NAUTICAST B2 User manual

page 1 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
PRODUCT MANUAL
Nauticast B2
Class-B AIS Transponder
Product No. 1st3001001
1st-Relief GmbH
Handelskai 388 / Top 632
1020 Vienna
Austria
T: [phone]
F: [phone]
[e-mail]

page 2 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
Warning
Although 1st-Relief GmbH strives for accuracy in all its publications; this material may contain errors or
omissions, and is subject to change without prior notice. 1st-Relief GmbH shall not be made liable for any
specific, indirect, incidental or consequential damages as a result of its use. 1st-Relief GmbH components may
only be used in safety of life devices or systems, with the express written approval of 1st-Relief GmbH, as the
failure of such components could cause the failure of the 1st-Relief GmbH device or system. If these fail, it is
reasonable to assume that the safety of the user or other persons may be endangered.
Copying of this document, and giving it to others and the use or communication of the contents thereof, are
forbidden without express authority. Offenders are liable to the payment of damages.
Weitergabe sowie Vervielfältigung dieser Unterlage, Verwertung und Mitteilung ihres Inhaltes sind nicht gestattet,
soweit nicht ausdrücklich zugestanden. Zuwiderhandlungen verpflichten zu Schadenersatz.
Toute communication ou reproduction de ce document, toute exploitation ou communication de son contenu
sont interdites, sauf autorisation expresse. Tout manquement à cette règle est illicite et expose son auteur au
versement de dommages et intérêts.
Sin nuestra expresa autorización, queda terminantemente prohibida la reproducción total o parcial de este
documento, así como su uso indebido y/o su exhibición o comunicación a terceros. De los infractores se exigirá
el correspondiente resarcimiento de 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
position. The accuracy of these networks is variable and is affected by factors such as the antenna positioning,
how many satellites are used to determine a position and how long satellite information has been received for.
It is desirable wherever possible therefore to verify both your vessel’s AIS derived position data and other vessels’
AIS derived position data with visual or radar based observations. The compass safe distance of this unit is 0.5m
or greater for 0.3° deviation. IMPORTANT: 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 current 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. In accordance with a policy of
continual development and product improvement the NAUTICAST B2 hardware and software may be upgraded
from time to time and future versions of the NAUTICAST B2 may therefore not correspond exactly with this
manual. When necessary, upgrades to the product will be accompanied by updates or addendums to this
manual. Please take time to read this manual carefully and to understand its contents fully so that you can install
and operate your AIS system correctly. Information contained in this manual is liable to change without notice.
Please visit our website for the latest manual revision at www.1st-relief.com. 1st-Relief GmbH disclaims any
liability for consequences arising from omissions or inaccuracies in this manual and any other documentation
provided with this product.
LIMITED WARRANTY
This product is warranted against factory defect in material and workmanship for a period of one year from date
of purchase or receipt as a gift. During the warranty period 1st-Relief GmbH will repair or, at its option, replace at
no cost to you for labour, materials or return transportation, provided you obtain a return authorization from 1st-
Relief GmbH, Handelskai 388 / 632, 1020 Vienna, Austria. To obtain a return authorization, call our customer
service department (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 other than the factory. Except
as otherwise expressly stated in the previous paragraph, the company makes no representation or warranty of any
kind, express or implied, as to merchantability, fitness for a particular purpose, or any other matter with respect to
this product. The company shall not be liable for, consequential or special damages.
CAUTION!:
Warranty and certification void if device is opened.
© 2013 1st-Relief GmbH

