OPERATION & INSTALLATION MANUAL AIS RX
Contents
1. 161 975 MHz and AIS2 162 025 MHz In areas where these two channels are not available AIS can automatically change to other alternatively available frequencies AIS uses two VHF radio channels where the information is trarsmitted in short data packages or slots in predefined and synchronized time frames The dynamic information position speed heading etc is transmitted in intervals from 2 s up to 10 s depending on the speed and maneuvers of the transmitting ship were the AIS is mounted Static and voyage related information type of ship size cargo destination etc is transmitted every sixth minute or upon request from other units Position course and speed normally are collected from the same sensor systems that provides the same information used in the navigation e g in radars or ECDIS and this is normally based on GPS or DGPS All ships within VHF coverage will be able to receive AIS data and competent authorities that have installed networks with coastal AIS coverage can receive the information The capacity for the ships to report is defined by the IMO performance standard to a minimum of 2000 data packages or slots per minute see picture 2 ITU Technical Standard for the Universal AIS has been kind to double this and has provided AIS with 4500 data packages or slots per minute The transmission is based on the SO TDMA Self organized Time Division Multiple Access technique that allows the system to overload with 400 till2. olla agate Pea nt if DAVID RI a It is of utmost importance that you read this manual before you start to install and use your AIS RX YACHT 3 GLOSSARY To make the reading of the manual easier we like to start up with introducing the used abbreviations and glossary AIS ATC DGPS ETA GPS GALILEO GNSS IMO NM RX SMA SOLAS SOTDMA STDMA VHF VIS Automatic Identification System Air Traffic Control Differential Global Positioning System Estimated Time of Arrival Global Positioning System European equivalent to GPS Global Navigation Satellite System International Maritime Organization Nautical Mile 1852 m Receive Receiver Swedish Maritime Administration Safety Of Life At Sea Self Organized Time Division Multiple Access Very High Frequency Vessel Traffic Services Like ATC but for ships 4 CONDITIONS Before you start using the AIS RX YACHT product from True Heading AB it is important that you read and fully understand the installation manual and its instructions You should only proceed with the installation if you are confident that you will be able to do so True Heading AB cannot be held liable for any injury or damage caused by during or because of the installation of AIS RX YACHT or SeaClear The AIS RX YACHT is used at your own risk and it shall be remembered that AIS and GPS data depends on the full co operation of other users and systems AIS RX YACHT is a navigation aid and wo
3. OPERATION amp INSTALLATION MANUAL AIS RX YACHT Version 1 4E True Heading 2005 The manual may not in any aspect be copied without the prior authorization from True Heading AB NBWN rR 6 NN 10 11 12 REN IS STO o 3 INTRODUCTION id 4 GLOSSARY 35c56 o ee aie Minar ae oe ae eee 5 CONDITIONS Aa 6 WARRANTS 7 5 1 Cn das 7 5 2 Watrtanty conditi ns AAA A rer 7 5 3 Warranty PLOCECUICS AA A E rs RR rr rer ere rer sn en 7 5 4 CUNETA id BARNS Nee 7 A O O 8 INFORMATION AB OUT ATS ida 9 7 1 A E 9 7 2 Short technical description Of AIS iii cia 10 1 3 Limitations with AIS Aaa 11 AIS RX YACHT hennt E RE E REE E A SN ENE ANN 12 8 1 Genera description seernes E a e E as E 12 2 Techical Special aata 12 8 2 1 Electrical data A A A RIA ARCE 12 8 2 2 DA OPUS A Aa 12 8 2 3 SS seriou Se cde ory a pa ESR NA RER RIE Werden xe Seo as capa ele RSA KSR NRA SD 12 8 2 4 PMY SiC ALOT AA ies aie ce A ites atari a taki oe 12 8 2 5 e cc Dai 13 HOW TO INSTALL AIS RX YACHT Ti a 13 9 1 MLO TL 13 O 000 a a a SDR se kol sk ears a ALS ea NESS 13 9 2 1 Checking your materialena a a a A a a 14 9 2 2 PAS tale YOUR TESS VET dra abren retar delata ada 14 9 2 3 Antenna installation s ssmsssssesssrrsrrsrrresrrsrrsrsresresrrrsrrsrrsr sees rese rr rss sepatersannes 14 9 2 4 GPSantenni naiai ar iaia a ea a kaiaa 15 92 5 O toa Sebra Serene arte 16 9 2 6 PO WE A sees 18 9 2 7 Connection to PC io 19 9 2 8 Data Cal n aaia E E E ii e ee 21 OPERATIONAL GU
