Nauticast NAUTICASTA2 NAUTICAST A2 User Manual

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PRODUCT MANUAL
Class-A SOLAS/Inland
AIS Transponder
Art. No. 100 1001
Nauticast GmbH
Lützowgasse 12-14 / 3.OG
1140 Vienna, Austria
T: +43 (1) 5 237 237-0
F: +43 (1) 5 237 237-150
office@nauticast.com
DISCLAIMER
Although Nauticast GmbH strives for accuracy in all its publications this material may contain errors or omissions and is
subject to change without prior notice. Nauticast GmbH shall not be made liable for any specific, indirect, incidental or
consequential damages as a result of the usage of this manual. Please visit our website for the latest manual revision at
www.nauticast.com if necessary.
COPYRIGHT PROTECTION
This document is protected by copyright law. Copying or duplicating be it physically or electronically for any usage other
than the operation of a Nauticast A2 AIS System is prohibited and any offender may be liable to the payment of damages.
Dieses Dokument ist urheberrechtlich geschützt. Jede Weitergabe oder Vervielfältigung dieser Unterlage ist ausschließlich
zur Unterstützung des Betriebes eines Nauticast A2 AIS Systems zulässig. Zuwiderhandlungen verpflichten zu
Schadenersatz.
Ce document est protégé par le droit d'auteur. Toute redistribution ou reproduction de ce document est autorisée
exclusivement pour appuyer le fonctionnement d'un système AIS A2 Nauticast. Les contrevenants seront passibles de
dommages-intérêts.
Este documento está protegido por derechos de autor. Cualquier redistribución o reproducción de este documento está
permitida exclusivamente para apoyar la operación de un sistema AIS A2 Nauticast. Los infractores quedan obligados por
daños y perjuicios.
GENERAL WARNINGS
All marine Automatic Identification System (AIS) units utilize a satellite based system such as the Global Positioning Satellite
(GPS) network or the Global Navigation Satellite System (GLONASS) network to determine their position. The accuracy of
these networks is variable and is affected by factors such as the antenna positioning, the number of satellites that are
available to determine a position and how long satellite information has been received for. It is desirable wherever possible
to verify both your vessel’s AIS derived position data and other vessels’ AIS derived position data with visual or radar
based observations.
In most countries the operation of an AIS unit is included under the vessel’s marine VHF license provisions. The vessel
onto which the AIS unit is to be installed must therefore possess a valid VHF radiotelephone license which lists the AIS
system and the vessel Call Sign and MMSI number. Please contact the relevant authority in your country for more
information.
LIMITED WARRANTY
This product is warranted against factory defect in material and workmanship for a period of 24 months from the date of
purchase. During the warranty period Nauticast GmbH will repair or at its option, replace the product at no cost to the
buyer provided that a return authorization is obtained from Nauticast GmbH, Lützowgasse 12-14 / 3. OG, 1140 Vienna,
Austria (see Section Contact & Support information). This warranty does not apply if the product has been damaged by
accident or misuse, or as a result of service or modification by unauthorized service personnel. For authorized service
partners see our homepage www.nauticast.com or contact Nauticast support directly.
Warranty and certification void if device is opened.
© 2014 Nauticast GmbH
Nauticast™ is a protected trademark of Nauticast GmbH
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Index
GENERAL INTRODUCTION ...................................................................................................................... 6
1.1
Description of AIS..................................................................................................................... 6
1.2
AIS Networks ........................................................................................................................... 8
1.3
Inland AIS................................................................................................................................ 8
SYSTEM OVERVIEW .............................................................................................................................. 9
2.1
Product Description .................................................................................................................. 9
2.2
Main features ......................................................................................................................... 10
INSTALLATION .................................................................................................................................. 11
3.1
Installation Requirements ....................................................................................................... 11
3.2
Installation Overview .............................................................................................................. 11
3.3
Mounting the NAUTICAST A2 .................................................................................................. 11
3.4
Mount the NAUTICAST A2 VHF antenna ................................................................................... 12
3.5
Mount the NAUTICAST A2 GPS Antenna .................................................................................. 13
3.6
Electrical Installation ............................................................................................................... 14
3.7
System Configuration.............................................................................................................. 19
OPERATION...................................................................................................................................... 20
4.1
System Mode ......................................................................................................................... 20
4.2
LED’s and Controls ................................................................................................................. 20
4.3
Main Menu – Tree View .......................................................................................................... 22
4.4
Configuration Parameters ........................................................................................................ 23
4.5
Alarm and Alert Pop-ups ......................................................................................................... 29
4.6
Status Bar .............................................................................................................................. 30
4.7
Status Icons ........................................................................................................................... 30
4.8
View Remote Ship Information ................................................................................................ 31
4.9
View Plot of Targets ............................................................................................................... 32
4.10 View Transmitted Own Ship Information .................................................................................. 32
4.11 Enter and Read Voyage Related Information ............................................................................ 33
4.12 Handling Safety Related Messages (SRM) and Text Messages ................................................... 33
4.13 Send Persons On Board .......................................................................................................... 34
4.14 Long Range Interrogations ...................................................................................................... 35
4.15 Inland ETA and RTA ............................................................................................................... 36
4.16 Inland Water Levels ................................................................................................................ 36
4.17 Regional Areas ....................................................................................................................... 37
4.18 Alarms ................................................................................................................................... 37
4.19 Status List .............................................................................................................................. 37
4.20 Non Functional Time ............................................................................................................... 38
4.21 GPS Status ............................................................................................................................. 38
4.22 View Raw Data ....................................................................................................................... 38
4.23 SW/HW Info........................................................................................................................... 39
4.24 VHF Status ............................................................................................................................. 39
4.25 Communication Test ............................................................................................................... 39
4.26 Update Software .................................................................................................................... 40
4.27 Restore Config ....................................................................................................................... 40
4.28 Save Configuration to USB memory ......................................................................................... 40
4.29 Load Configuration from USB memory ..................................................................................... 41
SOFTWARE UPGRADE.......................................................................................................................... 43
TECHNICAL SPECIFICATIONS................................................................................................................. 44
6.1
Transponder Physical .............................................................................................................. 44
6.2
Transponder Electrical ............................................................................................................ 44
6.3
Transponder Environment ....................................................................................................... 44
6.4
Transponder VHF Transceiver ................................................................................................. 44
6.5
Transponder Internal GPS Receiver ......................................................................................... 44
6.6
AIS Alarm Relay ..................................................................................................................... 44
TROUBLESHOOTING............................................................................................................................ 45
7.1
Troubleshooting Prerequisites ................................................................................................. 45
7.2
Troubleshooting with the Front Panel LED’s ............................................................................. 45
7.3
Troubleshooting with Alarm Messages ..................................................................................... 45
7.4
Troubleshooting via the Display ............................................................................................... 47
7.5
Reporting Intervals for Class A Transponders ........................................................................... 49
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7.6
F.A.Q ..................................................................................................................................... 50
7.7
Contact & Support information ................................................................................................ 50
7.8
Indication Messages ............................................................................................................... 51
7.9
Long Range Definitions ........................................................................................................... 51
INTERPRETATION OF INPUT SENTENCES .................................................................................................. 52
8.1
GPS and Sensor Input Sentences ............................................................................................. 52
8.2
General Input Sentences ......................................................................................................... 55
8.3
AIS Specific Input Sentences ................................................................................................... 56
8.4
Long Range Input Sentences .................................................................................................. 58
8.5
Proprietary Input Sentences .................................................................................................... 58
INTERPRETATION OF OUTPUT SENTENCES ................................................................................................ 59
9.1
Proprietary Output Sentences (PSTT) ...................................................................................... 59
9.2
Long Range Output Sentences ................................................................................................ 60
9.3
AIS Output Sentences ............................................................................................................. 61
10 GLOSSARY ....................................................................................................................................... 65
10.1 Inland ERI Ship Types ............................................................................................................ 67
10.2 Units...................................................................................................................................... 68
11 APPENDIX ........................................................................................................................................ 69
11.1 Appendix A – Drawings ........................................................................................................... 69
11.2 Appendix B – License .............................................................................................................. 72
11.3 Appendix C – Declaration of Conformity ................................................................................... 75
11.4 Appendix D – Certification ....................................................................................................... 76
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History of Changes
Date
2013-07-15
2014-01-28
2014-09-30
Version
1.2
1.3
2.0
Status
Release
Release
Release
Comments
First Official Release
Changes due to SW update
Nauticast, Certification, general rework
Responsible
Ch. Aschl
Ch. Aschl
V. Janik
Software dependencies
This revision of the Manual is valid for the Software version (s) below stated and future versions unless
otherwise noted. Please find further information on the Nauticast homepage (www.nauticast.com).
Date
AIS software Version
Status
Comments
Responsible
2014-07-01
1.1.10
Release
Type approved
V. Janik
Current software version can always be verified in the S/W info dialog as described in section 4.23.
Safety Instructions
Note the following compass safe distances:
Equipment
Standard magnetic compass
Nauticast A2 Transponder
0.60 m
Steering magnetic compass
0.45 m
Disposal Instructions
Broken or unwanted electrical or electronic equipment parts shall be classified and handled as ‘Electronic
Waste’. Improper disposal may be harmful to the environment and human health. Please refer to your local
waste authority for information on return and collection systems in your area.
Contact Information
For installation, service, ordering info and technical support please contact your local Nauticast service partner.
A list of dealers and service stations can be found on our website http://www.nauticast.com.
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1
1.1
General Introduction
Description of AIS
AIS stands for: “Automatic Identification System”
What is AIS?
According to IALA regulations, AIS is defined as follows:
AIS is a broadcast transponder system, operating in the VHF maritime mobile Band (161,975 and 162,025
MHz). It is capable of sending ship information such as identification, position, course, speed and more to
other ships and to shore stations. It can handle multiple reports at rapid update rates and uses Self-Organizing
Time Division Multiple Access (SOTDMA) technology to meet these high broadcast rates and ensure reliable
and robust operation.
The Modules of an AIS are:
 DGPS / GPS receiver
 VHF Radio
 Antenna
 Computer (CPU)
 Power Supply
Appropriate application software connects the individual modules.
In which modes do AIS operate?
AIS devices are required to function flawlessly in a variety of modes. The relevant regulations require that the
system shall be capable of
 An "autonomous and continuous" mode for operation in all areas. This mode shall be capable of being
switched to/from one of the following alternate modes by a competent authority;
 An "assigned" mode for operation in an area subject to a competent authority responsible for traffic
monitoring such that the data transmission interval and/or time slots may be set remotely by that
authority;
 A "polling or controlled" mode, where the data transfer occurs in response to interrogation from a ship
or competent authority.
Types of AIS:
 Class A Transponder – This type of transponder is used on open sea waters and is mandatory for ships
of 300 gross tonnage or more on international voyages, all cargo ships of 500 gross tonnage or more
and on passenger ships.
 Class B Transponder – Used on smaller vessels and pleasure crafts. It transmits with less power than
class A transponders and has a lower priority ranking on the data link.
 Base Station – Fixed shore station that is typically connected to an AIS network to collect information
from all vessels around a certain port or shore line.
 Repeater Stations – Used to extend the coverage range by repeating incoming messages. Can be
implemented as a function in an AIS Base station or an AtoN station.
 SAR (Search and Rescue) Transponder – Used on airplanes and helicopters in search and rescue
missions.
 AtoN (Aids to Navigation) – A transceiver that is fitted on buoys and lighthouses in order to send
information about their positions.
 Inland AIS – A European standardized extension to Class A systems for use on inland water ways. An
inland transponder has additional messages to communicate with bridges, ports and locks and can
also send some additional information that are useful on water ways such as blue sign indication,
specific hazardous cargo etc.
 SART (Search and Rescue Transmitters) – Distress beacons for life rafts. An active SART signal will
always be sorted at the top of the target list to highlight its presence.
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AIS in an Operational Environment
This illustration depicts a typical AIS System, where two or more AIS equipped vessels (and
shore based systems) are automatically communicating with each other.
Figure 1 – AIS System
Both vessels in the above illustration are equipped with a NAUTICAST A2 (or any other certified AISTransponder). Due to “Time – Synchronization” they use the same organization of free and allocated
windows (Slots) in the shared VHF Data Link (this method is called “Self Organized Time Division Multiple
Access”) to send and receive messages.
On the next page, a typical NAUTICAST A2 installation in a common environment is shown. The NAUTICAST
A2 is connected to the vessel’s emergency power supply, and in connection with the VHF, and GPSAntennas, the minimal requirements for transponder operation are fulfilled. By means of standardized
messages the involved AIS systems exchange certain static data and dynamic information, such as the
location and the course of the other ships in the area.
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1.2
AIS Networks
The illustration below shows a full AIS covered area (including applications and shore infrastructure).
Figure 2 – AIS Network
1.3
Inland AIS
The AIS Inland Standard is an European extension to class A devices for use on inland waterways. AIS Inland
transponders support additional messages for communication with Bridges, Ports and locks. Blue Sign or
dangerous cargo messages can also be transmitted.
Note:
The NAUTICAST A2 AIS can operate in both modes, standard (SOLAS) class A and Inland, depending the
user’s needs.
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2
2.1
System Overview
Product Description
The NAUTICAST A2 System consists of a transceiver radio unit, a GPS receiver, a controller unit and a colour
LCD with a numerical keypad. The radio has three receivers, two tuneable TDMA receivers and one DSC
receiver. The transmitter alternates its transmissions between the two operating TDMA. The controller unit
creates and schedules data packets (containing dynamic, static and voyage related data) for transmission
based on the IMO performance standard for AIS.
The NAUTICAST A2 shall be connected to the ship’s sensors as required by the installation guidelines published
by IALA. The NAUTICAST A2 can interface external navigation and presentation systems that support required
IEC 61162-1 sentences. Refer to chapter 8 for more information. The NAUTICAST A2 is prepared for connection
to Long Range systems like Inmarsat C.
The colour LCD and numerical keypad provides a graphical user-friendly interface to the system. It is possible
to plot the location of other vessels, aids to navigation and search and rescue vessels. The LCD and numerical
keypad can also be used to send and receive messages, perform configuration as well as supervise the systems
status.
Figure 3 – System Overview
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2.2
Main features














Multi-colour 3.5” LCD with numerical keypad interface.
USB Host interface for connection of USB keyboard and USB flash memories.
Individual visual display settings for day and night operations.
Broadcast of Dynamic, Static and Voyage related information.
Standardized interface for connection to ship sensors e.g. GNSS, Gyro, Rate of Turn Indicator,
ECDIS/ECS and ARPA.
Plot capable of presenting up to 500 targets in the vicinity of the own ship.
Messaging views for generation and presentation of safety related messages and text messages.
Pilot plug integrated to the front of the transponder unit.
Channel management capability for areas without access to the worldwide allocated AIS frequencies.
Possibility to generate Long Range AIS reply over satcom equipment such as Inmarsat C.
In addition to the normal high (12,5W) and low (1W) power mode, the NAUTICAST A2 has a 1W
tanker mode in accordance with requirements for tanker operations in port.
Reception and processing of AIS messages 18,19 and 24A/B as transmitted by AIS Class B ‘CS’
Transponders.
Easily upgraded with the latest software release from Nauticast using USB memory.
Save/Restore configuration using USB Storage.
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3
Installation
IMPORTANT: AUTHORITIES MANDATE that after the physical installation has been successfully
completed, all ship data and settings be entered into the AIS transponder. See Section 4 for further
instructions.
3.1
Installation Requirements
General Requirements
Please note that international conventions, regulations, instructions and guidelines have to be followed when
installing the NAUTICAST A2.
The following points must be observed before installation can commence:
- Permission by the local authority to install such a device must be granted.
