4.3.1.5 Storing the Current Position (Event) ..................................................................................			46
4.3.2		COURSE DEVIATION IND. Screen .........................................................................................		47
	4.3.2.1 Switching the CDI Meter Scale ..........................................................................................			47
	4.3.2.2 Switching the Display on the Two Bottom Lines ................................................................			47
4.3.3		NAVIGATE AUX Screen ...........................................................................................................		49
	4.3.3.1		Magnetic Compass Correction ..........................................................................................	49
	4.3.3.2 Setting the Display Unit .....................................................................................................			50
	4.3.3.3 Selection of the Data Output Format .................................................................................			50
4.4 PLOT Screen (Tracked Line Screen) .............................................................................................				52
4.4.1		PLOT Screen ...........................................................................................................................		52
	4.4.1.1 Setting the Horizontal Scale Range ...................................................................................			52
	4.4.1.2 Setting the Plot Interval .....................................................................................................			52
	4.4.1.3		Erasing the Tracked Line ...................................................................................................	53
	4.4.1.4		Setting a Destination .........................................................................................................	53
	4.4.1.5 To Store the Current Position .............................................................................................			53
	4.4.1.6 Turning ON and OFF the Display for the Two Bottom Lines ..............................................			53
	4.4.1.7 To Display the Current Position at the Center of the Screen .............................................			53
4.4.2		PLOT AUX Screen ...................................................................................................................		54
	4.4.2.1 Setting the Geodetic System .............................................................................................			54
	4.4.2.2 Setting the DGPS BEACON ..............................................................................................			55
4.5	Registration the Waypoint ..............................................................................................................			56
4.5.1		WAYPOINT Screen ..................................................................................................................		56
4.5.2		WAYPOINT LIST Screen .........................................................................................................		58
	4.5.2.1		Copying the Waypoint Data ...............................................................................................	58
	4.5.2.2		Erasing the Waypoint Data ................................................................................................	58
4.5.3		ROUTE SEQUENCE Screen ...................................................................................................		59
	4.5.3.1 Setting the Route Plan .......................................................................................................			59
	4.5.3.2 Canceling the Route Plan ..................................................................................................			59
	4.5.3.3 Setting the Arrival Alarm Range ........................................................................................			60
	4.5.3.4 Switching between the Automatic and Manual Leg Change .............................................			60
	4.5.3.5 Switching between Great-circle and Rhumb-line ...............................................................			61

7

JLR-7700 MK2GPS Navigator
	4.5.4 Setting the Navigation Alarms .................................................................................................					62
		4.5.4.1 Setting the Arrival Alarm Range ........................................................................................				62
		4.5.4.2 Setting the Off-Course Alarm Range .................................................................................				62
		4.5.4.3 Setting the Anchor Alarm Range .......................................................................................				63
		4.5.4.4 Setting the Boundary Alarm Range ...................................................................................				64
	4.6	SAT STATUS Screen......................................................................................................................				65
	4.6.1		INITIAL SETTING Screen........................................................................................................			65
		4.6.1.1 Setting the Initial Data .......................................................................................................				65
		4.6.1.2 Setting the Loran Station ...................................................................................................				66
		4.6.1.3		Search the Sky ..................................................................................................................		66
		4.6.1.4		Master Reset .....................................................................................................................		66
	4.6.2		GPS AUX Screen ....................................................................................................................			67
		4.6.2.1 Setting the Averaging for Position Display .........................................................................				67
		4.6.2.2 Setting the HDOP Level .....................................................................................................				68
		4.6.2.3 Setting the Antenna Mode .................................................................................................				69
		4.6.2.4 Setting the RAIM Accuracy Level ......................................................................................				70
	4.6.3		Weather Information ................................................................................................................			70
	4.7	Special Functions ..........................................................................................................................				71
	4.7.1		Loran Time Difference Display .................................................................................................			71
		4.7.1.1 Setting the Loran A Station ................................................................................................				71
		4.7.1.2 Setting the Loran C Station ...............................................................................................				72
5.	Maintenance and Inspection .......................................................................................					74
6. Measures for the Operating Environment ...................................................................						75
7.	After-the-sale Services ................................................................................................					76
8.	Disposal ......................................................................................................................					77
	8.1 Disposal of the Equipment .............................................................................................................					77
	8.2 Disposal of the used Battery ..........................................................................................................					77
9.	Specifications				..............................................................................................................	79
Attachments
	Attachment 1				Optional Units .............................................................................................................	82
	Attachment 2-A ........................................................................................................				List of Messages	86
	Attachment 2-B ............................................................................................List of Geodetic Systems					88
	Attachment 2-C ................................................................NMEA0183 Output Sentence Data Format					90
	Attachment 2-D ....................................................................................................				Table of Waypoints	104

