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Simrad MX510, MX512 User Manual

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www.simrad-yachting.com
A brand by Navico - Leader in Marine Electronics
Manual
Simrad MX510 and MX512 Navigation Systems
English
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Page 3
Simrad MX510 and MX512 Navigation Systems
English
The original language for this document is English. In the event of any discrepancy between translated versions and the English version of this document, the English document will be the official version.
Document no: 510 100 2002 Revision: B Date: May 2010
To the best of our knowledge, the content in this publication was correct at the time of printing.
As we are continuously improving our products we retain the right to make changes to the product and the documentation at any time. Updated manuals are available from our website www.simrad-yachting.com, and are free to download.
© Copyright 2010 by Navico Holding AS.
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2 | MX510/MX512 Operator & Installation Manual
IMPORTANT NOTICE!!
THE MX51x IS AN AID TO NAVIGATION ONLY. UNDER NO CIRCUMSTANCES
SHOULD IT BE USED IN LIEU OF AUTHORIZED GOVERNMENT CHARTS. ITS ACCURACY CAN BE AFFECTED BY MANY FACTORS SUCH AS EQUIPMENT DEFECTS, ENVIRONMENTAL CONDITIONS, OR IMPROPER OPERATION. THE USER IS RESPONSIBLE FOR SAFE NAVIGATION OF THE VESSEL. THIS INCLUDES CONSULTING AUTHORIZED GOVERNMENT CHARTS AND EXERCISING COMMON PRUDENCE AND NAVIGATIONAL JUDGEMENT AT ALL TIMES.
How To Contact Us?
Contact your local SIMRAD Marine dealer for:
Installation, Service, & Technical Support
• Sales of Accessories
• Hardware and Software Upgrades
•
Unlike many other consumer electronics industries which only sell consumer electronic devices, your marine dealer is often your best advisor for installation and service of your new GPS receiver. We strongly encourage you to utilize the knowledge and experience of your sales and service dealer.
Should you need to contact us directly for new sales, upgrades, repair service, or technical support, we can be reached at the following:
USA Office:
NAVICO TORRANCE
A Division of NAVICO, Inc. 23868 Hawthorne Blvd., Suite 201
Torrance, California 90505-5908 USA
+1-310-791-8213 Telephone +1-310-791-6108 Fax
Internet:
www.simrad-yachting.com/en/Pro ducts/Professional/ MX-Line/
Product Information
The model and serial number of your instrument are given on the instrument. Enter the model and serial number in the spaces provided below. Always refer to this information when you contact your dealer.
MX51_ CDU Serial No.:_________________ Antenna Model: _____________ _ ____ Antenna S/N: __ _ _______________
Europe:
NAVICO UK Ltd.
Contact your dealer. www.simrad-yachting.com/
Store-locator
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MX510/MX512 Operator & Installation Manual | 3
About this manual
Models Covered are:
MX51x GPS/DGPS
MX51x/BR
MX51x/BRIM
MX51x/MUC
This manual covers the operation and installation of both the MX510 and MX512 CDU models. The keypad operation of these models are identical.
We have attempted to take care and develop manuals which provide in-depth information. Where possible, we have attempted not only to describe what you see on the screen, but how to understand and use it as well. Obviously, we can’t teach you how to navigate, but we can help make your work more thorough and enjoyable. Throughout the manual, you will find helpful hints about the interaction of various functions. In a piece of equipment that has the many capabilities, important details can sometimes become obscured in one or two lines of text. In our effort to ensure you get the most out of this documentation, and to protect against important details becoming lost, don’t be surprised if you see the same or similar information more than once.
This manual is organized into two main parts. The first section deals with the operation while the second section talks about the installation and electrical interface. We start by describing first the MX51x models covered in this book, then the special front panel features including the traffic light indicator and USB connector. The sections that follow detail each primary function as it is presented on the front panel (i.e. NAV, RTE, WPT, PLOT, ...CFG). The appendices describe important details about special functions and installation of the MX51x.
We hope you find the manual enjoyable and informative reading. As always, we welcome your comments on improving our products or manuals. We wouldn’t mind if you wrote to tell us that we did the job right the first time either. You can find a Reader Comment Card at the back of the manual.
Related Documents
MX51x Quick Reference Guide (P/N 510 100 2003)
Symbols used in this manual
Important text that requires special attention from the reader is emphasized as follows:
Used to draw the reader’s attention to a comment or some important information.
When necessary, used to warn personnel they should proceed carefully to prevent risk of injury and/or damage to equipment.
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4 | MX510/MX512 Operator & Installation Manual
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Page 7
Contents | 5
Contents
1 About GPS Navigation ...................................................... 11
Special notes
.......................................................................11
2 Functional Description
..................................................... 13
CDU Congurations
..............................................................13
Basic CDU conguration
................................................13
MX51x DGPS................................................................13
MX51x/BR
..................................................................13
MX51x/BRIM (Backup Receiver Integrity Monitor)
.............14
MX51x/MUC (Multi Unit Control)
..................................... 14
3 DGPS Beacon System
....................................................... 15
4 Keypad & Display Description
.......................................... 17
Differential GPS Trafc Light Operation:
..................................17
GPS Trafc Light Operation:
..................................................18
The Display:
........................................................................19
+ Virtual Softkeys: .......................................................19
The Function Keys:
...............................................................20
Programmable Keys (F1 to F4) .....................................20
Mark / MOB Key .........................................................20
GOTO .......................................................................21
POWER ON/OFF ........................................................21
CLR (CLEAR) .............................................................21
CURSOR ..................................................................21
ENTER .....................................................................21
DAY/NIGHT View .......................................................21
FUNCTION Keys
...................................................................22
Automatic Identication System (AIS) ..........................22
Navigate ....................................................................22
Dead Reckoning
...........................................................23
NAV1 - The Panorama Screen
........................................23
NAV2 - Basic Steering Information
..................................25
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6 | Contents
NAV3 - Expanded Navigation Information ........................25
NAV4 - Sensor Input Navigation
.....................................26
NAV5 - Compass Display Screen
.....................................28
NAV6 - Compass Display Screen
.....................................28
Route ........................................................................28
RTE1 - The Active Route
................................................29
Creating a Route Using the GOTO Key:
............................29
Erasing an Existing Route
..............................................31
Creating a Multi-Waypoint Active Route
...........................32
Insert By Number
.........................................................32
Choose in Bank
............................................................33
Insert New Waypoint
....................................................34
Insert Route
................................................................34
Maneuvering Within the Route
........................................35
ETA Setup
...................................................................37
SOG Based on Arrival Date & Time:
................................37
RTE2 - The Route Bank
.................................................38
Waypoint ...................................................................39
Creating and Editing Waypoints
......................................39
Waypoint Lock/Unlock
...................................................42
Removing Waypoints
.....................................................43
Moving waypoints
.........................................................44
Saving or Restoring Memory Data Using a USB Device
......46
Downloading Waypoints & Routes to Other Devices
...........47
Downloading Waypoints to a Personal Computer
...............49
Uploading Waypoints from Other Devices
........................50
Uploading Waypoints from a Personal Computer
...............51
Mark / MOB ...............................................................52
GOTO ........................................................................52
Plot ...........................................................................54
PLOT 1 - Relative to Boat
...............................................55
Customizing the Display
................................................55
Plot Screen Use Examples
.............................................57
Grid Search
.................................................................57
Man Over Board .........................................................58
Remote MOB
................................................................59
Auxiliary ....................................................................59
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Contents | 7
AUX1 - Alarm Log .......................................................59
AUX2 - Speed Graph
.....................................................59
AUX3 - Not Used
..........................................................60
AUX4 - Sun Almanac
.....................................................60
AUX5 - Moon Phases
.....................................................60
AUX6 - Batteries
..........................................................60
AUX7 -Unit Information
.................................................60
AUX 10 - Tide
..............................................................61
Current Tide Display
.....................................................61
AUX 11 - Tide Table Port List
..........................................62
Adding a Port
...............................................................63
Position .....................................................................64
POS1 - Position Display (Large Lat/Long Digits)
................64
User GRID
...................................................................65
POS2 - Position, Altitude, Magnetic Variation, & Time
........65
POS3 - Position & Log
...................................................65
GPS ..........................................................................66
GPS1 - GPS Status Screen
.............................................66
GPS2 - GPS Health Screen
.............................................66
GPS3 - Visible Satellites
................................................67
GPS4 - GPS Position Uncertainty
....................................67
GPS5 - RAIM Status Screen
..........................................67
GPS6 - DGPS STATUS
..................................................69
GPS7 - DGPS Messages
.................................................70
Conguration ..............................................................71
Alarms
................................................................................71
Anchor - Anchor Watch Alarm
................................................71
COG SOG - Course & Speed Filter Settings & Setup
..................71
Compass - External Compass Input & Magnetic Variation Table
.. 72
Datum - Current Position Calculation
......................................73
Depth - NMEA Input Control
..................................................73
DGPS - DGPS Conguration
...................................................74
DGPS Mode:
................................................................ 74
DR - Dead Reckoning
............................................................75
Dual Control - Dual Station Control
.........................................75
GPS - Elevation Mask Control
.................................................76
Initial Pos - Initial Position Entry.............................................77
LAN - Local Area Network
.....................................................77
LAN Output (NMEA 0183 OVER IP)
..........................................78
Language - Language Conguration
........................................78
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8 | Contents
Lighting - Display/Keyboard Light, Contrast Control & Set Display Default
Setting ...............................................................................78
Log - Speed Log Input (Pulse or NMEA 0183)
...........................79
Log Pulses - GPS SOG Log Pulse Output
..................................79
LORAN-C Integration
............................................................80
Raytheon:
...................................................................80
Locus:
........................................................................81
Memory
..............................................................................83
Navigation - Navigation Method & Waypoint Pass Criterion Control
8 3
NMEA Out 1 - NMEA 0183 Output Data Control
........................85
Other Special Cases Affecting NMEA 0183 Records:
..................87
Operation - General Setup and Control Settings
.......................88
Organizer - Automated Message Reminders
.............................88
Position - Positioning Reference, Mode, & Alarm Control
............89
Printout (n) - Printer Output Control
........................................90
ROT (Rate of Turn)
...............................................................91
Security
..............................................................................92
Serial I/O
............................................................................92
Time - Mode and Format Control
............................................92
USB - USB Mass Storage Conguration
...................................93
VGA ..................................................................................94
Wind ..................................................................................94
Wpt & Rte Input - Uploading Waypoints into the MX51x
.............95
5 Installation
...................................................................... 97
List of Components
..............................................................97
Installation notes
.................................................................99
General
.......................................................................99
Electronic Connections
..................................................99
Wire Preparation Procedure
......................................... 100
External Power
........................................................... 100
Antenna Installation
.................................................... 101
MX51x Navigator Installation
........................................ 102
Equipment Interfacing
................................................. 103
Mechanical installation drawings
........................................... 115
MX510 Electrical installation drawings
................................... 123
MX512 Electrical installation drawings
................................... 131
6 Technical specications
................................................. 141
Appendix A - Datum List
.................................................... 145
Appendix B - Engineering Mode
......................................... 147
AUX7 - Unit Information & Self Test
...................................... 147
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Contents | 9
CDU Cold Start - Clearing Memory to Factory Default ............. 148
GPS - GPS CDU Troubleshooting
........................................... 149
GPS3 - Visible Satellite Information
.............................. 149
GPS4 - GPS Position Uncertainty
.................................. 149
Antenna Reset Tools
...................................................150
Appendix C - Multiple Unit Control (Via LAN)
.................. 151
Dual Control Conguration:
................................................. 151
Turning Master or Slave Units Off
......................................... 152
Backup Receiver Integrity Monitoring (BRIM)
......................... 152
Multiple Unit Control Conguration
................................ 152
Appendix D - Demonstration Mode
.................................... 155
Appendix E - AIS connection for MX512 only
.................... 157
Introduction
.............................................................. 157
Ship-to-Ship Data Exchange
........................................ 157
Coastal Surveillance
................................................... 158
Vessel Trafc Systems
................................................ 158
AIS Communications Scheme
....................................... 159
AIS Message
.............................................................. 160
MX512/AIS the Total Shipboard GPS/DGPS/AIS Solution
.. 162
AIS System Setup
.............................................................. 162
AIS Cong Setup
........................................................ 162
AIS Static ......................................................................... 163
Conguring the AIS Voyage
................................................. 166
AIS Function Key
................................................................ 168
AIS 1 – OWN SHIP DATA
..................................................... 168
AIS 2 - Remote Ship List
..................................................... 170
AIS 3 - RECEIVED (RX) SAFETY MESSAGES........................... 171
AIS 4 - TRANSMIT (TX) SAFETY MESSAGE
............................ 171
AIS 5 - TX Safety List
........................................................ 172
AIS 6 - REGIONAL AREAS
................................................... 173
AIS 7- LONG RANGE (LR) DISPLAY
....................................... 174
AIS 9 – AIS STATUS
........................................................... 176
AIS11 – Security Log
.......................................................... 176
AIS12 - Remote Ship EPFS
.................................................. 176
AIS13 - Remote Ship Data
................................................... 177
PLOT 3 – AIS Plot Screen
.................................................... 177
Automatic Identication System Installation Section
....... 178
Compass Diagram
...................................................... 179
Appendix F - Glossary
....................................................... 185
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10 | Contents
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Page 13
About GPS Navigation | 11
1 About GPS Navigation
This GPS receiver is a precision navigation instrument utilizing the latest technology available today to provide optimum performance from the GPS satellite and Beacon land signals received. As with all other forms of radio signals, the ultimate navigation result is dependent upon the quality of these signals. Radio signals may, on occasion, be distorted, jammed, or otherwise incorrect. As a result, your position accuracy may occasionally be less than that which can normally be expected.
The Navstar Global Positioning System, commonly referred to as GPS, is a satel lite navigation system developed by the U.S. Department of Defense to provide both military and civilian users with highly accurate, worldwide, three dimensional navigation and time. By receiving signals from orbiting GPS satellites, authorized users are able to continuously navigate with an accuracy on the order of 5 meters 2D RMS or better
A technique referred to as Differential GPS (DGPS), allows users to obtain maximum accuracy from the GPS system. DGPS requires the use of two GPS receivers. One receiver, known as the Reference Station, is placed at a surveyed location, the coordinates of which are precisely known. The purpose of the differential GPS system is to use the reference station to measure the errors in the GPS signals and to compute corrections to remove the errors. The corrections are then communicated in real-time to the navigators, where they are combined with the satellite signals received by the navigators, thereby improving their navigation or positioning. The geographic validity of these corrections decreases with distance from the reference station, but the corrections are valid for navigators hundreds of kilometers from the reference station.
Marine radio beacons operating in the 283.5 to 325.0 KHz frequency range are in widespread use for direction finding in coastal navigation. Because the beacon system has been in place and widely used for many years, it provides an effective means for the transmission of DGPS signals. Depending on their local environment and power output, their signals may be usable to several hundred miles. Marine beacons provide an economical means of obtaining DGPS accuracy for coastal navigators. GPS receivers with built-in beacon receivers are designed to provide low cost reception of DGPS corrections broadcast (normally free of charge) by coastal authorities.
Special notes
GPS
Never rely solely on any single navigational aid. Always use whatever information is available, and cross-check information when possible. GPS expected position accuracy is better than 30 meters (95% of the time) but may be up to 100 meters occasionally. The derived speed and course readings may be hampered accordingly. The GPS system was declared operational in 1994; however, the system’s availability and accuracy are subject to change at the discretion of the US Department of Defense.
DGPS
This GPS receiver’s position accuracy is improved to 1 meter or better for 95% of the time, subject to the availability, accuracy, and control of the DGPS correction transmission from the Beacon Station.
The beacon radio signal which carries the DGPS corrections may be hampered by weather conditions such as heavy rain, snow, and thunder storms. The beacon radio signal may also be interrupted by powerful radio transmitters operating in long wavelength bands.
Charts and Navigational Aids
Positions obtained from charts are not always as accurate as your navigator (due to environmental changes, the dates of charts, and datum offsets if the datum differs from the one in use by the navigator). The position of a floating aid can differ due to tide, set and drift
Compass Safe Distance
1 meter.
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12 | About GPS Navigation
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Functional description | 13
2 Functional Description
The MX510 and MX512 Navigation CDU models are generally described in this manual as MX51x Control and Display Unit (CDU). Their general operating features are identical and will be described in common details in this manual. Specific model number will be called in areas where they differ from one another.
CDU Congurations
The MX510 and MX512 Navigation System is available in several configurations. Please refer to the Auxiliary Unit Information section of the manual to view sample screens to identify your particular model. Described below are the various configurations and their differences.
Basic CDU conguration
The MX510 has two (2) bidirectional user NMEA ports while the MX512 has nine (9) bidirectional user NMEA ports. Both models have one (1) high-speed Local Area Network (LAN) port and two USB ports. The basic GPS navigation model includes the CDU and a smart GPS antenna
Basic MX510/512 GPS Configuration
MX51x DGPS
The MX51x DGPS model is supplied with a smart DGPS antenna with built-in Beacon receiver (MX521A B-10 DGPS). The smart DGPS antenna unit can achieve better than 1 meter accuracy in areas with good beacon differential coverage.
Basic MX51x DGPS Configuration
MX51x/BR
The MX51x/BR configuration is a dual-control system where two MX51x (one operating as a master and the other as a slave) is supplied. Only one MX521A smart DGPS antenna is required. The antenna unit is connected only to the master unit. The two MX51x CDUs communicate via the high-speed LAN port.
LAN port must be setup before enabling this feature. The units can be connected together using an ethernet crossover cable (when connected directly) or through a hub/ switch/router. See section 4 of this manual for setup details.
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14 | Functional description
MX51x BR Beacon and Remote Configuration
MX51x/BRIM (Backup Receiver Integrity Monitor)
The MX51x/BRIM is an enhanced Dual-Control configuration wherein two MX51x CDUs and two MX521A smart DGPS antennas are supplied. The two MX51x units are connected in dual-control configuration but they operate as independent navigator units with dedicated antennas. The Integrity Monitoring (IM) feature is a software option that works in the MX51x CDU hardware.
This configuration allows data to be shared between two remotely separated stations (i.e. navigator’s station and helmsman’s station), with independent access to various information fields. The purpose of this configuration is to enable each CDU to calculate its own position, then check the operational status of the other GPS receiver. The GPS receiver with the best overall operational status provides the system position. This is a fully redundant system, with self-recovery capabilities. The Integrity Monitor function can be set to Automatic switch over or forced to the any of the units for position and navigation functions.
LAN port must be setup before enabling the IM feature. The units can be connected over an ethernet crossover cable or through a hub/switch/router. See section 4 of this manual for setup details.
MX51x/BRIM System Configuration
MX51x/MUC (Multi Unit Control)
The MX51x/MUC is a configuration wherein three or more MX51x units are networked together using a hub or a router switch. In a MUC network one unit is assigned as a master unit and the rest are either slaves or repeaters. Slave units are able to display navigation data and control the master unit remotely while the repeaters can only display navigation data. A maximum of five MX51x units can be a member of the MUC network, one master unit, one or two slaves and the rest as repeaters. Please refer to the installation notes section of this manual for the MUC diagram.
1) In general, this manual will refer to all versions of this product line simply as the MX51x CDU, CDU or navigator. Where distinction between models is necessary, the particular model type will be indicated.
2) Four MX Smart antenna models are compatible with the MX51x CDU. They are the MX421-10 (GPS or DGPS), MX525A (DGPS only), MX521A (GPS or DGPS ) and MX575A DGPS Compass.
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DGPS Beacon System | 15
3 DGPS Beacon System
As Maritime Safety Administrations, Navy, and Coast Guard Organizations realize the limitations of standard GPS positioning, many have begun installing DGPS Beacon Stations. While an understanding of this system is not necessary for operating receivers with internal beacon receivers, you may want to read on to have a better understanding of how your receiver is capable of achieving the high levels of accuracy made possible by this network of transmitters.
The DGPS Beacon System is comprised of three segments: the reference station, Integrity Monitor (IM) equipment located at the beacon site, and the Navigator equipment located on board the user’s boat or vehicle. The DGPS beacon system design is illustrated below.
Because of the limited range of the beacon transmitters, typically 150 to 400 km, the corrections generated by the reference station are always valid for users who can receive the correction signals and maintain a 5 meter or better accuracy figure.
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16 | DGPS Beacon System
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Keypad & Display Description | 17
4 Keypad & Display Description
The MX510 and MX512 keypad operation and traffic light indications are identical. The Traffic Lights on the right side of the display will tell you how your navigator is operating.