- Trained service personnel must undertake the installation.
- The NAUTICAST A2 must be fitted in a suitable place on the bridge.
- The VHF and GPS Antennas must be installed in a suitable position, where excellent reception
conditions apply (refer to Chapter 3.4)
- All available interfaces must be installed.
- The vessels power supply must suffice, and the GMDSS power supply has to be used.
- Installation of the pilot plug in conning position (close to the pilot’s work place).
3.2
Installation Overview
Basic Equipment:
Name
Part number
NAUTICAST A2 AIS Transponder
1001001
SOLAS Class A & Inland AIS
Documentation for Nauticast A2
1001001-1
Power Cable 2m
1001002
Table 1 – NAUTICAST A2 Basic Equipment
Qty.
AIS is considered part of the ship’s radio station and is surveyed together with radio installation. Surveys on
SOLAS Convention ships should be carried out in accordance with the rules laid down in IMO Res. A 746(18)
"Survey Guidelines under the harmonized system of survey and certification" (R) 8, and "Protocol of 1988
relating to the International Convention for the Safety of Life at Sea, 1974."
The NAUTICAST A2 consists of one unit, which integrates all necessary modules.
Step-by-Step Installation Procedure:
When installing the NAUTICAST A2, it is recommended to follow the steps described in this manual. Details of
the installation procedure can be found in the coming sections.
Recommended installation steps:
1. Mount the NAUTICAST A2 at conning station
2. Mount the alarm relay unit (if available)
3. Mount the VHF antenna
4. Mount the GPS antenna
5. Connect antennas, all external systems and sensors to the NAUTICAST A2
6. Power up the system
7. Set configuration parameters
8. Perform system functional check
9.
3.3
Mounting the NAUTICAST A2
3.3.1 Location
The NAUTICAST A2 should be mounted close to the position from which the ship is normally operated,
preferably on the bridge console close to the conning position.
When mounting the NAUTICAST A2, please consider the following:
 The NAUTICAST A2 shall be connected to ship ground using the earth terminal found on the rear plate.
 The temperature and humidity should be moderate and stable at the place of mounting, +15ºC to +35ºC
(Operating temperature: -15ºC to +55ºC.)
 Select a location away from excessive heat sources
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





Ensure that there is enough airflow to avoid high ambient temperatures
Avoid areas where there is a high flow of humid salt air
Avoid places with high levels of vibrations and shocks
Avoid mounting the NAUTICAST A2 in direct sunlight for the best readability
Ensure that the cables can be connected without violating their minimum bending radius
The unit can affect magnetic compasses. The minimum compass safe distance is 0.60 meters to a standard
magnetic compass and 0.45 meters to a steering magnetic compass
Regarding the physical size please see the Appendix A – Drawings containing all mechanical drawings.
3.4
Mount the NAUTICAST A2 VHF antenna
Interference to the Ship’s VHF Radiotelephone
The AIS ship borne equipment, like any other ship borne transceiver operating in the VHF maritime band, may
cause interference to a ship’s VHF radiotelephone. Because AIS is a digital system, this interference may occur
as a periodic (e.g. every 20 seconds) soft clicking sound on the ship’s radiotelephone. This affect may become
more noticeable if the VHF radiotelephone antenna is located close to the AIS VHF antenna, and when the
radiotelephone is operating on channels near the AIS operating channels (e.g. channels 27, 28 and 86).
Attention should be paid to the location and installation of the various antennas, in order to support the
antenna characteristics in the best possible way.
3.4.1 VHF Antenna Location
Location of the mandatory AIS VHF-antenna should be carefully considered. Digital communication is more
sensitive than analogue/voice communication to interference created by reflections caused by obstructions
such as masts and booms. It may be necessary to relocate the VHF radiotelephone antenna to minimize
interference effects.
To minimize interference effects, the following guidelines apply:
 The AIS VHF antenna should have omnidirectional vertical polarization.
 The AIS VHF antenna should be placed in an elevated position, as free standing as possible, with a
minimum of 2 meters in horizontal direction from constructions made of conductive materials. The antenna
should not be installed close to any large vertical obstruction. The AIS VHF antenna should have a visible
sky of 360°.
 The AIS VHF antenna should be installed at least 3 meters away from interfering high-power energy
sources such as radar and other transmitting radio antennas, and out of the way of the transmitting beam.
 There should not be more than one antenna on each level. The AIS VHF antenna should be mounted
directly above or below the ship’s primary VHF radiotelephone antenna, with no horizontal separation and
a minimum of 2 meters vertical separation. If it is located on the same level as other antennas, the distance
apart should measure at least 10 meters.
3.4.2 VHF Cabling
The cable should be kept as short as possible to minimize attenuation of the signal. Double shielded coaxial
cable equal or better than RG214 is recommended to minimize the effects from electromagnetic interference
from high power lines, radar or other radio transmitter cables.
The table below gives recommendation on cables that can be used for the VHF-antenna connections, the
cables used should always be of marine approved type. The cable attenuation shall be kept as low as possible;
a 3 dB loss is the same as cutting the signal strength in half.
Type
Attenuation @ 150  (mm)
MHz (dB/100m)
RG 214
RG 217
RG 225
Weight (kg/100m)
10.8
13.8
18.5
30.1
23.3
10.9
Table 2 – VHF Antenna Cables
Example: A cable of 40 meter RG 214 has a cable attenuation of 2.8 dB.
All outdoor connectors on the coaxial cables should be fitted with preventive isolation, such as shrink-stocking
with silicone to protect the antenna cable against water penetration. Coaxial cables should be installed in
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separate signal cable channels/tubes, and at least 10 cm away from any power supply cables. Crossing of
cables should take place at right angles (90°). Coaxial cables should not be exposed to sharp bends, which
may lead to changes to the characteristic impedance of the cable. The minimum bend radius should be 5 times
the cables outside diameter.
Grounding
Coaxial down-leads must be used for all receiving antennas, and the coaxial screen should be connected to
the ground at one end.
3.5
Mount the NAUTICAST A2 GPS Antenna
The NAUTICAST A2 shall be connected to a GPS antenna type Procom GPS-4 (1001022), Nauticast Standard
GPS antenna (3001002) or to a combined GPS/VHF antenna AC Marine VHF/GPS-2 (1001027). 5V DC is
supplied through the antenna lead for the antenna preamplifier.
Please note the Compass Safe Distances in section 6.3 “Transponder Environment”.
If the combined AC Marine GPS/VHF antenna is used the diplexer unit shall be installed in an indoor
environment.
Attention should be paid to the location and installation of the different antennas on the ship in order to obtain
the best possible efficiency. How and where the GPS antenna and cable is installed will greatly affect its sensing
efficiency.
3.5.1 GPS Antenna Location
The GNSS antenna must be installed where it has a clear view of the sky, so that it accesses the horizon freely
through 360°, with a vertical observation of 5 to 90 degrees above the horizon. Small diameter obstructions,
such as masts and booms, do not seriously impair signal reception, but such objects must not eclipse more
than a few degrees of any given bearing.
The antenna must be located at least three meters away from, and out of the transmitting beam of highpower transmitters (S-Band Radar and/or Inmarsat systems). This includes the ship’s own AIS VHF antenna,
if it is designed and installed separately.
If a DGNSS system is included or connected to the AIS system, the installation of the antenna should be
undertaken in accordance with IEC 61108-4, Edition 1.
3.5.2 GPS Cabling
The gain of the GPS antenna built-in pre-amplifier shall match the cable attenuation. The resulting installation
gain (pre-amplifier gain minus cable attenuation) shall be within 0 to 26 dB. A minimum value of 10 dB is
recommended for optimum performance.
A double shielded coaxial cable is recommended. The coaxial cable should be routed directly between the GPS
antenna and the NAUTICAST A2 GPS connector in order to reduce electromagnetic interference effects. The
cable should not be installed close to high-power lines, such as radar or radio transmitter lines or the AIS VHF
antenna cable. A separation of 1 meter or more is recommended to avoid interference due to RF-coupling.
Crossing of antenna cables should be done at 90 degrees to minimise magnetic field coupling.
The table below gives recommendation on cables that can be used for the Transponder GPS-antenna
connections, the cables used should always be of marine approved type. Due to the high frequency it’s
important that the attenuation in the cable is low for the specific frequency (1.5 GHz).
Type
RG
RG
RG
RG
RG
58
400
223
214
225
Attenuation @ 1.5  (mm)
GHz (dB/m)
0.9
0.6
4.95
0.6
5.40
0.35
10.8
0.3
10.9
Table 3 – GPS Antenna Cables
Weight (kg/100m)
3.7
6.3
5.5
18.5
23.3
For optimum performance approximately +10dB gain should be available when the cable attenuation has been
subtracted from the GPS-antenna preamplifier gain. The net gain shall not exceed +26dB.
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Example:
Cable type
RG
RG
RG
RG
RG
RG
RG
RG
RG
58
58
58
223
223
223
214
214
214
Preamplifier
Required min cable Recommended max.
gain (dB)
length (m)
cable length (m)
12
26
18
30
4.5
22
12
3.5
26
26.5
30
6.5
33.5
12
26
46
30
11.5
57
Table 4 – GPS Antenna Cable Examples
Min length = (Preamp. Gain – 26 dB)/Cable attenuation per meter
Max length = (Preamp. Gain – 10 dB)/Cable attenuation per meter
Coaxial cables (marine approved type) should be installed in separate signal cable channels/tubes and at least
10 cm away from power supply cables. Crossing of cables should be done at right angles (90°).
Coaxial cables should not be exposed to sharp bends, which may lead to a change of the characteristic
impedance of the cable. The minimum bending radius should be 5 times the cable's diameter.
All outdoor installed connectors should be weather proofed, e.g. with shrink tubing, watertight seal tape or
butyl rubber tape and plastic tape sealing, to protect against water penetration into the antenna cable.
Secure the cable properly near the cable ends.
Grounding
Coaxial down-leads must be used. The coaxial shielding screen should be connected to ground at one end.
3.6
Electrical Installation
The protocol of the serial port interfaces is compliant to IEC 61162-1Ed.4 (2010-11).
All serial ports in the NAUTICAST A2 have the same capabilities with one exception, any Long Range equipment
must be connected to the Long Range port.
The primary external position sensor should be connected to the Sensor 1 port since this port has the highest
priority. The serial ports in the NAUTICAST A2 can also receive differential corrections in RTCM format for
correction of the internal GPS receiver. The ports in the NAUTICAST A2 have different default baud rates but
they can all be configured to any baud rate of 4800, 9600, 38400, 57600 or 115200 bps. The priority levels
for input of sensor data on the different ports are listed below:
Priority
1 (Highest priority)
Identification
Sensor 1
Default Baud Rate
4800 bps
Sensor 2
Sensor 3
ECDIS
4800 bps
4800 bps
38400 bps
Long Range
9600 bps
Pilot
38400 bps
(Lowest priority)
RS-232
38400 bps
Port direction
Input
(See note 1)
Input
Input
Input / Output
(See note 2)
Input / Output
(See note 2)
Input / Output
(See note 2)
Input / Output
(See note 2)
Table 5 Port Priorities and Default Baud Rates
NOTE 1: This means that if valid position data from external position sources are input on e.g. both Sensor 1
and ECDIS port, the position data from Sensor 1 will be used.
NOTE 2: Output will be limited if baud rate is below 38400 bps. VDM and VDO messages will not be output.
If the same data is provided using different NMEA sentences on the same port, the priority depends on the
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sentence in accordance with
Priority
1 (Highest)
Table 6.
Position
RMC
GNS
GGA
GLL
COG/SOG
HDG
RMC
THS
VTG
HDT
VBW
OSD
OSD
Table 6 – Sentence priority
ROT
ROT
3.6.1 Output Drive Capacity for Serial Ports
Each serial port transmitter in the NAUTICAST A2 can have a maximum of 25 listeners consuming 2.0 mA
each.
3.6.2 Input Load
Input impedance for each listener input is 6.4 kΩ.
3.6.3 Schematics of a NAUTICAST A2 Serial Transceiver
Each of the RS422 serial interfaces on the NAUTICAST A2 fulfils the requirements of IEC 61162-2 and IEC
61993-2. A detailed schematic of one of the serial ports in the NAUTICAST A2 is shown below.
ISO Power
To connected
equipment
Internal
Signals to AIS
Figure 4 – Serial Port Schematics
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3.6.4
3.6.5
Data Interface Cable with open ends, 1001003
Pin
In/Out Signal Name
Signal Type
Colour
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Out
Out
In
In
In
In
In
In
In
In
In
In
Out
Out
Out
ECDIS - TxB (+)
ECDIS - TxA (-)
Sensor1 - RxB (+)
Sensor1 - RxA (-)
Sensor2 - RxB (+)
Sensor2 - RxA (-)
Long Range - RxB (+)
Long Range - RxA (-)
Long Range - GND
ECDIS - GND
ECDIS – RxB (+)
ECDIS – RxA (-)
Sensor1 – GND
Sensor2 – GND
Sensor3 – RxB (+)
Sensor3 – RxA (-)
Long Range – TxB (+)
Long Range – TxA (-)
Alarm Relay – GND
Alarm Relay – Out
GND
Sensor3 – GND
Alarm Relay - VCC
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
RS422
White
Brown
Green
Yellow
Grey
Pink
Blue
Red
Black
Violet
Grey / Pink
Red / Blue
White / Green
Brown / Green
White / Yellow
Yellow / Brown
White / Grey
Grey / Brown
White / Pink
Pink / Brown
White / Blue
Brown / Blue
White / Red
Brown / Red
25
In/Out
CAN (+)
Differential
CAN bus
White/Black
26
In/Out
CAN (-)
Differential
CAN bus
Table 7 – 26-pin High Density D-sub
Brown/Black
RS232 Data Cable
Pin
Signal Name
Not Connected
Tx (Transponder side)
Rx (Transponder side)
Not Connected
GND
Not Connected
Not Connected
Not Connected
Not Connected
Table 8 – 9-pin female D-sub
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3.6.6
Power Cable, 1001002
Pin
Signal Name
Colour
24VDC positive
Red
GND
Black
External Switch (R)
Brown
External Switch (F)
Orange
Table 9 – 4-pin male circular ConXall
3.6.7 External Switch
The Power Cable enables connection of an external switch to the NAUTICAST A2. This switch can be used as
a Silent switch or, if configured as an Inland AIS system, as a Blue sign switch.’
3.6.7.1 Blue Sign installation (Inland Mode only)
If the blue sign switch should be used, the parameter “External Switch” must be configured to “Blue Sign” in
Misc. Interface view accessed from Main Menu  Config  Interfaces  Miscellaneous.
The status of the blue sign can be controlled by input on the brown and orange wires of the Power Cable.
The status of the Blue Sign will be read by the NAUTICAST A2 and output on the VHF data link when operating
in “Inland Mode” (see section 4.4.16 for more details). Connect the blue sign switch to pin 3 (brown wire) and
pin 4 (orange wire) of the Power Cable together with an external parallel resistor. When the switch is open,
blue sign will be off. When the switch is closed, blue sign will be on.
The external resistor value depends on the power supply voltage the NAUTICAST A2 is using:
 12V: 2.2kΩ resistor, 10% tolerance, at least 1/8W power rating
 24V: 10kΩ resistor, 10% tolerance, at least 1/8W power rating
Power Cable Pin 3
Power Cable Pin 4
External resistor
BLUE SIGN
SWITCH
Figure 5 – Blue Sign Switch
3.6.7.2 Silent switch installation
It is possible to connect a silent switch to the NAUTICAST A2 to quickly turn off transmissions.
If a silent switch is to be used, the parameter “External Switch” must be configured to “Silent Switch” in Misc.