page 3 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
Index
1WHAT IS AIS? ..................................................................................................................................................... 5
1.1 AIS CLASSES.......................................................................................................................................................... 6
1.2 POSITION INFORMATION SOURCE .............................................................................................................................. 7
2INSTALLATION .................................................................................................................................................... 7
2.1 THE CONTENTS OF THIS BOX ..................................................................................................................................... 7
2.2 SOFTWARE PREREQUISITES....................................................................................................................................... 8
2.3 SOFTWARE INSTALLATION ........................................................................................................................................ 8
2.4 PROGRAMMING..................................................................................................................................................... 8
2.5 HELP.................................................................................................................................................................... 9
2.6 SOFTWARE CONFIGURATION .................................................................................................................................. 10
2.7 HARDWARE INSTALLATION ..................................................................................................................................... 12
2.7.1 Electrical connections.................................................................................................................................. 12
2.7.2 Physical Mounting, Standard Operation Position ....................................................................................... 12
2.8 ANTENNA INSTALLATION........................................................................................................................................ 13
2.8.1 GPS Antenna ............................................................................................................................................... 13
2.8.2 VHF Antenna ............................................................................................................................................... 13
2.9 WARNINGS ......................................................................................................................................................... 13
3USING THE TRANSPONDER................................................................................................................................14
3.1 STATUS LEDS...................................................................................................................................................... 14
3.1.1 Power OK..................................................................................................................................................... 14
3.1.2 TX Timeout .................................................................................................................................................. 14
3.1.3 Error ............................................................................................................................................................ 14
3.1.4 Channel 1 and Channel 2 ............................................................................................................................ 14
3.2 DATA PORT MESSAGES ......................................................................................................................................... 15
3.3 INFORMATION TRANSMITTED AND RECEIVED............................................................................................................. 15
4MAINTENANCE ..................................................................................................................................................15
5ELECTRICAL CONNECTIONS................................................................................................................................15
5.1 POWER .............................................................................................................................................................. 15
5.2 DATA /USB-POWER ............................................................................................................................................ 15
5.3 ADDITIONAL I/O (OPTIONAL CABLE NECESSARY) ......................................................................................................... 16
5.4 VHF DATA LINK MESSAGES (NMEA 0183)............................................................................................................... 16
6STANDARDS ......................................................................................................................................................16
6.1 PRODUCT SPECIFICATION ....................................................................................................................................... 17
6.2 INFORMATION REPORTING INTERVALS...................................................................................................................... 17
7CONTACT & SUPPORT INFORMATION ...............................................................................................................18
8APPENDIX..........................................................................................................................................................19

page 4 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
History of Changes
Software dependencies
This revision of the Manual is valid for the Software version (s) below stated and future
versions unless otherwise noted (ref.: www.1st-relief.com).
Date
Version
Status
Comments
Responsible
2013-07-31
1.14
Release
First Official Release
Ch. Aschl
Date
AIS software Version
Status
Comments
Responsible
2013-06-12
3001010-1-1-1-
D411
Released
A. Lesch
Date
Link2AIS software
Version
Status
Comments
Responsible
2013-06-28
3.0
Released
A. Lesch

page 5 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
1WHAT IS AIS?
AIS stands for Automatic Identification System. AIS increases navigational safety and
collision avoidance by transmitting vessel identification, helping to reduce the difficulty of
identifying ships when not in sight (e.g. at night, in radar blind arcs or shadows or at
distance) by broadcasting navigational intentions to other vessels by providing ID, position,
course, speed and other ship data with all other nearby ships and land based stations.
According to IALA regulations, AIS is defined as follows:
AIS is a broadcast Transponder system, operating in the VHF maritime mobile band. It is
capable of sending ship information such as identification, position course, speed and more,
to other ships and to shore. It can handle multiple reports at rapid update rates and uses
Carrier Sense Time Division Multiple Access (CSTDMA) technology to meet these high
broadcast rates and ensure reliable and robust ship to ship operation.
The IMO defines the performance standards as follows:
Ship to ship working, ship to shore working, including long range application, automatic and
continuous operation, provision of information messaging via PC and utilization of maritime
VHF channels
The Modules:
GPS system, AIS Transponder, VHF Antenna, and the Data Power Cable (appropriate
application software connects the individual modules).
AIS are required to function flawlessly in a variety of modes. The relevant regulations
requirements:
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.
This illustration depicts a typical AIS System, where two or more AIS equipped vessels (and
shore based systems) are automatically communicating with each other.

