Koden MDC-900 Series User manual

MDC-900 Series Document Revision History
0093142132-05 i
MDC-900 Series Operation Manual
Doc No. 0093142132
Document Revision History
No. Doc. No / Rev. No. Reviced Date
(Y/M/D)
Revised Content
0 0093142132-00 2008/07/18 First edition
1 0093142132-01 2008/11/10 Total revision
2 0093142132-02 2009/05/22 Chapter 5
3 0093142132-03 2010/02/18 Total revision
4 0093142132-04 2011/04/11 Total revision
5 0093142132-05 2011/09/30 Chapter 2, Chapter 3, Chapter 6
6
7
8
9
10
Document No. Revised Version Norm
When part of the document needs to be revised, the document has advanced revision number.
The document No. is indicated at the lower right side on the cover and at the left or right side of the
footer region of each page.
© 2008-2011 Koden Electronics Co., Ltd. All rights reserved.
No part of this publication may be reproduced, transmitted, translated in any from by any means
without the written permission of Koden Electronics Co., Ltd. The technical descriptions contained
in this publication are subject to change without notice. Koden assumes no responsibility for any
errors, incidentals or consequential damages caused by misinterpretation of the descriptions
contained in this publication.

Important Notices MDC-900 Series
ii 0093142132-05
Important Notices
The re-use and transcription of Operation Manual (hereafter called this manual) needs permission
of our company. Our company prohibits the un-authorized re-use and transcription.
If this manual is lost or damaged, consult our dealer or our company.
The specification of our products and the content in this manual are subject to changed without
notice.
In the explanation of this manual, the content displayed on the menu of product may be different,
depending on the situation. The keys and menus in the illustration may differ in physical font and
shape. And some parts may be omitted.
Our company is not liable for damage and trouble arising from misunderstanding of the content
described in this manual.
Our company is not liable for earthquake, lightning, fire for which our company is not responsible,
action by third party, other accident, customer’s unintended error/abuse and damage caused by
the use under other abnormal condition.
Our company is not liable for damage of accompaniment (change/loss of memorized content, loss
of business profit, stop of business) arising from use or failure of our product.
If the stored data is changed or lost, irrespective of any cause of trouble and damage, our
company is not liable for it.
Our company is not liable for any damage arising from malfunction caused by combination of such
software and connected equipment that did not involve our company.

MDC-900 Series For Your Safe Operation
0093142132-05 iii
For Your Safe Operation
Symbol used in this Operation Manual
This manual uses the following symbols. Understand the meaning of each symbol and implement the
maintenance and inspection.
Symbol Meaning
Mark for warning
This symbol denotes that there is a risk of death or serious injury when
not dealing with it correctly.
Mark for danger high voltage
This symbol denotes that there is a risk of death or serious injury
caused by electric shock when not dealing with it correctly.
Mark for caution
This symbol denotes that there is a risk of slight injury or damage of
device when not dealing with it correctly.
Mark for prohibition
This symbol denotes prohibition of the specified conduct. Description of
the prohibition is displayed near the mark.
IMPORTANT Mark for important matters
This mark denotes that there is a possibility that data loss may interfere
the operation or that the expected result may not be obtained when the
radar is not dealt correctly.
Mark for reference
This mark shows the part to be referred to concerning this description.

For Your Safe Operation MDC-900 Series
iv 0093142132-05
Caution Item on Equipment
Caution on a high voltage inside.
A high voltage, which may risk your life, is used. This high voltage
remains in the circuit after you have powered off switch. To prevent
touching the high voltage circuit inadvertently, the protective cover is
provided to the high voltage circuit and the high voltage caution label is
affixed. Ensure to power off switch for your safety and discharge the
electricity remaining in the capacitor before starting to check. An
engineer authorized by our company should inspect and maintain the
circuit.
Be sure to switch off the power in the boat.
If the power switch is inadvertently powered on during work, you will be
electrified. To prevent such accident from occurring, ensure to switch off
the power in the boat and the power of equipment. Furthermore, it is
safer to hang the caution tag with description of [Under Work] near the
power switch of equipment.
Caution on dust
Inhaling dust may cause Arespiratory disease. When cleaning the inside
of equipment, be careful not to inhale dust. Wearing a safety mask is
recommended.
Caution on location of equipment
Do not install the equipment where it is excessively damp and suffers
from excessive water drops.
Caution on static electricity
The static electricity may be generated from the carpet on the floor in the
cabin or clothes made of synthetic fiber. The static electricity may
destroy the electronic parts on the circuit board. Handle the circuit board,
taking the suitable anti-static measures.