Interface view accessed from Main Menu  Config  Interfaces  Miscellaneous.
The silent switch should be connected in the same way as the blue sign switch. However, the external resistor
may be omitted for the silent switch.
When the circuit is closed (brown and orange wires connected with each other), the NAUTICAST A2 will
transmit as normal. When the circuit is open, the NAUTICAST A2 will be completely silent.
3.6.8 Alarm Relay
It is required that the AIS alarm output (relay) is connected to an audible alarm device or the ship’s alarm
system, if available.
Alternatively, the ship’s BIIT alarm system may use the alarm messages output on the AIS Presentation
Interface (PI) provided the alarm system is AIS compatible. The AIS Alarm Relay is either mounted directly on
a board or on the wall.
The alarm relay wires have the following colour codes in the 26-pole NAUTICAST A2 data interface cable:
RELAY VCC
Brown/Red
RELAY GND
White / Pink
RELAY OUT
Pink / Brown
Table 10 – Alarm Relay Wires
Figure 6 shows the alarm relay and its dimensions and explains how to connect the alarm relay to the data
cable and how to connect the load (Alarm Circuit) to the alarm relay. The operating voltage of the alarm relay
is 3 to 60 VDC with a load current of 0.1 to 2 A (3A when using a heat sink).
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Transponder:
RELAY OUT
RELAY VCC
RELAY GND
Ext. Power Supply:
- (GND)
+12 to 32VDC
Figure 6 – Alarm Relay
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3.7
System Configuration
When the physical and electrical installation of the system is complete, the NAUTICAST A2 needs to be
configured. The installer is required to set the parameters listed below. For detailed information about the
configuration parameters and how to set them, refer to section 4.2.1 and 4.4.
 MMSI number (Maritime Mobile Service Identity)
 IMO vessel number (should be set to zero for Inland vessels)
 Call Sign
 Ship Name
 Ship Type (Only when operating in Class A mode)
 Height Over Keel
 Ship dimensions and antenna positions. Refer to section 4.4.4 Main Menu  Config Ship Dimensions
for more information.
If the NAUTICAST A2 is operating in Inland mode, the following parameters also need to be configured:
 ENI, Unique European Ship Number
 ERI Ship Type (ERI code and standard AIS ship type will be set automatically by the NAUTICAST A2
when selecting an ERI Ship Type from list in Ship Static view.
 Quality setting for SOG, COG and HDG. Should be set to low if no type approved sensor (e.g. a gyro
or speed log) is connected to NAUTICAST A2.
When the NAUTICAST A2 has been installed according to the procedures described in previous sections, it is
recommended to make a first functional check of the system. Check the following things to ensure that the
NAUTICAST A2 is fully functional.
 Check the Transmitted Own Ship Data view to make sure that the configured data is sent by the
NAUTICAST A2 on the VHF link, refer to section 4.10 “View Transmitted Own Ship Information” for
more information.
 Make sure that there are no unexpected active alarms in the alarm list, see section 4.18 “Alarms”.
 Perform a communication test to ensure that the NAUTICAST A2 can send and receive messages from
other AIS transponders. Refer to section 4.25 “Communication Test” for information on how to perform
a communication test.
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4
4.1
Operation
System Mode
The NAUTICAST A2 can operate in two different system modes, Class A mode and Inland mode. The Class A
mode should be used for vessels falling under the carriage requirements of Chapter V of the International
Convention for the Safety of Life at Sea (SOLAS).
The Inland mode should be used for vessels travelling on European inland waterways that falls under the
carriage requirements of European River Information Services (RIS). When Inland mode is enabled, additional
views for ETA/RTA messaging and convoy settings will be enabled. The NAUTICAST A2 will also output binary
messages with Inland Static and Voyage data.
As default, the NAUTICAST A2 will operate in Class A mode. It is possible to switch system mode in the System
Settings view, see section 4.4.16 for more information.
4.2
LED’s and Controls
This section describes the controls and status LED’s on the front panel of the NAUTICAST A2. It is also possible
to connect a USB keyboard via the USB Host interface that can be found under the hatch of the front panel.
Figure 7 –Nauticast A2 Front View
1. STATUS LED (multi-colour)
This LED is constant green when the transponder is operating and no alarms are active. The LED is constant
red if there is an active alarm and it is flashing red if there is an unacknowledged alarm.
2. RX LED (yellow)
This LED is flashing yellow when the transponder is receiving a message on the VHF link.
3. TX LED (red)
This LED is flashing red when the transponder is transmitting a message on the VHF link.
4. LIGHT SENSOR
The light sensor will automatically dim the backlight of the display depending on measured input light to the
sensor.
5. ARROW KEYPAD and ENTER
The arrow keypad (< > and ∧ ∨) is used to navigate in menus, lists and edit fields. The center button of the
keypad is an ENTER button which is used to select the highlighted choice in a menu, list or edit control.
6. ESC
The ESC button is used to return to the previous screen or to cancel an edit change of a data field.
7. ALPHANUMERIC KEYS
These keys are used for entering text and numbers. To write a number in a numeric field, press the key once.
To write a character in a text field, press once for the character associated with the key, twice for the second
character and so on. When pressing twice on key “1” when editing a text field, a popup view with special
characters appears. Choose the desired special character by using the ARROW KEYPAD and ENTER.
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When a USB keyboard is used, the normal letters, numbers and special characters can be used. Only American
keyboard layout is supported.
8. OPT
This button is an “Option key” which is only active in some of the dialogs. When pressed, it gives the user a
list of options that can be performed on the highlighted item. In e.g. the Target List view the OPT button can
be used to send an SRM to the highlighted target. In the Main Menu view, the OPT button is used to quickly
change navigational status. When a USB keyboard is used, the ALT button of the keyboard corresponds to
OPT button on the NAUTICAST A2 keypad.
If the OPT button is pressed for more than 5 seconds, the visual settings in the NAUTICAST A2 will be restored
to default, i.e. LCD backlight, LED intensity and button backlight will all be 80% and day mode will be used.
9. BACKSPACE
The BACKSPACE button is used to erase the character to the left of the marker in an edit field.
4.2.1 Change Settings of a Parameter
Several of the views in the NAUTICAST A2 contain parameters that can be edited. To edit a parameter, select
it by using the ARROW KEYPAD and press ENTER.
Then enter data in one of the following ways:
 Numbers: Press the ALPHANUMERIC KEY that corresponds to each digit. To delete a digit, press
function key BACKSPACE. Some of the parameters are decimal numbers. The OPT button can then
be used to insert a decimal point.
 Text: Press the ALPHANUMERIC KEY that corresponds to each character. Press the key once for
the first character, twice for the second character and so on. Press the key “1” twice to, where allowed,
bring up a menu for entering special characters. To delete a character, press function key
BACKSPACE. When entering passwords both lower and upper case letters can be used. To change
between upper and lower case letters, press function key OPT and choose “Caps Lock Off” or “Caps
Lock On”.
 List of predefined values: Use the ∧ ∨ keys to select between the predefined values.
 List of predefined values and numeric input: In some of the views like the AIS Message Send
view where it is possible to send an SRM to a target, it is possible to select an MMSI in a list of
predefined values. The predefined MMSI values are the MMSI numbers that have been received by
the transponder. It is also possible to enter a new MMSI number that has not been received yet. To
do this, simply input a numerical value with the ALPHANUMERIC KEYS.
Press ENTER when done. If desired, use the ARROW KEYPAD keys to select a new parameter to be edited,
or navigate to the Save/Send button located above the list of parameters and press ENTER to save the
parameters / send the message.
Use the ESC key to undo changes and to return to the previous view.
NOTE: DO NOT TURN OFF TRANSPONDER WITHIN 2 SECONDS OF A PARAMETER CHANGE!
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4.3
Main Menu – Tree View
Figure 8 – Menu Tree
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4.3.1 Navigating in Menus
Use the ARROW KEYPAD buttons < > and ∧ ∨ to navigate between the view buttons in the different menus.
Press the ENTER button to enter the currently selected view. It is also possible to directly select a view by
pressing the ALPHANUMERIC KEY that corresponds to the number in the upper left corner of the view
button.
Figure 9 – Main Menu
4.4
Configuration Parameters
This section describes the different configuration parameters that can be set in the NAUTICAST A2. Some of
the parameters will only be available when operating in “Class A” mode; these parameters are marked with
light grey. Parameters that are only available when operating in “Inland” mode are marked with dark grey.
Common parameters for both system modes are white.
4.4.1 Main Menu  Voyage AIS Voyage
The parameters in AIS Voyage view are used for input of voyage specific information that is sent over the AIS
link. These parameters should typically be configured before each voyage.
When the NAUTICAST A2 system mode is set to “Inland”, additional voyage parameters for inland water way
voyages are available. The system mode can be configured in the System Settings view described in section
4.4.16.
Parameter Name
Description
Navigational Status
Changes the navigational status reported by own ship.
It is also possible to quickly change navigational status by
pressing the OPT button when standing in the Main Menu.
Destination
The destination for the current voyage
Estimated Time of Arrival (ETA)
The estimated time of arrival to destination of current voyage
Draught (Class A)
The vertical distance measured from the lowest point of a
ship’s hull to the water surface, in meters (one decimal
precision)
Persons on Board
Total number of persons on board
Hazardous Cargo (X,Y,Z,OS)
Classification of current cargo according to X,Y,Z,OS
Draught (Inland)
The vertical distance measured from the lowest point of a
ship’s hull to the water surface, in meters (two decimal
precision)
Air Draught
The vertical distance measured from the ship’s waterline to
the ship’s highest point, in meters (two decimal precision)
Hazardous Cargo (Blue Cones)
Blue cone classification of cargo
Loaded / Unloaded
Specifies if the ship cargo is loaded or unloaded
Crew Members
Number of crew members on board
Passengers
Number of passengers on board
Personnel
Number of shipboard personnel on board
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4.4.2 Main Menu  Operational Mode
Parameter Name
Tx Mode
Description
This parameter determines the transmission of the
NAUTICAST A2. If set to “Silent”, the NAUTICAST A2 will be
completely silent on the VHF radio and it will not answer on
interrogations.
If a silent switch is used, this parameter will be locked and
“Silent Switch Used” will be displayed as parameter value.
4.4.3 Main Menu  Config Ship Static
Parameter Name
Description
MMSI
Maritime Mobile Service Identity reported by own ship
IMO
International Maritime Organization number reported by own
ship
Ship Name
Ship name reported by own ship
Call Sign
Call sign reported by own ship.
Shall be set to ATIS code for Inland vessel installations.
Height over Keel
Height over keel in meters (one decimal precision).
Height over Keel information is sent as a response to an
“Extended Ship Static and Voyage Related Data” request
message.
Ship Type (IMO)
Type of Ship according to ITU-R M.1371-4. Both numerical
input and selection from list is possible.
ENI
Unique European Vessel Identification Number reported by
own ship
ERI Ship Type
Ship or combination type according to numeric ERI
classification. Both numerical input and selection from list is
possible. See chapter 10.1 “Inland ERI Ship Types” for
available types.
Quality Speed
Shall be set to low if no type approved speed sensor is
connected to transponder
Quality Course
Shall be set to low if no type approved course sensor is
connected to transponder
Quality HDG
Shall be set to low if no type approved heading sensor is
connected to transponder
4.4.4 Main Menu  Config Ship Dimensions
The parameters in the Ship Dimensions view depends on the configuration parameter “Ship Size Mode” in the
Misc Interfaces view. The Ship Size Mode parameter can be set to either Standard or Simplified (default). The
Ship Size Mode affects how the user should input ship size and antenna position information and how it is
interpreted.
Standard Mode
In this mode the user must input:
 Convoy/ship length [m] (one decimal precision)
 Convoy/ship beam [m] (one decimal precision)
 A, B, C, D for internal antenna [m]
 A, B, C, D for external antenna [m]
It is the users responsibility to input correctly rounded data ( A+B = Convoy/ship length rounded up, C+D =
Convoy/ship beam rounded up).
If the user inputs data which is not correctly rounded the “Ship size mismatch” alarm will be activated.
The output on the AIS data link will be exactly the values input by the user.
Simplified Mode (default)
In this mode the user inputs:
 Ship length [m] (one decimal precision)
 Ship beam [m] (one decimal precision)
 X, Y for internal antenna relative to ship [m] (one decimal precision)
 X, Y for external antenna relative to ship [m] (one decimal precision)
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When operating in Inland Mode, extra convoy size can be added to ship dimension
Extra convoy size on each side (value = 0 if convoy not used):
 Bow [m] (one decimal precision)
 Stern [m] (one decimal precision)
 Port side [m] (one decimal precision)
 Starboard [m] (one decimal precision)
The extra convoy parameters can be configured from Main MenuVoyageConvoy Settings when the
Ship Size Mode is set to “Simplified”.
In this mode there is no way for the user to input mismatching data, all parameters uses the same precision
and each measurement is entered only once (in standard mode it is for example possible to enter three
different lengths of ship: Convoy/ship length, internal A+B and external A+B). In simplified mode the
transponder will automatically calculate and correctly round the A, B, C and D values reported on the VHF link.
4.4.5 Main Menu  Config VHF Radio  Regional Areas
This view shows the regional areas set in the transponder. To make a new regional area or to edit or delete
an existing regional area, press the OPT button and choose the desired action. The following parameters can
be edited when “New Area” or “Edit Area” is chosen:
Parameter Name
Description
Channel A
The channel number for AIS channel A (2087 = default) that
should be used in the regional area.
Channel B
The channel number for AIS channel B (2088 = default) that
should be used in the regional area.
Zone Size
The transitional zone size of the regional area in nautical miles
(NM).
Tx Mode
Decides on which channels the transponder will use when
transmitting in the regional area.
When set to “Silent”, the transponder will stop automatic
transmissions on AIS channels A and B.
Power
Output power for the transponder in the regional area. High
= 12.5 W, Low = 1 W.
LAT NE
The latitude for the North East corner of the regional area
LON NE
The longitude for the North East corner of the regional area
LAT SW
The latitude for the South West corner of the regional area
LON SW
The longitude for the South West corner of the regional area
4.4.6 Main Menu  Config  VHF Radio  LR Broadcast Settings
Parameter Name
Description
LR Broadcast Ch. 1
The first channel number for broadcasting long range
message 27. The message is sent every 6 minutes on each
channel so if both channels are configured a message 27 will
be broadcasted every 3 minutes. If this parameter is set to
zero no long range broadcast transmissions will be sent on
this channel.
LR Broadcast Ch. 2
The second channel number for broadcasting long range
message 27. The message is sent every 6 minutes on each
channel so if both channels are configured a message 27 will
be broadcasted every 3 minutes. If this parameter is set to
zero no long range broadcast transmissions will be sent on
this channel.
4.4.7 Main Menu  Config  Alarm
In this view all alarms can be configured to either “Enabled” or “Disabled”. When the alarm is enabled, an
active alarm will affect the external alarm relay, the buzzer in the NAUTICAST A2 and show a popup dialog in
the display. When the alarm is set to disabled it will not affect anything when the alarm becomes active. For
more information about the alarm view, refer to section 4.18 “Alarms”. For a list of all the alarms that can
occur, refer to section 7.3 “Troubleshooting with Alarm Messages.”
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4.4.8 Main Menu  Config  Password
Parameter Name
Description
New User Password
Changes the user level password for the NAUTICAST A2.
The default user level password is “user”
New Admin Password
Changes the admin level password for the NAUTICAST A2.
The default admin level password is “admin”
Restore Code
It is possible to restore both user password and admin
password to the default values above with a secret restore
code.
To obtain the restore code, contact Nauticast Technical
Support and be prepared to provide the serial number of the
transponder unit.