page 6 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
On the bottom, a typical NAUTICAST B2 installation in a common environment is shown. The
NAUTICAST B2 is connected to the vessels power supply, and in connection with the VHF,
and GPS-Antennas, the minimal requirements for Transponder operation are fulfilled.
Both vessels in the above illustration are equipped with an AIS transceiver. 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 “Carrier Sense Time Division Multiple Access”)
to send and receive messages. Without the necessity of any operating interaction, both
vessels know exactly who or what is cruising nearby and where the individual object is
heading.
The scenario below shows a full AIS coverage area (including all applications and complete
shore infrastructure).
1.1 AIS Classes
There are two classes of AIS units fitted to vessels, Class-A and Class-B. In addition AIS
base stations may be employed by the Coastguard, port authorities and other authorized
bodies. AIS units acting as Aids to Navigation (A to N) can also be fitted to fixed and floating
navigation markers such as channel markers and buoys.
Class-A units are a mandatory fit under the safety of life at sea (SOLAS) convention to
vessels above 300 gross tons or which carry more than 11 passengers in International
waters. Many other commercial vessels and some leisure craft also may be fitted with Class-
A units.
Class-B units are designed for fitting in vessels which do not fall into the mandatory Class-A
fit category.
The 1st-Relief GmbH NAUTICAST B2 is a full compliant Class-B AIS unit.

page 7 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
Information transmitted from vessels that have a Class-A AIS transponder on-board include:
• Name of Vessel
• Destination
• Size of Vessel
• Vessel Dimensions
• Speed (SOG)
• Call Sign
• ETA
• Draft
• Position
• Course (COG)
• Type of Vessel
• Status
• MMSI Number
• Navigational Status
• Heading
• Cargo
• Rate of Turn
• IMO Number
Information transmitted from vessels that have a Class-B AIS transponder on-board
include:
• Name of Vessel
• Vessel Dimensions
• Speed (SOG)
• Type of Vessel
• Position
• Heading
• MMSI Number
• Course (COG)
• Call Sign
1.2 Position Information Source
The marine AIS system uses position information derived from networks such as the Global
Positioning Satellite (GPS) or the Global Navigation Satellite System (GLONASS) in order to
determine the location of the AIS unit and thus the vessel to which it is fitted. The
NAUTICAST B2 utilizes the GPS satellite network.
2Installation
2.1 The contents of this box
Before proceeding with the installation of the Nauticast B2, please check the contents of the
box, which should include:
The Nauticast B2 AIS transponder
Power Cable
USB Cable
Mounting plate
Mounting hardware (4 self tapping screws)
VHF Antenna with connection cable
GPS Antenna with connection cable
Documentation and Software CD containing:
oNauticast B2 Product Manual
oNauticast B2 Protocol Specification
oNauticast B2 Product Sheet
oLink2AIS User Guide
o+ other Documentation and Information Material
Data Cable (optional)
Installation should be completed in 4 separate steps. Complete each step before proceeding
to the next.
Installing the Link2AIS software onto your PC.
Enter your Ships data into the Link2AIS software
(MMSI, Vessel Name, Call sign, Length, Beam etc.)
Program your ship’s data into the AIS hardware.
Installing your AIS hardware to your vessel.

