Kongsberg Seatex AS AIS300 Automatic Identification System User Manual

Kongsberg Seatex AS Automatic Identification System

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Kongsberg AIS 300
Automatic Identification
System
Pr
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Instruction manual
A300-02/2.0
June 2016 - preliminary
©
Kongsberg Seatex AS
Document history
Document number: A300-02 / Revision 2.0
Rev. 2.0 June 2016
Preliminary second version — awaiting FCC approval.
Copyright
©Kongsberg Seatex AS
All rights reserved. No part of this work covered by the copyright hereon may be reproduced or otherwise
copied without prior permission from Kongsberg Seatex AS.
Note
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The information contained in this document remains the sole property of Kongsberg Seatex AS. No part of
this document may be copied or reproduced in any form or by any means, and the information contained
within it is not to be communicated to a third party, without the prior written consent of Kongsberg
Seatex AS.
Kongsberg Seatex AS endeavours to ensure that all information in this document is correct and fairly
stated, but does not accept liability for any errors or omissions.
Warning
Comments
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The equipment to which this manual applies must only be used for the purpose for which it was
designed. Improper use or maintenance may cause damage to the equipment and/or injury to personnel.
The user must be familiar with the contents of the appropriate manuals before attempting to operate
or work on the equipment.
Kongsberg Seatex disclaims any responsibility for damage or injury caused by improper installation,
use or maintenance of the equipment.
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To assist us in making improvements to the product and to this manual, we welcome comments and
constructive criticism.
e-mail: km.seatex@km.kongsberg.com
Kongsberg Seatex AS
www.kongsberg.com
Instruction manual
Table of contents
Glossary ..................................................................................................................7
INTRODUCTION............................................................... 9
About the manual ...................................................................................................9
Notations used in this manual.................................................................................9
Product restrictions .................................................................................................9
1.3.1
1.3.2
1.4
1.5
Restrictions in guarantee ............................................................................ 9
Restrictions in use.................................................................................... 10
Radio frequency license .......................................................................................10
FCC statements.....................................................................................................10
1.5.1
1.5.2
FCC general statement ............................................................................. 10
FCC part 15 statement.............................................................................. 10
1.1
1.2
1.3
Note on RF radiation exposure limits and AIS equipment................................... 11
Disposal ................................................................................................................ 11
Equipment handling..............................................................................................12
Support information..............................................................................................12
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
PRODUCT DESCRIPTION................................................ 13
Software and hardware versions...........................................................................13
Wheelmarking ......................................................................................................13
Purpose and applications ......................................................................................13
System components ..............................................................................................14
AIS Unit................................................................................................................14
GNSS antenna description....................................................................................15
VHF antenna description ......................................................................................16
AIS system............................................................................................................16
GNSS systems ......................................................................................................17
2.9.1
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1.6
1.7
1.8
1.9
GPS - Global Positioning System.............................................................. 18
2.10
2.11
IALA DGPS description.......................................................................................19
VHF in AIS systems.............................................................................................19
3.1
TECHNICAL SPECIFICATIONS ........................................ 21
Performance data ..................................................................................................21
3.1.1
3.2
Physical dimensions .............................................................................................21
3.2.1
3.2.2
3.2.3
3.3
AIS 300 system........................................................................................ 21
AIS Unit.................................................................................................. 21
GNSS antenna ......................................................................................... 21
VHF antenna ........................................................................................... 22
Power ....................................................................................................................22
3.3.1
3.3.2
A300-02/2.0
AIS Unit.................................................................................................. 22
GNSS antenna ......................................................................................... 22
Kongsberg AIS 300
Environmental specifications................................................................................22
3.4.1
3.4.2
3.4.3
External interfaces ................................................................................................23
3.5.1
Product safety .......................................................................................................24
3.6.1
Radio frequencies .................................................................................................24
3.7.1
3.7.2
3.7.3
3.7.4
Data outputs..........................................................................................................24
3.8
GNSS antenna ......................................................................................... 24
GNSS receiver......................................................................................... 24
VHF antenna ........................................................................................... 24
VHF receiver ........................................................................................... 24
3.8.1
3.9
3.10
AIS Unit.................................................................................................. 24
Data inputs............................................................................................................25
Interfaces AIS Unit...............................................................................................25
3.10.1
3.10.2
3.11
3.12
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Antenna location for AIS systems ............................................................. 31
GNSS antenna ......................................................................................... 32
VHF antenna ........................................................................................... 35
AIS Unit.................................................................................................. 35
Installing the AIS Unit .........................................................................................35
4.2.1
4.3
BIIT........................................................................................................ 29
Alarms .................................................................................................... 29
SNMP ..................................................................................................... 30
INSTALLATION .............................................................. 31
Location of system parts.......................................................................................31
4.1.1
4.1.2
4.1.3
4.1.4
4.2
Serial ports .............................................................................................. 26
Ethernet connection.................................................................................. 27
LED indicators AIS Unit ......................................................................................27
Internal alarm system ...........................................................................................29
3.12.1
3.12.2
3.12.3
4.1
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3.7
AIS Unit.................................................................................................. 24
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3.6
AIS Unit.................................................................................................. 23
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3.5
AIS Unit.................................................................................................. 22
GNSS antenna ......................................................................................... 23
VHF antenna ........................................................................................... 23
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3.4
Installing the pilot plug............................................................................. 36
Antenna and cable installation..............................................................................36
4.3.1
4.3.2
GNSS antenna and cable installation ......................................................... 36
VHF antenna and cable installation ........................................................... 37
4.4
Electrical installation ............................................................................................38
5.1
CONFIGURATION........................................................... 40
Configuration methods .........................................................................................40
5.1.1
5.1.2
5.2
Configuration with NMEA sentences ........................................................ 40
Configuration via WEB interface .............................................................. 41
Message types.......................................................................................................45
A300-02/2.0
Instruction manual
5.2.1
5.3
VDL messages......................................................................................... 45
NMEA sentences ..................................................................................................46
5.3.1
5.3.2
PI sentences............................................................................................. 46
Sensor sentences ...................................................................................... 50
5.4
Differential corrections.........................................................................................51
6.1
6.2
GETTING STARTED ........................................................ 52
How to turn on the AIS Unit ................................................................................52
AIS Unit settings ..................................................................................................52
6.2.1
6.2.2
6.2.3
Network settings ...................................................................................... 52
Static parameters...................................................................................... 53
Radio — VHF channels and power ........................................................... 54
Status information ................................................................................................54
7.1
MAINTENANCE .............................................................. 56
Periodic maintenance............................................................................................56
Software updates ..................................................................................................56
Repairs and modifications ....................................................................................57
7.4
Exchange of antenna cable........................................................................ 57
Exchange of antenna ................................................................................ 58
Repair of AIS Unit ................................................................................... 58
Installation of spare AIS Unit.................................................................... 60
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7.3.1
7.3.2
7.3.3
7.3.4
Troubleshooting....................................................................................................61
7.4.1
7.4.2
7.4.3
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7.3
Software update routine............................................................................ 57
in
7.2.1
System status ........................................................................................... 61
No power ................................................................................................ 61
External output problems.......................................................................... 61
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7.2
Antenna care ........................................................................................... 56
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7.1.1
6.3
8.1
8.2
8.3
8.4
MECHANICAL DRAWINGS .............................................. 63
AIS Unit dimensions ............................................................................................64
Bracket with strain relief dimensions ...................................................................65
Wall mounting bracket dimensions ......................................................................66
DIN rail mounting ................................................................................................67
9.1
9.2
PARTS LIST ................................................................... 68
Standard components............................................................................................68
System accessories ...............................................................................................68
10
REFERENCES.................................................................. 70
EU DECLARATION OF CONFORMITY ............................... 71
DECLARATION OF CONFORMITY .................................... 74
COAX CONNECTOR INSTALLATION ................................ 75
½" COAX CABLE SPECIFICATIONS ................................ 80
A300-02/2.0
Kongsberg AIS 300
RG–214 SPECIFICATIONS ............................................. 81
F.1
F.2
ANTENNA SPECIFICATIONS........................................... 83
GNSS antenna mechanical dimensions and installation ......................................84
VHF antenna mechanical drawing and installation..............................................86
LIGHTNING ARRESTOR SPECIFICATIONS ...................... 88
PRODUCTION TEST ........................................................ 90
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A300-02/2.0
Instruction manual
Glossary
Abbreviations
Automatic Identification System
BIIT
Built-in integrity test
CTS
Clear to send
DGPS
Differential GPS
ECDIS
Electronic chart display and information system
ECS
Electronic chart system
EGNOS
European Geostationary Navigation Overlay System
EMC
Electromagnetic compatibility
GPS
Global positioning system
IALA
International Association of Lighthouse Authorities
IEC
International electrotechnical committee
IMO
International Maritime Organization
LED
Light emitting diode
LGND
Logic ground
LNA
Low noise signal amplifier
MIB
Management information base
NMEA
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NDS
Minimum keyboard display
Not detected serial port
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MKD
AIS
National marine electronics association. NMEA 0183 (reference
IEC 61162) is a standard for interchange of information between
navigation equipment.
PGND
Power ground
PI
Presentation interface
PPS
Pulse per second
PRN
Pseudorandom noise
PSS
Physical shore station
QA
Quality assurance
RTS
Request to send
RTCM
Radio Technical Commission of Maritime Services
SA
Selective availability
SBAS
Satellite Based Augmentation System
SNMP
Simple network management protocol
A300-02/2.0
Kongsberg AIS 300
Signal/noise ratio
SOTDMA
Self Organised TDMA
SPS
Standard positioning service
SW
Software
TDMA
Time Division Multiple Access
UI
User interface
UTM
Universal transverse mercator
VDL
VHF data link
VHF
Very high frequency
WAAS
Wide area augmentation system
WEEE
Waste Electrical and Electronic Equipment
WGS84
World Geodetic System of 1984
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SNR
A300-02/2.0
Introduction
1 Introduction
1.1
About the manual
Notations used in this manual
in
1.2
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This instruction manual is intended as a reference manual for the personnel installing,
configuring and operating the system and it contains the necessary information in order
to install, configure and operate the AIS 300 Mobile Station.