MDC-900 Series For Your Safe Operation
0093142132-05 v
Caution Item on Handling
Caution on the rotating aerial
The radar antenna may start to rotate without notice. Please
stand clear from the antenna for your safety.
Caution
Caution on electromagnetic disturbance
The operating antenna & scanner unit radiates high-energy electromagnetic
wave. It may cause harmful effect for human body due to its continuous
irradiation. As International regulation says, electromagnetic waves less than
100 watt/m2does not have a harmful effect on human bodies, but some kind
of medical devices such as heart pacemakers are sensitive even under the
low energy electromagnetic wave. Any personnel with such a device should
keep away from the electromagnetic wave generating position at all times.
Specified power density and distance from the radar (in accordance with the
provision as specified in IEC 60945)
Model Xmit power/Antenna length 100W/m210W/m2
MDC-921 2kW/ 1.2 feet (Radome antenna) 0.4 m 1.27 m
MDC-941 4kW/ 2 feet (Radome antenna) 0.8 m 2.54 m
4kW/ 3 feet (Open antenna) 0.9 m 2.85 m MDC-940
4kW/ 4 feet (Open antenna) 1.01 m 3.2 m

For Your Safe Operation MDC-900 Series
vi 0093142132-05
Caution on Display Unit
Do not push or scrub the surface of the display unit with a pointed tip of a
hard matter (tool, tip of a pen, etc) Scars could be made.
Do not press the surface of the display unit. Interference stripes or display
abnormality could occurs.
Disposal of this radar
This radar shall be disposed according to the municipal regulations or rules.
Do not disassemble or modify. It may lead to trouble, fire, smoking or
electric shock. In case of trouble, contact our dealer or our company.
In case of smoke or fire, switch off the power in the boat and the power
of equipment. It may cause fire, electric shock or damage.
Caution on the remaining high voltage.
A high voltage may remain in the capacitor for several minutes after
you have powered off. Before inspecting inside, wait at least 5 minutes
after powering off or discharging the remaining electricity in an
appropriate manner. Then, start the work.
The information displayed in this unit is not provided directly for your
navigation. For your navigation, be sure to see the specified material.
Use the specified fuse. If un-specified fuse is used, it may cause a fire,
smoke or damage.