page 8 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
2.2 Software Prerequisites
The Link2AIS-software is designed to operate with Microsoft Windows® operating systems.
The recommended minimum system requirements are:
Microsoft Windows® XP SP2 or above and Microsoft Windows® 7 SP1.
Recommended screen resolution of 1280 x 1024 (although the Link2AIS-software can
operate on screens with smaller resolution, with the use of scroll bars).
One free USB port –minimum USB 2.0.
A pointing device (mouse or equivalent).
An Internet Browser used for the help system.
2.3 Software Installation
The Link2AIS-software is part of the NAUTICAST B2-bundle or may be downloaded from the
webpage of 1st-Relief GmbH. Unzip the package when necessary, locate the file
Setup.exe in the directory Software on the enclosed CD and double click on this file to
start the installation process.
Follow the screen prompts to install the Link2AIS software.
* Refer to Software User Guide for detailed installation instructions.
A Start Menu folder and shortcut on your desktop will be created with the name
'Link2AIS'. This short cut should be used to launch the application as required.
2.4 Programming
NOTE: To program your NAUTICAST B2 you will need to connect the AIS to a personal
computer or Laptop with Link2AIS software installed. There is no external power source
needed when using a USB connection. If you use RS232, 1st-Relief GmbH recommends you
connect the AIS to your boat’s power and connect it to a laptop in order to easily program
your AIS before physically mounting the transceiver.
Connect the NAUTICAST B2 to your laptop using USB.

page 9 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
Start the Link2AIS software program on PC.
The application requires a USB connection to a NAUTICAST B2 transponder. The
connection status is indicated in the lower left corner of the Link2AIS window:
Open the connection settings:
By pressing ‘Scan Ports’ the software checks the available ports for the device
and gives you a suggestion when ready. Select the serial port (port number can be
found in the device manager of the system settings of your Microsoft Windows
operating system) from the menu. Click 'Save' when the right port is selected.
Once a connection is established the application is ready to use. Connection
status is indicated at the bottom left of the application window:
The status light should now turn amber, but still not green, because the MMSI is
not programmed yet.
2.5 Help
There is a context based Help file, which explains what each data entry field means
and what sort of data is expected. The help system is started by pressing the F1 key
on your PC.

page 10 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
2.6 Software Configuration
The functions of Link2AIS are arranged in a series of tabs. Each tab contains
information relating to a particular aspect of the connected AIS transponder.
Depending on the version of Link2AIS installed not all tabs shown below may be
visible.
Open the ‘Identification’ tab. This will display the 'Static Data' for the connected AIS
transponder. This includes the vessel's name, call sign, MMSI number and other fixed
information.
To configure the transponder all of the data fields must be completed and saved to
the AIS.
CAUTION:
For security reasons the MMSI of the vessel cannot be changed once programmed. Do not
program the MMSI unless you are certain you have the correct information. Please check the
number entered carefully. If the MMSI programmed is incorrect the AIS transponder will need
to be returned to the supplier for factory reset.

page 11 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
Enter the vessels information in the appropriate box:
MMSI number - enter the vessel's Maritime Mobile Service Identity number
Call Sign - enter the vessel's radio call sign (7 characters maximum)
Ship's name - enter the name of the vessel (20 characters maximum)
Select the most appropriate vessel type from the drop down menu.
Enter the vessels dimensions as follows rounded to the nearest meter
oDimension A - distance from bow to GPS antenna location to the
nearest meter
oDimension B - distance from the GPS antenna location to the stern to
the nearest meter
oDimension C - distance from the port side to the GPS antenna location
to the nearest meter
oDimension D - distance from the GPS antenna to the starboard side to
the nearest meter
CAUTION:
If no MMSI is entered (MMSI is set to 000000000) then the AIS transponder will operate
in receive only mode and the red LED will remain on. The vessels own position will not
be transmitted. An MMSI must be entered to allow the AIS transponder to transmit its
own position to other vessels.
When you have entered all of the vessel's data click the 'Save to AIS' button to
program this configuration into the AIS transponder:
A warning will be displayed asking you to verify the MMSI number. The MMSI can only
be changed by your dealer once programmed into the transponder. You can change
all data (except the MMSI) at any time, should the need arise. Please check that the
number displayed is correct before proceeding. If the number is incorrect click the
'No' button to cancel programming of the MMSI.
Click the 'Yes' button if the MMSI is correct.
The ‘Identification’ tab will be updated to show the newly programmed vessel
information. The MMSI number will be displayed with a grey background to indicate
that it has been programmed and cannot be changed.
Connection status is indicated at the bottom left of the application window in green:
For additional Software applications unrelated to the installation, please refer to the
Link2AIS manual for technical support.