The following notations are used in this manual:
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Bold text is used for all menu names. A series of menu selections is indicated by File→
New
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Italics is used for manual names and for information that needs your attention.
Caution
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A note is used to draw attention to special features or behaviour of the equipment.
Caution is used to make the user aware of procedures and operational
practice which, if not followed, may result in degraded performance or
damage to the equipment.
1.3
Product restrictions
1.3.1
Restrictions in guarantee
Changes or modifications to the product not explicitly approved by Kongsberg Seatex
AS will void the guarantee.
A300-02/2.0
Kongsberg AIS 300
The liability of Kongsberg Seatex AS is limited to repair of this system only under the
given terms and conditions stated in the sales documents. Consequential damages such
as customer's loss of profit or damage to other systems traceable back to this system's
malfunctions, are excluded. The warranty does not cover malfunctions of the system
resulting from the following conditions:
• Incorrect power connection.
• Short-circuiting of GNSS antenna cable during operation of the system(s).
1.3.2
Restrictions in use
Radio frequency license
in
1.4
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The AIS is a communication system that relies on VHF and GPS. The antennas shall
be connected according to the instructions. Without proper VHF antenna and antenna
cable, the sensitivity and hence the range, will be degraded. The GNSS receiver requires
free sight from the antenna to the sky, minimum four visible satellites and otherwise
normal conditions to operate.
1.5
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This product contains a radio-transmitting device and a national license for the use of
frequencies is required for operation. Use in national waters will require a frequency
license issued by the relevant national authorities. The owner and user of the equipment
are responsible for obtaining such a license prior to switching the product ON. It may be
required to switch the product OFF when the product is brought close to shore (closer
than 12 NM).
FCC statements
The Federal Communications Commission (FCC) is an independent agency of the
United States government and regulates interstate and international communications by
radio, television, wire, satellite and cable.
1.5.1
FCC general statement
Excerpt from FCC Rules, §15.21.
Changes or modifications to the equipment not expressly approved by the party
responsible for compliance could void the user’s authority to operate the equipment.
1.5.2
FCC part 15 statement
Excerpt from FCC Rules.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
10
A300-02/2.0
Introduction
this device may not cause harmful interference, and
this device must accept any interference received, including interference that may
cause undesired operations.
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
marine and/or commercial environment. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. The equipment is not
intended for operation in a residential area. Operation in such an area is likely to cause
harmful interference in which case the user will be required to correct the interference
at his own expense.
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1.6 Note on RF radiation exposure limits
and AIS equipment
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The international regulations related to radiation exposure are mainly aimed at setting
levels for portable devices (and base station sites for mobile networks). Portable devices
intended to be used very close to the human body (within 0.5 m or less), can have RF
power levels in the range up to 10 W.
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The Kongsberg Seatex AS AIS equipment uses VHF transmission (156 to 164 MHz
band), and is intended for permanent installation on ships (above a certain size). The
antenna is mounted high up in a mast. This is considered a controlled environment. RF
power fed to the antenna is maximum 12 W (the transmission is not continuous). Any
human will be in the far field (> 10 m) from the AIS VHF antenna and is not likely to be
exposed to hazardous RF fields originating from this antenna.
1.7
Disposal
All electrical and electronic components have to be disposed
of separately from the municipal waste stream via designated
collection facilities appointed by the government or local
authorities. The correct disposal and separate collection
of your old appliance will help prevent potential negative
consequences for the environment and human health. It is
a precondition for reuse and recycling of used electrical and
electronic equipment. For more detailed information about
disposal of your old appliance, please contact your local
authorities or waste disposal service.
The equipment may be returned to Kongsberg Seatex AS if
there is no local WEEE collection. The equipment is marked with this pictogram.
A300-02/2.0
11
Kongsberg AIS 300
1.8
Equipment handling
Observe the following when handling the equipment:
• All units must be handled with care.
• The case containing the unit must be kept dry at all times and must be sheltered
from the weather.
• It must not be subjected to shocks, excessive vibration or other rough handling.
• The equipment must be preserved and stored in such a way that it does not constitute
any danger to health, environment or personal injury.
• The unit must, whenever possible, be stored and transported in its original
transportation box.
• The transportation box must not be used for any purpose for which it was not intended.
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• The storage area's mean temperature must not be lower than – 20 ºC and not warmer
than + 70 ºC.
Support information
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1.9
in
• Once unpacked, the equipment must be kept in a dry, non-condensing atmosphere,
free from corrosive agents and isolated from sources of vibration.
• Company name: Kongsberg Seatex AS
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• Address: Havnegata 9, 7010 Trondheim, Norway
• Switchboard: +47 73 54 55 00
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• Telefax: +47 73 51 50 20
• Duty phone: +47 33 03 24 07 (24 hours)
• E-mail address: km.support.seatex@km.kongsberg.com
• Website: http://www.km.kongsberg.com/seatex
12
A300-02/2.0
Product description
2 Product description
Software and hardware versions
Software version, 1.00.xx
in
System delivered with
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2.1
This chapter describes the AIS Mobile Station system and gives an overview of AIS and
GPS related information.
Revision table
Software version
Hardware version
2.2
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Date
Hardware version, 1
Wheelmarking
This product is wheelmarked. The wheelmark with
serial number is located on the label on the side and
the rear of the AIS Unit.
2.3
Purpose and applications
Kongsberg Seatex AS provides, via its AIS 300 mobile station, a technical solution that
enables the identification of other vessels, navigations aids fitted with VHF based AIS
technology and virtual AIS AtoN. It is designed to be a “black box” for integration
towards other navigation equipment such as ECDIS/ECS and radar. AIS 300 has an
outstanding receiver sensitivity which gives a larger range compared to units with the
required sensitivity of -107 dBm.
A300-02/2.0
13
Kongsberg AIS 300
2.4
System components
This system will normally comprise the following main components, which are
physically separated:
• AIS Unit
• GNSS antenna
• VHF antenna
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In addition, the following items are needed:
• Antenna cable for GNSS antenna and VHF antenna
• Power cable (two cords)
• Serial connection towards external sensors (if any) such as heading device, GNSS
receiver etc.
2.5
AIS Unit
The unit is a stand-alone mount and comprises the following main parts:
• AIS module
• GPS receiver
• Power supply
• Interface module
14
A300-02/2.0
Product description
VHF, GPS connectors, LAN, USB and power are located on one side and the serial
connections are located on the other side.
2.6
GNSS antenna description
The GPS 4 antenna is an active receiving antenna for the 1575 MHz NAVSTAR
GPS satellite navigation system.
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The GNSS antenna has a right-hand circular polarisation (RHCP) and a built-in
high gain, low noise amplifier. It has a full hemispherical coverage due to
quadrifilar helix antenna element.
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It is delivered with an installation kit with U-bolts. The connector is FME-female
(pin) (N-female pigtail when delivered by Kongsberg Seatex AS).
A300-02/2.0
GNSS antenna
Extension pipe
Mounting bracket
U-bolts
Interconnection cables
15
Kongsberg AIS 300
2.7
VHF antenna description
AV7 is a high quality dipole antenna designed for the marine VHF radio telephone
service. It is a high quality antenna with a durable construction. It has a vertical
polarization and omni-directional radiation pattern.
AIS system
in
2.8
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U-bolts in stainless steel are included.
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In accordance with IMO requirements all SOLAS ships in international traffic above
300GT shall carry an AIS mobile station. A major task for competent authorities such
as coastal and harbour authorities, police, customs, military, search and rescue centres
and other, is to monitor ship traffic within their territorial waters. Through an AIS
infrastructure system, the governmental organisations will have the full traffic overview
of all SOLAS ships, as well as AIS Class B within the AIS base station coverage area.
The AIS system provides an efficient tool to increase the situation awareness, the
efficiency of operations and safety. Experience shows that the workload for the operators
involved in vessel tracking and monitoring, is heavily decreased.
The implementation plan for SOLAS vessels started in 2002 and was finalised in 2004.
A Class A AIS mobile station consists of a GPS receiver and VHF radio modules.
The AIS mobile station uses GPS satellites to determine vessel position. The position
data should, however, come from the ship’s primary navigation system. If this is not
available, the position will be provided from the internal GPS receiver. The internal GPS
receiver is also used for time-synchronisation of received and transmitted data.
VHF communication is used for broadcast and reception of vessel position data,
navigational data, static and voyage related information with other vessels and base
stations.
For an AIS Class A mobile station serial line communication and the NMEA data
protocol are used to exchange AIS data with other navigation systems. AIS data are
displayed on the MKD unit or external systems such as ECDIS/ECS or radar.
16
A300-02/2.0
Product description
The Self-Organised Time
Division Multiple Access protocol
(SOTDMA) organises access for all
users by operating with time-frames
divided into single slots. AIS is
based on SOTDMA communication
on two frequencies (161.975 MHz
and 162.025 MHz). Vessels will
first listen in order to establish the
slot table and then start sending
in a vacant slot. When in normal
operation, each station sends in
a previously announced or randomly chosen slot. Future transmission slots will be
allocated and communicated to surrounding AIS mobile stations. Hence a self-organised
communication avoids transmission in same slots.
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The system is designed to give preference to close targets. Targets far away will drop
out first in the event of overload.