MDC-900 Series Contents
0093142132-05 vii
Contents
Document Revision History.......................i
Important Notices.....................................ii
For Your Safe Operation .........................iii
Contents.................................................vii
Introduction ..............................................x
System Configuration..............................xi
Configuration of Equipment....................xii
Chapter 1 Basic Operation......................1-1
1.1 How to read the radar screen....1-3
1.2 How to use the keys...................1-4
1.3 Power On/Off.............................1-6
Power On...................................1-6
Power Off...................................1-6
Language Selection at Initial
Start-up ......................................1-6
1.4 Brilliance Adjustment..................1-6
Brightness Adjustment of LCD...1-6
Brightness Adjustment of
Panel..........................................1-6
1.5 Transmission..............................1-6
Start of Transmission .................1-6
Stop of Transmission .................1-6
1.6 Switch-over of Range ................1-7
Change of Range.......................1-7
Change of Sub-screen Range...1-7
1.7 Gain Adjustment.........................1-7
Gain Adjustment.........................1-7
Adjustment of Sub-screen
Gain ...........................................1-7
1.8 STC Adjustment.........................1-8
STC Adjustment.........................1-8
1.9 Use of [F1] and [F2] keys...........1-8
How to use [F1] and [F2] keys...1-8
1.10 Delete of Heading Line..............1-9
Delete of Heading Line..............1-9
1.11 Use of Crosshair Cursor ............1-9
1.12 Measuring the distance and
bearing between two points.....1-10
Measuring the distance and
bearing between two points.....1-10
1.13 Camera Display .......................1-10
How to connect a CCD
camera.....................................1-10
How to display the video of a
CCD camera............................1-10
Chapter 2 How to use the menu.............2-1
2.1 How to operate the menu ..........2-1
Display/Non-display of Menu.....2-1
Operation of Menu.....................2-1
2.2 FTC Adjustment.........................2-2
2.3 Setting of Display Mode.............2-2
H UP (Head Up).........................2-2
N UP (North Up).........................2-3
C UP (Course Up)......................2-3
WPT UP (Waypoint Up).............2-3
Relative Motion (RM) and True
Motion (TM)................................2-3
True Motion Reset .....................2-5
2.4 Display Select............................2-5
PPI Display ................................2-5
PPI/PPI Display..........................2-5
Note on PPI/PPI Display............2-6
PPI/NAV Display........................2-6
Note on PPI/NAV Display...........2-6
2.5 Setting of OFF CENTER............2-6
2.6 Setting of Enhance
(Enlarged Target).......................2-6
2.7 Setting of Signal Process...........2-6
2.8 Setting of Pulse Width................2-7
2.9 Trailing .......................................2-7
Relative Display (R)...................2-7
True Display (T) .........................2-8

Contents MDC-900 Series
viii 0093142132-05
2.10 EBL.............................................2-8
2.11 VRM ...........................................2-8
2.12 Display Color..............................2-9
2.13 Crosshair Cursor Shape.............2-9
2.14 PI (Parallel Index Line)...............2-9
2.15 Bearing Mode.............................2-9
2.16 Vector.........................................2-9
2.17 Alarm........................................2-10
IN Mode....................................2-10
OUT Mode................................2-10
Setting of Alarm Range............2-10
2.18 Sleep........................................2-10
Operation during executing the
sleep.........................................2-10
2.19 AIS............................................2-11
Setting of Symbol Display of
AIS............................................2-11
Setting of Detailed Information of
Designated Symbol Display.....2-11
Types and Meanings ofAIS
Symbols....................................2-11
2.20 ATA...........................................2-12
Automatic Acquisition...............2-12
Manual Acquisition...................2-12
Target Level..............................2-12
Target Delete............................2-13
Number of Acquisition..............2-13
Information Display ..................2-13
Types and Meanings ofATA
Symbols....................................2-14
Chapter 3 How to use the system
menu .....................................3-1
3.1 Display of System Menu ............3-1
Display the System Menu ..........3-1
Return to the normal menu ........3-1
3.2 Setting of Assist Items................3-1
Range Rings ..............................3-1
Range Unit .................................3-1
Speed Unit..................................3-1
Temperature Unit........................3-1
Depth Unit..................................3-1
Position Display..........................3-1
WPT Display...............................3-2
Rotation Speed...........................3-2
ALL PPI......................................3-2
Guide..........................................3-2
Buzzer........................................3-2
Motor Speed...............................3-2
N UP/S UP.................................3-2
Crosshair Cursor Display...........3-2
Radar Setting Display ................3-2
Menu Operation .........................3-2
3.3 Setting of Adjustment Items .......3-2
Bearing Setting...........................3-3
TX Delay Adjustment..................3-3
MBS............................................3-3
STC Curve .................................3-4
Tune Select................................3-5
Automatic Tuning .......................3-5
Manual Tune Adjustment............3-5
Pulse Width................................3-5
Interference Rejection................3-6
Echo Color Divide ......................3-6
Signal Select..............................3-6
Field of Angle .............................3-6
3.4 NMEA.........................................3-7
KGC-1 Setting (Connection with
the KODEN GPS compass).......3-7
3.5 Preset.........................................3-7
F1/F2 Key Set............................3-7
Select Range..............................3-7
Echo Color Set...........................3-7
Trail Color Set ............................3-7
Display Color Set .......................3-7
Language Select........................3-7
NAV Display Select....................3-7
Camera Position Crrection.........3-7