page 12 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
2.7 Hardware Installation
2.7.1 Electrical connections
Please see the Appendix B of this manual for details of the power, data and RF cables
supplied.
Using the two co-axial leads supplied connect the down-lead from a VHF antenna to the
VHF antenna port and connect the down-lead of a GPS antenna to the GPS antenna port.
Please see Appendix A for a block diagram of the antenna installation.
Connect a 12 VDC or 24 VDC, capable of supplying 2A peak to the DC power lead (red =
positive, black = negative).
2.7.2 Physical Mounting, Standard Operation Position
The unit shall be mounted with the mounting plate on a vertical bulkhead with the cables in
the down position. The mounting location should be protected from the weather (e.g. rain,
snow, ..) and direct water spray. Normally this would be under the helm station or in the
cabin.
It is recommended that the unit is attached to a solid surface with Phillips self tapping head
screws (10-32 x 1,2). Please see Appendix C for the mounting plates exact dimensions.
WARNING:
Only the cables provided with the NAUTICAST B2 unit should be used to connect antennas,
power and display devices so as to maintain the integrity of the enclosure.
WARNING:
Do not connect the NAUTICAST B2 unit to a main (line) AC electrical supply, as it could
cause electric shock or fire. Length of Data/Power Cable connection must not exceed 3
meters.
CAUTION:
Do not connect the NAUTICAST B2 unit to a DC supply exceeding 24 VDC or reverse the
supply polarity, because it may cause damage to the unit. Ensure that the power supply is
limited in accordance with EN 60950-1:2006 and protected with fuse or breakers not
exceeding the specifications listed in this manual.CAUTION: Do not apply excessive force to
connectors during installation!
CAUTION:
The NAUTICAST B2 unit is designed for operation in the temperature range -25 °C to +55 °C.
Do not install (or use) the NAUTICAST B2 unit in environments which exceed this range.
CAUTION:
Do not install the NAUTICAST B2 unit in an environment where there is excessive water
exposure.

page 13 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
2.8 Antenna Installation
2.8.1 GPS Antenna
This is a TNC female bulkhead connector that mounts to the back of the case. This port
provides the 5V DC feed for the active GPS antenna required by the NAUTICAST B2 unit (i.e.
it should incorporate an LNA) and must be suitable for marine shipboard applications (index
of protection, ruggedness, means of mounting, etc.). An antenna should be selected with a
gain (in dB) depending on the length of cable between the antenna and the AIS unit; after
subtraction of cable and connector losses a minimum total gain of 20 dB should be available
at the NAUTICAST B2 unit GPS antenna connector. The GPS antenna to be used for AIS use,
must be a dedicated antenna, i.e. not shared with any other GPS receiver. Installation of the
GPS antenna is critical for the performance of the built in GPS receiver which is used for
timing of the transmitted time slots and for the supply of navigational information should the
main navigational GPS fail.
We strongly recommend that:
The GPS antenna is mounted in an elevated position and free of shadow effect from
the ship’s superstructure.
The GPS antenna has a free view through 360 degrees with a vertical angle of 5 to 90
degrees above the horizon.
As the received GPS signal is very sensitive to noise and interference generated by
other onboard transmitters, ensure that the GNSS antenna is placed as far away as
possible from radar, Inmarsat and Iridium transmitters and that the GPS antenna is
free from direct view of the radar and the Inmarsat beam.
It is also important that the MF/HF and other VHF transmitter antennas are kept as far
away as possible from the GNSS antenna. It is good practice never to install a GNSS
antenna within a radius of 2 meters from these antennas.
2.8.2 VHF Antenna
This is a UHF female bulkhead connector that mounts to the back of the case.
The VHF antenna employed for AIS use:
Must be a dedicated antenna, i.e. not shared with any other VHF transmitter/receiver.
Must be suitable for marine shipboard applications (index of protection, ruggedness,
means of mounting, etc.).
Should be omni-directional and vertically polarized with unity gain (0 dB) with a
bandwidth sufficient to maintain VSWR <1.5 over the frequency range 156 –163 MHz.
As a minimum the 3dB bandwidth must cover the two AIS channels and the DSC
Channel.
Should be mounted with at least a two meter vertical separation distance from any
other VHF antenna used for speech or DCS communication but see also the section
“Radio Frequency Exposure Warning” below.
2.9 Warnings
Connecting a badly mismatched VHF antenna, leaving the VHF antenna port disconnected,
or shorting the VHF antenna port will activate the VSWR alarm, cause the unit to stop
sending position reports or cause damage to the transponder and activating the red LED.
To meet the requirements for Radio Frequency Exposure it is necessary to install the VHF
antenna correctly and operate the AIS equipment according to the instructions.
The GPS, VHF, power and data cables need to be secured to the bulkhead within 6” to 12”
from the connectors.