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The length of a timeslot within the SOTDMA telegram is 26.6 milliseconds. There
are maximum 2250 slots per minute on each AIS frequency, in total 4500 slots. One
navigation message from a ship occupies one slot.
Ship’s dynamic conditions
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The transmission rate of a position message (msg 1-3) depends on the speed and turn-rate
of a vessel. Static information (msg 5) is sent every 6 minutes.
Reporting interval
3 minutes
Ship at anchor or moored and moving
faster than 3 knots
10 seconds
Ship 0 to 14 knots
10 seconds
Ship 0 to 14 knots and changing course
3.3 seconds
Ship 14 to 23 knots
6 seconds
Ship 14 to 23 knots and changing course
2 seconds
Ship > 23 knots
2 seconds
Ship > 23 knots and changing course
2 seconds
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Ship at anchor or moored and not moving
faster than 3 knots
2.9
GNSS systems
GNSS (Global Navigation Satellite System) is a generic term for satellite navigation
systems providing autonomous geo-spatial positioning with global coverage. GPS is the
only GNSS with full constellation. However, GLONASS is operable but do not have full
constellation. Galileo is a third GNSS, which is in the development phase.
A300-02/2.0
17
Kongsberg AIS 300
2.9.1
GPS - Global Positioning System
The Global Positioning System (GPS) is a satellite-based navigation system made up of
a network of satellites placed into orbit by the U.S. Department of Defence. GPS was
originally intended for military applications but in the 1980es the government made the
system available for civilian use.
GPS provides a highly accurate and continuous navigation service. It provides 24-hour,
all weather and global coverage.
The system is divided into the following three segments:
This segment consists of at least 24 satellites (21 active plus
3 operating spares) in 12-hour circular orbits. At an altitude
of 20200 km, each satellite is transmitting orbital and clock
parameters.
Control segment
This segment comprises Ground Control Stations
geographically spread for monitoring, up-loading and control
of the satellite transmitted characteristics.
User segment
This segment comprises GPS receivers installed on board
ships, aircraft etc. to track satellite signals and transform them
into position, velocity and time.
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Space segment
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Each GPS satellite transmits radio signals at two microwave frequencies in the L band,
1575.43 MHz (L1) and 1227.6 MHz (L2).
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The L1 signal is modulated by a precise (P) code for Precise Positioning Service (PPS)
and a course/acquisition (C/A) code for Standard Positioning Service (SPS). The P
code is for military and authorised personnel only and is encrypted before broadcast to
GPS users. The C/A code is for civil users. Until 1 May 2000 the accuracy of the C/A
code was degraded to 100 m (2DRMS) horizontal positioning by the use of Selective
Availability (SA). However, SA is now switched off and the position accuracy of the
system is about 16 metres 95% CEP.
The fundamental technique for GPS is one-way ranging from the satellites. Triangulation,
based on ranging from the satellites, is the basis of the system. In order to triangulate,
the GPS measures distance using the travel time of a radio message. To measure travel
time, timing is crucial. GPS therefore needs very accurate clocks. The transmission is
referred to highly accurate atomic frequency standards on board the satellites, which are
in synchronisation with the GPS system time base.
The time difference from when the signal leaves the satellites until it is received at the
GPS receiver, is measured. The distance is computed by multiplying with the speed of
light. Once the distance to a satellite is known, the satellite's position in space must be
found. The GPS satellites are launched into very precise orbits and their position is
transmitted to the user. Knowing the satellites' position and the distance to the user
receiver, the user position can be computed. Three perfect measurements can solve a
three-dimensional point in space.
18
A300-02/2.0
Product description
However, the crystal clocks in the GPS receivers are drifting, and the position is therefore
inaccurate. To calculate a three dimensional position, four unknowns have to be solved
(latitude, longitude, height and receiver clock offset). To solve this equation with four
unknowns it is necessary with range measurements from four or more satellites.
The geometry, and hence the accuracy of the position calculation, varies with the number
of satellites available and their location.
Using differential corrections from one or more GPS Reference Stations significantly
reduces all major error sources. This principle is called differential GPS (DGPS).
2.10
IALA DGPS description
2.11
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An IALA DGNSS reference station generates differential GNSS corrections. Raw
pseudo-range observations and other pertinent data from the inbuilt GNSS receiver are
used to calculate corrections. The generated RTCM messages are sent via the MSK
modulator to a DGNSS Reference Station Transmitter which amplifies the signal and
broadcasts the corrections in the MF frequency range to mariners. On board the vessel
these corrections are used in the DGPS receiver where the GPS position is corrected
accordingly.
VHF in AIS systems
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Transmission in the AIS system is based on VHF (Very High Frequency). AIS mobile
stations (on board vessels), AIS AtoNs, AIS Base Stations and other AIS devices are
transmitting on two standardised AIS channels; Channel A (161.975 MHz) and Channel
B (162.025 MHz). Two power levels are used on the vessels; low (1 W) and high
(12.5 W).
The range, distance between transmitting unit and receiving unit, is mainly depending
on antenna height and the antenna installation. Use of for example combiners will
introduce a loss and hence reduce the range. It is important to install the antenna as
high as possible. Theoretical range can be estimated based on the following formula,
which is a line of sight estimation:
D (km) =
12, 75xH (m)
D = Distance (range) in kilometers. H = antenna height in metres.
Note that both the transmitter and receiver side (see figure) need to be considered. This
is an estimation of line of sight, and is very conservative for VHF range calculations.
In order to give a better estimate of VHF range under normal metrological conditions
10 % should be added to the line of sight distance. Special metrological conditions
may affect the radio range considerably.
A300-02/2.0
19
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Kongsberg AIS 300
20
A300-02/2.0
Technical specifications
3 Technical specifications
Performance data
3.1.1
AIS 300 system
3.1
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AIS module
Better than -107 dBm
in
Sensitivity
Physical dimensions
3.2.1
AIS Unit
54.73 mm (including mounting bracket)
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Height
132.55 mm
Width
260 mm (including connector)
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Length
Weight
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3.2
Mounting brackets
3.2.2
1.3 kg (without mounting brackets)
Standard: 122.5 mm x 389.5 mm (with strain relief)
Optional: 122.5 mm x 272 mm (wall mount)
Optional: DIN rail bracket
GNSS antenna
Type
Procom GPS 4
Height
230 mm
Diameter
33 mm
Weight
0.15 kg
Colour
White
Connector type
FME male with pigtail to N-female
A300-02/2.0
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Kongsberg AIS 300
The GNSS antenna has a right-hand circular polarisation (RHCP) and a built-in high
gain, low noise amplifier. It has a full hemispherical coverage due to quadrifilar helix
antenna element. It is delivered with an installation kit with U-bolts.
3.2.3
VHF antenna
Type
Comrod AV7
Height
1250 mm
Diameter
25 mm
Weight
1 kg
Connector type
N-female
3.3.1
AIS Unit
Input voltage
+24 V DC nominal (operational range 12 to 32 V DC)
Max. 30 W
Voltage
GNSS antenna
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Type
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Power consumption
3.3.2
in
Power
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3.3
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AV7 is a high quality dipole antenna designed for the marine VHF radio telephone
service. It is a high quality antenna with a durable construction. It has a vertical
polarization and omni-directional radiation pattern. U-bolts in stainless steel are included.
Procom GPS 4
5 V DC from main unit
3.4
Environmental specifications
3.4.1
AIS Unit
Enclosure material
Aluminium
Operating temperature range
-15 °C to +55 °C
Recommended operating
temperature
Room temperature (+20 °C)
Storage temperature range
-20 °C to +70 °C
Operating humidity
Max. 95 % non-condensing
22
A300-02/2.0
Technical specifications
Storage humidity
Less than 55 %
Ingress protection front
IP 42
Ingress protection rear
IP 21
Electromagnetic compatibility IEC 60945/EN 60945
(immunity/emission)
Vibration
3.4.2
IEC 60945/EN 60945
GNSS antenna
Procom GPS 4
Operating temperature range
-50 °C to +70 °C
Relative humidity
Hermetically sealed (100 %)
Enclosure material
Weather-resistant low-loss plastic
VHF antenna
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3.4.3
Type
Comrod AV7
Enclosure material
Fibreglass
Operating temperature range
-55 °C to +71 °C
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55 m/s
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Wind rating
in
Type
External interfaces
3.5.1
AIS Unit
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3.5
Serial ports
5 RS-422 (I/O), 2 RS-422 (I), 2 RS-232 (service,
spare)
Baud rate
Up to 115 200 bytes/sec
LAN
1 Ethernet port
USB
1 in front
ALR
Open/closed (normally closed)
Blue sign
Switch
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Kongsberg AIS 300
3.6
Product safety
3.6.1
AIS Unit
IEC 60950-1/EN 60950-1
3.7
Radio frequencies
3.7.1
GNSS antenna
Procom GPS 4
L1
1575 MHz
Gain (in axial direction)
32 dBi
GNSS receiver
in
3.7.2
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Type
u-Blox
GPS L1
1575.42 MHz
VHF antenna
Type
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Comrod AV7
Frequency
VSWR < 1.5:1, 156 to 162 MHz
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Gain
3.7.4
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Type
3.7.3
Electrical safety (LVD)[1]
VSWR < 2:1, 145 to 165 MHz
2 dBi
VHF receiver
Type
Kongsberg Seatex AIS module
Frequency
156 to 162.0375 MHz
3.8
Data outputs
3.8.1
AIS Unit
Message format
1.
24
NMEA 0183 v. 3.0, and some proprietary messages
This equipment is intended for professional use only.
A300-02/2.0
Technical specifications
3.9
Data inputs
NMEA sentences
3.10
PI, Pilot, RTCM, LR, Sensor 1, Sensor 2, Sensor 3
according to IEC 61993–2.