You need to take care in reading the trafc light indications, as there are overlapping possibilities between the GPS and DGPS modes. If you are unsure of the current operating mode, select the CFG function key and scroll down to the DGPS selection. If the DGPS mode is selected to anything other than Off, then follow the Differential GPS Trafc Light Operation. If the DGPS mode is selected to Off, then follow the GPS Trafc Light Operation.
Differential GPS Trafc Light Operation:
Red Flashing
Not tracking satellites (no position update). This is normal for the first 2 minutes or
so when turning the unit on. The very first time you turn the unit on, or if the memory is reset or lost, this condition is also normal. Allow the receiver to run for at least 20 minutes under these circumstances. If it still does not change to Red Solid, refer to the troubleshooting section in the page 110 of this manual. An icon similar to the one at left will be displayed in the upper left corner of screen.
Red/Yellow Solid
Dead Reckoning . When normal GPS or DGPS operation is not available, this LED sequence
is provided to quickly identify the DR navigation mode. A DR indicator is also displayed on all screens.
Red Solid
Tracking one or more satellites (no position update). This is also normal for the first 2 minutes or so when turning the unit on. The very first time you turn the unit on, allow the receiver to run for at least 20 minutes after changing to Red Solid to collect an almanac from the satellites, regardless of whether a position fix has been calculated or not. This is also a normal indication if the HDOP is greater than 10, if the receiver is tracking too few satellites, or for other reasons as well. Read the GPS and DGPS function screens for more information.
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18 | Keypad & Display Description
Yellow/Green Solid
GPS position update; DGPS corrections are not being received. You may see this
from time to time during normal operation. It usually occurs when the beacon signal is not available (either it is being blocked by terrain or a local object or you are out of range of the transmitter) and/or you are tracking 3, 4, or 5 satellites, and the satellites have poor geometry relative to your position. The condition will normally go back to green solid, when it picks up another beacon station. The factory default level for dropping DGPS corrections is 600 seconds. During this period, your positioning information maybe less than optimal, and position accuracy may be off by as much as 5 meters. Press the GPS function key and refer to the DGPS section in this manual for guidance if this light condition occurs.
Yellow Solid
DGPS position update with poor HDOP value. You may see this from time to time
during normal operation. It usually occurs when you are tracking 3, 4, or 5 satellites, and the satellites have poor geometry relative to your position. The condition will normally go back to Green Solid when it picks up another satellite or the geometry of the existing satellites improves. The factory default level for this indication is with an HDOP of 4 to 10. During this period, your positioning information is less than optimal, and position accuracy may be off by as much as 5 to 10 meters. You can press the GPS function key and refer to the GPS section in this manual for guidance if this light condition occurs.
Green Solid
DGPS position update with HDOP value less than 4. This is the normal operating
condition. Position accuracy is normally better than 3 meters. Keep in mind that position accuracy is only as good as the corrections received, their age, your distance from the reference station, and the geometry of the satellites. This is the normal operating condition and no icon will be displayed.
GPS Trafc Light Operation:
Red Flashing
Not tracking satellites (no position update). This is normal for the first 2 minutes or so
when turning the unit on. The very first time you turn the unit on, or if the memory is reset or lost, this condition is also normal. Allow the receiver to run for at least 30 minutes under these circumstances. If it still does not change to Red Solid, refer to the troubleshooting section in the page 110 of this manual. An icon similar to the one at left will be displayed in the upper left corner of the screen.
Red/Yellow Solid
Dead Reckoning . When normal GPS or DGPS operation is not available, this LED sequence
is provided to quickly identify the DR navigation mode. A DR indicator is also displayed on all screens in the upper left hand corner of the display.
Red Solid
Tracking one or more satellites (no position update). This is also normal for the
first 2 minutes or so when turning the unit on. The very first time you turn the unit on, allow the receiver to run for at least 20 minutes after changing to Red Solid to collect an almanac from the satellites, regardless of whether a position update has been calculated or not. This is also a normal indication if the HDOP is greater than 10. The HDOP value can be read in the GPS function screens.
Yellow Solid
GPS position update has a poor HDOP value. You may see this from time to time
during normal operation. It usually occurs when you are tracking 3, 4, or 5 satellites, and the satellites have poor geometry relative to your position. If you are patient, the condition will normally go back to Green Solid when you pick up another satellite or the geometry of the existing satellites improves. The factory default level for this indication is with an HDOP of 4 to 10. During this period, your positioning information is less than optimal, and position accuracy may be off by as much as 10 to 30 meters. You can press the GPS function key and refer to the GPS section in this manual for guidance if this light condition occurs.
Page 21
Keypad & Display Description | 19
Green Solid
GPS position update with HDOP value less than 4. This is the normal operating
condition. Position accuracy is normally between 3 to 5 meters, but can be out as much as 30 meters. Keep in mind that position accuracy is always only as good as the geometry of the satellites and the navigation information provided by the satellites. This is the normal operating condition and no icon will be displayed.
The Display:
The MX51x uses a 6.4” monochrome quarter VGA LCD display. It provides optimum viewing in virtually all angles and lighting conditions. To change the display contrast or backlight condition, select the CFG function key and scroll down to the Lighting menu choice. Refer to the CFG section of the manual for a complete description of menu
options. The
DAY/NIGHT dual function key allows you to quickly change between day
or night time screen viewing. Information displayed on the screen is normally divided into windows, similar to what
you might see on a normal computer. Each screen has a page number located in the upper left hand corner (i.e.
). These page numbers are there to help you find the information you need, and to help us guide you on the rare occasion that you might request our assistance.
With the exception of a portion of the PLOT and MOB screens which use the UP and DOWN arrows to zoom in or out, all of the screens require that you press the EDIT (Edit Mode) function key before you are allowed to change data on the screen. You can use the cursor key (the big key with the arrows pointing in four directions) to move between edit fields or menu choices on most screens when in the edit mode. When you are not in the edit mode, you can use the cursor to scroll between screens (i.e. NAV1, NAV2, NAV3, ...) or to move up and down on screens (like the menu bar in the CFG screen).
+ Virtual Softkeys:
The Edit key activates or deactivates the virtual softkeys and edit fields within any screen where editing is appropriate. You will quickly learn that this is an important operating feature in the unit. Press the EDIT key when you want to start editing a screen and again when you have finished editing. If after editing you press a function key and nothing seems to happen, check to make sure you didn’t accidentally alter your information and press the EDIT key to end editing. Some edit screens provide an Escape softkey. If you decide for some reason that you don’t want to use the changes you have made, highlighting the Escape softkey and pressing the ENT key will restore the original information. However, once you press the EDIT key, all changes are accepted and the original data is lost.
The virtual softkeys at the bottom of the display are so named because their purpose changes from one menu (or screen) to the next. All of the screens require that you press the EDIT (Edit Mode) function key before the virtual softkeys can be accessed. Then use the LEFT and RIGHT cursor arrows to highlight the desired virtual softkey and press the ENT key (refer to pg. 21) to choose it. Don’t forget to press the EDIT function key when you have finished to exit.
Page 22
20 | Keypad & Display Description
The Function Keys:
The MX51x has 17 function keys. These keys are used to directly access various navigation, positioning, GPS, configuration and other screens. One function key is used to mark your present position, and to activate the Man-Over-Board feature when depressed for a few seconds.
The ten function keys with alphanumeric designations are described in the following chapters. The MARK/MOB keys and the GOTO keys are described below.
The function keys are also used in the edit mode to enter alphanumeric information for route and waypoint names.
Programmable Keys (F1 to F4)
These keys are like the memory buttons in car radios. They can be programmed to quickly bring-up a particular screen that you use all the time. To memorize a particular screen, all you need to do is first select the desired display using the regular function keys, then press and hold the F1 (or another F# key) for about 3 seconds until a series of short beeps is sounded. The function key is now programmed. The next time you wish to bring up that particular screen, just press the F# key momentarily. You may reprogram any F# key at will.
Mark / MOB Key
This dual function key when pressed momentarily marks your present position and stores it at the next available waypoint location in the waypoint bank. A window pops up on the screen to confirm your key depression, and to tell you where the mark position is being stored. You can go into the WPT menu and edit the coordinates or description later. The CDU is also capable of performing this function from a remote contact closure input via the AUX Cable (MOB/Event) wire. Refer to section 5 - Installation section of this manual for interface instructions.
When depressed for 3 seconds, this function key activates a number of automatic MOB functions:
Most obviously, it brings up an
- MOB1 plot screen. This is an automatic scaling screen which selects the best zoom level to display your present position and the MOB position. In addition, the MOB position is displayed in the upper left corner, so that you can quickly read the coordinates to others who may be available to render assistance. This plot screen also provides the range and bearing back to the MOB position, as well as your present course over ground.
The MOB position, date and time are stored in the Waypoint Bank for future
­reference (e.g. log book entries).
Navigation data output on the NMEA ports (i.e. BWC and BWR), are changed to
­reflect the current urgent situation. This way, other interfaced equipment can also help guide you back to the MOB position. When the MOB condition is canceled via a MOB screen softkey, the NMEA sentences will automatically revert to the active route information. Don’t forget to cancel the MOB so your interfaced equipment
will read the correct data!
The MOB function key and remote MOB input are disabled from subsequent
­activation, until the MOB Cancel softkey is selected.
Other functions such as Position and Navigate can still be accessed; however, the
­screen will revert to the MOB Plot screen after 30 seconds. Bearing and distance information in these other screens relate to the MOB position, not the next waypoint in the active route, until MOB is canceled.
To cancel a MOB condition, make sure you are in the MOB Plot screen. Press the EDIT function key, then press the ENT key to select the Cancel MOB softkey.
The MX51x CDU is also capable of performing the MOB function from a remote switch. If the switch is pressed for less than 2 seconds, the action is registered as a Mark Position. If the switch is pressed for 3 seconds, the MOB function is activated. Refer to the Installation section of this manual for interface instructions.
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Keypad & Display Description | 21
GOTO
This function key allows you to quickly create a route from your present position to waypoint or a route. This single waypoint route can use an existing waypoint from the Waypoint Bank, or you can quickly create one by either defining the appropriate coordinates or specifying a range and bearing.
Be careful when you use this selection, as it will erase your current active route when it creates the new one. Read through the ROUTE and PLOT sections of this manual to find other ways to use this key within an active route.
POWER ON/OFF
This DUAL function key turns the unit on and off. When depressed momentarily while the unit is on, you will be prompted to select a YES or NO softkey to confirm your action. This is known as a software power off.
If the operating program should hang up for any reason, you can also perform a hardware power off by pressing the power key for about 5 seconds. When the GPS is turned off using this technique, you can not reapply power for 10 seconds.
An occasion may arise when you need to reset the memory back to the factory default values. Doing this will cause the CDU to lose all of your dened settings, as well as all 2,000 of your waypoints and routes. If you hold down the “CLR” button when power is applied for about six seconds, then the memory will be cleared.
CLR (CLEAR)
This function key is probably the least used of all the function keys; however, it can save you some otherwise frustrating editing time. This key allows you to erase or clear one character at a time. If you hold it down, it will erase the entire line that the cursor is currently on.
Holding this button down for 6 seconds will clear the entire memory of the MX51x CDU.
CURSOR
This function key is the most used of all the function keys. When pressing the EDIT key to activate the virtual softkeys, the LEFT and RIGHT arrow cursor keys are used to scroll left and right from one softkey to the next. It also allows you to move between function screen pages (by pressing left or right). In addition, many of the edit fields allow you to use either the cursor key or the Change softkey to scroll through or select from predetermined choices.
ENTER
This key is often used just like the EDIT and the CURSOR keys. When pressing the EDIT key to activate the softkeys, the ENT key is used to select the particular virtual softkey of user’s choice.
DAY/NIGHT View
Press this key to toggle between night or day view. When depressed for a few seconds, this dual function key allows you to quickly switch
between two predetermined display lighting conditions, day or night time settings. You may also control the day/night view using the CFG => Lighting menu.
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22 | Keypad & Display Description
FUNCTION Keys
You might have noticed that above and below each primary function key are numbers and letters. These numbers and letters are used when you are in the edit mode. You will find that they are most often used in the RTE, WPT, and CFG screens, but they are used in other screens as well. If you are trying to enter text, simply locate the desired letter and press the appropriate function key repeatedly until the appropriate letter or number appears. If you accidentally go past the desired letter, repeat pressing the function key and the letter will come up again. You can toggle between upper and lower case characters by pressing the function key for a long period.
You will also find that some screens allow you to input symbols into the text fields. These symbols are selected through a softkey selection where symbols are allowed. Don’t
forget to press the ‘EDIT’ key to get out of the edit mode.
Another helpful feature on this CDU is that successive depressions on the function key (when not in the edit mode) allows you to page through all of the screens available for that particular function. You can accomplish the same thing by selecting a function and using the left and right arrows on the cursor key (which is sometimes faster). In addition, the software remembers which screen you used last for each function. Each time you reenter a function (e.g. you go from PLOT to NAV), you will enter the last screen you viewed for that function. You can change this setting in the CFG 1 Operation.
Use the associated function key to access the international character desired (i.e. A for Æ). The international characters supported are:
ABC = Ä, Å, Æ, À, Ç DEF = É, È GHI = Í MNO = Ñ, Ó, Ö STU = Ú, Ü Use the CFG key when in the edit mode to cycle through these other optional characters. ‘ “ $ & ! ( ) ? / + - ° . , :
Automatic Identication System (AIS)
This is a special function key used for diplaying AIS related data. TThe AIS feature is a licensed option in the MX512 model. Contact your dealer or NAVICO to purchase the AIS license.
When this key is pressed, the message “AIS Not Available on this Version” will be displayed.
Navigate
There are six NAV screens. NAV1 through NAV3 are primary navigation screens. NAV4, NAV5, and NAV6 only provides data if appropriate sensors (e.g. wind speed/direction
logs, NMEA compass, etc.) are interfaced and activated on the CDU. The NAV functions are highly interactive with the RTE1 screen, and a number of CFG menu selections.
The RTE1 screen provides the active route for the NAV screens. It also maintains a waypoint pass log for you. One other important feature in the RTE1 screen that you need to be aware of is that the up and down arrow softkeys control which waypoints are skipped (down arrow) and which are restored (up arrow) for your current route. The ETA information is configured in the RTE 1 screen. Refer to the Route section of the manual for a full description.
The following CFG menus directly impact the NAV functions:
COG SOG - sets the filtering time for the displayed values.
• Datum - sets the reference datum for your present position and waypoints in the
• active route. WGS84 is the preferred Datum for most navigation calculation including AIS.
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Keypad & Display Description | 23
GPS Offset - sets an offset for calculating the GPS antenna position if you can’t • physically locate the antenna exactly where you want it (e.g. over the centerline of the boat).
Navigation - sets a variety of important functions and alarms
•
Rhumb line or Great Circle navigation
­Range units: nautical miles, nautical miles and meters (when under 1000 meters),
­nautical miles and feet (when under 1000 feet), statute miles, statute miles and meters (when under 1000 meters), statute miles and feet (when under 1000 feet), kilometers, or kilometers and meters (when under 1000 meters)
Cross-track error limit and alarm control
­Waypoint pass criterion and distance: bisector line, perpendicular line, complex
­(combination of bisector line and perpendicular line), distance to waypoint, or manual
Waypoint Approach distance
­Autopilot alarm control
­Position - sets to either Lat/Lon or UTM, and some alarm limits. There is an
­optional software package available to setup a user grid as well. The option is explained in the Position, and CFG Position sections of this manual.
Time - sets appropriate offsets, and 12 or 24 hour clock mode.
­Various NMEA input controls for sensors (i.e. speed log, wind instruments, etc).
-
You may have figured out by now that you will need to pay close attention to the configuration screens. The good news is that you probably have to setup the CDU one time and you can save the configuration data in a USB memory stick (or flash RAM) for future use. The memory stick will allow you to easily restore or clone another MX51x to your special configuration.
Dead Reckoning
The MX51x CDU is capable of Dead Reckoning (DR) calculation when appropriate compass/heading and speed log sensors are connected and activated. Refer to the NAV4 and CFG sections of this document.
When the CDU is in the DR mode a DR icon is displayed in the upper right corner of the screen.
NAV1 - The Panorama Screen
This screen is designed to give you a unique 3 dimensional look at the active route you are to follow. It is typically referred to as a runway view because you can see navigation markers, your course line, the cross-track error lines, and waypoint flags as you pass them. Take a look at the example below.
If you don’t see the information described in this screen, you will need to create a route in RTE1 screen first.
The somewhat triangular shape at the bottom center of the screen represents the bow of the boat. Icons on the screen are always related to this object. The two dash lines extending from the bottom of the screen towards the center of the screen represent your cross-track error limits. The dotted line extending from the bow of the boat icon represents your course line. The course line changes direction at the flags, which represent your waypoints, and continues through to the end of the active route you entered in RTE1. Notice that the cross-track error lines end at the first flag. As you pass the flag and start the next leg of your course, these lines will be redrawn to reflect the course change. Icons that you see left and right of your course are navigation markers that you define in the
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24 | Keypad & Display Description
Waypoint Bank (WPT1) where a symbol is used as the first character of the waypoint description. The Panorama and Plot screens will automatically place these navigation markers on the screen as you approach them.
The degree values that you see are your Course Over Ground (COG), as calculated by the GPS receiver’s position fix to position fix, and Bearing (BRG) from your present position to the waypoint. The speed value is your Speed Over Ground (SOG) as calculated by the GPS. The distance value displayed as the Range (RNG) is calculated from your present position to the waypoint. The Time-To-Go (TTG) is the calculated time it will take you to reach the waypoint, based on your Waypoint Closure Velocity (see NAV4 description).
To keep the screen from jumping around when you are stopped, the screen freezes the graphic representation when your speed is under 0.5 Kn in DGPS mode or 2.0 Kn in GPS mode. Once you get underway, your course details will update appropriately.
You will see a RL or GC symbol in the upper right corner of the display indicating whether you are navigating under Rhumb Line or Great Circle. This is set in the CFG Navigate menu.
If you press the EDIT key, the Panorama Display Option screen will allow you to customize the information presented.
View
• - allows you to adjust the display for a Close (zoomed-in) or a Far (zoomed-out) representation of your route.
Show Waypoints
• - allows you to turn waypoints which are not part of the active route on and off.
Show Active Route
• - allows you to turn the course line on or off on the display (assuming a symbol is entered for the first character of the waypoint name).
Show Off Track Limit
• - allows you to turn the cross-track error limit lines on or off on the display.
Show Data Window
• - allows you to select between the two NAV 1 display types depicted at the beginning of this section, one in which the data is displayed in various parts of the graphic screen, the other in which the data is displayed in a separate window to the left of the graphic screen.
If you drift outside of your cross-track error limit and you decide not to return to your original course line, you can reset your course line from your present position to the waypoint by highlighting the Reset XTE softkey from the display, and pressing the ENT key.
The Skip Waypoint softkey allows you to skip the waypoint you are presently going to, and advance to the next waypoint. For example, if you were under way and nearing waypoint 5 and you decide you want to go on to waypoint 6 now, press the EDIT key, highlight the Skip Waypoint softkey, and press the ENT key. If you make a mistake and you want to go back (unskip) to waypoint 5, you can do this by the following:
Go into the
1 RTE1 screen.
Press
2 EDIT in the RTE1 screen.
Highlight the
3 Route Control softkey and press ENT.
Highlight the up arrow softkey (fourth from the left) and press
4 ENT once.
Press the
5 EDIT key again. Refer to the Route section of this manual for more details about skipping and unskipping
waypoints.
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Keypad & Display Description | 25
NAV2 - Basic Steering Information
The NAV2 screen provides the bearing (BRG) and range (RNG) to the waypoint you are approaching in large bold characters. Below these, you will see your actual Course Over Ground (COG) and Speed Over Ground (SOG). The bottom portion of the screen provides cross-track error information. Again, if you don’t see the information described here on your screen, you will need to create a route in RTE1 first (refer to the Route section of the manual).
In the bottom half of the window, the vertical line in the center represents your course line. The checkered area on the left and right side of this area represents the out of bounds or beyond the cross-track error limit area. Whenever the boat is left or right of the course line, the corresponding checkered area changes to solid black, indicating the side of the course line that you are on. The number next to the course line is your calculated cross­track error. The numbers in the lower left and right hand corners indicate the cross-track limit you set in the CFG1 menu under Navigation. You will notice that the cross-track error limit lines are slanted, just as they were in the Panorama screen. So if the boat is off to the right of the course, and the bow is pointing straight up, you are actually traveling away from the course line. Keep the bow pointed toward the top of the course line, and you should be able to maintain your course without a lot of drift. The BRG and COG values will confirm this for you, when executed properly.