page 14 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
3Using the transponder
3.1 Status LEDs
3.1.1 Power OK
A green LED illuminates to show that the unit is connected to an external power source
and is operating.
3.1.2 TX Timeout
An amber LED illuminates if the unit has failed to transmit a position report during the
last two reporting intervals.
Examples:
•Message 23 “quiet period”
•A high VDL load
•Positional information unavailable
•Transmissions disable
•Unit has not been configured
3.1.3 Error
An amber LED illuminates if the unit has failed its inbuilt integrity test.
The unit is equipped with built in integrity tests (BIIT) that simultaneously operate with
the standard AIS functions.
The BIIT provide the following test functions:
•Receiver monitoring of background noise level –indicates if background noise level
exceeds -77dBm
•GPS antenna connection –indicates if open or short circuit
•GPS module –indicates if module has failed
3.1.4 Channel 1 and Channel 2
Two tri-colour LEDs indicate the status of channel 1 and channel 2 as follows:
•Green indicates that the channel has received an AIS message
•Amber (red and green) indicates the channel is transmitting
•Red indicates the channel is in DSC mode

page 15 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
3.2 Data Port Messages
The data port will output the following:
Details of relevant AIS transmissions received
Details of AIS transmissions sent
Details of channel management messages received
Alarm messages generated by the BIIT function
The data port will accept the following inputs:
Programming information
Alarm acknowledgements
An AIS unit in operation:
uses one of two VHF channels within the international marine band allocation
(channel 87B; 161.975MHz, or channel 88B; 162.025MHz) to regularly transmit
information such as the vessel position, Maritime Mobile Service Identity (MMSI),
name, speed, course, etc.
receives similar information from other AIS equipped vessels within VHF range and
outputs that information for use by an external display medium (AIS enabled chart
plotter, PC using AIS enabled chart plotter software etc.)
3.3 Information Transmitted And Received
A Class-A unit will transmit its IMO number (if known), MMSI, Call sign and Name, length and
beam, ship type, time, course over ground (COG), speed over ground (SOG), heading,
navigational status, rate of turn, draught, cargo type, destination and safety related
messages via a short message service (SMS) facility. Message lengths are variable with
static and voyage related information being transmitted less often.
A Class-B unit will transmit its MMSI, Call Sign and Name, length and beam, ship type, time,
course over ground (COG), speed over ground (SOG) and heading.
4Maintenance
WARNING: Unauthorized opening of the NAUTICAST B2 system will invalidate the warranty.
CAUTION: Avoid using chemical solvents to clean the NAUTICAST B2 as some solvents
can damage the case material. To clean, wipe down with a damp cloth.
NOTE: The NAUTICAST B2 contains no user serviceable parts. Contact your Service
Agent for repair for replacing the fuse fails to make the equipment serviceable.
5Electrical Connections
5.1 Power
There is a standard DC female connector mounted on the unit, where power can be provided
using the power cable. Please make sure the voltage of your power source is 12 VDC or
24VDC before connecting to the unit.
5.2 Data / USB-Power
There is a standard USB-B Socket on the unit, fitting to the cable shipped with the AIS to
connect the unit to a PC. This enables you to program your device by using the Link2AIS
software, you are also able to see the device status including the information the device
sends or transmits.
NOTE: The NAUTICAST B2 is a “RECEIVE ONLY device”once it is powered with the
USB from a connected PC only!