8

	JLR-7700 MK2GPS Navigator
	Key Terms
Term	Description
GPS satellites	The term is an acronym that represents the Global Positioning System,
	which is managed by the US Department of Defense to support its navi-
	gation aid system.
DGPS	The term is an acronym that represents the Differential Global Positioning
	System, which is a system to improve the position fixing accuracy by re-
	ceiving the correction data with a beacon receiver for a given GPS satel-
	lite, which is transmitted by the beacon station with a known position.
Position fixing	The term means to obtain the current position of your vessel with the
	GPS or DGPS receiver.
2D (Two-dimensional position fixing)	The term 2D means the position fixing with data obtained from the satel-
	lites and antenna height information.

3D (Three-dimensional position fixing) The term 3D means the position fixing with four or more satellites information only.

HDOP	The term is an acronym that represents the Horizontal Dilution of Preci-
	sion, which reflects the position fixing accuracy. The accuracy increases
	as the value decreases.
	The value increases when the satellites are gathered close to each other,
	and it decreases when the satellites are spattered, which in turn means
	increased accuracy.
Loran time difference display	This is a method to display the current position using the time difference.
	(This method is recommended for the experts who have good knowl-
	edge on the Loran navigation method.)
TD	The term is an acronym that represents the Time Difference, which is equal
	to the time difference between the master and secondary Loran signals.
Route plan	This is the plan that consists of the multiple waypoints registered in the
	order of navigation.
CDI	The term is an acronym that represents the Course Deviation Indicator,
	which includes information on the deviation from a given planned course
	and direction to be steered.
Arrival alarm	The alarm notifies that your vessel has arrived at the preset distance
	from a given destination.

9

JLR-7700 MK2GPS Navigator
Anchor alarm	The alarm notifies that your vessel has drifted away from the destination
	by the preset distance.
Off-course alarm	The alarm notifies that your vessel has been deviated from the planned
	course by the preset distance.
Boundary alarm	The alarm notifies that your vessel has crossed the preset boundary
	line.
Automatic sequencing mode	The function automatically switches the next destination after your ves-
	sel has entered the preset arrival alarm range during the navigation ac-
	cording to the route plan.
Manual sequencing mode	The function allows the operator to manually change to the next leg by
	operating the keys provided on the equipment during the navigation based
	on the route plan.
Default values	The values represent the factory settings.
NMEA 0183	This is a standard specified by an international organization called the
	National Marine Electrical Association (NMEA) to specify the require-
	ments for the communications among various navigator.
Master reset	The function clears all the settings on the equipment and the NNN-4321
	DGPS receiver connected to it. Note that all the settings will be cleared
	if the function is performed.
Initialization	A maximum duration of 2 minutes is required for position fixing if the
	equipment is to be operated for the first time after the installation or the
	master reset function has been performed. The initialization can reduce
	the time for position fixing by manually entering the estimated position,
	time, and antenna height.
Course	A direction obtained by connecting the positions tracked by the vessel,
	which is mainly the direction displayed by the GPS.
Bearing	An angle formed between the local meridian and the orientation of the
	bow during the navigation, which is mainly displayed on the gyro or
	magnetic compass.
RAIM	Acronym of "Receiver Autonomous Integrity Monitoring." This denotes
	the function of judging by GPS receiver itself whether the positioning
	accuracy is within the required accuracy.
WER	Acronym of "Word Error Rate." This indicates the receiving condition of
	the data transmitted from DGPS base stations. The value decreases
	when the condition is better.

10

JLR-7700 MK2 GPS Navigator

1. Equipment Overview

1.1 Functions

The JLR-7700 MK2 is a DGPS navigation equipment configured by connecting the NNN-4331 DGPS receiver to the NWZ-4570B navigator. The DGPS navigation equipment measures the vessel position all the time with very high accuracy using the data provided by the GPS satellites under any geographical or weather conditions and its measurement accuracy can be further enhanced by receiving compensation data from the DGPS beacon station. The equipment displays the following navigation screens and GPS statuses based on data retrieved by the DGPS receiver.

(1) Navigation screens

These screens display the navigation information to go to the destinations that have been preset to the equipment.