From time to time, you might drift off course and decide not to return to your original course line. If you drift outside of your cross-track error limit, you can reset your course line from your present position to the waypoint by pressing the EDIT key and selecting Reset XTE softkey then ENT. This will save your autopilot from having to work hard to get you back on course. Press the EDIT key again to get back into normal display mode.
In addition, if you decide you want to skip this waypoint, and go on to the next one, Press the EDIT key, and select the Skip Waypoint softkey then ENT. Press the EDIT key to exit. If you skip one waypoint manually, and the CDU starts skipping more waypoints by itself, you probably need to change your Waypoint Pass Criteria in the CFG1 Navigate menu. Refer to the Route section of this manual for more details about skipping waypoints.
Just as in NAV1, you will see an RL or GC symbol in the upper right corner of the display indicating whether you are navigating under Rhumb Line or Great Circle. This is set in the CFG1 Navigate menu.
NAV3 - Expanded Navigation Information
The NAV3 screen has four windows. The upper left window is a smaller version of NAV2 screen. Please read the previous section for a detailed description of this window. The two windows below this one indicate the current date, time and the ETA to the end of your route for the time zone currently entered. The date and time format is set in the CFG1 Time menu. The ETA and TTG (in the right hand window) are filtered over time, so allow the filtering to settle when you first make a course or speed change. The filter time is controlled in the RTE1 ETA Setup screen. The Time-To-Go (TTG) value on the bottom of the right hand window expands from HH:MM:SS to HHHH:MM:SS when the time to go is greater than 99:59:59. Also, these values are calculated by using your Waypoint Closure Velocity (WCV), not your SOG. WCV as described in short detail in the
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26 | Keypad & Display Description
NAV4 section which follows.
You will find the right hand window to be a helpful tool. In addition to identifying the waypoint you are currently approaching, it identifies the waypoint at the end of the next leg. The really unique feature of this screen is the graphical representation of your actual course line approach angle relative to the next leg of your course. This approach angle is continuously updated in real time and will help you setup for course changes.
Reset XTE and Skip Waypoint, described at the end of NAV2 , is also available in NAV3.
NAV4 - Sensor Input Navigation
The NAV4 screen applies the wind instruments, speed log, compass, and depth sounder inputs from external sensors to your active route, as appropriate. You can setup the sensors in the CFG1 screen. Section 5 of this manual will guide you through the interfacing capabilities of the CDU.
Use the following CFG1 menus to set this screen up: Compass - Sets the input port number, compass type (Gyro, MX575 or Magnetic),
compass deviation table, and the input NMEA 0183 record from which to derive the compass information. The NMEA 0183 record should be specified by the user, because several NMEA 0183 records may contain compass information. This provides you the capability of knowing the compass source exactly. The CDU only accepts NMEA 0183 formatted data for the compass input. Synchro or stepper gyro compasses are not compatible.
Depth - Sets the input port number, units of measure for depths and tide data, sensor
offset, alarms, and the input NMEA 0183 record from which to derive the depth information. The NMEA 0183 record should be specified by the user, because several NMEA 0183 records may contain depth information. This provides you the capability of knowing the depth source exactly.
Log - Sets the input port number, sensor type (pulse or NMEA 0183), alarms, and a
correction factor (if needed).
Set & Drift - automatically calculated based on GPS derived values. Wind - Sets the input port number, units of measure, sensor offset, alarms, and the
input NMEA 0183 record from which to derive the wind information. The NMEA 0183 record should be specified by the user, because several NMEA 0183 records may contain wind information. This provides you the capability of knowing the wind source exactly.
This screen is divided into four windows. The window on the top left provides details relating to the True Wind Angle (TWA), True Wind Speed (TWS) and True Wind Direction (TWD), which are taken from the NMEA 0183 record of MWV or VWR. If the wind information is given in relative terms, the CDU calculates true values using available GPS course and speed information to make the necessary adjustments. Refer to the Glossary for definitions on Apparent/True Wind Angle/Speed/Direction. To the right of the wind information is your Velocity Made Good (VMG) towards the waypoint. The VMG data is filtered to show the average speed from the last waypoint to your present position towards the next waypoint. VMG is calculated from GPS data. The CDU will also use the above
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Keypad & Display Description | 27
data to calculate your speed parallel to wind and can output the VPW NMEA 0183 data sentence to other on-board instruments.
The window below the wind data provides information relating to your course and speed. You will find the Course Over Ground (COG calculated by the MX421 smart GPS antenna), Heading (HDG, your NMEA 0183 compass input), and Heading To Steer (HTS) data on the left side of the window. HTS data is calculated by considering your Heading, minus COG and adding BRG to the waypoint. In doing so, the software considers any Set to be included in the HDG value. If there is no Set, your HDG should be equal to COG. Set and Drift is calculated from GPS and your Speed Log (NMEA 0183 VHW record or Pulse input) and Compass (NMEA 0183 HDM, HDT, or VHW) input or an operator manual input.
On the right side of the lower left window you will find the Speed Over Ground (SOG, calculated by MX421 smart GPS antenna), Speed Log (LOG, the NMEA 0183 or pulse speed input), and the Waypoint Closure Velocity (WCV). WCV reflects the real time velocity from your present position and course towards the next waypoint. The VMG and WCV are calculated from GPS data. Refer to the diagram below to see a graphical representation between VMG and WCV.
Present
Position
SOG 13 Kn
Beginning Waypoint
Next
Waypoint
Original Course Line
Actual
Course
Line
VMG
Towards
Waypoint
10
Kn
BRG
Effect of
Set & Drift
6297_01B.100
Present Position
SOG 13 Kn
WCV 9 Kn
Beginning Waypoint
Next
Waypoint
Original Course Line
BRG
&
RNG
Extended
Course
Line
WCV is based on
Extended Course
Line (COG), SOG,
BRG & RNG to WPT
Effect of Set & Drift
HTS to
counter
Set & Drift
Velocity Made Good:
Distance to
Waypoint Travelled
Waypoint Closure Velocity:
Below this information, you will find your Set and Drift data, which is calculated using GPS and your compass and speed sensor inputs.
Reset XTE and Skip Waypoint, described at the end of NAV2, is also available in NAV4.
The window on the right displays depth information coming from the depth sounder unit using the NMEA 0183 record of DPT, DBS, DBT, or DBK. These are setup in the CFG1 Depth screen, refer to the Configuration section of this manual for full details on depth data.
Below the depth data you will find the next route leg vector, the Range to the waypoint and Time To Go data, explained in the NAV3 section.
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NAV5 - Compass Display Screen
The NAV5 screen displays the Heading and Rate of Turn values of the MX575 Satellite Compass (or Gyro) in digital and compass row formats. In addition, it also displays the position, COG, SOG, BRG, and RNG. This screen can be accessed by pressing the NAV key repeatedly until you reach the desired NAV screen.
NAV6 - Compass Display Screen
The NAV6 screen displays the Heading and Rate of Turn of the MX575 in large digital and tape measure style readouts. In addition, it also displays the Set and Drift. This screen can be accessed by pressing the NAV key repeatedly until you reach the desired NAV screen.
The NAV1 - NAV5 screens are not active until the antenna is detected.
Route
There are two RTE screens. The NAV functions are highly interactive with the RTE1 screen. The RTE2 screen allows you to create a pool of predetermined routes that you might use often, so you need only create the route one time. Routes are created from waypoints. All waypoints are stored in the Waypoint Bank, regardless of which function is used to create them. Waypoints are either created in the Waypoint Bank (WPT1), created by the GOTO function, selected from the PLOT screens in conjunction with the GOTO function, or from New Waypoints that can be defined in the Route Insert menu (and simultaneously stored in the route and the Waypoint Bank).
We recognize the diverse needs of professional users. We have designed the route features to be very flexible to meet a wide range of users’ requirements by allowing up to 2000 waypoints to be stored between all of the routes. You can create up to 99 routes, with any number of waypoints, providing the maximum number of 2000 waypoints between all routes is not exceeded.
The Route (RTE) function serves two purposes:
The RTE1 screen provides all of the current, or active waypoint navigation data to
1
the Navigate and Plot screens and is referred to as the Active Route. Therefore, whenever you begin a new trip or voyage, you should erase the previous voyage’s waypoints in this screen, then insert the new waypoints or routes (from RTE2) for the new voyage. If you want to store the waypoints from the previous active route for future use, you can copy these waypoints in the order in which they were entered to the Route Bank in the RTE2 screen. This is described in the RTE2 - The Route Bank section of this manual. If you do not clear the RTE1 screen (refer to Erasing an Existing Route section of this manual), the RTE1 screen will grow each time you add new waypoints to the route. The route function can hold a maximum of 2,000 waypoints between the routes stored in RTE1 and RTE2.
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Keypad & Display Description | 29
The RTE2 screen provides storage space for up to 100 user dened routes. You 2 can pre-dene routes, or copy new routes from the RTE1 (active route) screen.
Later you can choose individual routes or link two or more routes in the RTE1 screen (refer to Creating a Multi-Waypoint Active Route section of this manual).
When you are nished using the copied route in RTE1, you can erase the route
from the RTE1 screen and the original stored route will remain intact in the RTE2 screen.
The following CFG1 menus directly impact the RTE functions:
Navigation - sets a variety of important functions and alarms.
•
Rhumb line or Great Circle navigation
­Range units: nautical miles, nautical miles and meters (when under 1,000 meters),
­nautical miles and feet (when under 1,000 feet), statute miles, statute miles and meters (when under 1,000 meters), statute miles and feet (when under 1,000 feet), kilometers, or kilometers and meters (when under 1,000 meters)
Waypoint pass criterion and distance: bisector line, perpendicular line, complex
­(combination of bisector line and perpendicular line), distance to waypoint, or manual.
Waypoint Approach distance
­Autopilot alarm control
-
Position - sets Lat/Lon or UTM and some alarm limits.
• Time - sets time offsets and 12 or 24 hour clock mode (for ETA calculation, and
• waypoint passed time stamp).
RTE1 - The Active Route
The RTE1 screen provides the active route data for the NAV and PLOT screens. It also maintains a waypoint pass log for you. Another important feature in the RTE1 screen that you need to be aware of is that the up () and down () arrow softkeys, displayed when you are in the edit mode under the Route Control softkey, control which waypoints are skipped (down arrow - ) and which are restored (up arrow - ) for your current route.
The CDU will recalculate the route when a navigation mode, either Rhumb Line or Great Circle is selected. You can enter waypoints using different datums into the route
The RTE1 screen is where you are likely to do most of your trip preparation. There are several methods you can use to create routes. You are sure to find one or more methods which meet your needs in the following sections.
Creating a Route Using the GOTO Key:
Using the GOTO function key is the fastest way to create a single leg route. Using this method will cause the existing active route to be erased and overwritten with the new position you define.
From any screen, press the
1 GOTO key.
Press the
2 EDIT key.
Using the left or right arrow keys, highlight the softkey desired and press the 3 ENT key:
Waypoint Number - allows you to choose a waypoint stored in the Waypoint Bank.
This feature is nice to use if you already know the waypoint number that you want to go to and you don’t want to waste time scrolling through the waypoint list. Enter the number of the waypoint, verify that the coordinates are correct, and press the EDIT key to copy the waypoint to the active
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route.
Choose In Bank - allows you to scroll through the Waypoint Bank. Align the
cursor with the desired waypoint and press the EDIT key. The waypoint is automatically inserted into the active route and the unit will revert to the NAV screen, displaying bearing and distance to this waypoint.
Lat. Lon. - allows you to define a coordinate and description, which is also stored at
the next available waypoint location in the Waypoint Bank. Once the coordinates are defined, press the EDIT key to copy the waypoint to the active route.
Bearing Range - allows you to define a coordinate by specifying the bearing and range
from your present position, which is also stored at the next available waypoint location in the Waypoint Bank. After entering the desired bearing and range, press the EDIT key. The newly defined waypoint is copied to the active route automatically.
If you make a mistake, you can use the cursor key to position the cursor over the mistake and overwrite the error.
Use the 9 key to insert a space in the description, if needed. Use the 0 key to select a special character, if needed. International characters are available by selecting the associated function
key. Refer to the EDIT keypad & Display Description section at the front of the manual.
If you decide you don’t want to continue with this function, highlight the Escape softkey and press the ENT key, then press the EDIT key. Make another function key selection (e.g. NAV) and your original route will have been left intact.
Press the
4 RTE function key. You will see two waypoints dened in the center of
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Keypad & Display Description | 31
the screen.
Waypoint 0, the first waypoint, is your Point of Departure, or the position you were at when you created the route. Waypoint 0 is a unique waypoint, in that the CDU internally changes the position of Waypoint 0 to your present position. However, the CDU saves and displays the original coordinates entered when you created the route.
Waypoint 0 is displayed in Inverse Video, that is, white characters on a black background (when in the normal Daylight display mode; see CFG1 Lighting). This indicates that you have already passed this coordinate. The time stamp at the lower portion of the description window indicates when the route was created. If you want to adjust your point of departure position, you can edit Waypoint 0 in the WPT function.
To the right of the coordinate window of Waypoint 0 is a bent arrow. The bend in the arrow is adjacent to the range and bearing between the waypoint you just passed and the waypoint you are approaching. Keep in mind that these are the fixed calculated values between these two coordinates and not the real time changing values that you will see in the navigation screens between your present position and your next waypoint during normal navigation.
Below Waypoint 0 is the waypoint you defined in the GOTO function. Notice that this information is in standard video, black characters on a white background, and that an ETA time is displayed in the same position as the waypoint passed time in Waypoint 0. This indicates that the waypoint has not yet been passed. Remember that the ETA time is filtered over time, so allow a few minutes for the filter to settle when you first get underway or make course and speed changes.
Erasing an Existing Route
To erase the active route:
Select the
1 RTE key until the RTE1 screen is displayed.
Press the
2 EDIT key.
Highlight the
3 Remove softkey and press the ENT key.
Highlight the
4 Erase Route softkey and press the ENT key.
Highlight the 5 Yes softkey and press the ENT key to conrm.
The active route is now erased and ready for new input. If you want to work in other areas of the CDU first, you will need to press the EDIT key to exit the edit mode.
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32 | Keypad & Display Description
Creating a Multi-Waypoint Active Route
There are four methods to create a multi-waypoint route:
Insert By Number
• - allows you to type in or scroll through in numerical order using the cursor key, waypoints that you previously stored in the Waypoint Bank (see WPT later in this manual).
Choose In Bank
• - allows you to sort and scroll through the waypoints stored in the Waypoint Bank (WPT) by various techniques (symbol, date, distance from present position, numerical order, alphabetical order, or search by user defined string). This is a great tool if you can’t remember where you stored the waypoints you want to use.
Insert New Waypoint
• - allows you to define new waypoint coordinates, define a waypoint by using Bearing and Distance from an existing waypoint, and enter them into the route and the Waypoint Bank at the same time.
Insert Route
• - allows you to copy a previously defined route in the RTE2 screen to the active route. This choice is only displayed when one or more routes are defined in the RTE2 screen.
Our experience has shown that you are likely to choose several of these methods at any given time to create a route. You can mix any of these routines to create routes, amend routes, or insert waypoints in the middle of existing routes. The software is designed to be as flexible as possible to meet your changing needs.
The following four sections are examples of how to use each of the four basic functions outlined above. We encourage you to experiment using all of the methods available to find the one that best meets your needs. As long as you are working in the RTE1 screen and sitting at the dock, you are not going to do any damage (e.g. erase waypoints in the Waypoint Bank or routes in the Route Bank), so have some fun and find out how helpful this GPS receiver really is.
If you are already comfortable with setting up a basic route, you might want to skip the examples which follow and jump ahead to the Maneuvering Within the Route section later in this section to understand some of the more advanced features of the software.
Insert By Number
The following example assumes RTE1 is empty. Follow the directions in the Erasing an Existing Route section to start with an empty route if you have waypoints in the RTE1
screen.
Select the
1 RTE key until the RTE1 screen is displayed.
Press the
2 EDIT key to enter the edit mode.
Highlight the
3 Insert softkey from the display and press the ENT key. Skip to the
next step if RTE1 is empty. Highlight
4 Insert by Number softkey from the display and press the ENT key.
Use the EDIT keypad to type in the number you want or the beginning number of 5 a range you would like to select from, or use the cursor key to scroll through the previously stored waypoints in numerical order.
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Keypad & Display Description | 33
When you have found the waypoint you want, highlight the 6 Insert this WPT softkey and press ENT.
You can then choose to select another waypoint using the same method, highlight
7
Escape and press ENT to go back one level and use another method to enter waypoints, or highlight Done and press ENT to go back to the main menu.
Don’t forget to press the
8 EDIT key to end your editing.
Choose in Bank
The following example assumes RTE1 is empty. Follow the directions in the Erasing an Existing Route section to start with an empty route if you have waypoints in the RTE1
screen.
Select the
1 RTE key until the RTE1 screen is displayed.
Press the
2 EDIT key to enter the edit mode.
Highlight the
3 Insert softkey from the display and press ENT. Skip to the next step
if RTE1 is empty. Highlight
4 Choose in Bank from the display and press ENT.
Select a waypoint by:5
Highlighting the Sort By softkey and press ENT to arrange the waypoints by a number, name, type, distance, or age (refer to the Waypoint section for a full description), then using the cursor key to scroll through the previously stored waypoints in the Waypoint Bank.
Highlighting the Search for WPT softkey and press ENT. When using this
b
selection you actually spell out the name and or symbols of the waypoints you are looking for and the software will display any waypoint containing that combination of characters or symbols. Refer to the Waypoint section for a full description.
When you have found the waypoint you want, higlight the 6 Insert this WPT softkey then press ENT.
When you are nished, Highlight the
7 Done softkey then press ENT to get back to
the main menu.
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34 | Keypad & Display Description
You can then choose to select another waypoint using the same method, select 8
Escape to go back one level and use another method to enter waypoints, or select Done to go back to the main menu.
Don’t forget to press the
9 EDIT key to end your editing.
Insert New Waypoint
The following example assumes RTE1 is empty. Follow the directions in the Erasing an Existing Route section to start with an empty route if you have waypoints in the RTE1
screen.
Select the
1 RTE key until the RTE1 screen is displayed.
Press the
2 EDIT key to enter the edit mode.
Highlight
3 Insert new Waypoint softkey from the display and press ENT.
Choose either 4 Bearing, Distance or Lat/Lon (Grid Point, or TD if you are using other coordinate systems). Use the EDIT keypad to type in the range and bearing from
the previous waypoint (or present position in the case of the rst waypoint) or the
coordinates you want and their appropriate description. When the information is correct, highlight the
5 Done softkey and press ENT.
You can then choose to enter another waypoint using the same method, select
6
Escape to go back one level and use another method to enter waypoints, or select Done to go back to the main menu.
Don’t forget to press the
7 EDIT key to end your editing.
Insert Route
The following example assumes RTE1 is empty. Follow the directions in the Erasing an Existing Route section to start with an empty route if you have waypoints in the RTE1
screen. To perform this function, you must also have defined a route in the RTE2 screen. The
RTE2 description follows later in the Route section.
Select the
1 RTE key until the RTE1 screen is displayed.
Press the
2 EDIT key to enter the edit mode.
Highlight
3 Insert Route softkey from the display and press ENT.
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Keypad & Display Description | 35
Use the cursor key to scroll through the available dened routes, which are created 4
in the RTE 2 screen, in numerical order. When you have found the route you want, highlight the
5 Insert Fwd or the Insert
Reverse softkey and press ENT. Insert Fwd enters the route from the top of the
dened list into the active route. Insert Reverse enters the route from the bottom of the dened list into the active route so that you can travel down the route in the
reverse direction. You can then choose to select another route using the same method or select
6
another method to enter waypoints. Don’t forget to press the
7 EDIT key to end your editing.
Maneuvering Within the Route
Scrolling
You can use the cursor key to scroll up and down the active route points. You will probably want to do this when you update your log book to indicate when you passed a given waypoint, or when you want to know the ETA to a waypoint other than the one you are currently traveling towards. It is also a good idea to set the cursor at the correct waypoint before entering the edit mode to insert or delete waypoints from the route.
Skipping and Unpassing Waypoints
You are likely to run into an occasional circumstance where you accidentally skipped a waypoint (due to your waypoint pass criteria selection in the CFG1 Navigation screen, or a manual skip in the NAV screens), and you want to switch back to a previous waypoint in the active route. You may also decide at some point that you want to skip the current or subsequent waypoints in the route. The MX51x will allow you to accomplish both of these tasks.
The easiest way to accomplish either of these tasks is to scroll through the route with the cursor key until the cursor arrow is at the bottom of the last waypoint you want designated as passed (that is, white characters on a black background), whether this waypoint was passed several waypoints ago or is yet to be passed. Then press the EDIT key.