Interfaces AIS Unit
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in
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The antenna connections, power, Ethernet and USB interface is located on one side of
the AIS mobile station.
Type
Connected to
VHF
N-connector female
VHF antenna
GPS
TNC connector 50 Ohm female
GPS antenna
LAN
USB
2–pin Phoenix screw terminals
Power input, 1 = -(N), 2 = +(P)
RJ-45 10/100 Mbit/s autosense
Switch /router/equipment
USB
USB stick for SW update
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PWR
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Connector
The serial, alarm relay and Blue sign interfaces are located on the opposite side. P1 and
P2 constitute five 5–pin RS–422 I/O ports, two 3–pin RS–422 I ports, two 3–pin RS–232
ports, one 2–pin Alarm Relay and one 2–pin Blue sign port.
A300-02/2.0
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Kongsberg AIS 300
Connector
Type
Connected to
P1
2*10 pin Phoenix screw terminals
PI, Pilot, RTCM, LR
P2
2*10 pin Phoenix screw terminals
Sensor 1, Sensor 2, Alarm, Sensor 3, Blue
sign, Service, Spare
3.10.1
Serial ports
The AIS mobile station has seven RS–422 and two RS–232 ports. In addition an alarm
relay and a blue sign port for inland water way use.
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The below table shows the pinning for the different connections available on P1 and P2
seen from the front. Each of P1 and P2 consists of two 10–pin connectors numbered
from left to right. The configuration can be completed in the WEB interface.
Note
The two RS–232 ports have a common ground through pin 8 on the lower connector
on P2.
Note
For RS–422 ports, RX/TX- correspond to signal line RX/TX A and RX/TX+ correspond
to RX/TX B.
Baud rates are as follows:
Serial port
Default baud rate
Range
PI
38400
4800 to 115200
Pilot
38400
4800 to 115200
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A300-02/2.0
Technical specifications
Serial port
Default baud rate
Range
RTCM
9600
4800 to 115200
LR
38400
4800 to 115200
Sensor 1
4800
4800 to 115200
Sensor 2
4800
4800 to 115200
Sensor 3
4800
4800 to 115200
Service
115200
NA
Spare
3.10.1.1
Termination
Output drive capability
ar
3.10.1.2
The serial interfaces use 1 k Ohm termination. The AIS Unit serial data receiver draws
less than 2 mA at 2 V.
Output (talker)
in
Up to 10 listeners (RX) may be connected to each AIS Unit talker line (TX-RS 422
dataport).
im
Input (listener)
Caution
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The AIS Unit listener circuit will not draw more than 2 mA from the line at a 2 V
voltage level.
3.10.2
LAN AIS
Pr
Do not connect two talker lines together.
Ethernet connection
This is the LAN port where AIS PI data are received from the AIS Unit and the port to
use when configuring the system via WEB interface. Capacity is 100 Mbps.
3.11
LED indicators AIS Unit
At the top of the unit there are four LED indicators which indicate various situations
depending on the state of the unit. Seen from right to left: ALR, GPS, RX and TX.
During startup the LEDs have these functions:
• The LED to the left (TX) turns red after
power-on.
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Kongsberg AIS 300
• The led to the right (ALR) is first unlit and
then starts to flash yellow when the AIS Unit
software is running.
• The LED to the right (ALR) continues to flash
yellow until the AIS Unit is ready to send.
During normal operation the LEDs have these functions.
• The TX LED has these functions:
– TX transmitting on Channel A, the LED
to the left flashes green.
– TX transmitting on Channel B, the LED
to the left flashes yellow.
• The RX LED has these functions:
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in
– TX is off, the LED to the left is constantly
red.
– TX transmitting on Channel C, the LED
to the left flashes red.
im
– RX receiving on Channel A, the second
LED to the left flashes green.
– RX receiving on Channel B, the second
LED to the left flashes yellow.
Pr
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– RX receiving on Channel C, the second
LED to the left flashes red.
• The GPS LED has these functions:
– When the AIS Unit is tracking satellites,
the second LED to the right flashes green.
– When the AIS Unit receives GPS data
but no position or time, the second LED to
the right flashes yellow.
• The Alarm LED has this function:
– When there is an alarm situation, the LED
to the right is constantly red. Otherwise
it is not lit.
28
A300-02/2.0
Technical specifications
3.12
Internal alarm system
3.12.1
BIIT
The AIS module has a built-in alarm functionality. The alarm is generated by the Built
In Integrity Test (BIIT).
The software handles generated alarms. The alarm may lead to some kind of actions
taken by the system. This depends on what kind of alarm that arises. The alarm
generated by the BIIT may lead to stop in transmission of messages. When an alarm
arises, this will be identified by a red alarm LED. There will also be generated an alarm
message on the PI port.
Alarms
3.12.2
ar
The following alarms can be sent from the AIS Unit on PI. Response to an alarm is
listed in the right column.
Response
Explanation
Tx malfunction
If the AIS300 detects that it is unable
to maintain radio frequencies during
transmission or that it fails to shut
down TX after ramp down.
Shutdown of
transmitter
Antenna VSWR
exceeds limit
Antenna/cable error or disconnected.
Typically water penetration in antenna
or cable.
Continue operation
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Internal error in AIS; Lost
communication with FPGA.
Continue operation
One or more of the internal SDR
processes have stopped responding.
Shutdown of
transmitter
No internal GPS, due to antenna/cable
error/disconnected or GPS receiver
error.
Continue operation
Pr
General failure
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RX malfunction (Ch
A/B/70)
in
Alarm
UTC clock lost
MKD connection lost No MKD connected.
Continue operation
Internal/External
GNSS position
mismatch
Large position mismatch (100 m),
Continue operation
taken GPS antenna positions into
account, between internal and external
GPS receiver which is present for more
than 15 minutes.
NavStatus incorrect
Mismatch between speed and entered
nav status.
Continue operation
Heading sensor offset Sustained difference between COG and Continue operation
heading of 45 degrees or more for at
least 5 minutes.
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Kongsberg AIS 300
Alarm
Explanation
Response
Active SART
Active SART message has been
received.
Continue operation
External EPFS lost
No input from external position source. Continue operation
Continue operation
No valid SOG
information
No valid input of, or internal SOG.
Continue operation
No valid COG
information
No valid input of, or internal COG.
Continue operation
Heading lost/invalid
No input of heading.
Continue operation
No valid ROT
information
No input of Rate Of Turn
indicator/sensor.
Continue operation
ar
3.12.3
No sensor position in No valid external nor valid internal
use
position provided.
SNMP
Pr
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in
Simple Network Management Protocol (SNMP) is an "Internet-standard protocol for
managing devices on IP networks". A SNMP agent is installed on the AIS module in the
AIS Unit trapping the BIIT alarms of the system. The Management Information Base
(MIB) can be downloaded from FTP server on request.
30
A300-02/2.0
Installation
4 Installation
This chapter covers installation of the AIS Unit, the GNSS antenna and the VHF antenna.
The installation includes:
• Location of the system parts (the AIS Unit, GNSS antenna, VHF antenna)
• Installation of coax connectors
• Installation of the GNSS antenna and cable
in
• Installation of the VHF antenna and cable
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• Installation of the AIS Unit
• System configuration
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• Connection of cables between the system and external equipment
Location of system parts
4.1.1
Antenna location for AIS systems
Pr
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4.1
This system is likely to be co-located with other types of radio equipment at the
installation site. Therefore special precautions are required when mounting the antennas
for GNSS and VHF. The figure below gives some guidelines for antenna locations.
A300-02/2.0
31
GNSS antenna
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4.1.2
in
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Kongsberg AIS 300
el
The most critical aspect of the system installation is the location of the GNSS antenna.
Incorrect or inadequate installation can lead to poor positioning performance or complete
loss of position.
Masking
Pr
If the antenna is installed in a poor location, it can suffer from masking, multipath or
interference from other radio sources which can affect the position performance.
The GNSS antenna should have an unobstructed line of sight to the sky. The signals from
the satellite propagate by line-of-sight, which means that if the antenna cannot see the
satellite, the reception will be severely impaired, if it occurs at all.
Potential obstructions are other masts and antennas, cranes, rigs and fixed platforms,
buildings in ports, high cliffs or hills close to shore. The impact of this can be anything
from degraded performance to a complete loss of positioning.
32
A300-02/2.0
Installation
Good antenna location
Figure 2
Bad antenna location, typically masking situation
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Figure 1
Multipath
Inappropriate location of the antenna can result in the antenna receiving reflections of
the incoming signal as well as the signal itself (multipath). The reflected multipath
signal takes a longer path than the direct signal, introducing an error into the position
calculation.
A300-02/2.0
33
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Kongsberg AIS 300
Interference from other radiating sources
Pr
el
Interference can be caused by close proximity to other radiating sources. Installing
GNSS antennas in close proximity to satellite communication systems operating in or
nearby GPS/GLONASS frequency bands (1.2 to 1.6 GHz) should be avoided (i.e. Sat C,
Iridium). Ideally the antenna should be situated at a minimum of 3 metres from other
radiating sources. As this is not always practically possible, a compromise location
must be sought.
Recommended distance to Sat C is minimum 2 metres horizontally and minimum 1.5
metres vertically.
34
A300-02/2.0
Installation
During installation, comprehensive tests should be carried out for potential interference
by conducting transmissions from each RF source for extended periods, individually
and simultaneously.
4.1.3
VHF antenna
4.1.4
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For the VHF antenna, consider the following:
• Mount the antenna in a location where free sight is ensured. Free mounting, and as
high as possible is preferable, otherwise the SWR and the radiation diagram will be
influenced. The higher the location, the better the coverage.