4.4.9 Main Menu  Config  Long Range
Parameter Name
Description
Reply Mode
When set to “Auto” the NAUTICAST A2 will automatically
respond to any Long Range interrogation messages.
When set to “Manual” the operator is responsible for sending
a response or refusal to any Long Range interrogation
message. This can be done from the Long Range view that is
accessed from Main Menu  Messages  Long Range. For
more information see section 4.14 “Long Range
Interrogations”.
The information that is sent in a response is automatically
filled in by the NAUTICAST A2 depending on the Long Range
filter settings (the parameters below).
Ship ID (A)
Filter setting that defines if a Long Range response message
should include ship name, call sign and IMO number.
Message Date/Time (B)
Filter setting that defines if a Long Range response message
should include information about date and time of message
composition.
Latitude / Longitude (C)
Filter setting that defines if a Long Range response message
should include position.
Course Over Ground (E)
Filter setting that defines if a Long Range response message
should include COG.
Speed Over Ground (F)
Filter setting that defines if a Long Range response message
should include SOG.
Destination And ETA (I)
Filter setting that defines if a Long Range response message
should include destination and ETA.
Draught (O)
Filter setting that defines if a Long Range response message
should include draught.
Ship Type And Cargo (P)
Filter setting that defines if a Long Range response message
should include ship type and cargo information.
Ship Size And Type (U)
Filter setting that defines if a Long Range response message
should include ship’s length, beam and type.
Persons On Board (W)
Filter setting that defines if a Long Range response message
should include number of persons on board.
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4.4.10 Main Menu  Config Display  Visual
It is possible to completely turn off the backlight on LCD, buttons and LED’s. It may then be difficult to read
the NAUTICAST A2 display and find the way to the correct configuration parameter in order to increase the
backlight again. If this should happen, it is possible to hold down the OPT button for 5 seconds to restore the
backlight to 80%.
Parameter Name
Description
Dimming Mode
If set to “Manual”, the LCD backlight, button backlight and
LED brightness are controlled by the user with the parameters
described below.
If set to “Automatic”, the LCD backlight, button backlight and
LED brightness will automatically be controlled with the light
sensor on the front of the NAUTICAST A2. The less ambient
light registered by the light sensor, the lower percentage of
backlight and brightness will be used.
Toggle Day/Night
Toggle between day or night mode. In Day mode the display
background is white and in night mode the background is
black. There are also separate settings for the LCD backlight,
LED intensity and button backlight in the different day/night
modes.
Backlight
Changes the LCD backlight where 0% is completely turned off
and 100 % is maximum brightness.
LED Light Intensity
Changes the light intensity of the three LED’s on the front of
the NAUTICAST A2.
It is possible to turn off the LED’s completely by setting a 0%
light intensity. However, if there is an active, unacknowledged
alarm in the NAUTICAST A2, the light intensity of LED’s will
temporarily be set to 10% until the alarm is acknowledged.
Button Illumination
Changes the brightness of the button backlight on the
NAUTICAST A2.
4.4.11 Main Menu  Config Display  Sound
Parameter Name
Description
Alarm Waiting For ACK
Determines how the NAUTICAST A2 sound buzzer should
behave when an alarm is active and waiting for
acknowledgement. This setting does NOT affect the
behavior of the alarm relay or any external alarm
system.
Long Range Message
Controls the behaviour of the NAUTICAST A2 sound buzzer
when an LR interrogation message is received.
AIS Message
Controls the behaviour of the NAUTICAST A2 sound buzzer
when a SRM or binary text message is received.
Inland RTA
Controls the behaviour of the NAUTICAST A2 sound buzzer
when an Inland RTA (Recommended Time of Arrival) message
is received.
4.4.12 Main Menu  Config Display  Time
Parameter Name
Description
Time Zone
This parameter defines if the times that are displayed in the
NAUTICAST A2 should be in UTC or LOC (local) time. If local
time is chosen, the offset from UTC must be specified with the
three parameters listed below.
Offset sign
The sign of the local time offset from UTC.
Hours
The local time hour offset from UTC.
Minutes
The local time minute offset from UTC.
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4.4.13 Main Menu  Config  Interface  Language
Parameter Name
Description
Language
Changes the language in all the menus and views of the
NAUTICAST A2. The changes will take effect immediately
when pressing “Save”.
4.4.14 Main Menu  Config Interface  Port Rate
Parameter Name
Description
Baud Rate
Changes the baud rate (bits per second) for the corresponding
serial port.
Checksum
When set to “Required”, all messages that are input on the
corresponding serial port to the NAUTICAST A2 must have a
valid checksum.
When set to “Disabled”, messages both with and without
checksum are accepted on the corresponding serial port.
4.4.15 Main Menu  Config Interface  Miscellaneous
Parameter Name
Description
SSD Password
Changes the value of the SSD password level. When set to
“None”, no password is required when configuring the
transponder with an SSD sentence from e.g. an ECDIS via the
serial port interface.
When set to “User”, an SPW sentence with the correct user
level password must be sent before the SSD on the serial port
interface.
Ship Size Mode
This affects how the user should input the ship size, convoy
size and antenna positions. See section 4.4.4 for more details.
AIS GPS Output Port
Defines on which serial port the NAUTICAST A2 should output
data from the internal GPS. When set to “None” no internal
GPS data will be output.
External Switch
This parameter specifies if there is a blue sign switch or silent
switch connected to the orange and brown wires of the
NAUTICAST A2 Power Cable.
If no switch is used, set the parameter to “No Function”.
See sections 3.6.7.1 and 3.6.7.2 for more information about
the blue sign switch and silent switch.
Require Text Msg ACK
This parameter determines if an ACK msg is required as a
response when sending addressed binary text messages to
another target.
Automatic PoB Broadcast
Enable automatic 6 minute periodic broadcast of passenger
information. See section 4.13 for details on message types.
4.4.16 Main Menu  Config  System Settings
Parameter Name
Description
System Mode
Determines if the NAUTICAST A2 should operate as a Class A
transponder or as an Inland transponder. This parameter
affects which config parameters and menus that are visible in
the system.
Range Unit
This parameter determines the unit for the range value of
targets in the Target List, Extended Info view and Plot view.
The range value can be calculated in nautical mile (NM),
kilometre (km) or statute mile (Sm).
Speed Unit
This parameter determines the unit for the SOG value of
targets in Extended Info view and Plot view. The SOG values
can be calculated in knots (kn), kilometres per hour (km/h) or
miles per hour (mph).
Plot Compass
This parameter determines how the plot of AIS targets should
be oriented.
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If set to “North Always Up”, the plot will always have north up
and own ship will rotate according to heading input.
If set to “Own Ship Bow Always Up”, the plot will always have
own ship pointing up and rotate the rest of the plot according
to heading input.
4.4.17 Main Menu  Maintenance  Installation Test
Parameter Name
Description
Sensor Data Source
This parameter specifies which port the NAUTICAST A2 should
use as its external sensor source. The default value of this
parameter is “Automatic” which means that the NAUTICAST
A2 will accept sensor information on any port and use the
information on the port with highest priority.
If Sensor Data Source is set to anything other than
“Automatic”, the NAUTICAST A2 will only accept sensor
information if it comes from the port specified by this
parameter.
The parameter reverts to “Automatic” after a reboot.
SART Test Mode
This parameter determines if SART Test targets should be
displayed in Target List and Plot views of the NAUTICAST A2.
It also controls if connected systems, for example ECDIS, will
receive SART Test targets.
4.5
Alarm and Alert Pop-ups
The NAUTICAST A2 features alarm and alert pop-ups that can appear any time during operation. To
acknowledge an alarm or alert message, press ENTER. An example of an alarm message is shown below.
Figure 10 – New Alarm Message
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4.6
Status Bar
The top of the screen of the NAUTICAST A2 always displays a summary of the system’s status. See illustration
below.
Current time
Current position
Status icons
Current time
synchronization state
Figure 11 – Status Bar
If a valid navigation position is available, it is displayed to the left. The status icons are displayed in the middle
and the current time is shown to the right. Time is either UTC or local (LOC). Beneath the current time there
is also information about the transponder’s synchronization state.
The synchronization state can be:
 UTC Direct – This is the normal state where the NAUTICAST A2 gets the UTC time from its own
internal GPS receiver.
 Indirect Synchronization – The NAUTICAST A2 is synchronizing based on receipt of data from
other AIS transmitters.
NOTE: It is possible to be in Indirect Synchronization but still have a valid position in the upper left corner of
the status bar. The position information may be from an external GPS sensor, but UTC Direct synchronization
can only be taken from the internal GPS receiver.
4.7
Status Icons
The status icons that can be displayed are:
 Unread message (safety related message, text message or RTA)
 Unread Long Range message (automatic reply)
 Unread Long Range message (manual reply)
 Active alarms
 1W mode (Indicates 1 Watt TX mode for Tankers is enabled.) See NOTE below for details.
 Blue Sign On (only available when System Mode is “Inland”)
 Blue Sign Off (only available when System Mode is “Inland”)
 Silent Mode activated, either with Tx Mode parameter or silent switch.

Navigational status, being one of:
 Navigational status is undefined
 At anchor or moored
 Under way using engine
 Navigational status is one of: Not under command, Restricted manoeuvrability, Constrained by her
draught, Aground, Engaged in fishing, Under way sailing, Reserved for future use.
NOTE: The transponder will automatically engage 1W mode when the following conditions are met: Ship type
= Tanker, Nav Status = Moored and SOG <= 3 knots, otherwise 1W mode will be automatically disengaged.
The Tanker 1W mode is fully automatic and cannot be disengaged by other external control.
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4.8
View Remote Ship Information
The NAUTICAST A2 will power up in Target List view. This view, also referred to as the minimal display, is
accessed from the Main Menu view. The Main Menu view can be reached by pressing ESC repeatedly from
any other view. The Target List view displays a list of all targets sorted by range from own ship (closest first).
The list includes MMSI or ship’s name (Ship Id), range (RNG), bearing (BRG) and time since last report was
received (Age) for each AIS target received by the system.
Figure 12 – Target List
The OPT button can be used in the Target List view to send a safety related message (SRM) to the selected
target. For more information about AIS messages, refer to section 4.12.
For extended information about a target in the list, select the ship with the ∧ ∨ key and press ENTER.
The Extended Information view includes static, dynamic and voyage related data for the selected target. In
this view it is also possible to query for static and voyage data as well as persons on board information by
using the OPT button.
Figure 13 – Extended Info
Press ESC to return to Target List view.
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4.9
View Plot of Targets
The location of targets relative to your own ship is visualized in the Plot view. The view is accessed from the
Main Menu view. Use the ARROW KEYPAD < > to select any of the targets on the display or ∧ ∨ to Zoom
In and Zoom Out.
Figure 14 – Target Plot
For extended information about a target select it using the < > key and press ENTER.
The own ship target is displayed as a ‘T’ shaped symbol. Class B targets are indicated by a ‘B’ appended to
the target icon and Inland targets are indicated by either an ‘I’ or by a blue sign symbol appended to the
target (not shown in the figure above).
The OPT button can be used in the Plot view to send a safety related message (SRM) to the selected target.
For more information about AIS messages, refer to section 4.12.
4.10 View Transmitted Own Ship Information
The information transmitted by the NAUTICAST A2 on the VHF link is viewed in the Transmitted Own Ship
Data view. This view is accessed from Main Menu Status view and includes the static, dynamic and voyage
related data actually sent by the NAUTICAST A2. The view reflects the contents of the last transmitted AIS
message, thus there may be some delay from the time the parameters are changed until they are displayed
in the Transmitted Own Ship Data view.
Figure 15 – Transmitted Own Ship Data
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4.11 Enter and Read Voyage Related Information
Voyage related information (for transmit via AIS) is displayed in the AIS Voyage view. The view is accessed
from Main MenuVoyageAIS Voyage. Voyage related data includes destination, estimated time of arrival
(ETA) and number of people aboard.
Figure 16 – AIS Voyage
4.12 Handling Safety Related Messages (SRM) and Text Messages
Safety related messages (SRMs) and text messages can be sent to specific targets (addressed messages) or
broadcast to all targets. The Inbox, Outbox and Send views for SRMs and text messages can be accessed from
Main MenuMessagesAIS Messages.
Figure 17 - AIS Messages
4.12.1 Read Received Messages
Received messages can be accessed in the Inbox view. Unread SRMs and text messages are indicated with a
letter icon in the status bar and are marked with red color in the inbox.
Figure 18 – AIS Message Inbox
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Select a message with ARROW KEYPAD buttons ∧ ∨. A preview of the selected message is shown at the
bottom of the screen. To read the entire message and mark it as being read, press ENTER. When the message
is read, navigate back to the inbox by pressing ESC.
It is possible to reply to, forward or delete the selected message by pressing the OPT button.
4.12.2 Send SRMs and Text Messages
SRMs are composed and sent in the Send view accessed from Main MenuMessagesAIS MessagesSend.
Use the ARROW KEYPAD buttons ∧ ∨ to navigate between the text input field, list of parameters and “Send”
button.
Figure 19 – AIS Message Send view
Sent messages can be viewed in the Outbox view accessed from Main MenuMessagesAIS
MessagesOutbox.
Figure 20 – AIS Message Outbox
4.13 Send Persons On Board
In the Send Persons On Board view it is possible to send information about the number of persons on board
(PoB) to another vessel. The PoB message can be sent as either addressed or broadcast. The PoB message
can also be sent in two different versions:
The IMO version sends the total number of persons on board as a binary message with international FI 16.
The Inland (IWW) version sends a message with number of crew, personnel and passengers as a binary
message with inland FI 55. The information sent in the messages is automatically filled in by the NAUTICAST
A2 depending on the voyage configuration made in Main MenuVoyageAIS Voyage.
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Figure 21 – Persons On Board
4.14 Long Range Interrogations
An AIS transponder can receive long range interrogation messages to poll for certain information. A received
interrogation message is indicated by a LR icon in the status bar. If the “Long Range Reply Mode” parameter
has been configured to “Auto”, the NAUTICAST A2 will automatically send a response to the interrogation. If
the “Long Range Reply Mode” parameter is set to “Manual”, the operator must send a response or refusal
from the Long Range Message view accessed from Main Menu  Messages  Long Range. For more
information about the “Reply Mode” parameter and Long Range filter settings, see section 4.4.9.
Figure 22 – Long Range
To send a reply or refusal to the interrogation or to delete an interrogation from the message list, use the
ARROW KEYPAD buttons ∧ ∨ to mark the desired interrogation and then press the OPT button and choose
the desired option.
The Long Range view uses the following symbols to indicate the status of a request or reply message:
– The information is requested by the sender
– The information is available and provided
– The information requested is refused
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4.15 Inland ETA and RTA
The NAUTICAST A2 has capability to send Inland ETA (Estimated Time of Arrival) messages and receive Inland
RTA (Recommended Time of Arrival) messages which are used when communicating with ports, locks and
bridges on the inland water ways. This is done from the ETA/RTA view that can be accessed from Main Menu
 Messages  ETA/RTA. Sent ETA messages can be viewed in the Outbox view, received RTA messages can
be viewed in the Inbox view and new ETA messages can be composed in the Send view.
Figure 23 – ETA/RTA
4.16 Inland Water Levels
The NAUTICAST A2 can receive and display Inland water levels messages. All received water levels messages
can be viewed in the Water Levels view that can be accessed from Main Menu  Messages  Water Levels.
Figure 24 – Inland Water Levels
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4.17 Regional Areas
All regional areas that are stored in the NAUTICAST A2 can be viewed in the Regional Areas view which is
accessed from Main Menu  Config  VHF Radio  Regional Areas. The list shows the north east and south
west corners of the area. The area is marked with blue color if it is in use by the NAUTICAST A2. To view
more information about the area, edit the area or create a new area, press the OPT button and choose the
desired option.