Use the up () softkey to unpass or the down () softkey to pass waypoints in the route until the waypoint marked by the cursor is displayed with white characters on a black background (Daylight display, see CFG1 Lighting).
Press the EDIT key to end editing. If for some reason you can’t select the desired waypoint (the screen keeps passing
waypoints you unpassed), you are probably too close to the waypoint. You will need to either change your Waypoint Pass Criteria, change your Waypoint Pass Distance (see CFG1 Navigation), or remove the waypoint from the route.
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36 | Keypad & Display Description
Inserting Waypoints or Routes into an Existing Route
Press the 1 RTE key until the RTE1 screen is displayed. Scroll through the route points with the cursor key until the cursor arrow is at the
2
waypoint you want to insert the new waypoint after.
Then press the 3 EDIT key. The
4 Insert softkey is already highlighted, press ENT.
Highlight
5 Insert by Numb. softkey, press ENT.
Enter the Wpt. # (in this example use number 1).
6
Highlight the 7 Escape softkey then press ENT.
Press the 8 EDIT key to end editing.
Reversing the Active Route
When you arrive at your final destination, you might want to follow the same route home. To quickly accomplish this, simply use the Reverse Direct softkey from the main RTE1 menu.
Press the
1 RTE key until the RTE1 screen is displayed.
Press the
2 EDIT key.
If the previous route is still on the display, highlight the
3 Remove softkey and press
ENT. Otherwise, jump to step 5.
Highlight the 4 Erase Route softkey and press ENT. This will clear the route. Highlight the
5 Insert Route softkey and press ENT.
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Keypad & Display Description | 37
Highlight 6 Insert Reverse softkey, press ENT.
Press the 7 EDIT key to exit.
Notice that you still keep the same orientation on the screen, in other words, you always read from the top of the screen to the bottom of the screen. The waypoints are rewritten in reverse order for you.
ETA Setup
If you choose to use this function, it is probably better to operate the unit in UTC time mode if you are going to cross one or more time zones. Note that the time entered uses the offset to UTC applied in the CFG1 Time display.
The software calculates Estimated Time of Arrival based on how you configure the unit. ETA settings are controlled from the RTE1 screen. To change the ETA settings:
Press the
1 RTE key until the RTE1 screen is displayed.
Press the
2 EDIT key.
Highlight the
3 ETA/SOG Calc. softkey and press ENT.
Highlight the 4 Change softkey and press ENT to select which value you want the CDU to calculate, either E TA based on speed, or speed (SOG) based on desired time and date of arrival.
SOG Based on Arrival Date & Time:
Enter the arrival time and date. Be sure to enter the date as day, month, year, as 1 indicated on the screen.
Highlight the
2 Done softkey and press ENT.
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38 | Keypad & Display Description
In this mode, the actual SOG is compared to the required SOG to meet the specified arrival date and time. The result is given in a percentage (%) value next to the displayed SOG in the NAV screens. If the percentage is below 100, you will arrive late. If the percentage is above 100, you will arrive early.
ETA Based on Speed:
Select a 1 Speed Basis of either GPS SOG, which uses a long lter time (in seconds) that you dene, or Constant, which uses a speed you intend to maintain (you dene the speed).
Highlight the
2 Done softkey and press ENT.
RTE2 - The Route Bank
The Route Bank is a convenient place to pre-program segments of a long voyage, or to program routes that you follow repeatedly. Creating routes for the Route Bank uses the same methods as the Active Route with a few exceptions: you can’t use the GOTO key, and you can’t use the Plotter screen. You can use other routes as a subset to create a new route. Remember, you can always tie routes together in the Active Route by inserting one after another. You will find a Route Name softkey when you first enter the edit mode. The Route Name allows you to clearly identify each route by name, number and symbol when you are viewing the Route Bank from the main menu. To create a route:
Select the
1 RTE key until the RTE2 screen is displayed.
Move the cursor to the route number you want to create or edit.
2
Press the 3 EDIT key. Use the entry methods described in the
4 Creating a Multi-Waypoint Active Route
section.
If you have a route in RTE1 that is not stored in RTE2, you can copy it into the Route Bank by selecting Insert then Insert Route, either in the forward or reverse direction.
Highlight the
5 Escape softkey and press ENT.
When you are nished adding waypoints, highlight the
6 Route Name softkey and
press ENT.
You can enter any name, number or symbol you want this route to be identified by.
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Keypad & Display Description | 39
Highlight the 7 Done softkey and press ENT when you are nished editing the name.
It is a good idea at this point to select Lock Route so that way you don’t accidentally erase the route.
Finally press the
8 EDIT key to exit the edit mode.
The RTE1 screen is not active until the antenna is detected.
Waypoint
The Waypoint Bank (WPT) is a list of waypoints that you created using various methods. The most common method is by manually entering Lat/Long coordinates. Another convenient method is by using the Mark function key to saved your present position. Waypoints can also be downloaded from external waypoint data devices, such as plotters or ECDIS.
While entering waypoints in the list is rather straight forward, the MX51x provides helpful waypoint management tools that should be mentioned before giving examples.
Below are six methods of managing the waypoint bank:
Sort By Number
• - displays the waypoints in waypoint numerical order, starting with waypoint 0.
Waypoint “0” is a computer waypoint. The MX51x automatically loads the present position in this waypoint when a new destination is selected to go to.
Sort By Name
• - displays the waypoints by name in alphabetical order.
Sort By Type
• - displays the waypoints by symbols, numbers, then names.
Sort By Distance
• - displays the waypoints which are closest to your present location first.
Sort By Age
• - displays the waypoints entered most recently, first.
Search For WPT
• - allows you to type a symbol or name and the screen displays all waypoints having the exact match of the name you type. If you are unsure of the complete name, type a few of the characters you know are in the name, and the software will display all waypoints having the corresponding characters.
For example, if you are looking for the LA HARBOR ENTRANCE and you enter HAR, the screen will display all waypoints with these three characters in this exact order.
Creating and Editing Waypoints
When editing a waypoint, you are always prompted to select the appropriate datum. You might occasionally see a prompt warning you that the waypoint is used either in a stored route or the active route. You ultimately have the final decision whether to continue editing
the waypoint, or exiting this waypoint by pressing the EDIT key again to exit the edit mode.
Creating and editing waypoints is easy.
Press the
1 WPT key to display the WPT1 screen.
Press the
2 EDIT key to bring up the softkey.
When the waypoint bank is empty, the softkey
3 “Make New WPT” is highlighted,
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40 | Keypad & Display Description
press ENT to select it. Scroll left to “
4 Make new WPT” and press ENT to start entering L/L coordinates for
waypoint #1 or if you want to modify an existing waypoint, highlight the “Edit this WPT” softkey then press ENT.
a Make New WPT - Select Lat/Lon (W84), Lat/Lon Datum, or Range Bearing.
Lat/Lon (W84) - allows you to enter coordinates in the WGS 84 datum. This choice takes you directly into the coordinate input screen. Go to step 5.
Lat/Lon Datum - allows you to choose a datum (see the list in the screen sample above) from the more than 110 available Datums. Highlight the desired datum and highlight the Select softkey then press ENT. Refer to Appendix A -
Datum List for a complete list of datums and their WGS-84 offset. Go to step 5.
Range Bearing - allows you to define new waypoint coordinates from an existing
waypoint in the Waypoint Bank. When you use this feature make sure you align the cursor next to the from waypoint number before you highlight the Make New WPT softkey and press ENT.
Once you have entered the range and bearing, the CDU calculates the coordinates. You can then enter a text description or modify the waypoint number as described in step 6 below. Go to step 6.
Edit This WPT
b - Select Accept to use the WGS 84 datum or highlight Change
and press ENT to choose from the more than 110 available Datums. Highlight the desired datum and highlight the Select softkey then press ENT. Refer to Appendix A - Datum List for a complete list of datums and their WGS 84 offset.
Enter the appropriate coordinates using the cursor key and numeric keypad.5
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Keypad & Display Description | 41
Move the cursor down and modify the waypoint number if you wish. Otherwise the 6 CDU assigns the next available number, beginning at 1.
Range & Bearing Lat/Lon
This feature allows you to create a range of waypoints within a particular area. For example, you could put all of the waypoints for fishing spots near Catalina Island in the range of 500 to 530, all the waypoints for Cabo San Lucas in the range of 575 to 600, etc.
Move the cursor down, and enter the symbol and name information (optional). Use
7
the techniques described in the EDIT keypad & Display Description section at the front of this manual.
The following international characters are supported by cycling through the
standard letter function key: ABC = Ä, Å, Æ, À, Ç DEF = É, È GHI = Í MNO = Ñ, Ó, Ö STU = Ú, Ü
Press the CFG key when in the edit mode to cycle through these additional
characters: ‘ “ $ & ! ( ) ? / + - ° . , :
About one second after you stop scrolling through the alpha characters, the cursor
will automatically advance to the next space.
Highlight the
8 Done softkey and press ENT.
When you are nished, highlight the
9 Lock this WPT softkey and press ENT to avoid
accidentally erasing the waypoint in the future.
Locked waypoints can not be overwritten by waypoints downloaded from the NMEA port or saved by the Mark or MOB functions.
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42 | Keypad & Display Description
Then press the 10 EDIT function key to end editing.
You can press the EDIT key when you finish editing a waypoint. This is treated
the same as highlighting the Done softkey and press ENT. Highlighting Done then
press ENT allows you to continue editing and entering other waypoints.
Waypoint Lock/Unlock
Locking a waypoint forces the user to consciously unlock the waypoint before it can be modified and prevents the waypoint from being overwritten when waypoints are being input over the data port. Note that when a waypoint received on the data port has the same waypoint number as a locked waypoint already stored in the CDU, the waypoint data received on the data port is disregarded and lost. Waypoints are locked by one of three methods: 1) selecting Lock this WPT when in the waypoint bank edit mode for a particular waypoint; 2) selecting Lock this WPT when in the waypoint bank edit mode; or
3) incorporating a waypoint into a route stored in RTE2 and then locking the route. Waypoints that are locked from the waypoint bank are indicated by a closed padlock in the
display. Waypoints that are party to a locked route will display a message indicating that waypoint can not be modified.
To Lock a Waypoint
Press the
1 WPT key to display the WPT1 screen.
Scroll to the desired waypoint.
2
Press the 3 EDIT key.
Highlight the 4 Lock this WPT softkey then press ENT.
Press the
5 EDIT key.
To Unlock a Waypoint
Press the
1 WPT key.
Scroll to the desired waypoint.
2
Press the 3 EDIT key.
Highlight the 4 Unlock this WPT softkey then press ENT.
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Keypad & Display Description | 43
Press the 5 EDIT key.
If you simply want to modify the waypoint, Edit this WPT will be displayed on the
bottom left of the screen.
To Lock all Waypoints
Press the
1 WPT key.
Scroll to the desired waypoint.
2
Press the 3 EDIT key.
Highlight the
4 More softkey and press ENT.
Highlight the
5 More softkey again and press ENT.
Highlight the 6 Lock all WPT softkey and press ENT.
Press the
7 EDIT key.
To Unlock all Waypoints
Press the
1 WPT key.
Scroll to the desired waypoint.
2
Press the 3 EDIT key.
Highlight the
4 More softkey and press ENT.
Highlight the
5 More softkey again and press ENT.
Highlight the 6 Unlock all WPT softkey and press ENT.
Press the
7 EDIT key.
Removing Waypoints
Unlocked waypoints can be overwritten manually or by waypoints received on the NMEA port. Waypoints that are contained within a stored route can not be removed until they are removed from the stored route in the RTE2 screen. If you try to remove a waypoint stored in a route, a warning will be displayed indicating the first route a waypoint is stored in.
If the waypoint you want remove is locked, refer to the Waypoint Lock/Unlock section for a step by step procedure, and then return to this section.
To remove a waypoint:
Press the
1 WPT key.
Scroll to the desired waypoint.
2
Press the 3 EDIT key.
Highlight the
4 Remove softkey then press ENT.
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44 | Keypad & Display Description
There are three methods to remove a waypoint: 5 Remove this WPT, Remove
Unused, and Remove Range:
If you select
a Remove this WPT, the waypoint will immediately be removed from
the Waypoint bank. If you select
b Remove Unused, the CDU will delete all waypoints that are not
locked or stored in a route. You will be prompted to conrm the deletion:
If you select c Remove Range, the CDU will delete all unlocked waypoints that are not stored in a route between a range of waypoint numbers that you enter. You
will be prompted to conrm the deletion:
Press the 6 EDIT key.
Moving waypoints
This feature allows you to create a range of waypoints within a particular area. For example, you could put all of the waypoints for fishing spots near Catalina Island in the range of 500 to 530, all the waypoints for Cabo San Lucas in the range of 575 to 600, etc.
To move a waypoint or range of waypoints:
Press the
1 WPT key.
Press the
2 EDIT key.
Highlight the
3 More softkey then press ENT.
Highlight the
4 Move softkey then press ENT.
5
To move a single waypoint, enter the original waypoint number on the a First WPT Number and Last WPT Number.
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Keypad & Display Description | 45
To move a range of waypoints, enter the rst and last waypoint numbers to b
move on the First WPT Number and Last WPT Number. Keep in mind that the CDU will sort these waypoints numerically and all waypoints between the entered numbers will be moved to the new location.
Enter the waypoint number where you want the rst waypoint moved to in
6
Destination WPT Number.
If the destination waypoint number is already being used, you will be prompted to either overwrite the first waypoint (Yes) and each subsequent waypoint that is to be overwritten, confirming each waypoint one at a time, overwrite all the waypoints (Yes To All), not overwrite any waypoints (No); or Escape back to base softkey menu. Don’t forget to press the EDIT key to exit.
3. Make New WPT
4a. Use WGS-84 Datum. Select Lat/Lon (W84)
4b. Use Datum other than WGS-84. Select Lat/Lon Datum
5. Enter Coordinates. Press the cursor down arrow.
7. Modify WPT Text & Symbol (Optional). Press the Done softkey.
6. Modify WPT Number (Optional). Press the cursor down arrow.
Enter desired range and bearing. Press the cursor down arrow.
4c. Create a new WPT based on a Range & Bearing from an existing WPT. Select Range Bearing
Select desired datum from displayed list. Press Select.
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46 | Keypad & Display Description
Saving or Restoring Memory Data Using a USB Device
The MX51x is equipped with two sealed USB connectors, one in front and one in the back of the unit. They can be used to conveniently save or restore navigation data such as waypoints, routes, plot tracks and configuration settings using a USB memory stick.
It is important that the USB stick be formatted rst to Windows FAT 32 before using it with the MX51x. The USB formatting procedure is available in the Installation section of this manual.
To store memory data in the USB device, do the following:
Insert the USB device in the MX51x.
1
Press the 2 CFG key.
Scroll down to USB menu.
3
Press the 4 EDIT key.
The
5 Change softkey is highlighted at this point, press ENT key.
Wait for the MX51x to recognize the USB device before proceeding. It will indicate 6
the device type, status and memory space available when it is done checking the
USB device.
Highlight “Data type”7 then press ENT to change to Waypoints, Routes, Plot, Cong
or All. Using “All” will save everything.
Highlight
8 Save to USB softkey then press ENT. It will take a few seconds to save
the data. The MX51x will tell you when the process has been completed.
Press the ENT to continue.9
Before removing the USB, set the USB connected to NO. This is important to 10
prevent causing damage to the USB device or the data in it. To restore memory data from the USB device to the MX51x, do the following:
Insert the USB device in the MX51x.
1
Press the 2 CFG key.
Scroll down to USB menu.
3
Press the 4 EDIT key.
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Keypad & Display Description | 47
The 5 Change softkey is highlighted at this point, press ENT key.
Wait for the MX51x to recognize the USB device before proceeding.
6
Highlight “Data type”7 then press ENT to change to either Waypoints, Route, Plot,
Cong or All. Using “All” will restore everything.
Highlight
8 Restore softkey then press ENT.
It will pop-out a dialog window asking if this is what you want to do. Answer YES 9
(0r NO) by pressing the ENT key (or scroll to NO if you are not sure and press the
ENT key).
Depending on the amount of data, it may take 5 to 10 seconds or longer to
10
complete this action. The display will advise you when it is done restoring.
Before removing the USB, set the USB connected to NO. This is important to 11
prevent causing damage to the USB device or to the data in it.
Downloading Waypoints & Routes to Other Devices
The MX51x can download all stored waypoints, routes and configuration settings to other NMEA 0183 compatible devices which accept the WPL, RTE, and Rnn data sentences. These sentences are controlled in the CFG1 screen NMEA Out (1 or 2) for the identifier given below.
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48 | Keypad & Display Description
The CDU outputs these sentences in the following format:
Rnn - Routes:
Waypoint identifiers, listed in order with starting waypoint first, for route number “nn”. The active route in the CDU is always route zero, but in the Rnn sentence the route number can be transmitted as either route 00 or 01.
Rnn is NMEA version 1.5. Use of GPRTE is recommended to comply with NMEA version
2.1.
field#: 1 2 3 4 1 1 1
4 5 6
$GPRnn,cccc,cccc,cccc,.....,cccc,cccc*hh<CR><LF>
Explanation / actual use: 1: nn = active route number, 00 or 01 can be set to 00 or 01 (default 00). 2 - 15: 14 field sequence of route waypoint IDs. 16: Checksum can be set on or off (default on).
RTE - Active Route:
Waypoint identifiers, listed in order with starting waypoint first, for the identified route. Two modes of transmission are provided: “c” indicates that the complete list of waypoints in the route are being transmitted; “w” indicates a working route (active) where the first listed waypoint is always the last waypoint that has been reached (FROM), while the second listed waypoint is always the waypoint that you are currently heading toward (TO). The remaining list of waypoints represents the remainder of the route.
RTE can be sent as version 2.1 and 2.0.
field#: 2 3 4 5 6 1 1 1
5 6 7
$GPRTE,x,x,a,cccc,cccc,.....,cccc,cccc*hh<CR><LF>
Explanation / actual use: 2: Total number of messages being transmitted (a single route may require
the transmission of multiple messages). A maximum of 11 waypoints are
transmitted in each messages. 3: Message number. 4: Message mode: c = complete route, all waypoints, w = working , 1st listed
waypoint is ‘FROM’, 2
nd
is ‘TO’ and remaining are the rest. c/w can be set to c
or w (default w). 5: Route identifier, always 00 (Active Route only). 6 - 16: Waypoint identifiers, (less than 11 waypoints may be in the message).
The number of remaining waypoints can be set to 1, 2 or “all” (default all)
shortening the drawn track on the plotter. 17: Checksum can be set on or off (default on).
WPL - Waypoint Location - NMEA 0183 Standard:
Latitude and Longitude of specified waypoint. The content of this sentence will normally be the position of the next waypoint in the route.
The CFG1 NMEA out WPL has a special “Send All” option. Selecting this feature will send all the waypoints in the Waypoint Bank once, independent of the WPL sentence setup as ON or OFF. This format conforms to the NMEA 0183 standard.
WPL can be sent as version 1.5, 2.0 or 2.1. field#: 2 3 4 5 6 7
$GPWPL,llll.ll,a,yyyyy.yy,a,cccc*hh <CR><LF>
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Keypad & Display Description | 49
Explanation / actual use: 2 & 3: Waypoint Latitude, North or South, N/S number of decimals can be set to 2, 3,
4 or 5 (default 2). 4 & 5: Waypoint longitude, East or West, E/W number of decimals can be set to 2, 3,
4 or 5 (default 2). 6: Waypoint identifier. 7: Checksum can be set on or off (default on). The WPL record can also contain the description information when Include Waypoint Names
in the CFG1 NMEA, Details is selected.
WPL - Waypoint with Symbols & Description - NMEA 0183 Expanded:
Latitude and Longitude of specified waypoint. The content of this sentence will normally be the position of the next waypoint in the route.
The CFG1 NMEA out WPL has a special “Send All” option. Selecting this feature will send all the waypoints in the Waypoint Bank once independent of the WPL sentence setup as ON or OFF. This format does not strictly conform to the NMEA 0183 standard, and may not work with all equipment. It is provided for your use to store data on a PC using normal ASCII text editors.
WPL can be sent as version 1.5, 2.0 or 2.1. field#: 2 3 4 5 6 7
$GPWPL,llll.ll,a,yyyyy.yy,a,cccc xxxxxxxxxxzzzzzzzzzz*hh <CR><LF>
Explanation / actual use: 2 & 3: Waypoint Latitude, North or South, N/S number of decimals can be set to 2, 3,
4 or 5 (default 2). 4 & 5: Waypoint longitude, East or West, E/W number of decimals can be set to 2, 3,
4 or 5 (default 2).