• Avoid mounting the antenna parallel with, and in the vicinity of, other metal parts
such as masts, supporting wires etc.
• The antenna should be protected from direct illumination of radar beams and other
transmitting antennas such as Inmarsat antennas.
• Run the cables in a steel pipe in areas where the danger for radiation is high.
AIS Unit
4.2
Pr
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When installing the unit, note the following:
• The unit is designed for indoor installation. Avoid locations with heavy vibrations,
strong electronic fields (close to transformers), excessive heat.
• The unit should be resiliently mounted to be in accordance with the environmental
standard IEC 60945/EN 60945.
• It is recommended that the area around the unit is kept free from dust and static
electricity.
• All connections to the unit are on the short sides of the unit and available space for
cable connections and service must be provided.
Installing the AIS Unit
The AIS Unit is default delivered with a bracket designed with solution for strain relief.
How to install the AIS Unit with strain relief or wall mount bracket
1 Place the bracket where the unit shall be mounted and mark the holes for the screws.
2 Drill the holes.
3 Mount the AIS Unit on the bracket.
4 Mount the bracket with the AIS Unit where the holes were drilled.
5 When cables are connected, fasten the cables with strips to the strain relief.
How to install the AIS Unit with DIN rail bracket (optional equipment)
1 Fasten the bracket to the AIS Unit with four screws at the rear of the unit.
2 Fasten the AIS Unit with the bracket to the DIN rail.
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Kongsberg AIS 300
4.2.1
Installing the pilot plug
The AIS Unit is default delivered with a pilot
plug, part A300–08, without serial cable. A plug
with cable, part A300–07, can be delivered as
an option.
Use a paired cable with cords of minimum 0.5
mm2 to assemble the pilot plug.
Use the pinning in the table to connect the pilot
plug to the AIS Unit.
AIS Unit
port
RX+
RX-
TX+
TX-
GND
ar
Pilot plug
4.3
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Related topics
• Serial ports on page 26
Antenna and cable installation
el
The maximum length for each of the antenna coaxial cables is 30 metres for RG214 and
100 metres for 1/2" Superflex. If longer cables are needed, a low noise signal amplifier
(LNA) should be fitted.
4.3.1
Pr
It is recommended to use lightning arrestors. See Lightning arrestor specifications on
page 88.
GNSS antenna and cable installation
The cable recommended for the GNSS antenna is ½" superflex.
Caution
The GNSS connector is the connector located to the left (TNC). Do not
confuse with the VHF connector (N).
Note
The cable running from the GNSS antenna to the main unit should be as straight as
possible. Do not crush or crimp the cable with tie-downs, as this will affect the electrical
properties of the cable.
Procedure
1 Attach the interconnection pigtail cable to the antenna connector.
36
A300-02/2.0
Installation
Wrap the cable connection with waterproof self-vulcanising tape.
Thread the interconnection cable through the extension pipe and the mounting
bracket and attach the extension pipe with the mounting bracket to the antenna.
Attach the antenna mounting bracket to the ship's masthead or pole with the U-bolts.
Connect the interconnection cable to the ½" superflex cable.
Wrap outdoor cable connections with waterproof self-vulcanising tape. An alternate
way of waterproofing is to use heat shrink hose with glue. The hose should cover
the whole connector and part of the cable.
Dependent on the cable installation, secure the cable to the mast every one to three
metres with clamps or bands (non-metal).
Check the antenna cable for short-circuiting.
Connect the other end of the ½" superflex cable to the interconnection cable. This
cable is delivered in order to get secure cable runs to the main unit.
ar
10 Connect the interconnection cable to the receiving device. All GNSS receivers
provide necessary power through their antenna RF connectors.
in
Related topics
• GNSS antenna mechanical dimensions and installation on page 84
VHF antenna and cable installation
im
4.3.2
Caution
el
The construction of the mount enables routing of the cable either along the inside or the
outside of the mast tube. An RG-214 cable is used for distances shorter than 30 metres,
while a ½" superflex cable is used for distances up to 100 metres.
Pr
If the antenna cable is attached to the AIS Unit, do not attach the antenna
cable to the antenna when the unit is running. If the antenna cable is
short-circuited with POWER ON, the AIS module can be damaged.
Caution
Do not connect the VHF antenna cable to the GNSS connector as this can
damage the GNSS receiver.
How to install the VHF antenna
Attach the antenna to a mast tube or pole by using the provided U-bolts.
Attach the antenna cable to the antenna.
Wrap outdoor cable connections with waterproof self-vulcanising tape. An alternate
way of waterproofing is to use heat shrink hose with glue. The hose should cover
the whole connector and part of the cable.
Make sure the ground strap at the antenna base is connected to a suitable place
ensuring good grounding.
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Kongsberg AIS 300
Seal the terminals of the ground strap from moisture to prevent corrosion. Paint or
silicone sealant is recommended for this.
Secure the cable to the mast every one to three metres with clamps or bands.
Route the connector at the other end of the antenna cable to the AIS Unit and
connect the cable to the N-connector named VHF. A short RG-58 or RG-214 cable
is often needed in order to secure cable runs to the unit.
Related topics
• VHF antenna mechanical drawing and installation on page 86
4.4
Electrical installation
The electrical installation consists of:
ar
• Connecting a cable between the GNSS antenna and the AIS Unit.
• Connecting a cable between the VHF antenna and the AIS Unit.
in
• Connecting cables with output/input data between the AIS Unit, network and other
equipment.
Caution
im
• Supplying 12 to 32 V DC power to the AIS Unit.
Pr
el
Before powering on the AIS Unit, make sure the antenna cables and
antennas are connected. Connecting or disconnecting an antenna or antenna
cable when the AIS Unit is already powered, may permanently damage the
antenna port on the AIS Unit or the antenna itself, voiding your warranty. If
the antenna cable is short-circuited with power on, the receiver within the
AIS Unit can be damaged.
How to carry out the electrical installation
Note
The antenna cables must be as straight as possible. Do not crush or crimp the cable with
tie-downs as this will affect the electrical properties of the cables.
Connect the GNSS antenna cable to the connector marked GPS on the AIS Unit.
Connect the VHF cable to the connector marked VHF on the AIS Unit.
Connect the network cable for LAN.
Connect the power supply to the power connector on the AIS Unit. Minus (-) and
plus (+) as indicated on the unit.
When all cables are connected, power on the AIS Unit.
When the power is connected, all LEDs are unlit for about 30 seconds. Then all
LEDs will start to blink in normal operation
38
A300-02/2.0
Installation
Related topics
• Coax connector installation on page 75
• Serial ports on page 26
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• LED indicators AIS Unit on page 27
A300-02/2.0
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Kongsberg AIS 300
5 Configuration
5.1
Configuration methods
ar
This system is primarily made for configuration with standardised AIS NMEA sentences.
Via PI (serial or LAN). These sentences are described in the AIS mobile station test
standard IEC 61993–2. The described configuration sentences are normally sent to a
mobile station from a user interface (UI) such as ECDIS or RADAR.
in
In order to make the user independent of a configuration UI and NMEA sentences, a
WEB interface has been included in this system.
IP address when delivered from factory is:
• Subnet 255.255.255.0
• Gateway 10.0.21.1
Configuration with NMEA sentences
el
5.1.1
im
• LAN 10.0.21.60
Pr
The AIS mobile station test standard IEC 61993–2 defines the AIS NMEA sentences.
New software upgrades will be available after changes in the standard. As the NMEA
(PI) sentences are standardised and available in the standard, this manual will not
describe the NMEA sentences.
TCP/IP port (multiclient) for configuration of the system is 4712.
Related topics
• PI sentences on page 46
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A300-02/2.0
Configuration
5.1.2
Configuration via WEB interface
The user can access the WEB interface if the IP address is known and the address is
available for the user. The WEB interface uses the setup files in the system and changes
are written to these files.
5.1.2.1
Connecting to WEB interface
How to connect to the WEB interface
Open a browser and write: http:/// in the address bar
Enter the default login credentials for User: ais
Enter the default login credentials for Password: 1234
Continue with the configuration once you have entered the AIS Unit.
5.1.2.2
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Changing parameters via WEB interface
Pr
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The WEB interface consists of folders for the various settings, which again have
sub-folders. When you click a folder, a dialog box with the settings appears. This is
where you change the settings.
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Kongsberg AIS 300
5.1.2.3
WEB interface Help function
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When you have made the changes, they need to be confirmed before the changes take
place. This confirmation is carried out under Review changes. Here are all the changes
listed and you are asked to confirm.
5.1.2.4
im
hovering over the parameter name
in
A description on how to use the WEB interface is available when connecting to an AIS
Unit. In addition there is a short description linked to all parameters that are visible when
Reconfiguration of IP address via WEB interface
Pr
el
Changes to the IP address, subnet mask, gateway and host name are located under
Network Setup. As a typing error during remote configuration might lead to loss of remote
access, special care should be taken during changes of network parameters. The user will
be asked to apply changes and a warning will be given. The system will automatically
redirect the user to the correct address after the change if the user is on the correct subnet.
42
A300-02/2.0
5.1.2.5
Voyage related data
in
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Configuration
im
Some parameters can be changed in connection with the voyage and these voyage related
data can be configured under Setup →Voyage.
el
Destination
Pr
Destination should be entered in accordance with the IMO SN/Circ 244 which gives
guidance for UN/LOCODE (United nation/Location Code). 20 characters are available
for the name.
Draught (static)
Draught (static) shall be entered in decimeters in the WEB interface (115 = 11.5 cm). To
be updated if the salinity of the water or the weight of cargo is changed.
Type of ship and cargo
Tables for categorizing of “ship types” are defined in IMO SN/Circ 227 Guidelines
for installation of shipborne AIS.