Figure 25 – Regional Areas
4.18 Alarms
All currently active and enabled alarms are shown in the Alarm view that can be accessed from Main
MenuAlarms. As default, only alarms that are configured as “Enabled” will be shown in the list. It is possible
to also show disabled active alarms by pressing OPT button and choose “Show All Alarms”. For a list of all
alarms, see section 7.3.
Figure 26 - Alarms
4.19 Status List
Current status indications are listed in the Status List view that can be accessed from Main Menu  Status 
Status List. The different status indications that can occur are listed in section 7.8.
Figure 27 - Status List
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4.20 Non Functional Time
This view displays information about times when the NAUTICAST A2 has been turned off or for some other
reason not been transmitting for more than 15 minutes. The view is accessed from Main Menu  Status 
Non Func. Time.
Figure 28 - Non Functional Time
4.21 GPS Status
This view displays the satellites received by the NAUTICAST A2 internal GPS receiver. The list is sorted by the
satellites ID (PRN number) and shows elevation, azimuth and signal to noise ratio (SNR) for each satellite.
The view also displays the total number of satellites in view and the total number of satellites used in the
position calculation reported by GGA sentence.
Figure 29 – GPS Status
4.22 View Raw Data
This view displays the incoming data on the selected serial port. It is also possible to pause the data on the
screen by pressing the “Freeze” button. Use the ARROW KEYPAD buttons ∧ ∨ to navigate to the Freeze
button and press ENTER. The View Raw Data view can be a helpful tool when trouble shooting the system to
see what sensor input is actually received on each port. The view can be accessed from Main Menu Status
View Raw Data.
Figure 30 - View Raw Data
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4.23 SW/HW Info
This view displays the software and hardware revisions for the NAUTICAST A2 and is accessed from Main
Menu  Status  SW/HW Info. NOTE: This information should always be provided when in contact
with Nauticast Technical Support.
Figure 31 - SW/HW Info
4.24 VHF Status
The VHF Status view shows the currently used settings. Channel number, frequency, power and operation
mode are displayed for each VHF transceiver in the NAUTICAST A2. This information is useful when
troubleshooting to make sure that the NAUTICAST A2 transponder uses the expected VHF radio settings. If
e.g. a regional area is set and in use, this will affect the parameters in the VHF Status view.
Figure 32 - VHF Status
4.25 Communication Test
When installing the NAUTICAST A2, or when performing annual testing, a communication test shall be done
to ensure that other transponder system can receive the NAUTICAST A2 transmissions. This can be done from
the Communication Test view accessed from Main Menu  Maintenance  Comm. Test.
When entering the Communication Test view a suggested target with a suitable range (between 15 NM and
25 NM) will be selected in the MMSI parameter field if such a target has been received by the NAUTICAST A2.
It is however possible to select a different target for the communication test. To start the test, use the ARROW
KEYPAD button ∧ to select the “Send” button and press ENTER. The status of the test will be shown beneath
the parameter list. If no response is received within 15 seconds from the selected target a fail message will
be shown.
Figure 33 - Communication Test
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4.26 Update Software
The software in the NAUTICAST A2 is easy upgradable via the USB Host interface located behind the front
hatch. To perform a software update, follow the instructions in the Update Software view which can be
accessed from Main MenuMaintenanceUpdate Software. For more information about the upgrade
procedure, refer to chapter 5 “
Figure 34 - Update Software
4.27 Restore Config
All config parameters described in section 4.4 “Configuration Parameters” can be set to default values from
the Restore Config view which can be accessed from Main Menu  Maintenance  Restore Config.
NOTE: The MMSI parameter will also be reset to zero and therefore the transponder will stop
transmitting and the alarm “Tx Malfunction” will become active.
4.28 Save Configuration to USB memory
The NAUTICAST A2 AIS Transponder System has the capability to save all configuration settings to an USB
memory. The configuration file can be used as backup so that the NAUTICAST A2 AIS system can be restored
to a previous configuration; however during normal software upgrade of the NAUTICAST A2 AIS system the
configuration parameters will NOT be changed so a backup is usually not needed.
The saved configuration file can also be used to load several NAUTICAST A2 systems with the same settings.
To save the configuration to a file on a USB memory, follow the steps below:
1. Insert a FAT32 formatted USB memory in the USB host interface port in the NAUTICAST A2.
2. Enter the Save Config to USB view which is accessed from Main Menu  Maintenance  Save Config
to USB.
Figure 35 – Save Config to USB
3. Open the folder on the USB memory where the transponder configuration file should be saved.
Use the arrow keypad to navigate between folders and files on the USB memory. Only folders and
transponder configuration files will be listed in the view. To view the contents of a sub folder, mark
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the folder and press ENTER. To go back to the previous folder, mark the folder “..” on the top of the
list and press ENTER.
4. Press the “Save” button. A popup will appear where a file name can be entered.
Figure 36 – Enter file name
5. Press OK to save the configuration to the specified file and directory on the USB
Figure 37 – Configuration Saved Successfully.
4.29 Load Configuration from USB memory
To load and directly use a configuration from an existing configuration file on a USB memory, follow the below
steps:
1. Insert the USB memory with the configuration file in the USB host interface port on the NAUTICAST
A2.
2. Enter the Load Config from USB view which is accessed from Main Menu  Maintenance  Load
Config from USB.
Figure 38 – Load Config from USB
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3. Select the desired configuration file.
Use the arrow keypad to navigate between folders and files on the USB memory. Only folders and
transponder configuration files will be listed in the view. To view the contents of a sub folder, mark
the folder and press ENTER. To go back to the previous folder, mark the folder “..” on the top of the
list and press ENTER.
4. Press ENTER to load the selected file. A confirmation popup will appear.
Figure 39 – Confirmation popup
5. Check that the correct configuration file is selected. Press “Yes” in the confirmation popup. A password
popup will appear. Fill in the admin password (default = “admin”) and press OK.
Figure 40 – Password popup
6. The configuration file will be loaded in the NAUTICAST A2 and the settings will take effect immediately.
Figure 41 – Configuration successfully loaded from USB
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5
Software Upgrade
Note: After updating the software add a sticker stating the new software version close to the
product label.
The NAUTICAST A2 is easy upgradable through the USB host interface located behind the front hatch. To
upgrade the software in the NAUTICAST A2, perform the following steps:
 Unzip the NAUTICAST A2 upgrade package in the root folder of an USB memory stick. There should
now be a folder called swload in the USB root folder.
 Insert the USB memory stick in the USB host interface located behind the front hatch.
Hold down the ‘4’-button on the front of the NAUTICAST A2 and reboot the system. The ‘4’-button must be
held down until the STATUS LED is lit green and Rx LED is lit yellow.
The software upgrade is complete when the STATUS LED is lit green. The NAUTICAST A2 will automatically
reboot after 3 seconds. Check that correct SW has been loaded in the SW/HW Info view which can be accessed
through Main Menu  Status SW/HW Info.
If the upgrade process fails, The STATUS LED will be lit red and one of the Rx LED or Tx LED starts blinking.
Should this happen, hold down the ‘4’-button and reboot the NAUTICAST A2 to try again.
The software upgrade can also be initiated from the Update Software view in the NAUTICAST A2. Refer to
section 4.26 “Update Software” for more information.
STATUS
Rx
GREEN
YELLOW
Tx
Upgrade mode started
Upgrade in progress
Blinking YELLOW
Upgrade
complete
reboot after 3 sec)
(automatic
GREEN
Error: USB Not Found
RED
Blinking
0.5Hz
YELLOW
RED
Blinking YELLOW 4Hz
Error: No SW found on USB
Error: Flash erase failed
RED
Blinking
0.5 Hz
RED
RED
Blinking
4 Hz
RED
Error: Flash write failed
Table 11 – LED Indicators during Software Upgrade
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6
6.1
Technical Specifications
Transponder Physical
Dimensions:
Dimensions:
Incl. gimbal mount
Weight:
6.2
Transponder Electrical
Supply Voltage:
Power Consumption (/Max):
Peak Current
6.3
Height: 87 mm
Width: 238 mm
Depth: 173 mm
Height: 124 mm (minimum)
Width: 292 mm
Depth: 173 mm
2.25 kg
2.45 kg incl gimbal mount
24 VDC (12VDC)
17W/24W (48W)
1 A (4A)
Transponder Environment
This product complies with the R&TTE directive, 1999/5/EC
Temperature:
-15˚C to +55˚C (Operational)
-30˚C to +80˚C (Storage)
Vibrations:
IEC 60945 ed. 4
EMC:
IEC 60945 ed. 4
Radio Type Approval:
IEC 61993-2 ed. 2
Compass Safe Distance
60 cm (for standard magnetic compass)
NAUTICAST A2
45 cm (for steering magnetic compass)
Compass Safe Distance
30 cm (for standard magnetic compass)
GPS Antenna AT575-68W
30 cm (for steering magnetic compass)
Compass Safe Distance
65 cm (for standard magnetic compass)
GPS Antenna MA-700
50 cm (for steering magnetic compass)
Compass Safe Distance
65 cm (for standard magnetic compass)
Combined VHF/GPS-1
50 cm (for steering magnetic compass)
6.4
Transponder VHF Transceiver
Receivers:
Transmitter:
Channel bandwidth:
Output Power:
VHF antenna connector:
Antenna Input Impedance:
6.5
Transponder Internal GPS Receiver
Type:
Update rate:
Accuracy:
Antenna feeding:
GPS Antenna connector:
Antenna Input Impedance:
6.6
156 – 163 MHz (TDMA)
156.525 MHz fixed (DSC, Channel 70)
156 – 163 MHz
25 kHz
High:
12,5 W
Low:
1W
“Tanker 1W Mode”:
1W
BNC-Female
50 ohm
GPS L1, C/A Code, 50 Channels
SBAS: WAAS, EGNOS, MSAS, GAGAN
2 Hz
< 2.5 m (GPS, CEP, 50%, 24 hours static)
< 2.0 m (SBAS, CEP, 50% 24 hours static)
5 VDC
TNC-Female
50 ohm
AIS Alarm Relay
Max switching current:
Max switching voltage:
0,1 – 2 A (with heat sink up to 3A)
3 – 60 VDC
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7
Troubleshooting
The Nauticast A2 is a very rugged and stable device, so that in the majority of cases erroneous configurations
rather than real hardware defects are the cause of perceived malfunctioning.
7.1
Troubleshooting Prerequisites
A transponder operating environment may naturally affect and render complicated the search for the root
cause of a system defect. It is always advisable to start by minimizing all possible interference sources in order
to simplify the troubleshooting.
 Disconnect other NMEA equipment from the NAUTICAST A2 (ECDIS, RADAR, NAV, etc.)
 Switch off other emission sources (RADAR, SATCOM, VHF, etc.)
We encourage applying the latest software available for the NAUTICAST A2 if any problems are experienced.
It may contain bug-fixes and other improvements solving already known issues. Check supplied software
release notes to see what has been changed in the new software.
7.2
Troubleshooting with the Front Panel LED’s
It is very fast and effective to use the LED’s to verify the status of the NAUTICAST A2. This should always be
the first step in the troubleshooting.
7.2.1



STATUS LED (multi-colour)
The STATUS LED is constantly lit green when the transponder is operating and no alarms are active.
The STATUS LED is constantly lit red if there is one or more acknowledged active alarms in the
transponder, but no unacknowledged alarms. Refer to section 7.3 for interpretation of the alarms.
The STATUS LED is flashing red if there is one or more unacknowledged alarms in the transponder.
Refer to section 7.3 for interpretation of the alarms.
If neither colours are lit, nor flashing, then check the power supply and make sure that:
 The voltage is correct and stable
 The polarity is correct and not switched
 The available current is sufficient for start up and transmission
 The external fuse is functional
 The power cable is undamaged
 The power connector is properly connected and secured
Also check so that the LED backlight is not completely turned off in the Visual Config view accessed from Main
MenuConfigDisplayVisual.
7.2.2 Rx LED (yellow)
The Rx LED is flashing yellow when the transponder is receiving a message from the VDL. This can be
intermittently.
If there is verified traffic on the VDL and the Rx LED still is dark, then check the alarm list for any active
alarms. Refer to section 7.3 for interpretation of the alarms.
Lack of reception may be an indication of a VHF antenna problem or connectivity issues. Check the installation
for problems.
7.2.3 Tx LED (red)
The Tx LED is flashing red when the transponder is transmitting a message to the VDL. The transmission
interval is between 2 – 360 seconds. Refer to section 7.5.
If the Tx LED is completely dark, then check so that the transmission is not switched off either through an
active regional area or by the Tx Mode parameter. It is possible to check the status on each transceiver in the
VHF Status view described in section 4.24.
If the transmission is activated and there is still no red flashing, then check the alarm list for any active alarms.
Refer to section 7.3 for interpretation of the alarms.
7.3
Troubleshooting with Alarm Messages
The NAUTICAST A2 constantly monitors itself for failures, abnormal conditions and other important
parameters. Some of the monitoring trigger alarms and those alarms are excellent aids in the troubleshooting
process. An active alarm can have two states, unacknowledged or acknowledged. The state of an alarm will
affect the STATUS LED. Refer to section 7.2.1.
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A new alarm (unacknowledged) will raise a pop-up window that needs to be acknowledged by the user. The
active alarms can be found in the alarm view. Refer to section 4.18.
All active alarms are outputted on all the serial interface ports every 30 seconds. The alarm status can for
example be used in interfacing ECDIS systems or centralized alarm systems. The alarms can also be monitored
or recorded for troubleshooting purposes by for example a terminal application.
The status of an alarm can be identified by two letters in the alarm sentence, “A” and “V”. The alarm
sentence is constructed as: $AIALR,hhmmss.ss,xxx,A,A,c-c, where:
hhmmss.ss = Time (UTC) of alarm condition change
xxx = Unique alarm identifier
A = Alarm condition (A = Active, V = Inactive)
A = Alarm’s acknowledge state, A = acknowledged, V = unacknowledged
c-c = Alarm’s description text
$AIALR,hhmmss.ss,xxx,V,A,c-c: Tx malfunction: Alarm is Inactive
$AIALR,hhmmss.ss,xxx,V,V,c-c: Tx malfunction: Alarm is Inactive
$AIALR,hhmmss.ss,xxx,A,A,c-c: Tx malfunction: Alarm is Active and Acknowledged
$AIALR,hhmmss.ss,xxx,A,V,c-c: Tx malfunction: Alarm is Active and Unacknowledged
The alarms that can occur in the NAUTICAST A2 are listed below:
7.3.1 AIS: Tx Malfunction (ID 001)
A Tx Malfunction alarm is generated if there is a malfunction in the radio transmitter hardware or if the antenna
VSWR exceeds an allowed ratio. If the radio transmitter returns to normal operation or if VSWR returns to a
value below the allowed threshold, the alarm is cleared. The Tx Malfunction alarm is also generated when the
MMSI is configured to “0”, in which case the NAUTICAST A2 will not transmit.
7.3.2 AIS: Antenna VSWR Exceeds limit (ID 002)
The VSWR (Voltage Standing Wave Ratio) of the antenna is checked for every transmission and if it exceeds
a given ratio then a VSWR alarm is generated. If the VSWR goes below the allowed threshold, the alarm is
cleared.
7.3.3 AIS: Rx Ch A Malfunction (ID 003)
7.3.4 AIS: Rx Ch B Malfunction (ID 004)
7.3.5 AIS: Rx Ch C Malfunction (ID 005)
The radio receivers are continuously monitored and if any part of the receivers’ hardware should malfunction,
an Rx Malfunction alarm is generated for that receiver. If the radio receiver returns to normal operation, the
alarm is cleared.