6. Waypoint identifier; 4 place numeric waypoint number, followed by 1 space,
followed by 10 characters for the top line of the description, followed by 10
characters for the bottom line of the description. When this field is output, you
may see spaces between the xxx and zzz. These are “fill characters” and are
necessary to fulfill the 10 character count to maintain character placement
when read back into the CDU. 7: Checksum can be set on or off (default is on).
Downloading Waypoints to a Personal Computer
You can use any terminal or communications program to download or upload waypoints and routes to or from the CDU and a PC.
Set the PC to: 4800 baud 8 bits
1 stop bit no parity no flow control
When sending data to the CDU, it must be sent in block form, followed by (with an appended) CR (carriage return) and LF (line feed). Normal communications programs, like Windows
3.1 or 3.11 Terminal are sufficient to get the job done. Unfortunately, Hyperterminal in Windows 95 doesn’t provide as simple a terminal emulation program as Windows 3.11, and
we have found it unreliable. We suggest that a third party terminal program be used with Windows 95 (or higher).
Using Windows Terminal, do the following (from the Program Manager):
Connect the CDU’s port (1or 2) to the PC’s communications port (Refer to the
1
Appendix G of this manual). On the CDU press the
2 CFG key.
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50 | Keypad & Display Description
Scroll down the menu to 3 NMEA Out 1 (or which ever port number is required). Press the
4 EDIT key.
If the port is already Active (
5 Yes), write down which NMEA sentences are set to
Yes, then set all of the NMEA sentences to No. You need to do this to record just
the waypoint data. If the port is not Active (No), change it to Yes. Scroll down to the
6 WPL record and change it On.
Highlight the
7 Details softkey and press ENT.
Set
8 Include Waypoint Names to either No or Yes. Refer to WPL -Waypoint Location
- NMEA Compliant and WPL - Waypoint With Symbols & Description - NMEA 0183 Non-Compliant sections in this manual to determine the correct format for your
purpose. Set
9 Decimals in Position to 4.
Highlight the
10 Done softkey and press ENT.
Set the
11 WPL record to Off (you will need to turn the data off while setting up the
computer). On the computer, double click on the
12 Accessories icon.
Double click on the
13 Terminal icon.
Click on the
14 Settings menu.
Double click on the
15 Communications menu item and make the following settings: 4800 baud
8 data bits 1 stop bit Parity - none Flow Control - none Connector - Com1 (or Com2, depending where the external interface is) Parity Check - blank Carrier Detect - blank OK
Click on the16 Transfers menu. Double click on the
17 CDU Text File menu item and make the following settings.
[give the file a name.txt] [select a location (folder) to store the file] OK
On the CDU, you should still be in edit mode on
18 CFG1 NMEA Out 1 with the cursor
ashing on Off at the WPL record. Press the Send All softkey. When all the waypoint sentences are sent, click on the
19 Stop button on the PC.
Press the
20 EDIT key on the CDU to exit the edit mode.
Uploading Waypoints from Other Devices
The CDU will accept waypoints from any device which follows the WPL formats identified earlier in the Waypoint section. The first two characters following the $ can be any NMEA defined talker ID. You do not have to calculate and include the checksum; however, you must end each data record with a carriage return and line feed. If you do include the checksum at the end of the data record, the CDU will verify the checksum. If the checksum is invalid, the waypoint will be rejected.
Waypoints received on the data port will be stored to the waypoint location specified in the WPL record. If the waypoint location specified in the WPL record is already occupied, the CDU will overwrite the existing waypoint (if it is unlocked). If the existing waypoint is locked, the WPL record received on the input port will be ignored and dropped.
The CDU will only recognize waypoints from one input port at any given time. This port is defined in CFG1 => WPT & RTE In.
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Keypad & Display Description | 51
Uploading Waypoints from a Personal Computer
You can use any terminal or communications program to download or upload waypoints and routes to or from the CDU and a PC.
Set the PC to: 4800 baud
8 bits 1 stop bit no parity no flow control
When sending data to the CDU, it must be sent in block form, followed by (with an appended) CR (carriage return) and LF (line feed). Normal communications programs, like Windows
3.1 or 3.11 Terminal are sufficient to get the job done. Unfortunately Windows 95 and new Windows O/S doesn’t provide a basic terminal emulation program; therefore, a third party
program is required with Windows 95 and above. Using Windows Terminal, do the following (from the Program Manager):
Using an RS-232 to RS-422 convertor, connect the CDU’s port 1 or 2 to the PC’s
1
communications port. On the CDU press the
2 CFG key until CFG1 screen is displayed.
Scroll down the menu to
3 WPL Input.
Press the
4 EDIT key.
Set the
5 Transducer Connected to Yes.
Set the
6 Data Input Port No. to 2.
Press the
7 EDIT key.
On the computer, double click on the
8 Accessories icon.
Double click on the
9 Terminal icon.
Click on the
10 Settings menu.
Double click on the
11 Communications menu item and make the following settings: 4800 baud
8 data bits 1 stop bit Parity - none Flow Control - none Connector - Com1 (or Com2, depending where the external interface is) Parity Check - blank Carrier Detect - blank OK
Click on the12 Transfers menu. Double click on the
13 Send Text File menu item and make the following settings: [select the correct file name.txt]
[select the correct location (folder) for the file] check the Append LF box OK
When all the waypoint sentences are sent, press the 14 WPT key and scroll through the list to ensure all the waypoints transferred properly.
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52 | Keypad & Display Description
Mark / MOB
This is a dual function key that either stores your present position, date and time at the next available waypoint location in the Waypoint Bank or when pressed continuously for 3 seconds, calculates a MOB range and bearing to a saved spot (See MOB section on page
58). A window pops up on the screen to confirm your key depression, and to tell you where the Mark position is being stored. You can go into the WPT menu and edit the coordinates or description later. This key function is disabled for 2 seconds after each depression.
The cross-hair (⊕) symbol to the left of the date in the Waypoint Bank indicates that the Mark or Event key created this waypoint. Note that you can also select the cross-hair (⊕) symbol from the various symbols for other waypoints when editing waypoints.
The CDU is also capable of performing this function from a remote contact closure input via the AUX Cable “MOB/Event” wire. Refer to the Installation section of this manual for interface instructions. Contact closure on the two input pins for less than 2 seconds causes a Mark position to be generated. Contact closure on the two input pins for longer than 2 seconds causes a Man Over Board condition to be generated.
The marker stores the position of the antenna location. Keep this in mind if you are trying to pinpoint items such as buoys, crab pots, etc. For some special applications such as these, you may need to locate the antenna at the point on the boat or ship where you need to make this exact measurement.
GOTO
Using the GOTO function key is the fastest way to create a single leg route. This method will cause the existing active route to be erased and overwritten with the new position you define.
From any screen press the
1 GOTO key.
Press the
2 EDIT key.
Select the waypoint determination method you want:3 Waypoint Number - allows you to choose a waypoint stored in the Waypoint Bank,
where you enter the waypoint number.
Choose in Bank - as used in the Route function (refer to Route - Choose In Bank
section of the manual), allows you to view waypoints in the Waypoint Bank as
a list.
Lat. Lon., UTM- allows you to define a coordinate and description, which is also
stored at the next available waypoint location in the Waypoint Bank.
Bearing Range - allows you to define a coordinate by specifying the bearing and
range from your present position, which is also stored at the next available
waypoint location in the Waypoint Bank.
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Keypad & Display Description | 53
If you make a mistake, you can use the cursor key to position the cursor over the mistake and overwrite the error.
Use the DGPS key or cursor key to insert a space in the description, if needed. Use the CFG key to select a special character, if needed. To activate the GOTO waypoint, press the
4 EDIT key. A warning is briey displayed
indicating that the active route will be replaced with the GOTO route.
If you decide you don’t want to continue with this function, highlight the Escape softkey and press ENT, then select another function key (e.g. NAV) and your original route will have been left intact.
Press the RTE function key. You will see two waypoints defined in the center of the screen.
Waypoint 0, the first waypoint, is your Point of Departure, or the position you were at when you created the route. The CDU saves and displays the original coordinates, date and time when you created the route in Waypoint 0.
Waypoint 0 is displayed in Inverse Video, that is, white characters on a black background (when in the normal Daylight display mode; see CFG Lighting). This indicates that you have already passed this coordinate. The time stamp at the lower portion of the description window, indicates when the route was created.
To the right of the coordinate window of Waypoint 0 is a bent arrow. The bend in the arrow is adjacent to the range and bearing between the waypoint you just passed and the waypoint you are approaching. Keep in mind that these are the fixed calculated values between these two coordinates and not the real time changing values that you will see in the navigate screens between your present position and your next waypoint during normal navigation.
Below Waypoint 0 is the waypoint you defined in the GOTO function. Notice that this information is in standard video, black characters on a white background, and that an ETA time is displayed in the same position as the waypoint passed time in Waypoint 0. This indicates that the waypoint has not been passed yet. Remember that the ETA time is filtered over time, so allow a few minutes for the filter to settle when you first get underway or make course and speed changes.
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54 | Keypad & Display Description
Plot
The PLOT1 screen displays graphic information around the boat at your present position. The boat always remains in the center of the screen.
If you define some of your navigation markers in the Waypoint Bank with a symbol in the first character position, the navigation symbol will show up in relation to your planned course on the plot screen, just as it does in the NAV1 Panorama screen. In addition to the graphic details provided by the CDU, the Plot screens provide basic navigation information, zoom-in/out capability and scaling factors for the display from around 10 to 20 meters, depending on your latitude, out to 128 nautical miles. You will find these feature very helpful in many ways, and we will provide you with a couple of ideas on how to make good use of the PLOT function after the screen description which follows.
The Plot screens do not show your route and cross-track error lines when in Great Circle Navigation mode.
The following CFG menus directly impact the PLOT functions:
Navigation - sets a variety of important functions and alarms.
• Rhumb Line or Great Circle navigation
­Range units: nautical miles, nautical miles and meters (when under 1,000 meters),
­nautical miles and feet (when under 1,000 feet), statute miles, statute miles and meters (when under 1,000 meters), statute miles and feet (when under 1,000 feet), kilometers, or kilometers and meters (when under 1,000 meters)
Waypoint Pass Criterion and distance
­Waypoint Approach distance
­Autopilot alarm control
­Cross-track error limits
-
COG / SOG Filter Settings. •
Take a quick look at both screens. They both have a graphical area to the right, and a text data area to the left.
In the PLOT screen the UP arrow key is the Zoom-out key; the DOWN arrow key is the Zoom-In key. Each time you depress one of these arrow keys, you scale by one-half or by double the graphical area. If you look to the top of the screen, just right of the page number, you will see a number in a white square. This is the scale of the graphic window based on the units selected in CFG1 Navigation. Now look along the left and right edge of the graphic window, you will see some vertical black and white dash marks (these are harder to see at small scales like 1 and 2 or at large values such as 64 or 128). Each solid dash mark represents 1 nautical mile. A broken dash mark indicates 1/100th of a nautical mile when you are zoomed in at low scale. You will find your bearing and range to the next waypoint.
The CFG1 Navigation menu allows you to display fractions of the major unit (nautical miles, statute miles, or kilometers) ranges less than 1000 in alternate units of feet or meters.
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Keypad & Display Description | 55
PLOT 1 - Relative to Boat
The information in PLOT1 is always relative to your present position. The boat always remains in the center of the screen and the bearing and range are always from your present position to the next waypoint identified in RTE1.
Customizing the Display
There are a number of display options available, press the EDIT key to modify the screen to your needs.
Highlight the Display Options softkey and press the ENT key. The following choices are available:
Show Boat
• - Yes is the default condition, which places the boat icon in the middle of the screen. No places the boat in a Compass Rose in the upper right corner of the screen (see the diagram below), where your direction is indicated by the boat in the Compass Rose. The boat’s position is then indicated by an X in the center of the screen.
Show All Waypoints
• - Yes is the default condition, which displays all waypoints, where the first character of the description is a symbol, in its proper location relative to the boat’s position. No causes none of the waypoints to be displayed.
Show Active Route
• - Yes is the default condition, which causes the active route (course lines) and its waypoint symbols to be displayed. No causes the course lines not to be displayed. Note that these lines can only be displayed in Rhumb Line navigation mode (see CFG1 Navigation).
Show Recorded Track • - Yes is the default condition, which causes the course you have already traveled to be displayed. No causes the traveled course not to be displayed.
Show Off Track Limit
• - Yes is the default condition, which causes the active route cross-track error lines to be displayed. These are only displayed for the leg of the course you are presently on. If you reset your cross-track error, these lines are redrawn to reflect the course change (see NAV2). No causes the cross-track error lines not to be displayed. Note that these lines can only be displayed in Rhumb Line navigation mode (see CFG1 Navigation).
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56 | Keypad & Display Description
Show Lat/Lon Grid • - No is the default condition, which causes the coordinate grid not to be displayed. Yes causes the Lat/Lon grid to be displayed (regardless of positioning reference system selection in CFG1 Position). Note that the grid is only displayed at the 4 Nm scale or lower.
Automatic Zoom • - No is the default condition, which causes the displayed scale to be controlled by you. Yes causes the boat icon to be placed along one edge of the screen and the next waypoint flag to be placed along the opposite edge of the screen. As you approach your waypoint, the screen will automatically zoom in on your course, then expand back out after you pass the waypoint and start the next leg of your course.
If you highlight the Return softkey and press ENT, then highlight the Track Plotter softkey and press ENT, you will access the recorded track options.
Selecting Erase Track then pressing the ENT key allows you to clear your recorded track. You can keep a portion, say the last mile or two, of your recorded track if you like, by specifying the range after you highlight the Erase Track softkey and press ENT. Highlight Erase Now and press ENT to confirm your action. Highlight Escape and press ENT to return the previous screen without erasing or EDIT to abort this process.
Selecting Record Track then pressing ENT allows you to define how your course is saved. Choosing not to save your track may free the processor up to run other functions a little bit faster; however, you are not likely to notice any difference in performance unless all data ports are near their full throughput capacity. You also have three different levels of track saving capability: Normal, Fine, and Detailed. The software saves each calculated position coordinate to draw the lines for the plot screen. There are a finite number of plot points which can saved in memory, before the CDU begins overwriting the first set of plot points. If you are traveling a long distance at a high rate of speed (say over 10 knots) you probably will want to use the Normal selection, which only stores a plot point when your direction changes. If you are doing some tight maneuvering or station keeping tasks, you will probably want to use the Detailed selection, which stores a position every 0.5 meters. The Fine selection stores a plot point every 7 meters.
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Plot Screen Use Examples
Station Keeping
There may be a time when you want to maintain your position at a given location in open water. Some applications for this need may be:
Staying over a dive wreck.
• Staying over a fishing hole.
• Recovering an oceanographic survey point.
•
If you are placing and recovering crab pots along a course line, you can enter your course in the RTE1 screen, then place the marker at each crab pot in turn.
You can also select WPT Pass Criterion: Distance to WPT in the CFG1 Navigation screen and set the WPT Pass Distance: 0.00; or set the WPT Pass Criterion to Manual.
By doing this and putting the coordinate you want to maintain in the RTE1 screen, you will always get the bearing and distance to the waypoint in the PLOT1 and NAV screens, regardless of your angle of approach. Note for the plot example above, we turned off the cross-track error lines, the active route, and track saving to keep the screen from getting cluttered while drifting.
Grid Search
If you are attempting to search a given area, you can use the PLOT1 screen to view your progress and help maintain your proper separation. You can also use the RTE1 screen’s
Insert New WPT feature in conjunction with the CFG1 Navigation, WPT Pass Criterion: Distance to WPT (set the WPT Pass Distance: to the smallest acceptable value) to create
the search pattern you want to follow. In the RTE1 screen, highlight Insert New WPT and press ENT to define the coordinates of the first waypoint. Then use the Insert New WPT softkey to define subsequent range and bearing coordinates from your original position. This technique allows you to quickly define your search pattern, control the pattern separation, and view your progress along the way. The CDU will prompt you to turn at the predetermined waypoints you defined. This allows you to pay more attention to the task at hand, rather than having to keep a close eye on the GPS receiver.
The PLOT screen is not active until the antenna is detected.
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58 | Keypad & Display Description
Man Over Board
The Man Over Board function key shares the same key with the “Mark or Event” function key. When depressed for 3 seconds, it activates a number of automatic functions described below.
Most obviously, it brings up an MOB1 (Plot) screen. This is an automatic scaling screen. The screen centers on half the distance between your present position and the MOB position. In addition, the MOB position is displayed in the upper left corner, so that you can quickly read the coordinates to others who may be available to render assistance. This plot screen also provides the vital bearing and distance back to the MOB position, as well as your present course over ground.
The MOB position, date and time are stored in the next vacant waypoint memory of the Waypoint Bank for future reference (e.g. log book entries). An MOB symbol is used to denote an MOB waypoint.
The range and bearing in the PLOT, NAV, and MOB screens reect your bearing and range back to the MOB position, not the active route.
NMEA 0183 sentences (i.e. BWC and BWR) and the printer output are changed to reflect the current situation by also indicating the bearing and range back to the MOB position. This way, other interfaced equipment can also help guide you back to the MOB position. When the MOB condition is canceled, the NMEA sentences will automatically revert to the active route information. Don’t forget to cancel the MOB so your interfaced equipment will
read the correct data!
The MOB function key and remote MOB input are disabled from subsequent activation until Cancel MOB is selected.
Other functions such as Position and Navigate can still be accessed; however, the screen will revert to the MOB Plot screen after 30 seconds.
To cancel an MOB condition, make sure you are in the MOB Plot screen. Press the EDIT key, then highlight the Cancel MOB softkey and press ENT. Press EDIT again to exit the edit mode.
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Remote MOB
The MX51x is capable of performing the MOB function from a remote contact closure input via the AUX (8-pin) cable. If the contact closure is made for 3 seconds, the input is registered as a MOB Position. Refer to the Installation section of this manual for wiring interface instructions.
Auxiliary
There are eight Auxiliary screens described in this section:
AUX1 - Alarm Log
AUX2 - Speed Graph
AUX4 - Sun Almanac
AUX5 - Moon Phases
AUX6 - Batteries
AUX7 - Unit Information
AUX10 - Current Tide Display
AUX11 - Tide Table Port List
AUX1 - Alarm Log
All alarms are registered in this screen, whether or not they have been corrected, until the log is erased or the log is full. When the log is full, the oldest alarms are overwritten. Alarms with an asterisk (*) next to the alarm number have not been corrected and can not be reset until they are corrected.
Reset Log clears the alarm log entries, except for any alarm conditions which have not been corrected and any alarms which have occurred since the uncorrected alarm.
AUX2 - Speed Graph
The graph scales automatically to the speed you are at. You can zoom out to the last 56 minutes or in to the last 3.5 minutes. It is a handy tool if you are trying to maintain a certain speed.
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60 | Keypad & Display Description
AUX3 - Not Used
AUX4 - Sun Almanac
This almanac provides the sunrise and sunset times for a given day and location. You can enter another date or location of interest by pressing the EDIT key, and editing the appropriate date and/or place.
AUX5 - Moon Phases
There are no edit functions available here. Moon phases are given in approximately one week increments and include all dates for new, half, and full moon. You change the year displayed by pressing the up or down cursor keys.
AUX6 - Batteries
This display is where you reset the Lithium battery age. Press the EDIT key and highlight the Reset Age softkey then press ENT after you replace the Lithium battery. Refer to the Installation section of this manual for instructions on replacing the memory backup battery. This battery has a normal life of about 2 years.
AUX7 -Unit Information
This screen indicates the specific CDU model, software version number, the hardware configuration, and the printed circuit board (PCB) serial number of your CDU. If you are having problems with your CDU, refer to this screen for information to provide to customer service personnel.
A special softkey sequence displays sub-version levels, the actual software build date and time, and allows access to a selftest sequence. This information is useful to the technician and our Field Engineers during troubleshooting. To activate the screen press the EDIT key, then press the ‘1’ or ‘NAV’ key three (3) times. Additional information in the Software window will be displayed.
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MX510 AUX7 Screens
MX512 AUX7 Screen
This also activates several engineering screens (the same as turning Engineering Display to Yes in CFG1 Operation). Refer to Appendix B - Engineering Mode for more details.
AUX 10 - Tide
There are two TIDE screens, which are located under the AUX option. The AUX 10 screen displays graphic and digital information about the tide conditions at your present position. This is based on tide table constants that you must enter in the AUX 11 screen, then access through the AUX 10 screen. You can store up to 100 tide tables in AUX 11.
The following CFG1 menus directly impact the TIDE functions:
Depth - sets the measurement units in meters, feet, or fathoms.
•
The Tide function is not active until the antenna is detected.