• A “ship type” is identified by a first and second digit taken from different tables in
the IMO standard:
– Table A Commercial vessels not engaged in special activities, 1 digit #5 says
“special craft” — see table C
– Table C Special craft engaged in “official” activities, says 2 digit #5 “Law
enforcement vessel”
– Hence a CG vessels is identified; 1st digit 5, 2nd digit 5
A300-02/2.0
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Kongsberg AIS 300
Software update via WEB interface
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5.1.2.6
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• Typical ship types can be found when hovering over the parameter name
Pr
The software can be updated via the WEB interface. After clicking Update SW, you will
be asked for a location for the new software. The system will check the validity of the
update before the software is restarted and the update takes place.
The software can also be updated locally via an USB stick.
44
A300-02/2.0
Configuration
Related topics
• Software updates on page 56
5.2
Message types
ar
The AIS mobile station system supports different messages on the VHF data link and
on the PI and LAN interfaces. The illustration shows the message flow at VDL and
PI on serial and/or LAN.
VDL messages
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5.2.1
in
After start up, that is the first minute after the AIS Unit software has started, the system
starts to transmit message 1 to 3 and 5 on a regular basis. The transmit interval is
dependent on speed and turn rates for messages 1 to 3.
Via the VDL interface the system can receive or transmit the following messages:
Message name
Position report
Position report
RX
TX
Description
•
•
•
•
Position report
•
•
Pr
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Msg.
Id
Base station report
•
Static and voyage related data
•
•
Binary addressed message
•
•
Used as necessary for transmitting messages
between base station and addressed transponder
and between base stations.
Binary acknowledge
•
•
Acknowledge of message 6.
Binary broadcast message
•
•
Same as 6, but this one is for broadcast.
Standard SAR aircraft position
report
•
10
UTC/data inquiry
•
11
UTC/data response
•
12
Addressed safety related message
•
•
Used as necessary for transmitting safety related
messages between base station and addressed
transponder or vice versa.
13
Safety related acknowledge
•
•
Acknowledge of message 13.
A300-02/2.0
Sent between base station and transponder or
between base stations. Contains information
about position, UTC, date and slot number.
•
45
Kongsberg AIS 300
Msg.
Id
RX
TX
Safety related broadcast message
•
•
Same as 12, but this one is for broadcast.
15
Interrogation
•
•
Request for a specific message type. Used for
request for transmission of information from one
system to another.
16
Assignment mode command
•
Send from base station to transponder assigning
timeslot and MSG type.
17
DGNSS broadcast binary message
•
Used for transmitting correction signals from
the base station to transponders.
18
Standard class B equipment position
report
•
19
Extended class B equipment position
report
•
20
Data link management message
•
21
Aids-to-navigation report
•
22
Channel management
•
23
Group assignment command
•
24
Static data report
Single slot binary message
26
Multiple slot binary message with
Communication state
27
SAT AIS message
ar
Channel assignment, information sent from base
station to transponder regarding use of channels,
output power, bandwidth, etc.
in
Assignment of a specific report behaviour by
competent authority using a Base station to a
specific group of mobiles.
Additional data assigned to an MMSI.
Part A: Name
Part B: Static data
•
•
Short unscheduled binary data transmission
(broadcast or addressed).
•
•
Scheduled binary data transmission (broadcast
or addressed).
•
Short AIS message sent by a Class A AIS on
Ch C and D. Can be received if receiving on
Ch C and D.
Pr
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25
Description
Gives information to transponder when MSG 4
is coming.
•
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14
Message name
5.3
NMEA sentences
5.3.1
PI sentences
The system outputs all received VDL messages as VDM sentences via the PI LAN and
PI Serial port. Default is UDP/port 4711 and TCP/Port 4712.
PI on TCP can be turned off under Setup →Misc in the WEB interface by changing the
FULL_PI_TCP parameter to 0. The TCP port can be changed under Setup →Network by
changing the LAN_PITCP_PORT parameter. Use value above 23.
46
A300-02/2.0
Configuration
In addition, all VDL messages transmitted by the system are output as VDO sentences.
ALR sentences are periodically output on the same interfaces. Other sentences can be
output depending on configuration.
Via the PI interface the system can receive or transmit sentences according to IEC
61993–2.
The table contains input and output messages on the PI interface. All NMEA fields
are used.
NMEA Sentence
RX
TX
•
ABK
Description
Transmission interval
AIS addressed and binary broadcast
acknowledgement
Upon reception of messages 7 and
13, and when sending message 15
ABM
•
ACA
•
ACK
•
Alarm acknowledge
AIQ
•
Query for specified sentence
(AIQ,nmea)
AIR
•
AIS interrogation request
AIS addressed binary and safety
related message
•
HBT
•
LRI
•
LRF
•
30 seconds/1 min.
AIS broadcast binary message
•
Heartbeat (BIIT)
Long range interrogation
•
•
Long range function
Long range reply with destination
for function request A
el
LR1
Set alarm state
im
BBM
Output when change of status or on
query
ar
•
ALR
AIS channel assignment message
in
•
•
Long range reply with destination
for function request B, C, E and F
Pr
LR2
•
Long range reply with destination
for function request I, O, P, U and W
•
Ship static data
•
Text transmission
When change of status
VDM
•
AIS VHF data-link message
When receiving message on VDL
VDO
•
AIS VHF data-link own-vessel
report
When sending message on VDL
LR3
SSD
TXT
•
VER
•
•
Version
VSD
•
•
Voyage static data
Proprietary:
Query request for:
PSTXQ,
BRCADR
•
PI LAN Broadcast parameters
IMO
•
IMO number
MMSI
•
MMSI number
OWNIP
•
Configure IP parameters
A300-02/2.0
47
Kongsberg AIS 300
NMEA Sentence
PORT
RX
TX
•
Description
Transmission interval
Serial port configuration
Response on query:
PSTXR,
BRCADR
•
PI LAN Broadcast parameters
IMO
•
IMO number
MMSI
•
MMSI number
OWNIP
•
Configure IP parameters
PIWWSSD
•
Inland waterway static ship data
PIWWVSD
Inland waterway voyage ship data
PORT
Serial port configuration
PSTXS,
Set:
•
PI LAN Broadcast parameters
IMO
•
IMO number
MMSI
•
MMSI number
OWNIP
•
Configure IP parameters
PIWWSSD
•
Inland waterway static ship data
PIWWVSD
•
Inland waterway voyage ship data
PORT
•
Serial port configuration
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in
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5.3.1.1
BRCADR
STXAIS, proprietary internal information sentence
Format
Pr
el
This sentence is default output at start-up of the AIS Unit. In addition it can be output
at a configurable interval but default each 120 seconds. You can request the message
with a NMEA sentence. To request the internal AIS information, the following can
be sent on the PI.
$PSTXQ,STXAIS*
The AIS BS response message has this format (one message per port):
Format
$PSTXR,STXAIS,,,,,
,,*
Format description
STXAIS = Message ID identifying this sentence
type = Hex value describing the type of AIS Unit
version = Firmware version
uptime = Uptime since last reboot dddhhmm
radio stat = Hex value radio status
48
A300-02/2.0
Configuration
10
fwd = Forward power
rfp = Reflected power
thread status = Hex value of thread status. The thread that caused watchdog to trig
system status = Hex value of the system status. Reason for last reboot
low synth = The data read when the lower synth is selected
The following are not used in this AIS product:
• 
• 
• Always <0>
5.3.1.2
VDM sentence structure
ar
The structure for a VDM sentence can be as follows:
• !AIVDM,1,1,,B,13n324wP000gWlhTCDQN4?vD00Sb,0*1B
5.3.1.3
in
The ! sign indicates that the sentence is in 6-bit NMEA binary format, which is not a
direct readable format. In this example the AIVDM indicates that this is data received
from another unit. The B indicates that the message is received on AIS channel B.
ALR sentence structure
im
The structure for an ALR sentence can be as described below:
• $AIALR,150517.00,032,A,V,AIS: heading lost/invalid*27
el
The $ sign indicates that this is an ASCII text sentence where it is possible to read some
of the information directly. Typical use of this sentence type is for the alarm information.
Pr
Typical data output via the PI serial or LAN port can be as follows:
• !AIVDM,1,1,,B,13n324wP000gWlhTCDQN4?vD00Sb,0*1B
• !AIVDO,1,1,,,13n31uOP000gWljTCDQN4?vH0000,0*1E
• $AIHBT,30,A,1,*25
• !AIVDM,1,1,,B,4h2MBmAupFaH<0gWljTCDQO0087K,0*31
• !AIVDO,1,1,,,13n31uOP000gWljTCDQN4?vJ0000,0*1C
• !AIVDM,1,1,,C,8000000Iv1OecwVhF:q`p`8d=b7n8CtegGvCs6i`WP,4*05
• $AIALR,083346.00,030,A,V,AIS: no valid COG information*4A
• $AIALR,150517.00,035,A,V,AIS: no valid ROT information*40
• $AIALR,150517.00,032,A,V,AIS: heading lost/invalid*27
• $AIALR,150517.00,025,A,V,AIS: external EPFS lost*2A
• !AIVDO,1,1,,,13n31uOP000gWljTCDQN4?vT0000,0*02
• !AIVDM,1,1,,A,13n324wP000gWlhTCDQN4?vV059P,0*57
• !AIVDM,1,1,,A,4h2MBoiupFaHCPgCF0TBHl70059P,0*33
• !AIVDO,1,1,,,13n31uOP000gWljTCDQN4?vb0000,0*34
• !AIVDO,1,1,,,13n31uOP000gWljTCDQN4?vd0000,0*32
A300-02/2.0
49
Kongsberg AIS 300
• !AIVDM,1,1,,A,4h2MBmAupFaHF0gWljTCDQO0059P,0*50
• !AIVDO,1,1,,,13n31uOP000gWljTCDQN4?vf0000,0*30
• !AIVDO,1,1,,,13n31uOP000gWljTCDQN4?vh0000,0*3E
• !AIVDM,1,1,,C,13oChT0001Pg`p6TCDD6GPP`00S2,0*41
Data can be decoded/replayed and verified using an external system that is capable
of reading the data.