MDC-900 Series Contents
0093142132-05 ix
3.6 Maintenance ..............................3-8
Display Unit................................3-8
Antenna......................................3-8
Panel Test..................................3-8
LCD Test ....................................3-8
Operation Hours Reset..............3-8
TX Hours Reset .........................3-8
ALL Reset ..................................3-8
System Program Renewal.........3-8
Chapter 4 Maintenance ...........................4-1
4.1 Maintenance ..............................4-1
Monthly Inspection.....................4-1
Yearly Inspection........................4-2
4.2 Fuse Replacement.....................4-3
4.3 Consumables.............................4-3
4.4 Trouble Diagnosis......................4-3
Information required for
requesting a repair.....................4-3
Error Display..............................4-3
Self-diagnostic Function ............4-4
Inspection at Each Location.......4-5
Chapter 5 Equipment..............................5-1
5.1 Antenna Installation ...................5-1
Determining the location of
the installation............................5-1
How to shift the antenna from an
obstacle......................................5-2
Installation of Antenna................5-3
Installation of Radome Antenna.5-3
Setting of Open Antenna............5-4
Installation of Antenna................5-5
Cable Connection ......................5-6
5.2 Mutual Connection Diagram....5-10
5.3 Display Unit Installation............ 5-11
Desktop Installation.................. 5-11
Flush-mount Installation...........5-12
5.4 Adjustment after Installation.....5-13
5.5 Wiring.......................................5-14
Cable connection to the Display
unit ...........................................5-14
Pin Assignment of Rear
Connector ................................5-15
Connection of DC power
cable ........................................5-16
Grounding................................5-16
Connection with the AIS
Receiver .................................5-16
Connection with the navigation
equipment................................5-17
Connection of External Buzzer
and External Monitor................5-17
Connection of CCD Camera....5-18
5.6 List of Input/Output Sentence..5-18
Input Sentence.........................5-18
Output Sentence......................5-18
Chapter 6 Attached Table.......................6-1
6.1 Menu Configuration....................6-1
6.2 Specifications.............................6-3
6.3 External View.............................6-5
Chapter 7 Principle of radar system.......7-1
7.1 What is the radar system?.........7-1
Side lobe....................................7-1
Beam width................................7-1
7.2 Characteristics of radar radio
wave...........................................7-2
Target with less reflection ..........7-2
Radar shadow............................7-2
False image ...............................7-2
7.3 Radar interference.....................7-4

Introduction MDC-900 Series
x 0093142132-05
Introduction
Thank for your purchase of KODEN color LCD radar MDC-900 Series.
The quality and endurance of a unit is well considered. For the best performance, read this Operation
Manual and operate a unit correctly and safely.
The main features of this unit are as follows.
The high performance radar equipped with 8.4 inch display can be used for professional use.
In the true trail function, as moving targets such as other ships are displayed being tailed and
stationary targets such as land are displayed being fixed, the moving targets and fixed targets can
be easily discriminated.
Two screen images of different ranges can be displayed. If you set a near distance screen and a far
distance, you can navigate properly and grasp a situation.
The automatic tracking function (ATA) is provided. The maximum 50 targets can be tracked. The
current motion of other ships can be grasped in a vector and numeral so that it helps your ship to
navigate safely. (Optional)
By connecting theAIS receiver, the gathered information such as name, heading and speed of a
ship can be displayed. (Optional interface)
With the adoption of a specific filter (AR coat), an image can be seen clearly, refusing sunshine. The
countermeasures against the reflection on the LCD screen and dew are provided.
The RGB output for an external monitor is provided as standard equipment. The use of the external
monitor enables you to observe easily the radar screen at a location which is remote from a main
unit. (External monitor: Prepared by a customer)
A video from a CCD camera can be displayed. The inside of a ship can be observed by a camera
installed at the engine room helps your ship navigate safely. (CCD camera: Prepared by a customer)
With the adoption of the gain/STC rotary knob, the operability is enhanced.
When flush-mounted, a unit can be installed or removed from the front of the unit.