Current Tide Display
This screen provides the current tide conditions for the tide constants indicated in the upper left hand corner. The number in the upper left corner of the window is the identification number of this table in the British Admiralty Tide Table and in the AUX 11 screen. The name to the right of this number is the port name you entered in the AUX 11 screen.
A graphical representation of the tide is given in the middle of the screen. The tide peak references are given to the right of the High/Low time on the right of the screen. High/ Low tide times are given to the right of the graph. The marker time (indicated by the clock icon or + sign in the graphic area) and tide condition are given below the High/Low tide information.
The tide marker automatically updates to the current time. When the tide marker is in the automatic mode, the cross-hair indicator is enclosed with a circle . You can move the marker forward or backward in time using the up or down arrow keys. Return the marker to the present time by simply highlighting the Marker to Now softkey then pressing the ENT key. When you move the tide marker off of the present time, the marker changes to a + sign. The marker will remain at the manually positioned mark until you either select one of the manual marker control softkeys, or until you highlight the Marker to Now softkey and press ENT - which returns the marker to automatic mode.
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62 | Keypad & Display Description
The tide measurement units can be displayed in meters, feet, or fathoms. Tide units are controlled along with depth units in the CFG1 Depth screen.
To select another port’s tide table, press the EDIT function key, and use the Change softkey to scroll down the list or the Go Back softkey to scroll up the list.
While in the edit mode, you can also move the cursor down to the date and manually change it to any date you are interested in.
Once you have found the table you need, press the EDIT key again to load the table.
AUX 11 - Tide Table Port List
AUX 11 is where you store the constants for the port tide tables you are interested in. You
can store up to 100 tide tables. You can purchase the Admiralty Tide Table Part III book from:
Admiralty Tide Tables and Tidal Stream Tables Published by the Hydrographer of the Navy, United Kingdom Hydrographic Office Tauton, Somerset TA1 2DN United Kingdom
+44-1823-337-900 +44-1823-323-753 Fax 46274 Telex This is a three volume set of tide tables, divided as follows:
Volume 1
Volume 3
Volume 3
Volume 2
6322-01A.600
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Keypad & Display Description | 63
The display provides the required tide table document name and section (Admiralty Tide Tables, Part III) under the Help softkey when in the edit mode as an added aid to help you identify the proper reference material.
Information about the Admiralty Tide Tables port lists and other publications and where they can be purchased is available from the official Admiralty Chart and Publications website at www.ukho.gov.uk.
You may also contact us by fax, e-mail, or phone number provided at the back of this manual if you need information on how to get a copy of the tide table list.
Adding a Port
To add a port to the list, first locate it in Part III of the tide table book, then align the cursor with Add port to the Port List and press EDIT. The Zone in the upper left corner refers to the time zone offset to UTC. Use the name given in the tide table for the name given in the Place portion of the screen. To help you locate this port in the printed volume later, use the table number given in the first column of the manual as the tide number in the CDU.
Then simply follow along the table in the manual and enter the appropriate offsets. The software is setup just like the manual. You may encounter a table that requires seasonal offsets. Where these might
apply, the CDU provides you the opportunity to input a Fixed value or the seasonal Tab l e values. Highlight the first softkey and press ENT to toggle between these two selections. Highlight the second softkey, Edit Table, and press ENT to make the necessary corrections. Highlight the Done softkey and press ENT when you finish the seasonal table, otherwise press the EDIT key when the necessary data is entered.
You can scroll through the entered tables with the up and down cursor keys when you are not in the edit mode. You also have the option to modify or delete a port from the list.
Tide table information is mapped to an area of RAM which is saved during future software upgrades.
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Position
There are three POS screens in the CDU. The POS functions are highly interactive with a number of CFG1 menu selections.
The following CFG1 menus directly impact the POS functions:
COG SOG - sets the filtering time for the displayed values.
• Datum - sets the reference datum for your present position.
• DGPS - sets the internal or external control for RTCM SC-104 corrections which affect
• your position accuracy.
GPS - sets an offset for calculating the GPS antenna position if you can’t physically
• locate the antenna exactly where you want it (i.e. over the centerline of the boat); sets the minimum elevation angle to look for satellites; and in 6 channel models, it also controls the satellite selection process.
Navigation - sets a variety of important functions and alarms (used in other function
• screens), but only the Range units:
nautical miles (Nm) nautical miles and meters (Nm/mtrs) nautical miles and feet (Nm/ft) statute miles (Sm) statute miles and meters (Sm/mtrs) statute miles and feet (Sm/ft) kilometers (Km), or kilometers and meters (Km/mtrs), affect the POS screens.
Position - sets Lat/Lon or UTM, Grid (optional) and some alarm limits.
• Time - sets appropriate offsets, and 12 or 24 hour clock mode.
•
POS1 - Position Display (Large Lat/Long Digits)
This display provides the largest presentation of the Lat/Long coordinates from the CDU. In addition to the coordinates and datum in use, it also displays the current course (COG) and speed (SOG) over ground. There are no edit functions available in this screen unless it is in Demonstration mode. Refer to Appendix E - Demonstration Mode for a full description of this feature.
Latitude & Longitude
UTM
When using the UTM reference system in the polar regions of the Earth, the CDU displays position using the UPS coordinate system instead of invalid UTM coordinates.
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User GRID
User defined grids is an optional feature of the MX51x. When enabled you can set the receiver to provide Easting and Northing position data based on a local grid. The grid function is set up in the CFG1 Position screen. A special license is required to activate this special feature.
POS2 - Position, Altitude, Magnetic Variation, & Time
This screen is divided into three windows. The upper left window provides your position coordinates, the antenna altitude (above Mean Sea Level - MSL), altitude mode (2D or 3D), the magnetic variation (Variation) for your present position, and the present datum in use for calculating your position.
The lower left window displays your course and speed over ground. If the degree symbol has a small ‘c’ under it, this indicates that the magnetic variation and compass deviation table are being calculated and displayed. Refer to the CFG1 Compass section for more details on how to set this up.
The right hand window indicates today’s date and time. This setup is in the CFG1 Time menu. It can be set for UTC time, local 12 hour time, or local 24 hour time. There is an added summer/winter feature to help you remember which direction to set the clock for day light savings in the summer.
There are no editing capabilities in this screen.
POS3 - Position & Log
This screen is divided into three windows. The upper left window is the same as POS2 and provides: your position coordinates, the antenna altitude (above Mean Sea Level - MSL), altitude mode (2D or 3D), the magnetic variation (Variation) for your present position, and the present datum in use for calculating your position.
The lower left window is also the same as POS2 and displays your course and speed over ground. If the degree symbol has a small c under it, this indicates that the magnetic variation and compass deviation table are being calculated and displayed. Refer to the CFG Compass section for more details on how to set this up.
The right hand window indicates your accumulated mileage since the CDU was first turned on.
You will also find two Trip Reset softkeys if you press the EDIT key. Two trip logs are
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provided so that you can log the mileage for:
the current leg or day of your trip; and a the entire trip. b
GPS
Several GPS and DGPS screens are available under the GPS function key. The GPS/ DGPS functions are highly interactive with these CFG1 menu selections:
GPS - sets the lowest elevation at which a satellite will be tracked.
• DGPS - sets the internal beacon receiver to Auto, DGPS only, or Off.
•
GPS1 - GPS Status Screen
There are two windows in this display. The left window has twelve graphic Power Bars representing the twelve GPS receiver channels of the MX smart antenna. The PRN (PseudoRandom Number) under each power bar represents the satellite ID number assigned or being tracked on that channel. The power bars indicate the valid receiver power range from 30 to 50. If a power bar is empty, but a PRN number is labeled under the power bar, then the identified satellite is not currently being tracked.
The right window indicates where the satellites are located in the sky relative to your present position. The outer ring represents 0° elevation. The inner ring represents 45° elevation. The center represents 90° elevation and your present position. Under normal conditions, the best satellites to track are usually between 15 and 75 degrees in elevation.
GPS2 - GPS Health Screen
There are two windows in this display, the top window is a table indicating the satellite health status. The PRN (PseudoRandom Number) ID table is divided into columns and rows. the rows represent the 10s digit of the ID number and the columns represent the 1’ digit of the ID number. The satellite system consists of up to 32 satellites. The ID numbers are called PsuedoRandom Number to denote an ID number for each satellite regardless of the Satellite Vehicle Number (SVN).
To find a particular satellite ID, for example PRN24, go down the left hand column and locate the 10’s digit 2. Then go across the row until you intersect with the 1’ digit in this case 4.
The legend on the right of the table explains what each of the satellite indicators represent.
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You can deselect a particular PRN# by doing the procedure below:
Press the EDIT key.1 Scroll to the PRN number desired.2
Highlight “force unhealthy” softkey, press ENT to change the value to “-”.3 Press the EDIT key to exit.4
GPS3 - Visible Satellites
This screen provides some basic information about the GPS receiver performance just like GPS1 and GPS2 screens. It shows the PRN satellite ID, the signal to noise ratio is indicated under the S/N column, while the EL is the elevation angle and the AZ is the azimuth direction. Typically, S/N numbers between 40-50 are good SNR numbers. Anything below 32 is considered very low and will not be tracked.
GPS4 - GPS Position Uncertainty
This screen presents a bar graph representing the Horizontal Dilution of Position (HDOP) for the past 24 hours. This feature keeps track of how good (or bad) the GPS system was and based on this you can figure out how it will be like the next day if you are navigating within the same general area as the day before. This is a good tool for Hydro surveying work. The HDOP limit designated by the dash line is typically set to 4. If the limit is exceeded, an HDOP alarm will be sounded.
GPS5 - RAIM Status Screen
RAIM (Receiver Autonomous Integrity Monitoring) is a fault-detection feature required by the IMO for commercial vessels. It is another layer of safety that alerts the operator that a condition may exists in the GPS positioning solution that reduces the desired accuracy of the ship’s position. This feature requires at least five or more GPS satellites to operate properly, four satellites or less are considered to be a caution or unsafe RAIM condition. If the statistical RAIM error exceeds a selected limit (100 meters default) a “RAIM Unsafe (R-)” or “RAIM Caution (R?)” alarm will be indicated in the MX CDU. This means that the RAIM estimated position error is equal or greater than the preset limit. The operator is advised to take extra precautionary measures when using the navigation solution until the RAIM indicator switches to “R AIM safe R+” condition. When less than 5 satellites are receivable a “R AIM Caution” will be indicated.
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The GPS5 screen shows the position Lat/Long, height of antenna, HDOP, number of satellites used, the satellite ID number that may cause the statistical error and its bias value. It also shows a table containing the PRN numbers of satellites in use, their residual errors and elevations. Below it is the RAIM Status indicator and time. The RAIM icon is shown on the top-right corner of the display.
Position errors may be caused by unhealthy satellites, incorrect pseudoranges, poor DGPS corrections and excessive atmospheric interference. When the RAIM caution or RAIM unsafe alarm is on, the GPS/DGPS accuracy may be degraded but still usable when navigating in open waters.
When the RAIM option is enabled an icon is posted on the top right corner of all screens.
- means RAIM safe condition
- means RAIM Unsafe condition, position errors exceeded the range limit specified under the CFG/GPS/Accuracy Rng.
- RAIM Caution. Not enough satellites are available for proper RAIM calculation.
The GPS5 RAIM screen works interactively with the GPS/RAIM menu under the CFG key.
Use the procedure below to activate the RAIM feature;
Press the 1 CFG key. Scroll down to the
2 GPS menu.
Press the
3 EDIT key to bring up the cursor.
Scroll down to “RAIM: .....No”
4
Highlight the 5 Change softkey and press ENT to switch it to “Yes”. Scroll down to “Accuracy Rng 10-100m: 100” to change the range. Otherwise you
6
may skip this step. 100 meters is the default value.
The GPS5 RAIM Status screen is available in MX51x models with program version 3.0 and using the MX521 or MX525 antenna sensors.
The MX51x and RAIM feature is an aid to navigation ONLY. Under no circumstances should it be used in lieu of authorized government charts. Its accuracy can be affected by many factors such as equipment defects, environmental conditions, or improper operation. The user is responsible for safe navigation of the vessel. This includes consulting authorized government charts and exercising common prudence and navigational judgement at all times.
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GPS6 - DGPS STATUS
There are several windows in this display, the left hand windows are divided into control and configuration windows. The right hand window displays all the corrections that are being received. Shown below is the GPS6 screen.
MX51x GPS6 Screen
Status will tell you whether the correction data is being decoded is error free or not.
Normally, Status will indicate either DGPS mode Off, DGPS OK, Tracking or Searching (Automatic search mode) or No Lock (Manual tuning mode). DGPS OK indicates that RTCM SC-104 DGPS corrections are being received without errors within the Age Limit set in CFG1 DGPS. These information originates from the MX smart antenna beacon receiver. Searching indicates that the beacon receiver is searching for the appropriate frequency and/or modulation of the beacon transmitter in automatic search mode. No lock indicates that the beacon receiver is not receiving DGPS corrections from the selected station in manual tuning mode. You might see the label Tracking, which indicates that a MSK beacon signal is present but DGPS corrections are not being received. This is usually caused by high noise on the beacon receiver or external device.
If you press the EDIT key, you can select between Automatic beacon search mode, Manual beacon tuning mode, or Off. When the receiver is in the Manual tuning mode, you can use the cursor key to scroll down into the large window below Station Selection and edit the Reference Station name. The name you enter will always be associated with the frequency to which you programmed the receiver. If you move to another region that uses a frequency and name you previously entered, the receiver will display the previously entered name. You can enter a new name for any manually tuned frequency at any time.
Use the cursor key to move down the screen again and program the frequency you desire. The receiver will automatically update the Station ID. Once the beacon station transmits its location, the MX51x will calculate the distance between the reference station and the receiver, otherwise this will be blank. You can usually find current beacon status, location, and operating information from the governing country’s Coast Guard or Maritime Safety Administration.
When you are in manual tuning mode, pressing the EDIT key will bring up the cursor on the Frequency. You can only complete the manual tuning operation by pressing the EDIT key when the Frequency is highlighted.
Program the frequency you desire and press the EDIT key. The CDU will automatically update the Station ID. Once the beacon station transmits its location, the CDU will calculate the distance between the reference station and the receiver.
You can usually find the current beacon status, location and operating information from the governing country’s Coast Guard or Maritime Safety Administration or in the Internet.
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Once you have entered the data for several beacon stations, you can cycle between these stations by pressing the Next Station or Previous Station softkeys. These softkeys are only displayed if you have entered a name for the reference station.
The window on the right side of the display indicates which satellite ID’s are receiving corrections. When the PRN number is shown in inverse video, this indicates that the receiver is using the correction in the navigation solution. The Corr value is the actual satellite range measurement correction, given in meters. This value is typically between
-20 and +20. The Age value indicates how long it has been since the satellite range correction was generated, given in secionds.
GPS7 - DGPS Messages
This screen will display the messages received from the beacon station being used. These messages may contain information regarding operational problems and status or any scheduled equipment maintenance of beacon stations operating within the general area.
The GPS screen is not active until the antenna is detected.
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Conguration
The CFG screen includes setup and control of all of the MX51x’s primary functions. There are more than 20 separate configuration items in this screen. The display is divided into two windows. The left hand window identifies the primary configuration items. The right hand window displays the current settings. Use the cursor key to select a configuration item of interest, then press the EDIT key to edit the actual settings. There are some settings which can not be changed; however, these are displayed so that you have a better understanding of exactly how the receiver is configured. The Item list is arranged alphabetically based on the language chosen. This section of the manual is arranged alphabetically for English. You may choose to skip to only the items that interest you at first, then read this complete section at a later time.
The conguration list is too long to show in one page of the display. To view all of the conguration menu, scroll through to the bottom of each list with the cursor key.
Alarms
This screen allows you to quickly see which alarms are active or not. The list of available alarms is interactive with the remaining screens described in this section. Therefore, changing the state of the alarm in a screen such as Anchor from Off to On will also cause the anchor alarm in this screen to go from Off to On. Likewise, if you turn the anchor alarm from On to Off in this screen the Anchor screen will also match this one.
Anchor - Anchor Watch Alarm
This screen allows you to setup an anchor watch alarm and maximum drift radius after you drop the anchor. The MX51x will remember the drop coordinates and provide an alarm if the antenna drifts beyond the maximum distance you entered. If you are on a large commercial ship, don’t forget that the anchor may be several hundred feet from the MX51x antenna. You will need to consider this when setting in the distance.
COG SOG - Course & Speed Filter Settings & Setup
This screen controls the Speed Over Ground (SOG) unit of measure (meters per second, kilometers per hour, miles per hour, or knots). You can also set a filter time to average your speed and course over ground measurements. This helps to smooth these measurements on the display and NMEA output, a particularly useful tool for slow moving vessels. The default filter setting is 2.0 seconds.
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Compass - External Compass Input & Magnetic Variation Table
The MX51x will accept compass input using the NMEA 0183 data record of xxHDT, xxHDG, xxHDM, xxHCC, xxHCD, xxVHW, or any of the above. The “xx” refers to the Talker Identifier as specified in the NMEA 0183 standard. It will accept these data records vitually from any talker ID, and from any version (1.5 or higher) of the NMEA 0183 standard.
To implement this feature, change Compass Connected to Yes. Identify the appropriate input port that the compass connects to the CDU by using the
Change softkey. Select whether or not the MX51x should give an alarm if data is not received on the input
port. Select the compass type, either Magnetic, Gyro, or MX575. Only the NMEA 0183 records
identified above are accepted for the gyro input.
Magnetic:
Select the magnetic deviation method: either In Compass - the deviation is corrected before being sent to the MX51x; or In Navigator - the deviation is corrected by editing a deviation table (Edit Table softkey) in the MX51x.
Gyro:
Set the constant Gyro Heading Offset (or bias) if any.
Specify the input NMEA 0183 record for the Input Sentence. HDT, HDG, HDM, HCC, HCD, VHW, or Any.
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MX575:
There are two ways the MX575A DGPS compass can be connected to the MX51x, namely:
PORT3 as source of Positioning, Heading and ROT.
• PORT1 (or 2) as source of Heading and ROT only
•
If the MX575 is used as a positioning and heading device on NMEA Port3, set Data input port no to 3. This will automatically configure the MX575 to work at 19,200 Baud rate and the HDG output will be set to 10 Hz on power up.
If the MX575 is used as a heading & ROT device only, set Data input port no to the port number used (1 or 2) other than port 3. (See MX575 Satellite Compass Installation & Operation Manual for details).
Set the constant MX575 Heading Offset (or bias) if any.
Datum - Current Position Calculation
This screen controls which datum the MX51x uses to display the position Lat/Lon. There are over 100 datums to choose from. Appendix A provides a complete list of available datums. You can enter an offset to WGS-84 if your specific datum is not provided for in the MX51x. Use the Previous or Next softkeys or the cursor key to scroll through the list until you find the datum you need. Highlight Escape then press ENT to go back to the original datum displayed when you first pressed the EDIT key.
Depth - NMEA Input Control
This screen allows you to configure the depth unit (meters, feet, or fathoms) for the NAV 4 and TIDE 1 screens .
Depth information is accepted by the MX51x from the NMEA 0183 data sentence DBK, DBS, DBT, or DPT on any input NMEA port. Refer to the Installation section of this manual for hardware interface instructions.
Press the EDIT key and move the cursor to the Echo Sounder Connected line. Press the ENT key to Change softkey to activate the input data options described below:
Depth Unit - select between meters, feet, or fathoms. This data field sets the depth unit
displayed in NAV 4 and TIDE 1, regardless of whether a sensor is connected or not.
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Echo Sounder Connected - causes the MX51x to look for one of the appropriate NMEA
0183 data sentences when set to Yes.
Data Input Port No. - Select the appropriate NMEA 0183 port that the sensor is
connected to (Port 1 or 2). Ports 3 and 4 are reserved for the Smart antenna controls.
Offset - Input the appropriate offset for the sensor, based on the measurement you are
most interested in. If your boat draws about the same amount of water each time you use it, you may want to put in the difference between the sensor and the waterline height. If your boat’s draught changes from one trip to another, as would be the case when the MX51x is used on a freight ship, you may want to put in the difference between the sensor and the lowest point of the ship’s hull.
Shallow Alarm Active - allows you to receive an alarm if the sensor receives depth data
lower than the limit you set in Alarm Limit (below). The default setting is No.
Alarm Limit - allows you to specify at what depth you want an alarm to activate. This
alarm limit is enabled by the Shallow Alarm Active selection of Yes.
Alarm If No Data - Allows you to receive an audible and visual alarm if NMEA 0183 data
is not being received on the data port at regular intervals (typically every few seconds). The available choices are Yes (default) and No.
Input Sentence - Specifies the NMEA 0183 data sentence to read the depth data from.