Screen name			Remarks
NAVIGATE screen	The current position is displayed with the latitude and longitude. Information required
	for navigation, such as the bearing, distance, course, and speed to the destination,
	can also be displayed. Other navigation information, such as the deviation from the
	preset navigation course, direction to steer, and estimated time of arrival to the
	destination can be displayed. In addition, the Loran time difference can also be
	displayed as well.
COURSE	The course deviation can be graphically shown on the display by selecting the CDI on
DEVIATION IND.	the NAVIGATE screen. In addition, the direction to steer will also be displayed.
screen
PLOT screen	The planned navigation course and actual navigation tracked by your vessel can be
	graphically displayed. The waypoints can be displayed with symbols and alphabets.
	The current position can be registered as the waypoint by simply pressing the
		1	key.
		EVENT
(2) Satellte status screens
Screen name			Remarks
SAT STATUS	Which provides the operator with the GPS information (the satellite number, elevation
screen	angle, azimuth angle, and signal level).

11

JLR-7700 MK2 GPS Navigator

1.2Features

The equipment can be operated with ease by simply selecting the menu displayed on the screen.

A large LCD ensures simultaneous display of various navigation information required, which in turn eliminates the necessity for frequently switching the display.

NNN-4331 DGPS receiver for differential position fixing offers a higher accuracy position.

A maximum of 499 waypoints can be stored.

Each waypoint can be displayed with alphanumeric.

Two data outputs are available and either one of the NMEA 0183 versions 1.5, 2.1, or 2.3 (IEC61162-1) can be selected. Note that one of the two outputs is of RS422 level.

The position information obtained by the GPS can be displayed in the Loran time difference as well.

The graphically displayed COURSE DEVIATION IND. screen enables the operator to determine the steering direction by simply taking a look at it, which in turn ensures safety and economical navigation. In addition, the symbols attached to the respective waypoints can be displayed on the PLOT screen besides the actual navigation tracked by your vessel.

The equipment can display information either in Japanese or English.

Local weather and sea conditions in coastal sea areas of Japan can be displayed.

12

JLR-7700 MK2 GPS Navigator

1.3 Configuration

The equipment consists of the units shown in the table below. Immediately inform our local sales office or

your distributor if any one of them is found missing.

Unit	Model	Quantity	Remarks
Navigator	NWZ-4570B	1
Bracket	CFQ-8919	1	5m with connector (For navigator)
Power supply cable	CFQ-3598B	1	1.8m with connector (For navigator)
DGPS receiver	NNN-4331	1	With 15m cable
Screw mount	MTV302007	1	(For DGPS receiver)
Fitting belt	MPBP02520	1 set	Include 2 belts (For DGPS receiver)
Connector	6-282-7SG-321	1	(For data output)
Copper plate		1	25W×2000×0.3t (For navigator)
Spare parts		1 set	2A fuse
Suppression ferrite	E04SR200935A or equivalent	1	See the item 3.4.3 "Connection of
			the DGPS Receiver" for the
			mounting method
Mounting screws	MPTG02342	1 set	Three self-tapping screws with washers
Instruction manual	7ZPNA4032	1
In addition, the following items are available as the optional units.
Unit	Model		Uses
Junction box	NQE-7700A
Pole mounting kit	MPBP30608
Output buffer	NQA-4251	The buffer can divide the output from the
		navigator to twelve other external equipment
		connected in parallel.
AC power supply unit	NBA-3581A	The rectifier converts the AC power (100 or 200
		VAC) into the rated power supply voltage of 24
		VDC for NWZ-4570B.
		Further, the 24 VDC power as supplied from the
		battery may be connected to the navigator to
		backup the AC power supply.
Printer	NKG-84	Various information displayed on the navigator
		information, SAT status and so on can be
		printed out by connecting the DATA OUT
		connector provided on the rear panel of the
		navigator to the printer using the optional data
		cable (CFQ-8921).
Data cable	CFQ-8921	The data cable can used when it is necessary to
		output data from the DATA OUT connector
		provided on the rear panel of the navigator.
Extension cable	250V-MPYCYS-5 or	The cable is used to extend the cable for the
	250V-MPYCYS-7	DGPS receiver, which is recommended as the
		standard extension cable.