page 16 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
5.3 Additional I/O (optional cable necessary)
We offer you an optional data cable, which allows you to use a RS232 and RS422 data port
as well as various Status Outputs. If you want to use a ‘Silent Mode Switch’ this cable is
necessary. The cable needs to be connected to the 15 pin D-SUB socket on the device,
enabling you to connect data plotters or similar navigational equipment. The data is sent
using NMEA 0183 sentences. See APPENDIX B for further information.
5.4 VHF data link messages (NMEA 0183)
This sentence is used to transfer the receipt of a VHF Data Link (VDL) message on either AIS
radio channel, as defined in ITU-R M.1371, using the “Six-bit” field type. The structure
provides the transfer of long binary messages by using multiple sentences. Data messages
should be transmitted in as few sentences as possible. When a data message can be
accommodated in a single sentence, then it shall not be split.
For more information about the used interface protocol refer to the latest “PROTOCOL
SPECIFICATION” of the Nauticast B2 or contact our Technical Support Team (see Section:
Contact & Support information).
6Standards
This product complies with all the necessary standards under the European R&TTE directive
for Article 3.1(a), 3.1(b), 3.2 and 3.3(e). The following standards have been implemented in
pursuance of this:
IEC 62287-1: 2006-03 Maritime navigation and radio communication equipment and
systems –Class-B ship borne equipment of the automatic identification system (AIS)
–Part 1: Carrier-sense time division multiple access (CSTDMA) techniques
IEC 60945: 2002-08 Maritime navigation and radio communication equipment and
systems –General requirements –Methods of testing and required test results
IEC 61162-1: Maritime navigation and radio communication equipment and systems –
Digital interfaces –Part 1: Single talker and multiple listeners
IEC 61108-1: GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) –Part 1: Global
positioning system (GPS) -Receiver equipment - Performance standards, methods of
testing and required test results
EN 301 843-1 v2.1: Electromagnetic compatibility and Radio spectrum Matters (ERM);
Electromagnetic Compatibility (EMC) standard for marine radio equipment and
services; Part 1: Common technical requirements
EN 50383: 2002 Basic standard for calculation and measurement of electromagnetic
field strength and SAR related to human exposure from radio base stations and fixed
terminal stations for wireless telecommunications system (110MHz –40GHz)
EN 60950-1:2006 Information technology equipment –Safety –Part 1: General
requirements