The available choices are Any (default), DPT, DBS, DBT, or DBK sentence. It is better to specify the appropriate sentence because more than one method of reporting depth may be available on the port.
The window in the lower portion of the screen allows you to see the depth data that is received on the data port (Input:) and the data that is actually displayed in NAV 4 (Used Value:).
DGPS - DGPS Conguration
This CFG menu allows you to control the built in beacon receiver in the smart antenna unit.
DGPS Menu
DGPS Mode:
Auto - sets the smart antenna to automatically switch between DGPS or GPS modes. This
is the default setting. If DGPS corrections are being received and their age is less than the Max Age limit, the MX51x will operate in DGPS mode (assuming you are receiving corrections for enough satellites to operate in DGPS mode). Otherwise, the receiver operates in GPS positioning mode.
The traffic light will be green when it is in DGPS mode. When it drops to GPS mode, a DGPS symbol will be displayed (indicating Non
Differential GPS mode), and the yellow and green traffic light will be on. Use this mode when maximum navigation coverage is more important than
accuracy. Reverting to GPS mode will degrade the overall navigation results, but it is better than no navigation results at all in most circumstances.
DGPS Only - sets the smart antenna to only provide DGPS position fixes. If corrections
are being received and their age is less than the Max Age limit, the MX51x will operate in DGPS mode (assuming there are enough corrections to operate in DGPS mode). Otherwise, the antenna will not provide any position fix at all.
Use this mode when accuracy is more important than maximum navigation coverage. It is recommended to set the Max Age to 30 seconds in this mode.
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Off - sets the smart antenna to operate in GPS mode only.
Max Age -sets the maximum age limit that the last received RTCM correction will be
applied to the satellite range measurement in the receiver. The default setting is 600 seconds. The MX51x will accept values from 10 to 999 seconds. Due to the
removal of the S/A dithering from the satellite signal, you may now use values of 600 seconds in the maximum age and still be very accurate.
Message 16 Alarm - sets the alarm to On or Off if a reference station text message is
received. The default setting is Yes. Received (Type 16) beacon messages can be displayed on the GPS7 screen, regardless of the alarm setting.
Alarm For No Corrections - sets the alarm to on or off if DGPS corrections are not
received within the Max Age. The default setting is Ye s. If the alarm is set to Ye s,
you will notice that the MX51x drops out of DGPS mode and into the mode selected in DGPS Mode described earlier in this section at the same time the alarm sounds.
Alarm on health change - Sets the alarm to On or Off if a satellite becomes unhealthy or
unusable.
WAAS/EGNOS enabled - sets the source of differential correction to come from satellite
based augmentation system such as US-WAAS or European-EGNOS system. Although this systems are available, they are still non-IMO compliant. Use of these differential correction sources should be done with great caution.
External DGPS Enabled - gives the user the capability to accept RTCM SC-104 corrections
from an external beacon unit (receing the Coast Guard or a Private Beacon Reference Station). The MX51x allows you to control the baud rate of SC-104 Data input port. The following baud rates can be used: 2400, 4800, 9600 or 19200 Bauds.
WAAS/EGNOS and External RTCM are available only for the MX521A, MX525A smart antennas or MX575A GPS Compass. The MX421-10 GPS smart antenna can use external RTCM correction only.
DR - Dead Reckoning
The DR (Dead Reckoning), is an added navigation feature of the MX51x in the event that there is no GPS positioning available. This feature requires external speed log and heading sensor inputs to work properly. When the DR setting is set to ‘Yes’ and appropriate compass/ heading and speed log sensors are connected and activated, the MX51x will automatically switch to DR calculation when the GPS positioning becomes unavailable. A DR icon on the top right corner of the display indicates that the position displayed is derived from DR calculation.
To set the DR to ‘Yes’ , scroll down to DR menu then press the EDIT key. Press the ENT key to activate the ‘Change’ softkey. Press the EDIT key again to exit the edit mode.
Dual Control - Dual Station Control
This screen sets the functional control between two or more MX51x CDU’s in a LAN network. The default setting is No. When this selection is changed to Ye s, one MX51x is set to Master, the other MX51x is set to Slave. Up to five MX51x units can be networked together using the LAN port. The MX51x connected to the antenna is normally the Master unit and the other member/s can be either slaves or repeaters. The Slave unit/s will share a common waypoint and route database with the master. It can also make changes in some of the configuration settings. A slave unit can be made into a Repeater. Repeaters only act as a display unit. They cannot be used to change configuration settings. Once an MX51x is set as a repeater it will require a special password (which is set by the Master unit in CFG1/Se curit y) to change it back to a slave.
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Whether a unit is a slave or repeater, it will still share a common waypoint and route database as the master. Refer to Appendix C for more detailed information about the dual-control and multiple unit control setup and operation.
CFG1/LAN menu must be setup before enabling the Dual-Control feature. A dual control system consists of one Master and one Slave. A Multiple Unit Control (MUC) system consists of one Master, at least one Slave (maximum of two), and up to three (if any) Repeaters. A multiple unit control system must contain a minimum of three MX51x and a maximum of ve MX51x units altogether.
In a Multiple Unit Control conguration, this option must be enabled (by changing Dual Control to Yes) for all Slave and Repeater units before enabling it in the Master unit.
MX51x Dual Control Menu
GPS - Elevation Mask Control
This screen controls the elevation mask angle, or the angle above the horizon, at which the MX51x will attempt to track a satellite. Satellites with an elevation below this angle will be tracked but will not be included in the position solution. You can set the elevation limit to any value up to 90°. For most marine applications, the default limit of 5° is appropriate.
The Antenna Offset allows you to virtually offset your antenna location. That is, if you are forced to place the antenna in a location other than where you want your position fix calculated (due to superstructure or other high power antennas), you can place the antenna in a practical location. Then enter the appropriate Antenna Offset, and the MX51x will calculate your position in the place where you would have preferred to place the antenna.
The RAIM menu is available only in MX51x models where the RAIM feature is enabled. For more detailed information about RAIM, please refer to Page 67 of this manual. Standard MX51x CDU will only show the Elevation mask and Antenna offset menu items.
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Initial Pos - Initial Position Entry
This screen is provided to help the GPS receiver in the smart antenna to get a faster first position fix. While the smart antenna is capable of computing its position without any user input, this feature can cause a position fix to occur several minutes earlier. Another time this feature is useful is when the MX51x has been moved over 300 miles from the last location it was used while in the off condition. Again, the MX51x will calculate a position fix without any user input in this circumstance. However, moving the MX51x to a new location and not inputting a new initial position will cause the receiver to select a satellite constellation consistent with the last known receiver coordinates. In this event the MX51x may “get lucky” and find common satellites between the old position and the new location, or it may take up to 20 minutes to go through all of the constellation possibilities. Note that the MX51x will stay on the original constellation for 15 minutes before attempting other constellation possibilities. We assume the MX51x will be turned on and off in the same general area each time, and we provide the unit every opportunity to try and track satellites at the last known coordinates.
LAN - Local Area Network
This feature allows the MX51x to communicate with another MX51x via LAN interface (RJ45). This data link is used by the MX51x for dual control, integrity monitoring, and multiple control applications. Below are IP addresses used by the Host and Client units within its local network.
Typ e IP Address
Host 192.168.100.250 Clients (See below)
Number 1 192.168.100.251 Number 2 192.168.100.252 Number 3 192.168.100.253 Number 4 192.168.100.254
MX 510 IP Address Table
To activate LAN, press the EDIT key and press the ENT key to activate the Change softkey to change LAN Enabled to Yes. Use the Change softkey to modify the options described below:
Type - select between Host or Client. In a dual or multiple unit control system, the
Master will be the Host and the Slave(s) will be the Client(s).
Number - this option is only available when Type is Client. The available values are 1,
2, 3, or 4 (which determines the IP address of the CDU). Each Client has to be assigned with a unique number (1, 2, 3, or 4). Any two or more Clients with the same number will create an IP address conflict, and therefore, will activate an IP Conflict Alarm. Please refer to the previous IP address table for the designated IP numbers.
When the connection is successful, the Status will display ESTABLISHED.
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LAN Output (NMEA 0183 OVER IP)
This screen is very similar to the NMEA Out screens. It sets the specific NMEA 0183 output record parameters. The default setting is No. When this selection is changed to Yes, you can turn on individual data records, and transmit them using the Local Area Network (LAN) connection.
This feature can be used to integrate the MX 510 to an Integrated Bridge System by connecting the CDU to a PC-based IBS system using LAN (RJ45).
Language - Language Conguration
The MX51x supports 9 languages: English, Dutch, French, Finnish, German, Italian, Spanish, Swedish and Danish.
Press the EDIT key. Use the cursor key to scroll down the list until you find the desired language. Press the EDIT key again. The CFG menu list will sort the menu selections in alphabetical order based on the language selected.
Lighting - Display/Keyboard Light, Contrast Control & Set Display Default Setting
There are two basic display setups. The light function key allows you to instantly switch between two predefined screens (Daylight & Nightlight).
Contrast- Controls the viewing angle of the display Backlight- Controls the display backlight intensity Traffic light - Controls the brilliance of the three traffic LEDs
Display background - selects black or white display background Set back light off timer - turns the backlight to minimum brillinace when no keypad
activity is detected within 30 seconds (time is configurable)
Hitachi Display - controls the LCD parameters to match the LCD made by Hitachi Set All to Default - When set to Yes, all display settings will be set to factory settings.
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Log - Speed Log Input (Pulse or NMEA 0183)
This screen controls the input port (NMEA-0183 or Pulse) and format of the speed log input to the MX51x. In the default condition, the speed log is not connected. NMEA 0183 speed is accepted from the xxVHW data sentence originating in any of the version
1.5, 2.0, 2.1, or 2.3 format where xx is a valid talker ID as specified in the NMEA 0183 standard. The CDU will also accept speed log pulse input, with pulses of up to 1.5 kHz. Refer to the Installation section of this manual for the wiring interface instructions.
NMEA 0183 (VHW) Input Screen Pulse Input Screen NMEA Input: Data Input Port No. - Select the appropriate NMEA input port as determined by the
hardware interface. Refer to the Appendix F of this manual for wiring connections.
Alarm If No Data - Causes an alarm to activate if data is not received on the port you
defined within 10 seconds when Ye s is selected (the default condition). To disable the alarm, select No with the Change softkey.
Correction Factor - Allows you to make minor adjustments to observed or measured
errors in your speed through water calculation. The input value will be multiplied
by this value before it is used in the MX51x. The default value is 1.00. Digital Pulse Input: Pulses Pr. Nm - This is the calibrated pulses per speed unit value that you must get from
the speed log manufacturer. Alarm If No Data - Causes an alarm to activate if data is not received on the port you
defined when Yes is selected (the default condition). To disable the alarm, select
No with the Change softkey. Correction Factor - Allows you to make minor adjustments to observed or measured
errors in your speed through water calculation. The input value will be multiplied
by this value before it is used in the MX51x. The default value is 1.00. Both input types have a window in the lower portion of the display which indicates the input
value in real time. If you input a calibrated pulse rate, you can check for the appropriate speed right here.
You will be able to view the speed log information in the NAV4 screen when it is implemented in future software.
Log Pulses - GPS SOG Log Pulse Output
This screen controls the output port (Pulse) of the speed over ground log output from the MX51x CDU at a user-defined pulse rate per nautical mile. This output is normally used to feed GPS SOG to an ARPA radar. The default state is not active, and set to 200 pulses per nautical mile. The Log Pulses output connection is done using the 8-pin AUX connector.
Refer to the Installation section of this manual for the hardware interfacing.
Activate the output by selecting Yes to Emulation Enable and set the pulse rate based on the device that you are connecting to.
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LORAN-C Integration
This feature will be available only when the optional Loran-C license is purchased and activated. The MX 51x has two selections for Loran-C integration (Raytheon and Locus).
Raytheon:
To implement this feature, change LORAN-C connected to Yes.
Identify the appropriate input port (1 or 2) that the LORAN-C device connects to by using the Change softkey.
Select the appropriate Version Number with the range from 0 to 9.
The Antenna offset option of the LORAN-C feature is tied to the Antenna offset from the GPS feature. Note that any changes you make to the Antenna offset in LORAN-C will also modify the Antenna offset in the CFG1/GPS screen. The Antenna offset allows you to virtually offset your antenna. That is, if you are forced to place the antenna in a location other than where you want your position fix calculated (due to superstructure or other high power antennas), you can place the antenna in a practical location. Enter the appropriate Antenna offset, and the receiver will calculate your position in the place where you would have preferred to place the antenna.
After the LORAN-C (Raytheon) feature is enabled, you will have 3 new screens (POS 4, POS 5, POS 6), which display the following information:
POS 4 - GPS/LORAN- C Combined Position •
POS 5 - LORAN- C Calibrated Position
•
POS 6 - LORAN- C Stand Alone Position
•
The POS 4 screen displays the GPS/LORAN-C combined position and navigation modes received from the $PMVX1 message (which is based on (D)GPS if GPS is available, and based on (D)GPS calibrated LORAN-C position if GPS is not available) from the LORAN-C receiver. The $PMVX1 message is formatted just like the NMEA GGA message, except that its GPS quality indicator ranges from 0-5. The GPS quality indicator is displayed as a navigation mode on the POS 4 screen.
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Keypad & Display Description | 81
The POS 5 screen displays the (D)GPS calibrated LORAN-C position received from the GLL message from the LORAN-C receiver.
The POS 6 screen displays the stand-alone (uncorrected) LORAN-C position received from the RMA message from the LORAN-C receiver.
When Loran-C (Raytheon) option is enabled, the MX51x gives the option to accept EUROFIX DGPS corrections instead of the External DGPS corrections under the CFG1/ DGPS Configuration screen.
Locus:
To implement this feature, change LORAN-C connected to Yes. Identify the appropriate input port (1 or 2) where the LORAN-C device connects to by
using the Change softkey. Select the chain selection mode, either Auto or Manual.
Auto:
When the chain selection mode is Auto, you can view the list of current chains by using the left or right arrow key to highlight the List Chains softkey and press the ENT key to select. You can also choose the desired region by using the left or right arrow key to highlight the Change softkey and press the ENT key to select.
Manual:
Select this option to manually add or remove the list of chains. To add a chain, use the left or right arrow key to highlight the Add Chain softkey, and press the ENT key to select. Enter the 4 digits chain GRI then select the Done softkey to add the chain. To remove a chain, use the left or right arrow key to highlight the Remove Chain softkey, and press ENT to select. Enter the 4 digit chain GRI and select the Done oftkey to remove the chain.
You can view the list of current chains by using the left or right arrow key to highlight the List Chains softkey, then press ENT to select.
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After the LORAN-C (Locus) feature is enabled, you will have 2 new screens (POS 4, POS
5), which display your LORAN-C information.
The POS 4 screen displays the geographical coordinates of the Loran-C position in the form – degrees, minutes, and hundredths of a minute.
The POS 5 screen displays the Station GRI, Time Difference (TD), Warning status (CYCLE, BLINK), and Signal-to-Noise (SNR) data for different slave stations of a particular Loran-C chain being used.
This screen also allows you to scroll through data of different chains if multiple chains are being used.
Press
1 EDIT key to bring up the PREVIOUS CHAIN and NEXT CHAIN softkeys.
Use the left or right arrow key to highlight the PREVIOUS CHAIN or NEXT CHAIN
2
softkey then press the ENT key to select and view data from different chains (if
more than one chains are being used).
Press the EDIT key once more to exit the softkey menu.
3
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Keypad & Display Description | 83
Memory
This screen allows the user to have the option to save and restore waypoints, routes, and system configuration using the MX51x internal flash memory.
Navigation - Navigation Method & Waypoint Pass Criterion Control
This screen sets the navigation mode to Rhumb Line or Great Circle, Cross-track Error limits and alarms, Waypoint Pass Criterion, and Waypoint Approach alarms. These settings have a direct effect on your route calculation and how data is displayed in the NAV and PLOT screens.
Navigation:
Sets navigation to Rhumb Line (default) or Great Circle mode.
When the navigation mode is set to Great Circle, the PLOT screens will not show your course or cross-track error lines.
Range Unit:
Sets the unit of measure for all range calculations. You can choose between
Nautical Mile (default), Nautical Mile & Meters, Nautical Mile & Feet, Statute Mile,
Statute Mile & Meters, Statute Mile & Feet, Kilometers, and Kilometers & Meters. Direction:
Sets all displays which indicate direction to Tr ue or Compass. If you want the MX51x to agree with your magnetic compass, select Compass. The MX51x will automatically add or subtract the appropriate magnetic variation and deviation. Enter the compass deviation table into the MX51x in this screen. You can differentiate between Tr ue and Compass settings by observing the degree symbol on any bearing or heading display. True is indicated by a degree symbol (°),
Compass is indicated by a degree symbol with a small c under the symbol ( c ).
XTE Limit:
Sets the distance left or right from the course line you consider to be the
maximum allowable off-track error (known as cross-track error, “XTE”). The PLOT
screens will display the scaled cross-track error distance. The NAV screens will
indicate the cross-track error in numerical format and present the cross-track
error graphically scaled left or right of the course line.
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XTE Alarm:
Causes an alarm to sound if your position exceeds the maximum XTE Limit defined
above when Yes is selected. To disable the alarm, select No (default) with the
Change softkey. WPT Pass Criterion:
Sets the waypoint passed determination method. There are five methods available:
Complex:
This is the default setting. Passing the waypoint is determined by reaching an
imaginary perpendicular line. Or you can pass the waypoint by crossing the
bisector line of an acute angle (providing you are within 0.2 NM of the waypoint) or
an obtuse angle between your present course line and the next leg of your route.
Manual:
Passing the waypoint can only be accomplished by manually skipping a waypoint.
Refer to the Skipping and Unpassing Waypoints in the Route section of this manual.
This is a great way to perform station keeping maneuvering. Refer to the Plot
Screen Use Examples in the Plot section for further details on this application.
Distance:
Passing the waypoint is determined by reaching an imaginary circle around the
waypoint, the radius of which you can define in WPT Pass Distance. The default
value is 0.10 Nm.
If you set this distance to 0.00, you will never pass the waypoint. This is a great
way to perform station keeping maneuvering. Refer to the Plot Screen Use
Examples in the Plot section for further details on this application.
Bisector Line:
Passing the waypoint is determined by reaching the bisector line of an acute or
obtuse angle between your present course line and the next leg of your route.
Perpendicular Line:
Passing the waypoint is determined by reaching an imaginary perpendicular line
from your present course line.
Approach Alarm:
Causes an alarm to sound if your position is within the radius defined in Approach
Distance (below) when Yes is selected. To disable the alarm, select No (the default
condition) with the Change softkey.
Approach Distance:
Sets the waypoint approach alarm distance (above) to sound if your position is
within the radius defined. The default setting is 0.30 Nm. This is a convenient tool
for large boats and ships that need to perform Transfer and Advance maneuvers
prior to reaching the waypoint.
Autopilot Alarm:
Causes an alarm when your position is outside the cross-track error limit defined
in XTE Limit (above) or when you change course to a new leg in your route
(manually or automatically passing a waypoint) when Yes is selected. It also causes
the NMEA data records of APA, APB, and XTE to change their reported status
of Valid to Invalid when you reach the waypoint of the current leg. This tells the
autopilot not to use the data from the MX51x. When the alarm is canceled, which
requires your highlighting of the Cancel Alarm softkey then press ENT (displayed
during the alarm condition), these data fields will revert to valid data and the
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Keypad & Display Description | 85
autopilot will accept the MX51x data again. This is provided as a safety feature so
that the boat does not turn toward a new direction without your knowing of the
impending change. To disable the alarm, select No (the default condition) with the
Change softkey.
NMEA Out 1 - NMEA 0183 Output Data Control
These screens set the specific NMEA 0183 output record parameters as well as the port control. The default setting is No. When this selection is changed to Yes, you can turn on individual data records. Refer to the installation manual of the device you interfaced with the MX51x to determine which output records are required. Refer to the Installation section of this manual for MX51x hardware interface information.
MX510 Model - has two user NMEA ports available, two antenna ports (NMEA3 & 4) dedicated to the MX smart antenna, and one Local Area Network (LAN) port.
MX512 Model - has 11 user NMEA ports, two antenna ports (NMEA 3&4), one LAN port and one VGA port.
Pre plan your interface requirements to ensure all of your interfacing needs are met. All NMEA Ports are RS-422 electrically. We recommend using these ports to interface to a computer or other “single ended” interface.
The default condition of each port is Off. When you want to output data on a NMEA port, scroll down the Item menu to the appropriate NMEA Out port number and change Port Active to Yes. In doing so, the MX51x will display all available NMEA 0183 output sentences.