13

JLR-7700 MK2 GPS Navigator

1.4 Construction

(1) Outline drawing of NWZ-4570B navigator

					29
94							94
					50
					15

3-φ6.5

															90								FRONT
212									224				252		REAR
															90

134	16	30
150		Unit : mm

Weight : less than 1.8Kg

14

JLR-7700 MK2 GPS Navigator

(2) Outline drawing of NNN-4331 DGPS receiver

φ126

φ198

φ150

					135
		φ6
					42

φ40

Mounting screw: 1INCH 14 UNS-2B

Unit : mm

Weight : less than 1.7Kg

15

JLR-7700 MK2 GPS Navigator

(3) Outline drawing of NQE-7700A junction box

85

				41.5
(139)		83												JRC
				41.5								NQE-7700A

250V-MPYCYS-7

DGPS cable

CFQ-8919

Gland φ15

2-φ7

30

SUS

Gland φ25

70	82

12

100

120

Unit : mm

Weight : less than 0.7Kg

16

JLR-7700 MK2 GPS Navigator

1.5 General System Diagram

NNN-4331

DGPS receiver

Attached cable (length:15m)

(Cut the cable to the required length)

*NQE-7700A		*With pole mounting kit
Junction box		MPBP30608

*250V-MPYCYS-5 or 250V-MPYCYS-7 (Max. 50m)

*NQE-7700A

Junction box

Log pulse or external buzzer

DGPS cable

CFQ-8919

5m

Data cable

* CFQ-8921

3m

NWZ-4570B

*NQA-4251

Data out 1 to 12

DC power supply cable

Navigator

CFQ-3598B

1.8m

Buffer unit

*250V-DPYC-1.25

AC100-115/220-240V

*NBA-3581A

1φ50/60Hz

AC power

DC24V

supply unit

*Option

17

JLR-7700 MK2 GPS Navigator

2. Unit Descriptions and Functions

2.1 Operation Panel of the Navigator

The following figure shows the keys provided on the operation panel of the navigator and the functions

thereof.

11 14

MODE

			EVENT			GOTO
						INC
						DEC
			CLR			ENT
				PWR		OFF
				DIM		CONT

1

2

3

4

5

6

7

8

9

12

10

15

13

16

Fig. 2-1 Operation Panel of the Navigator

18

				JLR-7700 MK2 GPS Navigator
	No.	Description		Function
	1		1	To enter the numerical value “1” or memorize the event (for the waypoint
			EVENT	numbers 400 to 499).
	2		2	To enter the numerical value “2”.
	3		3	To enter the numerical value “3” or to set the one destination.
			GOTO
	4		4	To enter the numerical value “4”.
	5		5	To enter the numerical value “5”.
	6		6	To enter the numerical value “6”, to magnify the plot scale, or to adjust the
			INC	contrast.
	7		7	To enter the numerical value “7”.
	8		8	To enter the numerical value “8”.
	9		9	To enter the numerical value “9”, to reduce the plot scale, or to adjust the
			DEC	contrast.
	10		0	To enter the numerical value “0”.
	11		MODE	To the selection screen.
	12		ENT	To execute a given data input.
	13		CLR	To erase a wrong input data or to turn off the alarm sound.
	14			To move the cursor or waypoints on the list.
	15			Selection on the menu.
	16	PWR	OFF	To turn on and off the power, to adjust the backlight, or to start or finish the
		DIM	CONT	contrast adjustment.

19

JLR-7700 MK2 GPS Navigator

2.2 Rear Panel of the Navigator

17

18

19

20

Fig. 2-2 Rear Panel of the Navigator

No.	Description	Function
17	DATA OUT connector	This connector outputs various data (DATA 1 and DATA 2) for the plotter,
		auto pilot, printer, remote display and so on, in addition to the external
		buzzer or log pulse.
18	GPS/DGPS connector	This connector connects the NNN-4331 DGPS receiver.
19	12/24 VDC connector	This connector connects the CFQ-3598B power supply cable included in
		the equipment.
20	Terminal E	This connector needs to be connected to the earth of the vessel frame.

Use the attached copper tape (25W×2,000×0.3t) to connect it.

20

JLR-7700 MK2 GPS Navigator

2.3DGPS Receiver

Receiver

Cable

Aluminum base

Connector

No.	Name	Function
1	Receiver	To provide DGPS position fixing by receiving GPS signals form a maximum of
		twelve satellites as well as DGPS correction data from ground beacon stations.
2	Cable	To supply DC power for the antenna and input/output a data to a navigation
		equipment 6 wires cable.
3	Aluminum base	To mount on a navigation antenna mount unit or on an extension mast
		conforming to 1"×14 NPT standards.
4	Connector	To connect with the navigator 6-pin connector.

21

JLR-7700 MK2 GPS Navigator

3. Installation

3.1 Installation of the DGPS Receiver

3.1.1Selecting the Position for Installation

CAUTION

When connecting the cable attached to the equipment, do not bend it to an acute angle, twist it, or impart excessive force because this sometimes causes cracks or damage to the coating.

Do not install the receiver where there is excessive vibration.

Vibration may cause receiver failure.