There are two types of alarm messages which consist of two different sentences. These
are the TXT and the ALR sentences. The TXT indicates a change in status of some
operational parameters, and the ALR informs of an error situation that might need
corrective action.
Note
Heading valid will occur as TXT (info) when received first time after start-up. If lost
Sensor sentences
in
5.3.2
ar
again, the alarm will be valid until it occurs or until the unit is restarted.
Rx
•
GBS
•
GGA
•
Description
Lat offset, Lon offset, altitude offset not
used.
GNSS satellite fault detection
Global positioning system fix data
•
Geographic position – latitude/longitude
•
Nav status indicator not used . Mean sea
level not used. Antenna altitude not used.
HDT
•
Heading
RMC
•
Recommended minimum specific GNSS
data. Nav status not used.
ROT
•
Rate of turn
THS
•
Heading
VBW
•
Stern water speed and stern ground speed
parameters are not used .
VTG
•
Course over ground and ground speed
ZDA
•
Time and data
GLL
GNS
5.3.2.1
Transmission interval
Pr
DTM
Tx
el
NMEA
Sentence
im
The main intention of the sensor port is to receive input from an external system. Such
systems could be an external GPS source. The input messages on the Sensor interface
are according to the table.
Priority of position
The system will prioritize the use of NMEA sentences in accordance with the position
priority table.
50
A300-02/2.0
Configuration
Priority
Sentence
RMC
GNS
GGA
GLL
5.3.2.2
Priority between sensors
There is an automatic priority of which position input the AIS mobile station will
transmit. The priority list is as follows:
External sensor input of differential corrected position.
Internal sensor input of differential corrected position.
External uncorrected position.
Internal uncorrected position.
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Differential corrections
in
5.4
Pr
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The system can receive RTCM 2.3 DGPS corrections on the RTCM serial port (RS-422).
It will automatically enter differential mode when corrections are received, given that
the corrections are valid.
A300-02/2.0
51
Kongsberg AIS 300
6 Getting started
How to turn on the AIS Unit
ar
6.1
This chapter describes the main operating procedures for getting started and using the
AIS Unit.
Ensure that the serial connection(s), the network and the antennas are connected.
Insert the power connector with 12 to 24 V DC.
After approximately 30 seconds the LEDs will start to flash. The GPS LED will
start to flash after the initialisation. The initialisation period may take up to 15
minutes, depending on the GPS almanac. It will change from yellow to green when
the initialisation period is over.
el
Related topics
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in
6.2
Pr
• LED indicators AIS Unit on page 27
AIS Unit settings
The following settings must be carried out in order to get a working AIS Unit. We
recommend to carry out these settings via the WEB interface. Refer to Configuration on
page 40 on how to use the WEB interface.
6.2.1
Network settings
How to change the network settings
Connect the network port ( AIS LAN) of the AIS Unit to a PC, network switch or
hub. The unit is delivered with default IP address.
Type the address: http://< ip-address> to connect to the WEB interface of
the AIS module for configuration. Default IP address is: 10.0.21.60.
Or you can use NMEA sentences for configuration of the AIS module.
52
A300-02/2.0
Getting started
Related topics
• Reconfiguration of IP address via WEB interface on page 42
• Configuration via WEB interface on page 41
6.2.2
Static parameters
As far as possible the AIS mobile station is pre-configured. There are some parameters
that need to be set in connection with the installation. These are collected under Setup
→Static. Static data should normally not change after installing the AIS Unit.
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Remember to control that the entering of the static data is properly completed. The
installation personnel should configure the static data as a part of the installation. Ship
personnel should be available when configuration is executed in order to provide correct
vessel data such as MMSI, IMO number etc.
MMSI
The MMSI number is default set to 0. The unit will not transmit before a valid MMSI
number is configured.
DIMA
External GPS antenna location. In metres.
DIMA_LOCAL
AIS internal GPS antenna location. In metres.
A300-02/2.0
53
Kongsberg AIS 300
HEIGHT_KEEL
6.2.3
im
in
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Vessel height over keel in meters; Total height from keel to top of mast.
Radio — VHF channels and power
6.3
Pr
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Default VHF RX and TX channels are the standard AIS channels. Ch C is default off.
Power level is default 12 W. Parameters can be set by sending a BCF sentence to the AIS
Unit. These parameters can also be set in the WEB interface under Setup →Radio.
Status information
The Status page in the WEB interface holds information on Alarms (if any), Status and
Station List.
Alarms, if any, are listed in addition to own position (internal GNSS pos). The Station
List gives the number of visible AIS vessels and the distance to the most distant unit.
VSWR, Forwarded and Reflected power are displayed in the Status box.
54
A300-02/2.0
Pr
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Getting started
A300-02/2.0
55
Kongsberg AIS 300
7 Maintenance
The AIS system consists of both software and hardware. The software part can be
reinstalled or upgraded to the latest version in the field. Service on the hardware in
the field can consist of:
• Exchanging damaged GNSS antenna cables.
• Exchanging damaged VHF antenna cables.
• Exchanging failed AIS Unit.
in
• Exchanging failed VHF antenna.
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• Exchanging failed GNSS antenna.
Periodic maintenance
el
7.1
im
The AIS Unit is not designed for service in the field and opening the housing can result
in damage or degradation of the unit and void the warranty.
7.1.1
Pr
Some activities should be carried out on a regular basis to maintain the condition or
operational status of the equipment.
Antenna care
The enclosures should be carefully cleaned on a regular basis with a damp cloth and mild
soap. Brush off any ice or snow to ensure optimal performance.
Note
Do not use abrasive cleaners or chemicals.
7.2
Software updates
Kongsberg Seatex AS will regularly offer software upgrades for the AIS Unit with
improvements and new functionalities. It is up to the user to decide whether he will
update his/her unit to the latest version. Contact customer support to receive the new
software.
56
A300-02/2.0
Maintenance
7.2.1
Software update routine
Software on the AIS module within the AIS Unit can be updated either remotely from
a PC (via WEB interface) or locally (via USB device).
How to update software via USB
1 Insert the USB device with the unzipped software update in the USB port.
Note
Not all USB devices are supported.
ar
When the AIS Unit detects a new firmware on the USB device it will be validated
and uploaded.
The unit goes through an update procedure and restarts the processes which are
affected by the update.
When the update is finished the AIS Unit will enter standard operation mode based
on the settings it had before the update.
7.3
im
in
Related topics
• Software update via WEB interface on page 44
Repairs and modifications
Pr
el
Repair of the AIS Unit can consist of:
• exchanging damaged antenna cables
• exchanging failed antennas
• exchanging the AIS Unit
These repairs can be carried out by a skilled electrician.
7.3.1
Exchange of antenna cable
How to change antenna cable
Caution
If the antenna cable is attached to the unit, do not attach the antenna
cable to the antenna with the AIS Unit powered on. If the antenna cable is
short-circuited with power on, the receiver or AIS module within the unit
can be damaged.
Turn off the AIS Unit by disconnecting the power connector from the AIS Unit.
Dismount the damaged antenna cable. The new antenna cable must be as straight as
possible. Do not crush or crimp the cable as this will affect the electrical properties
of the cable.
Connect the antenna cable to the antenna.
A300-02/2.0
57
Kongsberg AIS 300
The connection between the antenna and the antenna cable should be sealed against
water penetration, preferably using waterproof self-vulcanizing tape.
Connect the antenna cable to the AIS Unit.
7.3.2
Exchange of antenna
How to change antenna
Caution
If the antenna cable is attached to the unit, do not attach the antenna
cable to the antenna with the AIS Unit powered on. If the antenna cable is
short-circuited with power on, the receiver or AIS module within the unit
can be damaged.
7.3.3
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in
Turn off the AIS Unit by disconnecting the power connector from the AIS Unit.
Dismount the failed antenna.
Mount the new antenna on the mounting rod or similar.
Connect the antenna cable to the antenna.
The connection between the antenna and the cable should be sealed against water
penetration, preferably by using waterproof self-vulcanizing tape.
Connect the antenna cable to the AIS Unit.
im
Repair of AIS Unit
7.3.3.1
Pr
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All repairs and modifications of the unit, except from installation of new software
versions and setup of the system, should be carried out by qualified personnel. A failed
unit should be shipped back to Kongsberg Seatex AS or other agreed service point for
repair. Board changes shall only be conducted in agreement with Kongsberg Seatex AS
service personnel.
Changing the interface board
How to change the interface board
1 Disconnect all cables and place the AIS unit on a table in EMC safe conditions.
2 Remove the three screws on each side of the top cover and lift it off.
58
A300-02/2.0
Maintenance
Dismount the two side plates by removing the two screws on each side.
Remove the four screws holding the interface board and lift the board off. It is
stacked on top of the AIS module and some wriggling will be necessary.
Mount the new interface board on top of the AIS module.
Refasten the side plates and the top cover.
7.3.3.2
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Changing the GPS board
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How to change the GPS board
Disconnect all cables and place the AIS unit on a table in EMC safe conditions.
Remove the three screws on each side of the top cover and lift it off.
Dismount the two side plates by removing the two screws on each side.
Pr
A300-02/2.0
59
Kongsberg AIS 300
Remove the four screws holding the interface board and lift the board off. It is
stacked on top of the AIS module and some wriggling will be necessary.