MDC-900 Series System Configuration
0093142132-05 xi
System Configuration
Connection Diagram
Be sure to connect the KGC-1 to J4.
: Standard product
: Optional product
: Product prepared by a user
ENT
MENU
RANGE
GAIN
TX
BRILL
10.8 31.2VDC
CCD camera
External Monitor
External Buzzer
Display Unit MRD-103
Navigation Equipment Navigation Equipment
J1
J2 J6
J3 J4
Antenna - scanner unit
RB714A/RB715A/RB716A with RW701A-03/04
Remote Display
MRD- XXX
AIS receiver J7
J5 POWER
KGC-1 or
Navigation equipment
Slave Display

Configuration of Equipment MDC-900 Series
xii 0093142132-05
Configuration of Equipment
Standard Equipment Configuration List
No. Name of item Type Remarks Weight/Length Quantity
1 Display unit
MRD-103 With mounting
bracket and
knobs
3.7kg 1
2 Hard cover
E57MB11060 0.25kg 1
3 DC power cable
CW-265-2M 3-pin water
resistant
connector
and one end
plain
2m 1
4 Fuse
F-1065-8A
Cylinder (ø6.4x30) Normal fusion type for main
power
1
5 CCD camera cable
CW-405-0.3M 0.3m 1
6 Antenna-scanner unit See next page. With cable 1
7 Operation Manual English 1
8 Quick Reference English 1

MDC-900 Series Configuration of Equipment
0093142132-05 xiii
Types of Antenna-scanner unit
No. Type Transmitting
Power Shape Remarks Weight/Length
1 RB714A
2kW Radome Interconnecting
cable, 10m*,
242J160680A-10M
6kg / 1.2ft
2 RB715A
4kW Radome Interconnecting
cable, 10m*,
242J158055A-10M
10kg / 2ft
21kg / 3ft3 RB716A with RW701A-03/04
4kW Open Interconnecting
cable, 10m*,
242J159098A-10M
22kg / 4ft
* Cables of 15m, 20m and 30m are available. (Optional)
Optional List
No. Item Name Type Remarks Cable Length
1 GPS compass KGC-1 GPS/Heading
measuring
2 AIS interface board AIS-110 100 targets
3 Cable for AIS receiver CW-376-5M With 6-pin waterproof
connector and one
end plain.
5m
4 ATA board MRE-340
5 Cables for external
monitor/external buzzer CW-576-0.5M 10-pin water resistant connector and
D-SUB connector
(female) + Alarm out
cable
0.5m
6 Cable for slave display CW-561-10M With 12-pin water
resistant connectors
at both ends.
10ｍ
7 Power rectifier PS-010 With 2 pieces of 5A
fuse
8 AC power cable VV-2D8-3M Both ends plain. 3m
CW-373-5M 6-pin water resistant
connectors at both
ends
5m9 Cable for navigation cable
CW-376-5M With 6-pin waterproof
connector and one
end plain.
5m