Install the receiver where there is no obstacle, in order to ensure that GPS signals can be directly received from satellites without interference or reflection of signals from surrounding objects.

Whenever possible, select a place having the following characteristics.

1.An open space which allows uniform reception of satellite signals

2.Far away from any of high power transmission antennas

3.Outside radar beam range

4.Away from the inmarsat antenna by not less than 5 meters and below the level of its antenna

5.Away from the antenna of a direction finder by not less than 5 meters

6.Away from the magnet compass by not less than 1 meter

If it is difficult to find an ideal site, select a place temporarily and install the equipment. Conduct a test to make sure that the proper performance can be obtained and then fix the equipment in position. If it is installed at an improper place, reception may become intermittent, resulting in shorter position fixing time and poorer position accuracy.

22

JLR-7700 MK2 GPS Navigator

3.1.2Installation Procedure of the DGPS Receiver

The aluminum bottom of the DGPS Receiver is designed so that it can be installed on screws, mounting conforming to 1”×14. The bottom of the receiver is provided with a slot to allow the receiver cable to be pulled out to the side.

Pull out the receiver cable from aluminum base.

Screw screws, mounting into the aluminum base. As shown below grip the base. Don’t grip joint between cover and aluminum base.

Cover

Joint

Aluminum base

Don't grip joint

Grip the aluminum base

Installation of the DGPS receiver

When the receiver cable is pulled out through the slot, securer it in position to protect it against damage due to vibration.

Connect extension cable with the DGPS receiver. Those

Tie wrap

connectors should be sealed with selfbonding tape due to water proofing.

Appearance

23

JLR-7700 MK2 GPS Navigator

3.1.3Installation of the DGPS Receiver on the Mast

The following figure shows how to install the receiver on the mast.

DGPS receiver

NNN-4331

Screws, mounting

Fitting belt

MTV302007

MPBP02520

Mast (φ26φ90)

1.Loosen the fitting belt screw with a screwdriver to remove the clamp.

2.Coil the fitting belt around mast as shown below.

3.Tighten the clamp screw with the screwdriver.

Clamp

Minus screwdriver

How to Install the Receiver on the Mast

24

JLR-7700 MK2 GPS Navigator

3.2 Installation of the Navigator

CAUTION

Keep the equipment away from the magnetic compass by a minimum of one meter when installing it. Failure to observe this instruction can cause malfunctioning of the compass.

3.2.1Selection of the Installation Location

Pay sufficient attention to the following two points when installing the equipment.

Select a location that can provide ease in operating the equipment and viewing information displayed on the screen.

Observe the following instructions.

Do not install the equipment at a location subject to the direct sunlight or nearby the heat source (50 or higher).

Do not operate the equipment at a location that is subject to water droplets, rainwater, or condensation.

Keep the equipment away from the magnetic sources such as the magnetic compass, speaker, or motor since they can damage the electronic circuit in the equipment.

Keep the equipment away from the radio set, radar, TV set, fluorescent lamp, antenna, etc. to avoid possible radio interference.

25

JLR-7700 MK2 GPS Navigator

3.2.2Installation of the Navigator

WARNING

Secure the bracket with the screws provided with the equipment. Failure to observe the instruction can cause injury or property damage since the equipment is likely to drop.

Firstly, secure a space for the mount according to Fig. 3-1. Then, secure the mount by following the procedures

shown below.

(1)Determine the location to install the equipment. Mark the three mounting screw positions with a pencil or equivalent. See the Fig. 3-2 for the mounting screw hole size.

(2)Secure the bracket at the installation location using the three self-tapping screws.

(3)Mount the equipment on the bracket and confirm that it is securely mounted.

(4)Adjust the orientation of the equipment to an optimum position.

26

JLR-7700 MK2 GPS Navigator

		160				200

200

160

160

200

Unit : mm

Fig. 3-1 Installation Orientation and Spatial Requirements

Rear

Front

Unit : mm

Fig. 3-2 Bracket Mounting Dimensions

27

JLR-7700 MK2 GPS Navigator

3.3 Installation of the Junction Box

3.3.1How to Mount the Junction Box on the Mast

Securely mount the junction box on the mast using the pole mounting kit (See the item 3.2.2 “Pole Mounting Kit” for details.).

Pole (φ26 φ53

BOLT SUS

M6×50

SUS

Pole mounting kit

(MPBP30608)

W6 SUS

SW6 SUS

N6 SUS

LN6 SUS

* SUS : Stainless steel

Pole (φ26 φ53)

For DGPS receiver

Gland φ15

JRC

NQE-7700A

Gland φ25

250V-MPYCYS-7

28