7.3.6 AIS: General Failure (ID 006)
This alarm is generated if the NAUTICAST A2 fails to initiate the radio or if a severe hardware failure has
occurred. If this alarm occurs, contact your retailer.
7.3.7 AIS: UTC Sync Invalid (ID 007)
This alarm is generated when the NAUTICAST A2 loses UTC direct synchronization (cannot synchronize from
internal GPS receiver).
7.3.8 AIS: MKD connection lost (ID 008)
This alarm is active if the communication between the control unit and the display unit in the NAUTICAST A2
does not work.
7.3.9 AIS: Internal/External GNSS position mismatch (ID 009)
This alarm is generated if the difference between the internal and external GNSS position is more than 100 m
for more than 15 minutes.
7.3.10 AIS: NavStatus incorrect (ID 010)
This alarm is generated if the navigational status is incorrect. If e.g. the navigational status is set to “At
Anchor” but the ship is moving faster than 3 knots, the NavStatus incorrect alarm will become active.
7.3.11 AIS: Heading sensor offset (ID 011)
This alarm is active when SOG (Speed Over Ground) is greater than 5 kn and the difference between COG
(Course Over Ground) and HDT (True Heading) is greater than 45˚ for 5 min.
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7.3.12 AIS: Active AIS SART (ID 014)
This alarm is generated when the NAUTICAST A2 has received an active AIS SART position report.
7.3.13 AIS: External EPFS Lost (ID 025)
This alarm is generated if the position from the external Electronic Position Fixing System is invalid (i.e. no
external GNSS). Due to the fallback arrangement for the positioning sensor this alarm can be inactive up to
30 seconds (during which the internal GNSS is used) before the alarm is activated.
7.3.14 AIS: No Sensor Position In Use (ID 026)
This alarm is active if the NAUTICAST A2 does not have a valid position (latitude/longitude) from any sensor.
7.3.15 AIS: No Valid SOG Information (ID 029) / No Valid COG Information (ID 030)
These alarms are active if the NAUTICAST A2 does not have a valid SOG (Speed Over Ground) or a valid COG
(Course Over Ground) from any sensor. The SOG and COG is based on the speed log (if external GNSS is used
and a valid heading is available) or the GNSS currently in use.
7.3.16 AIS: Heading Lost/Invalid (ID 032)
This alarm is generated if either the heading information is lost/invalid (from external sensors) or if the heading
is undefined.
7.3.17 AIS: No Valid ROT Information (ID 035)
This alarm is active if ROT (Rate of Turn) is undefined or if no valid ROT information is available from external
sensor or internal calculations.
7.3.18 IAIS: Ship Size mismatch (ID 060)
This alarm is active when the inland parameters length and beam of ship does not match the antenna position
parameters A, B, C and D.
7.3.19 AIS: Tx disabled externally (ID 072)
This alarm is active when an external silent switch is used and the switch has disabled transmissions.
7.4
Troubleshooting via the Display
There is a lot of information and data accessible via the display that can be useful for troubleshooting, and
that can help finding a presumed problem. The following items are just a few examples of what to look at.
7.4.1 Transmitted Own Ship Data View
When the transponder transmits data on the VDL, it also simultaneously outputs this data on all the serial
ports. This information is displayed in the Transmitted Own Ship Data view.
Figure 42 – Transmitted Own Ship Data
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7.4.2 Target List
The target list is primarily useful when analyzing the receiving functionality. The propagation characteristics
of VHF radio frequencies are close to line of sight. A harsh radio environment, reflections in cables, connectors
or the antenna will shorten the effective range.
Figure 43 – Target List
7.4.3 Date and Time
The date and time (UTC) in the upper right corner of the display is provided by the transponder. If the date
and time are not correct, the transponders internal GPS does not have a position fix. This will also be indicated
by the alarm “UTC sync invalid”. This problem is normally caused by a GPS-antenna failure or damaged
antenna cables. This problem may also be caused by interference from radio equipment on-board.
7.4.4 View Raw Data
The View Raw Data view can be used to see received data on the ports of the NAUTICAST A2. It is useful for
troubleshooting to make sure that connected sensors provide correct data to the NAUTICAST A2 unit. The
“View Port” parameter determines from which port the data displayed in the view are taken. It is possible to
pause the view by pressing the “Freeze” button. All data that is received while the view is paused will not be
displayed in the view.
Figure 44 – View Raw Data
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7.4.5 Status List
The status list view is used to display status indications that are stored in the transponder. The indications are
created when an important event has occurred in the transponder. Time of occurrence and status indication
text are shown in the view. A list of all possible indications can be found in section 7.8 Indication Messages.
Figure 45 – Status List
7.5
Reporting Intervals for Class A Transponders
The different information types are valid for different time periods and therefore they need different update
intervals. These update intervals are defined in the AIS standard (ITU-R M.1371) and should be applied by all
transponders. There are however some exceptions from this, which can be found in the standard. Class B
transponders have for example different intervals than the Class A transponder.
All this needs to be taken in consideration while troubleshooting thus it affects the anticipated behaviour of a
transponder.
Information type / Condition
Nominal reporting interval
Static Information
6 min, on amendment, on request
Voyage related information
6 min, on amendment, on request
Dynamic information (See conditions below)
- Ship at anchor or moored and not moving faster than 3 knots 3 minutes
- Ship at anchor or moored and moving faster than 3 knots
10 seconds
- Ship 0-14 knots
10 seconds
- Ship 0-14 knots and changing course
3 1/3 seconds
- Ship 14-23 knots
6 seconds
- Ship 14-23 knots and changing course
2 seconds
- Ship > 23 knots
2 seconds
- Ship > 23 knots and changing course
2 seconds
Table 12 – Reporting Intervals
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7.6
F.A.Q
7.6.1 I cannot see the vessel on the Internet AIS service
Websites providing AIS services like e.g. www.marinetraffic.com does not cover all the seas of the world, but
only specific coastal areas where AIS receivers have been installed and that upload the data to the websites.
The vessel must be in reception range of these AIS receivers to show up on the Internet AIS service. If wrong
information about your ship shows up on these websites (e.g. pictures or wrong position), this doesn’t mean
your AIS is not working correctly. If the data is shown correctly on the AIS, the incorrect information is mostly
due to false information delivered to these websites through other sources.
7.6.2 I can “see” the other vessel, but they do not “see” my vessel
There are several reasons why this might happen. The first thing to check is if the NAUTICAST A2 is
transmitting at all or if is transmitting in low power mode. In VHF Status view described in section 4.24 it is
possible to check the status on all NAUTICAST A2 VHF transceivers. Make sure that correct channels and
power mode are used. There might be a regional area set in the transponder that changes the operating mode
of the NAUTICAST A2. Regional areas are listed in the Regional Area view (see section 4.17).
The MMSI must also be configured in order for the NAUTICAST A2 to transmit. If the MMSI is zero, the
NAUTICAST A2 will be silent.
Another possibility is that the other vessels’ transponder requires a shorter reception range in order to receive
the NAUTICAST A2 transmissions. In the Target List view and the Plot view it is possible to see the range and
bearing to other vessels.
7.6.3 The VHF range seems to be short
As a general rule, the VHF range is equal to line of sight from the antenna position, which means that the
higher the antenna is installed, the longer the range will be. It is also important to follow the guide lines for
an antenna installation thoroughly. Section 3.4 describes how to best install the VHF antenna.
7.6.4 I can only receive a few GPS satellites
The position of the GPS antenna is of high importance to optimize the GPS reception. Follow the guide lines
of GPS antenna installation described in section 3.5.
If the ship is close to a harbour or shore with high structures or travelling in an area with high terrain, the GPS
reception might be lowered. The GPS antenna must be installed where it has a clear view of the sky. The
objective is to see the horizon freely through 360 degrees with a vertical observation of 5 to 90 degrees above
the horizon.
The GPS antenna cable should also be as short as possible and with 50 Ω impedance. A very long antenna
cable or faulty impedance can heavily reduce the GPS reception.
7.7
Contact & Support information
Contact your local dealer for NAUTICAST A2 support. Please visit www.nauticast.com to see our worldwide
service partners.
Nauticast GmbH
Lützowgasse 12-14/ 3. OG
1140 Vienna
Austria
Tel:
+43 (1) 5 237 237-240
Fax:
+43 (1) 5 237 237-150
Mail: support@nauticast.com
Web: www.nauticast.com
To enable us to provide you with precise and thorough support please contact support@nauticast.com per
Email and include the “Technical Support / Problem Report using all relevant information provided by the
SW/HW Info view which can be accessed from Main MenuStatusSW/HW Info.
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7.8
Indication Messages
The indication messages, with identity and type information, are listed below:
ID
Type
Message text
021
Status
External DGNSS in use
022
Status
External GNSS in use
023
Status
Internal DGNSS in use (beacon)
024
Status
Internal DGNSS in use (msg 17)
025
Status
Internal GNSS in use
027
Status
External SOG/COG in use
028
Status
Internal SOG/COG in use
031
Status
Heading valid
033
Status
Rate of Turn Indicator in use
034
Status
Other ROT source in use
036
Event
Channel management parameters changed
056
Event
Channel management zone memory changed
061
Status
Enter semaphore mode
062
Event
Leave semaphore mode
063
Event
NVM Checksum errors
064
Event
RATDMA overflow
066
Status
Tanker Low VHF Power Mode
067
Status
Beacon correction received
068
Status
VDL correction received (id XXXX)
069
Status
No correction received
7.9
Long Range Definitions
A = Ship’s name, call sign, and IMO number
B = Date and time of message composition
C = Position
E = Course over ground (COG)
F = Speed over ground (SOG)
I = Destination and Estimated Time of Arrival (ETA)
O = Draught
P = Ship/Cargo
U = Ship’s length, breadth, type
W= Persons on board
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8
Interpretation of Input Sentences
All interface ports accepts the full set of input listed below sentences, except the sentences listed in section
8.4.1 that are unique to the Long Range interface port.
The protocol of the serial input sentences shall be compliant to IEC 61162-1Ed.4 (2010-11) for maximum
interoperability.
8.1
GPS and Sensor Input Sentences
8.1.1 DTM - Datum Reference
If local code is other than WGS84, then the positions report from that port is discarded.
$--DTM,ccc,a,x.x,a,x.x,a,x.x,ccc
Field
Format
--DTM
ccc
x.x
x.x
x.x
ccc
Name
Sentence Id
Local Datum Code
Local Datum Subdivision Code
Lat Offset (2 fields)
Long Offset (2 fields)
Altitude Offset
Reference Datum Code
Comment
Used
Interpret if it’s WGS84 or not
Ignored
Ignored
Ignored
Ignored
Ignored
Ignored
Ignored
8.1.2 GBS - GNSS Satellite Fault Detection
If this sentence is received once a second from the position source in use, the RAIM flag will be set to TRUE.
$--GBS,hhmmss.ss,x.x,x.x,x.x,xx,x.x,x.x,x.x
Field
Format
--GBS
hhmmss.s
x.x
x.x
x.x
xx
x.x
x.x
x.x
Name
Sentence Id
UTC Time of GGA or GNS
Comment
Used
Ignored
Expected Error in latitude
Expected Error in longitude
Expected error in altitude
ID number of most likely failed satellite
Probability of missed detection
Estimate of bias in meters
Standard Deviation of bias estimate
Used
Used
Ignored
Ignored
Ignored
Ignored
Ignored
8.1.3 GGA - Global Positioning System Fix Data
$--GGA,hhmmss.ss,llll.ll,a,yyyy.yy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx
Field
Format
--GGA
hhmmss.s
llll.ll
yyyy.yy
Name
Sentence Id
UTC of position
Latitude
Comment
Used
UTC Second is used to indicate Time
Stamp
Used
Used
Longitude
GPS quality indicator
10
11
12
13
14
15
xx
x.x
x.x
x.x
x.x
xxxx
Satellites in use
Horizontal dilution of precision
Antenna altitude
Units of antenna altitude, meter
Geodial separation
Units of geodial sep.
Age of differential GPS data
Differential reference station ID
Page 52 of 80
Used,
1 -> Position with Low Accuracy
2 -> Position with High Accuracy
3 -> Position with Low Accuracy
6 -> Dead Reckoning with Low Accuracy
7 -> Manual mode with low accuracy
OTHER -> No Position
Used when the GPS is the internal GPS
(Used in proprietary sentences)
Ignored
Ignored
Ignored
Ignored
Ignored
Ignored
Ignored
Ignored
1001001-2EN A2 Product Manual 2_0
8.1.4 GLL – Geographic position, latitude/longitude
$--GLL,llll.ll,a,yyyy.yy,a,hhmmss.ss,A,a
Field
Name
Sentence Id
Format
--GLL
llll.ll
yyyy.yy
hhmmss.s
Mode indicator
Comment
Used
Used
Latitude
Longitude
Used
UTC of position
Status
UTC Second is used to indicate Time
Stamp
Used
NULL -> Message is ignored
A -> Position with Low Accuracy
D -> Position with High Accuracy
E -> Dead Reckoning Mode with Low
Accuracy
M-> Manual Mode with Low Accuracy
OTHER -> No Position
8.1.5 GNS – GNSS fix data
If the Mode Indicator is a NULL field, the sentence is ignored.
$--GNS,hhmmss.ss,llll.ll,a,yyyy.yy,a,c--c,xx,x.x,x.x,x.x,x.x,x.x
Field
Format
--GLL
hhmmss.s
llll.ll
yyyy.yy
Name
Sentence Id
UTC of position
Latitude
Comment
Used
UTC Second is used to indicate Time
Stamp
Used
Used
Longitude
c--c
Mode indicator
xx
Total number of satellites
10
11
12
13
x.x
x.x
x.x
x.x
x.x
HDOP
Antenna altitude, meter
Geodial separation
Age of differential corrections
Differential reference station ID
A, P -> Position with low accuracy
D, R, F -> Position with high Accuracy
E -> Dead Reckoning Mode with Low
accuracy
M -> Manual Mode with low accuracy
OTHER -> No Position
Used when the GPS source is the internal
GPS (used in proprietary sentences)
Ignored
Ignored
Ignored
Ignored
Ignored
8.1.6 HDT - Heading, True
The use of this sentence is talker identifier dependent.
$--HDT,x.x,T
Field
Format
--HDG
x.x
Name
Sentence Id
Comment
Used
Heading, degrees true
Used
NOTE: HDT input must be sent at least every 3 seconds for the NAUTICAST A2 to calculate ROT
from the HDT input.
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8.1.7 OSD – Own ship data
$--OSD,x.x,A,x.x,a,x.x,a,x.x,x.x,a
Field
10
Format
--OSD
x.x
x.x
x.x
x.x
x.x
Name
Sentence Id
Heading, degrees true
Heading status
Vessel course, degrees true
Course reference
Vessel speed
Speed reference
Vessel set
Vessel drift
Speed units
Comment
Used
Used if heading status is ‘A’
Used
Used as COG
Used1
Used as SOG
Used1
Ignored
Ignored
Used to convert SOG to knots
8.1.8 RMC – Recommended minimum specific GNSS data
$--RMC,hhmmss.ss,A,llll.ll,a,yyyy.yy,a,x.x,x.x,xxxxxx,x.x,a,a
Field
Name
Sentence Id
Format
--RMC
hhmmss.s
llll.ll
yyyy.yy
x.x
x.x
Course over ground, degrees true
10
11
12
xxxxxx
x.x
Date
13
UTC of position
Status
Latitude
Comment
Used
UTC Second is used to indicate Time
Stamp
Used
Used
Longitude
Used
Speed over ground, knots
Used
Used
Magnetic variation
Ignored
Ignored
NULL -> Message is ignored
A -> Position with low accuracy
D -> Position with high accuracy
E -> Dead Reckoning Mode with Low
accuracy
M -> Manual Mode with low accuracy
OTHER -> No Position
Mode indicator
8.1.9 ROT – Rate of turn
The rate of turn value is only used if the talker identifier is TI. Otherwise the value will only be used to
determine the direction, i.e. ”Moving Right” or ”Moving Left”.