When the interface board is off, disconnect the GPS antenna connector and remove
the spacer holding the GPS board.
Lift the GPS board off the connector.
in
Pr
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7 Exchange the GPS board with the new board.
8 Fasten the board with the spacer and connect the GPS antenna cable.
9 Place the interface board on top of the AIS module and refasten the screws.
10 Refasten the side plates and the top cover.
7.3.4
Installation of spare AIS Unit
If a spare unit is rented while your unit is in for repair, it is delivered with the latest
version of the product software.
How to install a spare AIS Unit
1 Turn off the AIS Unit by disconnecting the power connector from the AIS Unit.
60
A300-02/2.0
Maintenance
Disconnect the unit to be repaired from its cables and replace it with the spare unit.
Connect all cables as they were on the original unit.
Power up the unit.
7.4
Troubleshooting
This part of the document is written for personnel with operator experience when a
situation arises where assistance from service personnel may be required. The aim of
this section is to identify the problem so that the appropriate action can be taken.
7.4.1
System status
ar
The error conditions in the system are usually observed by looking at the colour codes
of the four LED indicators located on the front panel or in the Status page of the Web
interface.
in
When contacting Kongsberg Seatex AS support, please refer to the serial number of the
unit and the software version. The software version number can be found in the Web
interface →Update SW.
im
Related topics
• LED indicators AIS Unit on page 27
7.4.2
el
• Status information on page 54
No power
Pr
When powering on the unit, the LEDs will start normal operation after approximately 30
seconds.
If the LED indicators are not lit, check the power connection to the unit.
7.4.3
External output problems
During operation situations may occur where the external equipment receives no data
from the AIS Unit.
What to check if external equipment receive no data from the AIS Unit
Check the network cables/equipment, serial lines (if used), cables, cable connectors
and antennas for mechanical damage.
Check that the connectors are connected to the correct output ports both on the AIS
Unit and on the connected equipment. The pinning is shown in Interfaces AIS
Unit on page 25.
If the cable and connectors are OK, check that the output configuration of the AIS
Unit is set up correctly.
A300-02/2.0
61
Kongsberg AIS 300
Related topics
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• Configuration via WEB interface on page 41
62
A300-02/2.0
Mechanical drawings
8 Mechanical drawings
This chapter contains an outline drawing including mechanical dimensions of the AIS
Unit.
Note
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The drawings are not to scale. To-scale drawings are available on request.
A300-02/2.0
63
Kongsberg AIS 300
AIS Unit dimensions
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8.1
64
A300-02/2.0
Mechanical drawings
Bracket with strain relief dimensions
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8.2
A300-02/2.0
65
Kongsberg AIS 300
8.3
Wall mounting bracket dimensions
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This wall mounting bracket is optional and not part of the standard delivery.
66
A300-02/2.0
Mechanical drawings
8.4
DIN rail mounting
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For vessels when wheelmark is not required.
A300-02/2.0
67
Kongsberg AIS 300
9 Parts list
Standard components
Description
A300-01
Kongsberg AIS 300 mobile station
A101-01
GPS antenna, GPS 4
A101-02_H *)
Mounting kit for GPS 4
A100-58
VHF antenna, AV7N
A300-02
Instruction Manual, AIS 300
A300-03 **)
Connector set for serial and power
A300-04
Bracket with strain relief
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A300-08
***)
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Part number
9.1
AIS 300 pilot plug
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*) A101-02_H (Mounting kit for GPS antenna) consists of :
• A101-02 (Mounting bracket for GPS 4)
Pr
• A101-03 (Interconnection cable for GPS 4 antenna, with N-female)
• A100-93 (Cable main unit to GPS antenna cable, with N-female, 0.5 m)
**) A300-03 consists of 4 x 10 pin connector for the green Phoenix connectors and one
2–pin power connector.
***) With bracket, no cable. For plug with cable order A300–07.
9.2
System accessories
Part number
Description
A100-59
GPS/VHF antenna cable (RG–214), price per m, maximum length
30 m
A100-60
GPS/VHF antenna cable (low loss), price per m, maximum length
100 m
A100-71
Connector kit for GPS antenna cable (low loss), two connectors
A100-73
Connector kit for VHF antenna cable (low loss), two connectors
68
A300-02/2.0
Parts list
Description
A100-61
Connector kit for GPS antenna cable (RG–214), two connectors,
(1 ea.)
A100-66
Connector kit for VHF antenna cable (RG–214), two connectors,
(1 ea.)
G071-91
Cable main unit to VHF antenna cable, 0.5 m, (1 ea.)
A101-03
Interconnection cable for GPS 4 antenna, with N-female, (1 ea.)
A100-93
Cable main unit to GPS antenna cable, with N-female, 0.5 m, (1 ea.)
A101-02
Mounting bracket for GPS 4, (1 ea.)
A300-05
Wall mount bracket without strain relief
A300–06
DIN rail bracket for DIN rail mounting
A300–07
Pilot plug with 10–metre cable
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Part number
A300-02/2.0
69
Kongsberg AIS 300
10 References
Reference documents
NMEA 0183 Standard for Interfacing Marine Electronic Devices, Version 3.00
RTCM Recommended Standards for Differential Navstar GPS/GLONASS Service,
Version 2.3
Technical characteristics for an automatic identification system using time-division
multiple access in the VHF maritime mobile band, Recommendation ITU-R
M.1371-5
Maritime navigation and radiocommunication equipment and systems - Automatic
identification systems (AIS) - Part 2: Class A shipborne equipment of the automatic
identification system (AIS) - Operational and performance requirements, methods
of test and required test results, IEC 61993–2, ed 2.0
Maritime navigation and radiocommunication equipment and systems - Digital
interfaces - Part 1: Single talker and multiple listeners, IEC 61162–1, ed 4.0
Characteristics of a Transponder System Using Digital Selective Calling Techniques
For Use With Vessel Traffic Services and Ship-To-Ship Identification, ITU-R M.825
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A300-02/2.0
Appendix A EU declaration of conformity
Appendix A
EU declaration of conformity
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EC type examination certificate, module B, issued by BSH.
A300-02/2.0
71
Pr
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Kongsberg AIS 300
72
A300-02/2.0
Pr
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Appendix A EU declaration of conformity
A300-02/2.0
73
Kongsberg AIS 300
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Appendix B
Declaration of conformity
74
A300-02/2.0
Appendix C Coax connector installation
Appendix C
Coax connector installation
The connector consists of two parts: the connector head and the cable entry.
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The instructions below are an excerpt from Huber+Suhner assembly instruction,
DOC-0000179418, rev. C, March 2008.
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Appendix C Coax connector installation
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Appendix C Coax connector installation
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Appendix D
½" coax cable specifications
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Appendix E RG–214 specifications
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Appendix E
RG–214 specifications
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Kongsberg AIS 300
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Appendix F Antenna specifications
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Appendix F
Antenna specifications
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F.1 GNSS antenna mechanical dimensions
and installation
Excerpt from Procom datasheet
Application
Active receiving antenna for the 1575 MHz NAVSTAR GPS Satellitte Navigation System
Electrical specifications
GPS 4, quadrifilar helix active
antenna
Frequency
1575 MHz
Impedance
Nom. 50 Ω
Polarisation
Circular right-hand
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Model and type
> 32 dBi
SWR (output)
< 2.0
Supply voltage
in
Gain (in axial direction)
5 ± 0.5 V DC
Approx. 44 mA
EMC
Full protection (IEC 801, IEC 255)
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Current consumption
Mechanical specifications
Antenna dome: weather-resistant
low-loss plastic,
Colour
White
Wind surface
Approx. 0.0072 m2
Max. wind speed
200 km/h
Wind load
Approx. 9.6 N @ 150 km/h
Temperature range
-50 °C to +70 °C
Connector
FME-female (pin) (N-female pigtail
when delivered by Kongsberg
Seatex AS)
Total height
Approx. 23 cm
Antenna diameter
33 mm
Weight
Approx. 150 g
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Materials
Mounting
Vertical on 1–inch water pipe or on PROCOM 1–inch mounting brackets.
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Appendix F Antenna specifications
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F.2 VHF antenna mechanical drawing and
installation
Excerpt from Comrod datasheet
Type
Comrod AV7.
Application
High quality dipole antenna designed for the marine VHF radio telephone service.
Electrical specifications
Nominal impedance
50 Ω
100 W
Power rating
2 dBi
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Pattern
in
Gain
156 to 162 MHz, VSWR < 1.5:1
145 to 165 MHz, VSWR < 2:1
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Frequency range
Horizontal plane: Omnidirectional
Vertical plane: see reverse page
Vertical
Connector
UHF female is standard
DC-grounded
Yes
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Polarisation
Pr
Mechanical specifications
Design
Centerfed coaxial dipole. Radiating
elements completely enclosed
in polyurethane foam within a
fiberglass tube. Mounting bracket in
aluminium.
Height
1.25 m (4 ft)
Weight
1 kg, including U-bolts
Wind rating
55 m/s = 125 mph
Finish
Temperature range
Polyurethane lacquer, white
-55 °C, +71 °C (-67 °F, +160 °F)
Mounting
Mounted to the bulkhead by means of 4 holes in the aluminium bracket or to a mast or
tube with U-bolts. The tube may be horizontal or vertical.
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Appendix F Antenna specifications
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Appendix G
Lightning arrestor
specifications
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Excerpt from Huber+Suhner data sheets.
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Appendix G Lightning arrestor specifications
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Appendix H
Production test
AIS 300
AIS 300BF
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Type:
The AIS Unit, serial number: ......................................................, has been mounted and
tested according to the valid revision of the product description.
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Comments:
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