Chapter 1 Basic Operation MDC-900 Series
1-1 0093142132-05
Chapter 1 Basic Operation
The basic operation of this unit is as follows. For detailed explanation, refer to each item in this manual.
1.
1.3 Power On/Off
2.
1.5 Transmission
1. Press the [BRILL] to turn
on the power. When [ST'BY] appears, press
the [STBY/TX] key to start
the transmission.
5. Rotate the [STC] knob to adjust the sea surface reflection suppression effect.
The suppression effect becomes strong when rotating clockwise the knob and
becomes weak when rotating counterclockwise the knob.
・This function reduces the gain at a near distance. If you turn clockwise the knob
too much, desired objects may disappear. Adjust properly to meet the weather
condition.
Example of STC adjustment :
: The suppression
is too weak. : Optimum suppression.
The reflection from sea
surface is displayed. The desired objects are displayed.
: The suppression
is too strong.
Some objects are
not displayed.
1.8 STC adjustment
ENT
MENU
RANGE
GAIN
TX
STBY
BRILL
Rotate the [STC] knob to ad
j
ust the sea surface reflection suppression effect.

MDC-900 Series Chapter 1 Basic Operation
0093142132-05 1-2
3.
Change the observation range with the [- RANGE +] key.
When pressing the [+] key, the observation range expands.
When pressing the [-] key, the enlarged surrounding around own ship can be observed.
To make it easier to observe the range you desire, change the range.
Example of display :
Long range : Far distance Middle range : Middle distance
Objects at far distance
can be covered.
Short range : Near distance
Objects near own ship
can be easily confirmed.
1.6 Switch-over of range
4.
Adjust the gain by rotating the [GAIN] knob.
࡮
࡮
Example of gain adjustment:
: Too high gain
Noise is also displayed. Desired targets are
displayed.
Some targets are not
displayed.
: Optimum gain : Too low gain
1.7 Gain adjustment
The gain becomes high when rotating clockwise the knob and becomes low when rotating
counterclockwise the knob.
When the observation range is narrow or targets are crowded, reduce the gain so that
targets can be easily seen.
When the observation range is wide, if the gain is increased, it is effective.
But, due to noise increase, small targets become hard to be seen.

Chapter 1 Basic Operation MDC-900 Series
1-3 0093142132-05
1.1 How to read the radar screen
FTC
EBL
VRM
IN
Off center
Pulse width
Range
Fixed marker interval
Display mode
Heading
Ship
speed
F2 key content
F1 key content
Enhance
Alarm
Trail
Interference
Rejection
Crosshair
cursor
Cursor position
OWN ship's position
PRC
Process

MDC-900 Series Chapter 1 Basic Operation
0093142132-05 1-4
1.2 How to use the keys
(1) (2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
ENT
MENU
RANGE
GAIN
STBY
TX
BRILL
Various adjustment items can be set by operating each key.
The menu displayed by pressing the [MENU] key closes when pressing the [MENU] key again.

Chapter 1 Basic Operation MDC-900 Series
1-5 0093142132-05
Number Key name Explanation
(1) [F1]* Recalls directly the preset menu item.
(2) [ENT] * Press: measures bearing of distance between two points.
Continuously pressing: Deletes the heading line. The crosshair cursor
moves to the own ship’s position.
The value in the menu is set. (Some of functions)
(3) CURSOR
[], [ ]
[], [ ]
Selects the menu item.
Changes the content of set value.
Moves the crosshair cursor.
(4) [F2] * Recall directly the preset menu item.
(5) [MENU] * Opens or closes the menu.
(6) [- RANGE+] Changes the range setup.
(7) [GAIN] * Rotate: Changes the gain.
Push: Changes the gain adjustment of sub-screen (lower screen of
PPI/PPI) and the range.
In the PPI or PPI/NAV display, recall directly the preset menu
item.
(8) [STC] Rotate: Changes the STC.
Push: Display the video of a CCD camera.When the video of a CCD
camera is displayed, if you press it, the size of video changes.
When not connecting CCD camera, recall directly the preset
menu item.
(9) [STBY/TX] Starts or stops the transmission.
(10) [BRILL]* Push: Adjusts the brilliance and the brightness of the panel.
Continuously pressing: Turns on or off the power.
* In case of pressing it during the CCD camera on, the display of the CCD camera becomes off.
When the alarm is functioning, the alarm stops by operating any key.