$--ROT,x.x,A
Field
Format
--ROT
x.x
Name
Sentence Id
Rate of turn
Status
Comment
Used
Used if Status is set to ‘A’
Used
8.1.10 VBW - Dual Ground / Water Speed
The current position source must be external GPS, and heading must be available for the transponder to accept
this sentence.
$--VBW,x.x,x.x,A,x.x,x.x,A,x.x,A,x.x,A
Field
10
11
Format
--ROT
x.x
x.x
x.x
x.x
x.x
x.x
Name
Sentence Id
Longitudinal water speed
Transverse water speed
Status: water speed
Longitudinal ground speed
Transverse ground speed
Status: ground speed
Stern transverse water speed
Status stern water speed
Stern transverse ground speed
Status stern ground speed
Comment
Used
Ignored
Ignored
Ignored
Used if Status is set to A
Used if Status is set to A
Used
Ignored
Ignored
Ignored
Ignored
1 SOG and COG are used if both COG reference and SOG reference are set to either: B, P, R
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8.1.11 VTG – Course over ground and ground speed
$--VTG,x.x,T,x.x,M,x.x,N,x.x,K,a
Field
10
Format
--VTG
x.x
x.x
x.x
x.x
Name
Sentence Id
Comment
Used
Course over ground, degrees true
Used
Course over ground, degrees magnetic
Ignored
Speed over ground, knots
Used
Speed over ground, km/h
Ignored
Mode indicator
Used
8.1.12 ZDA – Time and date
This message is only interpreted if it’s received from the internal GPS (the time synchronisation source).
$--ZDA,hhmmss.ss,xx,xx,xxxx,xx,xx
Field
8.2
Format
--ZDA
hhmmss.s
xx
xx
xxxx
xx
xx
Name
Sentence Id
Comment
Used
Used
UTC
Day (UTC)
Month (UTC)
Year (UTC)
Local zone hours
Local zone minutes
Used
Used
Used
Ignored
Ignored
Name
Sentence Id
ID of the alarm source
Comment
Used
Used
General Input Sentences
8.2.1 ACK – Acknowledge Alarm
$--ACK,xxx
Field
Format
--ACK
xxx
8.2.2 EPV – Command or report equipment property value
$--EPV,a,c--c,c--c,x.x,c--c,
Field
Format
--EPV
c--c
c--c
x.x
c--c
Name
Sentence Id
Sentence status flag
Destination equipment type
Unique Identifier
Property identifier
Value of property to be set
Comment
Used
Used
Used, AI or STT
Used, may be null
Used
Used
8.2.3 SPW – Security Password Sentence
$--SPW,ccc,c--c,x,c--c
Field
Format
--SPW
ccc
c--c
c--c
Name
Sentence Id
Password protected sentece
Unique Identifier
Password level
Password
Comment
Used
Used
Used, may be NULL
Used
Used
8.2.4 HBT – Heartbeat Supervision Sentence
$--HBT,x.x,A,x
Field
Format
--SPW
x.x
Name
Sentence Id
Configured repeat interval
Equipment status
Sequential sentence identifier
Page 55 of 80
Comment
Used
Used (Limited to 60 sec)
Used
Ignored
1001001-2EN A2 Product Manual 2_0
8.3
AIS Specific Input Sentences
8.3.1 ABM – Addressed Binary and Safety-Related Message
!--ABM,x,x,x,xxxxxxxxx,x,x.x,s--s,x
Field
Format
--ABM
Name
Sentence Id
Total nr of sentences
Sentence number
Sequential message identifier
MMSI of Destination
xxxxxxxx
xx
x.x
s--s
AIS Channel
Message Id
Encapsulated Data
Number of filled bits
Comment
Used
Used if in interval 1..9, otherwise the
sentence is ignored
Used if in interval 1..total sentences,
otherwise the sentence is ignored
Used if in interval 0..3, otherwise the
sentence is ignored
Used
Used
Used if 6 or 12, otherwise the sentence is
ignored
Used
Used
8.3.2 ACA – AIS Regional Channel Assignment Message
The zone created of this sentence must be accepted by the channel management rules (size of zone, distance
to own position, valid channel number etc). If the zone isn’t accepted, the zone will be ignored.
$--ACA,x,llll.ll,a,yyyy.yy,a,llll.ll,a,yyyy.yy,a,x,xxxx,x,xxxx,x,x,x,a,x,
hhmmss.ss
Field
10
11
12
13
14
15
16
17
18
19
20
Format
--ACA
llll.ll
yyyy.yy
llll.ll
yyyy.yy
xxxx
xxxx
hhmmss.s
Name
Sentence Id
Sequence number
NE latitude (2 fields)
Comment
Used
Ignored
Used
NE longitude (2 fields)
Used
SW latitude (2 fields)
Used
SW longitude (2 fields)
Used
Transitional zone size
Channel A
Channel A bandwidth
Channel B
Channel B bandwidth
Tx/Rx mode
Power level
Information source
In use flag
Time of In use change
Used
Used
Used
Used
Used
Used
Used
Ignored
Ignored
Ignored
8.3.3 AIQ – Query Sentence
$--AIQ,ccc
Field
Format
-AIQ
ccc
Name
Comment
Talker ID of requester
Used
Talker ID for device
Used
Approved sentence formatter of data It’s possible to query the following
being requested
sentences:
ACA, ALR, EPV, LRI, SSD, TRL, TXT and
VSD
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8.3.5 AIR – AIS Interrogation Request
This sentence can also be used to do a “UTC Request”.
$--AIR,xxxxxxxxx,x.x,x,x.x,x,xxxxxxxxx,x.x,x,x
Field
10
Format
--AIR
xxxxxxxx
x.x
x.x
xxxxxxxx
x.x
Name
Sentence Id
MMSI 1
Comment
Used
Used
Message
Message
Message
Message
MMSI 2
ID 1.1
sub section
ID 1.2
sub section
Used
Ignored
Used, may be NULL
Ignored
Used, may be NULL
Message ID 2.1
Message sub section
Channel
Used, may be NULL
Ignored
Used, may be NULL
8.3.6 BBM – Broadcast Binary Message
$--BBM,x,x,x,x,x.x,s--s,x
Field
Format
--BBM
x.x
s—s
Name
Sentence Id
Total number of sentences
Sentence number
Sequential message identifier
AIS channel
Message Id
Encapsulated data
Number of filled bits
Comment
Used
Used if in interval 1..9, otherwise rejected
Used if in interval 1..total number of
sentences, otherwise rejected.
Used if in interval 0..9, otherwise rejected
Used
Used if 8 or 14
Used
Used
8.3.7 SSD – Ship Static Data
$--SSD,c--c,c--c,xxx,xxx,xx,xx,c,aa
Field
Format
--SSD
c--c
c--c
xxx
xxx
xx
xx
aa
Name
Sentence Id
Call sign
Name
Pos ref A
Pos ref B
Pos ref C
Pos ref D
DTE
Source identifier
Comment
Used
Used, may be NULL
Used, may be NULL
Used to change position reference for
position source in use. May be NULL.
Used to change position reference for
position source in use. May be NULL.
Used to change position reference for
position source in use. May be NULL.
Used to change position reference for
position source in use. May be NULL.
Ignored
Used
the
the
the
the
8.3.8 VSD – Voyage Static Data
$--VSD,x.x,x.x,x.x,c--c,hhmmss.ss,xx,xx,x.x,x.x
Field
10
Format
--VSD
x.x
x.x
x.x
c--c
hhmmss.s
Xx
Xx
x.x
x.x
Name
Sentence Id
Type of ship and cargo
Maximum present draught
Persons on-board
Destination
Est. UTC of arrival
Comment
Used
Used
Used
Used
Used
Used
Est. day of arrival
Est. month of arrival
Navigational status
Regional application flags
Used
Used
Used
Used
Page 57 of 80
1001001-2EN A2 Product Manual 2_0
8.4
Long Range Input Sentences
8.4.1 On Long Range Port
The LR sentences can only be used with the Long Range interface port.
8.4.1.1 LRF – AIS long-range function
$--LRF,x,xxxxxxxxx,c—c,c—c,c—c
Field
Format
--LRF
xxxxxxxx
c--c
c--c
c--c
Name
Sentence Id
Sequence number
MMSI of requestor
Comment
Used
Used
Used
Name of requestor
Function request
Function reply status
Used
Used
Used
8.4.1.2 LRI – AIS long-range interrogation
$--LRI,x,a,xxxxxxxxx,xxxxxxxxx,llll.ll,a,yyyyy.yy,a,llll.ll,a,yyyyy.yy,a
Field
Format
--LRI
xxxxxxxx
xxxxxxxx
llll.ll
yyyyy.yy
Name
Sentence Id
Sequence number
MMSI of requestor
Comment
Used
Used
Used
MMSI of destination
Latitude
N/S
Longitude
E/W
Used
Used
Used
Used
Used
Name
Sentence Id
Sequence number
MMSI of requestor
Comment
Used
Used
Used
Name of requestor
Function request
Function reply status
Used
Used
Used
8.4.2 On Other Input Ports
LRF – AIS long-range function
$--LRF,x,xxxxxxxxx,c—c,c—c,c—c
Field
8.5
Format
--LRF
xxxxxxxx
c--c
c--c
c--c
Proprietary Input Sentences
All Nauticast Proprietary Sentences will have talker ID PSTT.
8.5.1 Proprietary Query message PSTT,101
$PSTT,101,c--c,
Field
Format
PSTT
101
c--c
Name
Proprietary Nauticast Sentence
Sentence Query
Proprietary sentence to query
Page 58 of 80
Comment
Used
Used
Used
1001001-2EN A2 Product Manual 2_0
9
9.1
Interpretation of Output Sentences
Proprietary Output Sentences (PSTT)
In addition to the standardized IEC sentences, the NAUTICAST A2 is able to output the proprietary sentences
listed below. All Nauticast Proprietary Sentences have talker ID “PSTT”.
9.1.1 $PSTT,10A – UTC Date and Time
This sentence provides UTC Date and Time, i.e. NAUTICAST A2 system time (based on internal GNSS time).
It is output approximately once every 10 seconds (± 1 s).
$PSTT,10A,YYYYMMDD,HHMMSS
Field
Format
10A
YYYYMMDD
HHMMSS
Name
Sentence Id
Date
Comment
10A always
Year, month and day in decimal notation.
(00000000 = Not available)
Hour, minute and second in decimal
notation.
(999999 = Not available)
Time
Example: $PSTT,10A,20121028,135230*
= Date October 28, 2012
= Time 13:52:30 UTC
9.1.2 $PSTT,10C – Data Link Status
This sentence provides information about the traffic on the VHF data link. It is output approximately once
every 60 seconds. Traffic load is calculated over the last frame (i.e. 60 seconds). Number of units is derived
from the internal user list and is generally the number of received units within the last few minutes.
$PSTT,10C,C,LLL,NNNN
Field
Format
10C
LLL
NNNN
Name
Sentence Id
Channel
Traffic Load
Number of Units
Comment
10C always
A = VDL Channel A
B = VDL Channel B
Data link traffic load in precent, 0-100.
Number of units occupying the data link
9.1.3 $PSTT,146 – System Operational Mode Status
This sentence reports the system operational mode. This sentence is output on change, periodically every
minute and on request using PSTT,101.
$PSTT,146,x,x,x*hh
Field
Format
146
Name
Sentence Id
1 W Mode
System Mode
Transmit mode
Comment
146 always
0 = Default
1 = 1 Watt
0 = Class A
1 = Inland
0 = Normal
1 = Silent
9.1.4 $PSTT,1F3 – Transponder Restart
This sentence will be output when the transponder has restarted.
$PSTT,1F3,R
Field
Format
1F3
Name
Sentence Id
Restart Reason
Page 59 of 80
Comment
1F3 always
0 = Unknown
1 = Cold Start
2 = General Protection Fault
3 = Power Fail
4 = Warm Start
1001001-2EN A2 Product Manual 2_0
9.2
9.2.1
Long Range Output Sentences
On Long Range Port
9.2.1.1 LR1 – AIS long-range reply sentence 1
$--LR1,x,xxxxxxxxx,xxxxxxxxx,c—c,c—c,xxxxxxxxx
Field
Format
--LR1
xxxxxxxx
xxxxxxxx
c--c
c--c
xxxxxxxx
Name
Sentence Id
Sequence number
MMSI of responder
Comment
Used
Used
Used
MMSI of requestor (reply destination
Used
Ship’s name
Call sign
IMO Number
Used
Used
Used
9.2.1.2 LR2 – AIS long-range reply sentence 2
$--LR2,x,xxxxxxxxx,xxxxxxxx,hhmmss.ss,llll.ll,a,yyyyy.yy,a,x.x,T,x.x,N
Field
10
11
12
13
Format
--LR2
xxxxxxxx
xxxxxxxx
hhmmss.s
llll.ll
yyyyy.yy
x.x
x.x
Name
Sentence Id
Sequence number
MMSI of responder
Comment
Used
Used
Used
Date
UTC time of position
Used
Used
Latitude
N/S
Longitude
E/W
Course over ground
Validity of COG
Speed over ground
Validity of SOG
Used
Used
Used
Used
Used
Used
Used
Used
9.2.1.3 LR3 – AIS long-range reply sentence 3
$--LR3,x,xxxxxxxxx,c—c,xxxxxx,hhmmss.ss,x.x,x.x,x.x,x.x,x.x,x.x
Output rate: On event
Field
10
11
12
Format
--LR3
xxxxxxxx
c--c
xxxxxxxx
hhmmss.s
x.x
x.x
x.x
x.x
x.x
x.x
Name
Sentence Id
Sequence number
MMSI of responder
Comment
Used
Used
Used
Voyage destination
ETA Date
ETA time
Used
Used
Used
Draught
Ship / Cargo
Ship length
Ship width
Ship type
Persons
Used
Used
Used
Used
Used
Used
Page 60 of 80
1001001-2EN A2 Product Manual 2_0
9.2.1.4 LRF – AIS long-range function
$--LRF,x,xxxxxxxxx,c—c,c—c,c—c
Output rate: On event
Field
9.2.2
Format
--LRF
xxxxxxxx
c--c
c--c
c--c
Name
Sentence Id
Sequence number
MMSI of requestor
Comment
Used
Used
Used
Name of requestor
Function request
Function reply status
Used
Used
Used
On All Other Output Ports
9.2.2.1 LRF – AIS long-range function
$--LRF,x,xxxxxxxxx,c—c,c—c,c—c
Output rate: On event
Field
Format
--LRF
xxxxxxxx
c--c
c--c
c--c
Name
Sentence Id
Sequence number
MMSI of requestor
Comment
Used
Used
Used
Name of requestor
Function request
Function reply status
Used
Used
Used
9.2.2.2 LRI – AIS long-range interrogation
$--LRI,x,a,xxxxxxxxx,xxxxxxxxx,llll.ll,a,yyyyy.yy,a,llll.ll,a,yyyyy.yy,a
Output rate: On event
Field
9.3
Format
--LRI
xxxxxxxx
xxxxxxxx
llll.ll
yyyyy.yy
Name
Sentence Id
Sequence number
MMSI of requestor
Comment
Used
Used
Used
MMSI of destination
Latitude
N/S
Longitude
E/W
Used
Used
Used
Used
Used
AIS Output Sentences
9.3.1 ABK – AIS Addressed and binary broadcast acknowledgement
$ -- ABK,xxxxxxxxx,x,x.x,x,x
Output rate: On event.