page 17 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
6.1 Product Specification
Product Number:
1st3001001
Model Number:
NAUTICAST B2
Size:
195x145x35mm
Power:
12 VDC or 24VDC
0,3A Average power consumption, 2A Peak
Electrical Interfaces:
USB, RS232, RS422
VHF receivers:
2 AIS receivers (shared between AIS and DSC)
1 DSC receiver (shared between AIS and DSC)
Frequency 156–162MHz
Sensitivity -107dBm
for 20% BER
VHF transmitter:
1 Transmitter
Output PWR 2W nominal
Frequency 161–162MHz
Internal GPS Receiver:
48 channel
1 Hz Update rate
5V DC Antenna feed
IEC61108-1 compliant
5 LED Lamps
PWR
Green
In Operation
TX
Amber
Transmit Timeout
ERR
Amber
Rx noise level >77dBm
GPS Ant. connection failure
GPS module failure
CH1 Tricolour
Green - Receive AIS data
Amber - Transmit AIS data
Red - DSC data mode
CH2 Tricolour
Green - Receive AIS data
Amber - Transmit AIS data
Red - DSC data mode
Environmental Class
“Protected” according to IEC 60945-Ed.4
Compass Safe Distance
0,55m
6.2 Information Reporting Intervals
The Nauticast Class-B AIS will transmit position reports (Message 18) in reporting intervals
of
Every 30 seconds if SOG is > 2 kn;
Every 3 Minutes if SOG is < 2 kn
Provided that the transmission time periods are available. A command received by Message
23 shall override the reporting interval.
Static Data sub messages 24A and 24B will be transmitted every 6 minutes in addition to and
independent of the position report.

page 18 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
7Contact & Support information
Although 1st-Relief GmbH strives for accuracy in all its publications; this material may
contain errors or omissions, and is subject to change without prior notice. 1st-Relief GmbH
shall not be made liable for any specific, indirect, incidental or consequential damages as a
result of its use. 1st-Relief GmbH components may only be used in safety of life devices or
systems, with the express written approval of 1st-Relief GmbH, as the failure of such
components could cause the failure of the 1st-Relief GmbH device or system. If these fail, it
is reasonable to assume that the safety of the user or other persons may be endangered.
Contact your local dealer for NAUTICAST B2 support. Please see our 1st-Relief GmbH
Website for Dealer / Service Listing.
1st-Relief GmbH
Handelskai 388 / Top 632
1020 Vienna
Austria
Tel: [phone]
Fax: [phone]
Mail: Technical.Suppor[email protected]
Web: www.1st-Relief.com

page 19 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
8Appendix
APPENDIX A
System Block Diagram
Power supply, PC, NMEA compatible devices not included
Data Cable optional
(Mount unit with cable side down)

page 20 of 26 1st3001001 EN 1_14.docx
1st-Relief GmbH
Bank: UniCredit Bank Austria AG
FN: 206478w, HG Wien
Handelskai 388 / Top 632
Swift/BIC: BKAUATWW
VAT No.: ATU 51115305
1020 Vienna, Austria, Europe
IBAN: AT24 1100 0085 7396 5400
Tax No. 014/3645
www.1st-Relief.com
EORI: ATEOS1000001609
DATA CABLE
APPENDIX B
Class-B
POWER CABLE
Description
Wire Type
Color
AWG
10VDC-32VDC+
Copper
RED
24
GND -
Copper
BLACK
24
Class-B
Description
DB15
Wire Type
Color
AWG
CABLE #
RS422 TX A
15
Copper
YELLOW
24
CABLE 1
RS422 TX B
5
Copper
GREEN
24
CABLE 1
RS422 RX A
4
Copper
WHITE
24
CABLE 1
RS422 RX B
10
Copper
GREY
24
CABLE 1
RS232 TX
9
Copper
GREEN
24
CABLE 2
RS232 RX
13
Copper
WHITE
24
CABLE 2
GND
2
Copper
BROWN
24
CABLE 2
GND
7
Copper
BROWN
24
CABLE 3
TX OFF (silent mode)
6
Copper
GREEN
24
CABLE 3
ALARM OUT
11
Copper
YELLOW
24
CABLE 3
+
14
Copper
GREY
24
CABLE 3
CH2 LED RED
3
Copper
BROWN
24
CABLE 4
TX TIMEOUT LED
8
Copper
WHITE
24
CABLE 4
ERROR LED
12
Copper
YELLOW
24
CABLE 4
CH1 LED RED
1
Copper
GREEN
24
CABLE 4
+
14
Copper
GREY
24
CABLE 4