MX510 NMEA Out Menu MX512 NMEA Out Menu
Scroll down the list using the cursor key to the desired NMEA 0183 sentence. Highlight the Change softkey then press ENT to select On.
Highlight the Details softkey then press ENT to view the characteristics for the NMEA record you select. If you notice that the top of some text is cut off by the Capacity Needed window, this indicates that there are more selections available than can fit in the window. Use the cursor key to scroll down the list. Each record is controlled separately. Generally speaking, the following controls are available to you for most or all of the records:
Checksum On or Off - NMEA 0183 version 2.1 and above requires that the checksum
is present. Versions 1.5 and 2.0 do not require the checksum. The MX51x
provides you the option of turning the checksum on or off to provide flexibility in
interfacing. Output Rate - maximum once per second, unless the Multi-Hertz option is installed. Refer
to the Total Load Is section which follows.
All position information contained in any data record is output in the local datum selected in CFG/Position; except GGA, which provides a selection in the Details screen to output in either WGS-84 or the datum selected in CFG/ Position.
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Most: NMEA Version - Some of the NMEA 0183 records are no longer supported by version
2.3. However, you may have an autopilot, plotter, or other older model equipment
that does not support the newer version of the NMEA 0183 standard. The MX51x
provides you the flexibility to interface using older versions of the NMEA standard
to support these devices.
Decimals In Lat/Lon - The software allows you to select from 2 to 5 decimal places in
records containing position or waypoint information.. The MX51x provides you the
flexibility to match the expected input on these devices. Decimals In BRG or HDG - The MX51x allows you to select from 0 to 1 decimal places in
records containing bearing information.
xxx loads the port by - The NMEA 0183 standard limits the port baud rate to 4800
bits per second. It is impossible to turn on every NMEA 0183 data record on one
port in the receiver at a once per second output rate, due to the NMEA standard
limitation. xxx loads the port by tells you how much throughput capacity is
required to send the selected data record out the port (where xxx is the NMEA
data sentence identifier). If you change the Output Rate, xxx loads the port by:
value will adjust to reflect the change after you move the cursor to the next
line. This is a very helpful tool to ensure that you don’t lose data due to lack of
throughput on the data port. Total load is - Due to the throughput limitation of the NMEA 0183 standard, you can not
turn on all of the output records available from the receiver at a once per second
output rate at one time. The “Total load is” counter will help you maximize the port
usage on the receiver. It monitors the total throughput capability of all the output
records that are currently turned on. If you go over 100% and you require all of
the data records that are currently turned on, try reducing the Output Rate for one
or more of the less critical data records. Continue this process until the Total load
is 100.0% or less. There are several special case screens which provide added support.
Rnn - Active Route Data Record:
The NMEA-0183 standard allows you to output the active route with an ID sentence
that begins either as GPR00 or GPR01. Some of the equipment you might interface
may require this sentence to outputs R00 and other equipment may require this
data record as R01. The MX51x allows you to configure the ID either way (R00 is
the default).
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Keypad & Display Description | 87
WPL - Waypoint Location Data Record:
The MX51x outputs all of the waypoints in the active route. If you want to output the
complete Waypoint Bank, simply highlight the Send All softkey then press ENT
from the NMEA WPL screen.
The WPL record, as defined by the NMEA 0183 standard, technically does not
allow the output of waypoint descriptions when interfacing to other devices such
as Chart Plotters. However, MX Marine realizes that with 2000 waypoints, you
have spent a lot of time preparing your library of waypoints with definitions and
symbols. You probably will want to record these to a PC or USB memory stick,
just in case the memory in the MX51x fails in the future. For this reason, we have
provided you the option to Include Waypoint Names in the WPL record to save
your waypoints or to meet the NMEA 0183 standard for interfacing to other marine
equipment. The definition of the differences between these two formats is given
in the WPT section of this manual and in the NMEA 0183 format section in the
Installation section of this manual.
Other Special Cases Affecting NMEA 0183 Records:
BWC, BWR, APA, APB, RMB, RMC, and Man Over Board (MOB):
During the period when the Man Over Board function is activated, NMEA 0183
records which contain bearing and range data, such as those identified above (but
not limited to these), will reflect the bearing and range back to the MOB position
until the MOB function is canceled. Refer to the MOB section of this manual.
APA, APB, XTE, and the Navigation Autopilot Alarm:
Refer to the CFG Navigation section. When the Autopilot Alarm is set to No, the
MX51x always indicates a mode ‘A’, or valid data to the autopilot or other marine
device which might be receiving this data. If the Autopilot Alarm is set to Yes, then
the MX51x changes the mode ‘A’ to ‘V’, indicating invalid data when you reach a
waypoint or exceed your cross-track error limit set in the CFG Navigation XTE
Limit field. When the alarm is canceled, which requires your highlighting of the
Cancel Alarm softkey then pressing ENT (displayed during the alarm condition),
these data fields will revert to Valid data and the autopilot will accept the MX51x
data again. This is provided as a safety feature so that the boat does not turn
toward a new direction without you knowing of the impending change.
Output Port Configuration Conflicts:
The NMEA output ports can only be assigned once. If you have already defined
a given port for one format, and you attempt to define a different format for the
same port, the MX51x will warn you of the port conflict. The first format to be
defined on a port maintains the port. The second format will be ignored.
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Operation - General Setup and Control Settings
This screen controls a few basic operating settings: Remember Display: When set to Yes (default), the MX51x remembers the Page Number
or screen you viewed the last time you used a particular function. For example,
if you normally monitor the NAV3 display and you decided to look at the PLOT1
screen, the next time you press the NAV function, the MX51x will automatically
revert to the NAV3 screen immediately.
If you select No for Remember Display, the MX51x will always display the first page of a function when you press the function key.
Edit Timeout: You can set the timeout limit between None (default), or 1 to 10 minutes.
If you enter the edit mode on any screen and have a timeout period other than
None, the MX51x will automatically exit the edit mode if no keys are touched and
the timeout period expires. Preceding Zeroes: Places zeroes (0s) before directions less than 100° when Yes is
selected. For example, 079°. Otherwise directions are shown without the leading
zeros when No is selected (default). For example, 79°. Beeper: If you attempt to perform a key function that is not allowed, you normally hear
an Error Tone. This is performed when the Beeper is set to On (default). If you
don’t want to hear the error or any other keyboard beep, set the Beeper to Off. Retain External Alarm: Allows the CDU to hold the external alarm while the alarm
condition still exist. When Retain external alarm is set to On, the external alarm
will normalize only when the cause of alarm is corrected. Engineering Display: This enables an expanded series of display screens in some
of the functions. In general, these screens are used by the technician during
troubleshooting or by MX Marine engineers during development testing. Screens
which are relevant for troubleshooting are described in Appendix B of this manual.
The default setting is No. If you should enable these screens, the MX51x will
automatically turn them off the next time power is cycled on the unit. Demonstration Mode: This enables the MX51x to function as though you are under way,
even though you are completely stationary. The default setting is No. When set
to Yes, all three Traffic Lights will be illuminated, and a D symbol is displayed in
the upper right corner of every display. Generally speaking, this feature is used
by MX Marine and your dealer for show room or trade show demonstrations.
However, you can use it as a training tool until you become familiar with the
MX51x. As a safety feature, you can not use it to output NMEA 0183 records on
the data ports to test and demonstrate other devices such as autopilots, chart
plotters, and radars. Refer to Appendix D of this manual for a full description of the
Demonstration Mode.
Organizer - Automated Message Reminders
This screen enables you to program the MX51x with up to 25 different message reminders (up to 30 characters in length). You can program it to alarm for shift changes, log entry intervals, medication intervals, weather fax updates, etc.
When the Organizer alarm is activated, the voltage on the Alarm Output Port is also activated. If you have other devices connected to this port, you might need to consider what other systems will be affected when the alarm sounds. MX Marine offers an External Alarm control option license that will allow you to control the internal and external alarm settings individually. Check with your dealer or MX Marine for details on External Alarm license option.
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Keypad & Display Description | 89
The setup is straight forward. Use the Change softkey to increment forward through the available choices. Use the Go Back softkey to increment backward through the available choices. You can also use the left and right cursor keys to accomplish these same operations. Enter text the same as you do for the waypoints and routes. Use the numeric key pad to enter the appropriate time. Don’t forget to set Message Active to Yes when you are finished editing, to enable the alarm.
Position - Positioning Reference, Mode, & Alarm Control
This configuration screen controls several important parameters which determine your present position.
Reference System:
This setting controls the coordinate system used to display your position. The
available choices are Lat/Lon (default) or UTM (Universal Transverse Mercator).
The MX51x will automatically convert any waypoint in the Route Bank or Waypoint
Bank when a different coordinate system is entered. Note that when you select a
coordinate system other than Lat/Lon, data in the NMEA 0183 records will remain
in the Lat/Lon format, as defined in the NMEA 0183 standard.
When you select UTM, you can set the Zone yourself (Man), or let the MX51x
calculate the zone for you (Auto, default).
Alarm For High HDOP:
This allows the MX51x to create an alarm for HDOP values which rise above a
number that you determine. This indicates that position accuracy is becoming
bad, due to poor satellite geometry relative to your position and/or the number of
satellites currently under track. You may want to set the alarm to Yes if position
accuracy is critical to you. Otherwise this alarm is normally set to No.
HDOP Alarm Limit:
Sets the HDOP value which will cause the alarm to sound. The default value is 4.
The valid range is from 1.0 to 9.9. The higher your HDOP value, the more error you
will have in your position fix. Refer to the GPS1 Current Satellite Status section of
this manual for more information about the HDOP value.
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Printout (n) - Printer Output Control
This menu item controls the printer output sometimes required for commercial shipping. The interface is accomplished on NMEA Out 2 port for the MX510 or NMEA Out 11 port on MX512 models. The printer output is simple ASCII text designed to operate on any serial line printer, including narrow column printers.
The MX51x has two print formats, namely: Full or Brief.
MX510 Printout2 Menu MX512 Printout11 Menu
A sample of the Full printer output format is given below:
MX510 Navigator
====================================
20:42:41 UTC 12 Apr 2002 POS Mode : DGPS 3D Datum:W84 Position : N 33 48.5056 W 118 21.0073 Altitude : 5.6 m COG: 346 T SOG: 0.1 Kn ROUTE: From WPT 0 To WPT 1 NAV Mode : RL XTE: .108L Nm BRG: 345 T Dist: 2.51 Nm SATS Used: 6 HDOP 1.4 VDOP 1.6 DGPS Age : 9s Station ID: 262 SW Vrs. 1.5 MX421 V4.84
------------------------------------------------------------------------
Route and DGPS information is printed if these functions are active.
Here is a sample of the Brief format without an active route: MX510 Navigator ==================================== 21:24:00 UTC 12 Apr 2002 POS Mode : DGPS 3D Datum:W84 POS: N 33 48.5124 W 118 21.0213 COG: 152T SOG: 0.1 Kn
------------------------------------
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Keypad & Display Description | 91
Here is a sample of the Brief format with an active route or MOB condition:
MX510 Navigator
====================================
21:24:00 UTC 11 Aug 1997
POS Mode : DGPS 3D Datum:W84
POS: N 33 48.5124 W 118 21.0213
COG: 152T SOG: 0.1 Kn
BRG: 239T Dist: 27.4 Nm XTE:0.14L Nm
RTE: RL From WPT 1234 To WPT 1357
-------------------------------------------------------------------------
Sending: Causes the printer output to be turned On or Off (default). Print Interval (Sec): Allows you to control how often the print out will be sent to the
printer port. The default value is 60 seconds, and the valid range is from 1 to 9999
seconds.
Format: Allows you to choose either the Full or Brief formats described above. Bit Rate: This allows you to control the port interface baud rate to match the printer or
computer you are interfacing with. The available baud rates are: 600, 1200, 2400,
4800 (default), 9600 or 19,200. Data Bits: This allows you to match the printer’s requirement of 7 or 8 (default) bit serial
data.
Stop Bits: This allows you to match the printer’s requirement of 1 (default) or 2 stop bits. Parity Check: This allows you to match the printer’s requirement of None (default), Even
or Odd parity. Handshake: This allows you to match the printer’s requirement of No (default), XON/
XOFF or HW (Hardware; CTS, RTS ).
ROT (Rate of Turn)
The ROT configuration menu is available in the MX51x model. The “ROT connected” mode can be toggled to YES or NO, by pressing the EDIT key and then highlighting the ‘Change’ softkey and press ENT.
Data input port no: 2 (valid port selections are 1,2, or 3*) Alarm if no data: .. No (‘Yes’ value sets the alarm to sound if no ROT input data is
detected in 5 seconds)
*Use MX575 ROT: No
(‘Yes’ value would allow the MX51x to use ROT data from Port 3
when the MX575 is used as a positiong and heading device. ‘No’ value would allow the MX51x to use ROT data from any available port other than Port 3 when the MX575 is used as a heading device only (See MX575 Satellite Compass Installation and Operation Manual for details).
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Security
The Security screen allows you to lock out the EDIT key in order to keep crew members or visitors from changing settings that you have made. Once this feature is enabled, a press of the EDIT key will require the correct password to gain access. To disable the security functions, you will be prompted to enter a 5 digit password. You will then be prompted to reenter the password. The security function is then disabled until you enter a new password through the CFG1 Security screen again. Be sure to keep your password in a safe place. If you lose your password, you will need to call the factory to reset the security feature.
Serial I/O
This menu provides a means to verify the status and baud rate settings of all the NMEA ports. Note that the NMEA ports 3 & 4 are reserved for the Smart antenna GPS and Beacon receiver interface. You have no control in these two ports. You can not change the baud settings in its original values.
MX51x Serial I/O Menu
Time - Mode and Format Control
This menu item sets the method in which time is displayed on the CDU.
Time System: Sets the time to UTC (default) or Local. When Local is selected, several
parameters associated with local time are displayed. Time Format: Sets the time to either a 24 Hour (default) or 12 Hour clock.
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Keypad & Display Description | 93
Time Offset: Sets the local offset to UTC time. 0:00 is the default. Summer Time: Sets the local clock ahead one hour in the summer for daylight savings
time when set to Ye s, or to the Local Offset time when set to No. The adjusted time value is displayed in the lower window so you can verify the current
time without having to leave the screen.
USB - USB Mass Storage Conguration
This option controls the saving and restoring of your waypoints, routes, and system configuration via an external USB device. In the event where you do a software upgrade for your MX51x CDU for example, all your waypoints, routes, and system configuration will be lost. This option allows you to save them to a USB device (i.e. USB flash drive) beforehand, and restore them from your USB device after the software upgrade is completed. This way, you do not have to manually re-enter all your waypoints, routes, and system configuration settings.
To implement this feature, plug your USB device into the USB port of the MX51x CDU first, and change USB Connected to Yes. Allow a few moments for the CDU to read and detect your USB device. Ensure that status displays Connected before continuing.
Select the data type, either Waypoints, Routes, Config, or All by using the Change softkey.
Waypoint s:
This sets the CDU to save (Save to USB softkey) or restore (Restore softkey) your waypoints using your USB device.
Route s:
Select routes will set the CDU to save (Save to USB softkey) or restore (Restore softkey) your routes using your USB device.
Conf ig:
Allows the CDU to save (Save to USB softkey) or restore (Restore softkey) your system configuration settings using your USB device.
All:
Allows the CDU to save (Save to USB softkey) or restore (Restore softkey) your waypoints, routes, and system configurations all at once.
If you are nished using this feature and wanted to remove your USB device from the CDU, ensure that USB Connected is changed to No and press the EDIT key once more to exit EDIT mode before removing the device.
Please format your USB device using FAT32 le system before use. Refer to the Installation section for fomatting procedure and hardware compatibility list.
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VGA
This menu is available in the MX512 model only. It controls the VGA output display base (background) and font colors.
To control the VGA output, do the following:
Press the EDIT key to bring up the cursor.1
Press the ENT key to turn the VGA feature to ON.2
Press the down arrow key to scroll down to Base Color.3
Press the ENT key repeatedly until the color desired is shown.4
Scroll down to Font Color.5
Press the ENT key repeatedly until the deired color for font is shown.6
Press the EDIT key to exit.7
Wind
The MX51x will display wind information in the NAV4 screen when connected to a NMEA 0183 sensor which can provide the MWV or VWR sentence.
Data Input Port: 1 (default) or 2. Wind Speed Unit: miles per hour, meters per second, knots, kilometers per hour. Alarm If No Data: Allows you to receive an audible and visual alarm if NMEA 0183 data
is not being received on the data port at regular intervals (typically every few
seconds). The available choices are Yes (default) or No.
AWA Offset: Allows you to input a constant angle correction value. AWS Correction Factor: Allows you to input a wind speed correction factor. Input Sentence: Specifies the NMEA 0183 data sentence to read the depth data from.
The available choices are Any (default), MWV, or VWR sentence. It is better to
specify the appropriate sentence, because more than one method of reporting
wind may be available on the port.
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Keypad & Display Description | 95
Wpt & Rte Input - Uploading Waypoints into the MX51x
This screen enables the input data port to receive waypoints and routes from a chart plotter, PC (VMS), or other device to the MX51x. You can receive this data through any of the user NMEA 0183 input data ports. Load the WPL sentences first, then the RTE sentences. Change Transducer Connected from No (default) to Ye s and select the appropriate port. Refer to the Waypoints - Uploading Waypoints from Other Devices section of this manual for more details on the software interface. Refer to the Installation section of this manual for hardware interface.
Turn the WPT & RTE In option to No after the waypoint and route banks have been downloaded to prevent an inadvertent change of the MX51x memory bank.
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5 Installation
List of Components
Item Description Qty Part Number Remarks
1.0 MX510 Navigation System Includes the following:
1.0.1 MX510, 2 Port CDU 1 510-000-0000 Standard
1.0.2 Mounting U-Bracket 1 510-100-2002 Standard
1.0.3 Mounting Knobs 1 500-100-2006 Standard
1.0.4 12-Pin Power/Data Cable 1 500-100-2001 Standard
1.0.5 Operator & Installation Manual 1 510-100-2003 Standard
1.0.6 Quick Reference Guide 1 510-100-2005 Standard
1.1 MX Smart Antenna Unit 1
See Table 1.1 (Choose one)
Option
1.2 Antenna Cable 1
See Table 1.2 (Choose one)
Option
1.3 Junction Box 1 500-100-1002 Option
1.4 Ethernet Linker (DC LAN Hub) 1 NS004721 Option
1.5 Flush Mounting Frame 1 9525-20 0 -740 70 Option
Table 1.0 Standard Parts for MX 510 Mode
Item Description Qty Part Number Remarks
1.0 MX512 Navigation System Includes the following:
1.0.1
MX512, 9 Port Control and Display unit (CDU)
1 512-000-0000 Standard
1.0.2 Mounting U-Bracket 1 510-100-2002 Standard
1.0.3 Mounting Knobs (set) 1 510-100-2006 Standard
1.0.4
MX512-JB Junction Box with cables:
Power/Data cable Ant. Cable Aux Cable 44-Pin Cable
1
1 1 1 1
512-100 -1001
500-100-2001 3508-102-70150 500-100-2001 512-100-2001
Standard
1.0.5 Operator & Installation Manual 1 510-100-2003 Standard
1.0.6 MX510/MX512 Quick Guide 1 510-100-2005 Standard
1.1 GPS or DGPS Smart Antenna 1
See Table 1.1 (Choose one)
Option
1.2 Antenna Cable 1
See Table 1.2 (Choose one)
Option
1.3 Tide Table Manuals 1 721714 Option
1.4 Ethernet Linker (DC LAN Hub) 1 NX004721 Option
1.5 Flush Mounting Frame 1 9525-20 0 -740 70 Option
Table 2.0 Standard Parts for MX 512 Model
Page 100
98 | Installation
Item Component Part Number
1.0 MX521A GPS Smart Antenna 727050
1.1 MX521A DGPS Smart Antenna 727051
1.2 MX525A DGPS Sensor 727061
1.3 MX421B-10 DGPS Smart Antenna 9525-200-80110
1.4 MX575A DGPS Satellite Compass 9525-200-80900
Table 1.1 Smart Antenna Selection Chart
Item Description Part Number
1.0 Antenna Cable (with one 10-pin Connector)
1.0.1 3 meters 3508-102-70150
1.0.2 20 meters 3508-102-70170
1.0.3 40 meters 35 0 8-10 2-7018 0
1.0.4 60 meters 3508-102-70640
1.0.5 80 meters 3508-10 2-70185
2.0 Antenna Cable (with two 10-pin Connectors)
2.0.1 3 meters 500-100-1008
2.0.2 20 meters 500-100-1006
2.0.3 40 meters 500-100-1007
2.0.4 60 meters 500-100-1009
Table 1.2 Antenna Cable Assembly Selection Char t
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