Field
Format
--ABK
xxxxxxxxx
x.x
Name
Sentence Id
MMSI of the addressed AIS unit
AIS channel of reception
ITU - R M.1371 Message ID
Message sequence number
Type of acknowledgement
Page 61 of 80
Comment
Used
Used
Used
Used
Used
Used
1001001-2EN A2 Product Manual 2_0
9.3.2 ACA – AIS Regional Channel Assignment Message
$--ACA,x,llll.ll,a,yyyy.yy,a,llll.ll,a,yyyy.yy,a,x,xxxx,x,xxxx,x,x,x,a,x,
hhmmss.ss
Output rate: On event. On request.
Field
10
11
12
13
14
15
16
17
18
19
20
Format
--ACA
llll.ll
yyyy.yy
llll.ll
yyyy.yy
xxxx
xxxx
hhmmss.s
Name
Sentence Id
Sequence number
NE latitude (2 fields)
Comment
Used
Ignored
Used
NE longitude (2 fields)
Used
SW latitude (2 fields)
Used
SW longitude (2 fields)
Used
Transitional zone size
Channel A
Channel A bandwidth
Channel B
Channel B bandwidth
Tx/Rx mode
Power level
Information source
In use flag
Time of In use change
Used
Used
Used
Used
Used
Used
Used
Ignored
Ignored
Ignored
9.3.3 ALR – Set alarm state
$--ALR,hhmmss.ss,xxx,A, A,c--c
Output rate: On event, on request, and automatically. Output every 30s for active alarms and every 60s when
no active alarms.
Field
Format
--ALR
hhmmss.ss
Xxx
c--c
Name
Sentence Id
Time of alarm condition change,
UTC
Unique alarm number (identifier) at
alarm source
Alarm condition
A = threshold exceeded
V = not exceeded
Alarm’s acknowledge state A =
acknowledged
V = unacknowledged
Alarm’s description text
Comment
Used
Used
Used
Used
Used
Used
9.3.4 EPV – Command or report equipment property value
$--EPV,a,c--c,c--c,x.x,c—c
Output rate: On request.
Field
Format
--EPV
c--c
c--c
x.x
c--c
Name
Sentence Id
Sentence status flag
Destination equipment type
Unique Identifier
Property identifier
Value of property
Comment
Used
Used
Used
Used
Used
Used
9.3.5 NAK – Negative acknowledgement
$--NAK,cc,ccc,c--c,x.x,c—c
Output rate: On event
Field
Format
--NAK
cc
ccc
c--c
x.x
c--c
Name
Sentence Id
Talker identifier
Affected sentence formatter
Unique Identifier
Reason
code
for
negative
acknowledgement
Negative acknowledgement’s descriptive
text
Page 62 of 80
Comment
Used
Used
Used
Used
Used
Used
1001001-2EN A2 Product Manual 2_0
9.3.6 SSD – Ship Static Data
$--SSD,c--c,c--c,xxx,xxx,xx,xx,c,aa
Output rate: On request.
Field
Format
--SSD
c--c
c--c
xxx
xxx
xx
xx
aa
Name
Sentence Id
Call sign
Name
Pos ref A
Pos ref B
Pos ref C
Pos ref D
DTE
Source identifier
Comment
Used
Used, may be NULL
Used, may be NULL
Used to change position reference for
position source in use. May be NULL.
Used to change position reference for
position source in use. May be NULL.
Used to change position reference for
position source in use. May be NULL.
Used to change position reference for
position source in use. May be NULL.
Ignored
Ignored
the
the
the
the
9.3.7 TRL – AIS transmitter non functioning log
$--TRL,x.x,x.x,x,xxxxxxxx,hhmmss.ss,xxxxxxxx,hhmmss.ss,x
Output rate: On request. Up to 10 sentences in a burst.
Field
Format
--TRL
x.x
x.x
xxxxxxxx
hhmmss.ss
xxxxxxxx
hhmmss.ss
Name
Sentence Id
Total number of log entries
Log entry number
Sequential message identifier
Switch off date
Switch off UTC time
Switch on date
Switch on UTC time
Reason code1
Comment
Used
Used
Used
Used
Used
Used
Used
Used
Used
9.3.8 TXT – Text transmission
$--TXT,xx,xx,xx,c--c
Output rate: On request, on event.
Field
Format
--TXT
xx
xx
xx
c--c
Name
Sentence Id
Total number of sentences
Sentence number
Text identifier
Text message
Comment
Used
Used
Used
Used
Used
9.3.9 VDM – AIS VHF data-link message
!--VDM,x,x,x,a,s—s,x
Only output on serial port when baudrate is 38400 bps or higher.
Output rate: On VHF message receive event.
Field
Format
--VDM
s—s
Name
Sentence Id
Total number of sentences needed to
transfer the message
Sentence number
Sequential message identifier
AIS channel
Encapsulated ITU-R M.1371 radio
message
Number of fill bits
Page 63 of 80
Comment
Used
Used
Used
Used
Used
Used
Used
1001001-2EN A2 Product Manual 2_0
9.3.10 VDO – AIS VHF data-link own-vessel report
!--VDO,x,x,x,a,s—s,x
Only output on serial port when baudrate is 38400 bps or higher.
Output rate: On VHF transmission event. “Dummy” messages once per second.
Field
Format
--VDO
s—s
Name
Comment
Sentence Id
Used
Total number of sentences needed to Used
transfer the message
Sentence number
Used
Sequential message identifier
Used
AIS channel
Used for transmission event. Not used for
“dummy” position messages.
Encapsulated ITU-R M.1371 radio Used
message
Number of fill bits
Used
9.3.11 VER – Version
$--VER,x,x,aa,c--c,c--c,c--c,c--c,c--c,c--c,x
Output rate: On request.
Field
10
11
Format
--VER
aa
c--c
c--c
c--c
c--c
c--c
c--c
Name
Sentence Id
Total number of sentences
Sentence number
Device Type
Vendor ID
Unique Identifier
Manufacturer serial number
Model code
Software revision
Hardware revision
Sequential message identifier
Comment
Used
Always 1
Always 1
Used
Used
Used
Used
Used
Used
Used
Always NULL
9.3.12 VSD – Voyage Static Data
$--VSD,x.x,x.x,x.x,c--c,hhmmss.ss,xx,xx,x.x,x.x
Output rate: On request.
Field
10
Format
--VSD
x.x
x.x
x.x
c--c
hhmmss.s
Xx
Xx
x.x
x.x
Name
Sentence Id
Type of ship and cargo
Maximum present draught
Persons on-board
Destination
Est. UTC of arrival
Comment
Used
Used
Used
Used
Used
Used
Est. day of arrival
Est. month of arrival
Navigational status
Regional application flags
Used
Used
Used
Used
Page 64 of 80
1001001-2EN A2 Product Manual 2_0
10 Glossary
ACK
Acknowledgement
AFSK
Audio Frequency Shift Keying
AIS
Automatic Identification System
Ant
Antenna
App
Application
ARPA
Automatic Radar Plotting Aid
BRG
Bearing
BS
Base Station
Ch
Channel
COG
Course Over Ground
Comm
Communication
DGNSS
Differential Global Navigational Satellite System
Disp
Display
DTE
Data Terminal Equipment
DSC
Digital Selective Calling
ECDIS
Electronic Chart Display and Information System
EGNOS
European Geostationary Navigation Overlay Service
EPFS
Electronic Position Fixing System
ETA
Estimated Time of Arrival
Ext
External
GALILEO
European GNSS
GLONASS
Russian GNSS
GMSK
Gaussian Minimum Shift Keying
GNSS
Global Navigational Satellite System
GPS
Global Positioning System
HDG
Heading
HDOP
Horizontal Dilution Of Precision
Hecto
Hectometre
H/W
Hardware
IALA
International Association of Lighthouse Authorities
ID
Identifier
IEC
International Electrotechnical Commission
IMO
International Maritime Organization
Int
Internal
ITU
International Telecommunications Union
LAT
Latitude
LED
Light Emitting Diode
LOC
Local
LON
Longitude
LR
Long Range
Msg
Message
MKD
Minimum Keyboard and Display
MSAS
MTSAT Satellite Augmentation System (Japan)
NMEA
National Marine Electronics Association
MMSI
Maritime Mobile Service Identity
N/A
Not available
NE
North East
Page 65 of 80
1001001-2EN A2 Product Manual 2_0
No
Number
NVM
Non-Volatile Memory
PoB
Persons on board
Pos
Position
RAIM
Receiver Autonomous Integrity Monitoring
RNG
Range
RATDMA
Random Access Time Division Multiple Access
ROT
Rate Of Turn
RTA
Recommended Time of Arrival
Rx
Receive
SAR
Search And Rescue
SART
Search And Rescue Transmitter
SBAS
Satellite Based Augmentation System
SNR
Signal to Noise Ratio
SOG
Speed Over Ground
SRM
Safety Related Message
Sync
Synchronization
SW
South West
S/W
Software
TDMA
Time Division Multiple Access
Transp
Transponder
Tx
Transmit
UN
United Nations
UTC
Universal Time Coordinated
VHF
Very High Frequency
Voltage Standing Wave Ratio. (A low value indicates a problem with the antenna or connections/cables to
the antenna.)
Wide Area Augmentation System (United States)
VSWR
WAAS
Page 66 of 80
1001001-2EN A2 Product Manual 2_0
10.1 Inland ERI Ship Types
ERI Ship Type
8000
8010
8020
8021
8022
8023
8030
8040
8050
8060
8070
8080
8090
8100
8110
8120
8130
8140
8150
8160
8161
8162
8163
8170
8180
8210
8220
8230
8240
8250
8260
8270
8280
8290
8310
8320
8330
8340
8350
8360
8370
8380
8390
8400
8410
8420
8430
8440
8441
8442
8443
8444
8450
8460
8470
8480
8490
8500
8510
1500
1510
1520
1530
1540
1850
1900
1910
Description
Vessel Type Unknown
Motor Freighter
Motor Tanker
Motor Tanker Liquid (N)
Motor Tanker Liquid (C)
Motor Tanker Dry Cargo
Container Vessel
Gas Tanker
Motor Freighter Tug
Motor Tanker Tug
Motor Freighter (Ships Alongs.)
Motor Freighter With Tanker
Motor Freighter Push Freighter(s)
Motor Freighter Push Tank-Ship(s)
Tug Freighter
Tug Tanker
Tug Freighter Coupled
Tug Freighter/Tanker Coupled
Freightbarge
Tankbarge
Tankbarge Liquid cargo (N)
Tankbarge Liquid cargo (C)
Tankbarge Dry Cargo
Freightbarge Containers
Tankbarge Gas
Pushtow One Cargo Barge
Pushtow 2 Cargo Barges
Pushtow 3 Cargo Barges
Pushtow 4 Cargo Barges
Pushtow 5 Cargo Barges
Pushtow 6 Cargo Barges
Pushtow 7 Cargo Barges
Pushtow 8 Cargo Barges
Pushtow >=9 Cargo Barges
Pushtow one Tank/Gas barge
Pushtow 2 Barges (>= 1 T/G)
Pushtow 3 Barges (>= 1 T/G)
Pushtow 4 Barges (>= 1 T/G)
Pushtow 5 Barges (>= 1 T/G)
Pushtow 6 Barges (>= 1 T/G)
Pushtow 7 Barges (>= 1 T/G)
Pushtow 8 Barges (>= 1 T/G)
Pushtow >=9 Barges (>= 1 T/G)
Tug Single
Tug One or More Tows
Tug Assisting a Vessel or Linked.
Pushboat Single
Passenger Ship Ferry Cruise
Ferry
Red Cross Ship
Cruise Ship
Passenger Ship No Accomodation
Service Vessel Police etc.
Vessel Maint. Derric etc.
Object Towed
Fishing Boat
Bunkership
Barge Tanker Chemical
Object Not Specified
General Cargo Vessel
Unit Carrier Maritime
Bulk Carrier Maritime
Tanker
Liquified Gas Tanker
Pleasure Craft >= 20m
Fast Ship
Hydrofoil
Page 67 of 80
IMO Ship Type
99
79
89
80
80
89
79
80
79
89
79
89
79
89
79
89
31
31
99
99
90
90
99
89
90
79
79
79
79
79
79
79
79
79
80
80
80
80
80
80
80
80
80
52
31
31
99
69
69
58
69
69
99
33
99
30
99
80
99
79
79
79
80
80
37
49
49
1001001-2EN A2 Product Manual 2_0
10.2 Units
bps
kHz
dB-Hz
NM
km
Sm
kn
km/h
mph
mm-dd hh:mm
h:m:s
Bits per second
Watt
Meter
Kilo Hertz
Decibel-Hertz
Nautical Mile
Kilometer
Statute Mile
Knots
Kilometer per Hour
Miles per Hour
month-day hour:minute
hours:minutes:seconds
Page 68 of 80
1001001-2EN A2 Product Manual 2_0
11 Appendix
11.1 Appendix A – Drawings
11.1.1 Panel Mounting:
Page 69 of 80
1001001-2EN A2 Product Manual 2_0
11.1.2 Gimbal Mount:
Page 70 of 80
1001001-2EN A2 Product Manual 2_0
11.1.3 Upgrade Retrofit Frame
Page 71 of 80
1001001-2EN A2 Product Manual 2_0
11.2 Appendix B – License
The NAUTICAST A2 Transponder System runs on a Linux operating system which is licensed with GNU General
Public License. The source code of the Linux kernel can be obtained by contacting Nauticast GmbH:
Email: support@nauticast.com
Copy of the GNU General Public License:
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA; Everyone is permitted
to copy and distribute verbatim copies of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it
to your programs, too.
When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get
it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you
have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the
original, so that any problems introduced by others will not reflect on the original authors' reputations.
Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program
will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent
must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the
Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion
of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation
in the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running
the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program
(independent of having been made by running the Program). Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a
fee.
2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part
thereof, to be licensed as a whole at no charge to all third parties under the terms of this License.
c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice
that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these
conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not
normally print such an announcement, your work based on the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and
can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or collective works based on the Program.
In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a
volume of a storage or distribution medium does not bring the other work under the scope of this License.
3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms
of Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
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b)
Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of
physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed
under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed
only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in
accord with Subsection b above.)
The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control
compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything
that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating
system on which the executable runs, unless that component itself accompanies the executable.
If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access
to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to
copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise
to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However,
parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties
remain in full compliance.
5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all
its terms and conditions for copying, distributing or modifying the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do
not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other circumstances.
It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such
claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by
public license practices. Many people have made generous contributions to the wide range of software distributed through that system in
reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through
any other system and a licensee cannot impose that choice.
This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original
copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those
countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the
limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new
versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and
"any later version", you have the option of following the terms and conditions either of that version or of any later version published by
the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever
published by the Free Software Foundation.
10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the
author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation;
we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our
free software and of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED
BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE
THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY
AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
NECESSARY SERVICING, REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER
PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED
BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR
OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve
this is to make it free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most
effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to
where the full notice is found.

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Copyright (C)  
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License.
Of course, the commands you use may be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright
disclaimer" for the program, if necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into proprietary programs. If your program is a
subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is
what you want to do, use the GNU Library General Public License instead of this License.
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11.3 Appendix C – Declaration of Conformity
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11.4 Appendix D – Certification
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Page 77 of 80
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Page 78 of 80
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For more information
and the latest updates visit us at
www.nauticast.com
Nauticast GmbH
Lützowgasse 12-14 / 3.OG
1140 Vienna, Austria
T: +43 (1) 5 237 237-0
F: +43 (1) 5 237 237-150
office@nauticast.com

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