Jrc JLR-7700 Mkii User Manual
JLR-7700MK
GPS NAVIGATOR GPS NAVIGATOR
INSTRUCTION INSTRUCTION
MANUAL MANUAL
Ⅱ
JLR-7700 MK2GPS Navigator
Foreword
Thank you for choosing the JLR-7700 MK2 GPS 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.
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JLR-7700 MK2GPS Navigator
Before Commencing the Equipment Operation
Graphical Symbols
WARNING
CAUTION
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.
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
Examples of the Symbols
The symbols shown in the △ mark represent those that require attention
(including the potential dangers and warnings).
Don’t
disassemble
Disconnect
the power
supply plug
Electric shock
Don’t
Instruction
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.
observed.
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JLR-7700 MK2GPS Navigator
POWER
OFF!
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.
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JLR-7700 MK2GPS Navigator
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.
CAUTION
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
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.
No
Thinner
Benzine
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JLR-7700 MK2GPS Navigator
Appearance of the Equipment
DGPS Receiver Navigator
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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
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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
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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
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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 navigation 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 receiving the correction data with a beacon receiver for a given GPS satellite, 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 infor-
mation 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 knowledge 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.
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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 according 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 requirements 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.
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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 re-
ceiver 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).
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JLR-7700 MK2 GPS Navigator
1.2 Features
・ 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.
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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
Instruction manual 7ZPNA4032 1
Three self-tapping screws with washers
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.
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JLR-7700 MK2 GPS Navigator
1.4 Construction
(1) Outline drawing of NWZ-4570B navigator
2915
94212
50
224
94
252
90
REAR
3-φ6.5
FRONT
90
1341630
150
Unit : mm
Weight : less than 1.8Kg
14
(2) Outline drawing of NNN-4331 DGPS receiver
φ198
φ150
JLR-7700 MK2 GPS Navigator
φ126
φ6
135
42
φ40
Mounting screw:
1INCH 14 UNS-2B
Unit : mm
Weight : less than 1.7Kg
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JLR-7700 MK2 GPS Navigator
(3) Outline drawing of NQE-7700A junction box
41.5
DGPS cable
CFQ-8919
85
Gland φ15
2-φ7
(139)
83
41.5
250V-MPYCYS-7
JRC
NQE-7700A
30
SUS
Gland φ25
70
82
16
12
100
120
Unit : mm
Weight : less than 0.7Kg
1.5 General System Diagram
NNN-4331
DGPS receiver
Attached cable (length:15m)
(Cut the cable to the required length)
JLR-7700 MK2 GPS Navigator
*NQE-7700A
Junction box
*250V-MPYCYS-5 or 250V-MPYCYS-7
(Max. 50m)
*NQE-7700A
Junction box
DGPS cable
CFQ-8919 5m
NWZ-4570B
Navigator
*With pole mounting kit
MPBP30608
Data cable
CFQ-8921 3m
*
DC power supply cable
CFQ-3598B 1.8m
Log pulse or external buzzer
*NQA-4251
Buffer unit
Data out 1 to 12
AC100-115/220-240V
1φ50/60Hz
DC24V
*NBA-3581A
AC power
supply unit
*250V-DPYC-1.25
*Option
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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.
15
11
13
MODE
14
EVENT
CLR ENT
OFF
PWR
CONT
DIM
16
GOTO
1
2
3
4
5
6
INC
DEC
7
8
9
12
10
Fig. 2-1 Operation Panel of the Navigator
18
No. Description Function
JLR-7700 MK2 GPS Navigator
1
2
3
4
5
6
7
8
9
10
11
1
EVENT
2
3
GOTO
4
5
6
INC
7
8
9
DEC
0
MODE
To enter the numerical value “1” or memorize the event (for the waypoint
numbers 400 to 499).
To enter the numerical value “2”.
To enter the numerical value “3” or to set the one destination.
To enter the numerical value “4”.
To enter the numerical value “5”.
To enter the numerical value “6”, to magnify the plot scale, or to adjust the
contrast.
To enter the numerical value “7”.
To enter the numerical value “8”.
To enter the numerical value “9”, to reduce the plot scale, or to adjust the
contrast.
To enter the numerical value “0”.
To the selection screen.
12
13
14
15
16
PWR
DIM
ENT
CLR
OFF
CONT
To execute a given data input.
To erase a wrong input data or to turn off the alarm sound.
To move the cursor or waypoints on the list.
Selection on the menu.
To turn on and off the power, to adjust the backlight, or to start or finish the
contrast adjustment.
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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
DATA OUT connector This connector outputs various data (DATA 1 and DATA 2) for the plotter,
17
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.
12/24 VDC connector This connector connects the CFQ-3598B power supply cable included in
19
the equipment.
Terminal E This connector needs to be connected to the earth of the vessel frame.
20
Use the attached copper tape (25W×2,000×0.3t) to connect it.
20
2.3 DGPS Receiver
① Receiver
JLR-7700 MK2 GPS Navigator
② Cable
③ Aluminum base
④ Connector
No. Name Function
Receiver To provide DGPS position fixing by receiving GPS signals form a maximum of
1
twelve satellites as well as DGPS correction data from ground beacon stations.
Cable To supply DC power for the antenna and input/output a data to a navigation
2
equipment 6 wires cable.
Aluminum base To mount on a navigation antenna mount unit or on an extension mast
3
conforming to 1"×14 NPT standards.
Connector To connect with the navigator 6-pin connector.
4
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JLR-7700 MK2 GPS Navigator
3. Installation
3.1 Installation of the DGPS Receiver
3.1.1 Selecting 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.
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JLR-7700 MK2 GPS Navigator
3.1.2 Installation 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.
① Pull out the receiver cable from aluminum base.
② 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
③ When the receiver cable is pulled out through the slot,
securer it in position to protect it against damage due to
vibration.
④ Connect extension cable with the DGPS receiver. Those
connectors should be sealed with selfbonding tape due to
water proofing.
Tie wrap
Appearance
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JLR-7700 MK2 GPS Navigator
3.1.3 Installation 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
MTV302007
1. Loosen the fitting belt screw
with a screwdriver to remove
the clamp.
Clamp
2. Coil the fitting belt around mast
as shown below.
Fitting belt
MPBP02520
Mast
(φ26〜φ90)
3. Tighten the clamp screw with
the screwdriver.
24
Minus screwdriver
How to Install the Receiver on the Mast
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.
3.2.1 Selection 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
3.2.2 Installation 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
200
160
200
160
160
200
Fig. 3-1 Installation Orientation and Spatial Requirements
Rear
Front
Unit : mm
Unit : mm
Fig. 3-2 Bracket Mounting Dimensions
27
JLR-7700 MK2 GPS Navigator
3.3 Installation of the Junction Box
3.3.1 How 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
JRC
NQE-7700A
* SUS : Stainless steel
Pole (φ26〜φ53)
For DGPS receiver
Gland φ15
28
Gland φ25
250V-MPYCYS-7
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