4. 500 and still give almost a 100 message throughput between ships that are closer to each other than 8 to 20 nautical miles In such case the system overloads targets far away will be discriminated in favor of targets close to your own ship In reality the system capacity is unlimited and allows for a large number of ships to communicate simultaneously The principle of AIS STDMA ITDMA Each Gey slot represents 26 6 I milliseconds BOKIRA The AIS of ship sends the position The same message none time procedure is slot At the same re peted by all time ft reserves ather another time slot for equipped ships the next position message Picture 2 The principle of AIS technology on the two radio channels 7 3 Limitations with AIS You should always be aware that all ship others ships and in particular pleasurecrafts fishing boats warships and some coastal stations and VTS centers not will be equipped with AIS Ships that have been mandated to carry AIS can also under certain conditions turn of there AIS equipment at the master s disgrace Therefore it is important to be aware that the information that AIS provides might not be the full and complete picture of the situation around your ship Users of AIS must also be aware that transmission of false data can occur and that this will be hazardous not only to your own ship but to other as well The user is responsible for all data that is entered into the sy
5. call sign IMO number and MMSI size this even for ships behind Island or bends that radar cannot detect AIS is used to enhance safety for life at sea improve safety and efficiency in navigation and protect the marine environment AIS information transmitted from a ship contains of three 3 different main types Static data that was programmed into the AIS equipment at installation and it only needs to be changed if the ship changes its name flag or undergoes a major refit where size or ship type is changed Dynamic data contains information that automatically is updated from ship sensors like the heading from the Gyro Position and speed from GNSS equipment Also navigational status belongs to the group of dynamic data but is updated manually by the crew and Voyage related data that manually is updated by the crew along the voyage From the start AIS some times also was refereed to as UAIS or as the 4S transponder system that meant Ship to Ship and Ship to Shore IMO adopted 1998 a performance standard for AIS within the SOLAS requirement that described in general how AIS should work Below follows a brief description of the main requirements for AIS from the performance standard e Automatically provide information to AIS land stations other ships and airborne units e g SAR helicopters about the ships identity Type of ship Position Course Speed Navigational status e g under way using engine at anchor and other safet
6. IDELINES FOR AIS RX YACHT 22 FAQ 0 cists cate rE E EE eee oe ane 26 1 REVISSION Responsible Approved 2005 05 09 Anders Bergstr m Nils Willart 2005 05 10 Anders Bergstr m Nils Willart External GPS 2005 05 17 Anders Bergstr m Nils Willart NMEA output 2005 05 23 Anders Bergstr m Nils Willart External GPS 2005 06 21 Anders Bergstr m Nils Willart External GPS INTRODUCTION 20478 TH Anders Rowte U We like to thank you for choosing True Heading AB to deliver your AIS RX YACHT AIS receiver AIS RX YACHT is a high quality AIS receiver using VHF technology and has a built in GPS receiver AIS RX YACHT can also be delivered without GPS AIS RX YACHT makes it possible to receive information from ships buoys lighthouses SAR helicopters Coastguard units Pilot boats Weather station etc that are equipped with Automatic Identification System AIS transponders It is today a requirement for all ships above 300 GT to carry AIS according to IMO SOLAS regulation This means that a large quantity of ships and other type of navigational hazards or information providers will be seen by your receiver and contribute to enhanced safety in your navigation xitlod Database KEV HSAMD 1 3 f Ans MALMOE kN orkan omv d practke ND AXE part Picture 1 Real traffic scenario between Sweden and Bornholm Denmark Arnao Ps ag A wg BNET sno A EE se CHENTNEFIYGA gt ANNF RTNER xy Paral
7. ar antenna X band 1 5 m 5 ft High efficiency engines 1 m G ft HF or VHF antennas 3 m 10 ft AC power cables with high currency I m 3 ft 4 m 3 Connect the GPS antenna cable to the AIS RX YACHT s left coaxial connector TNC as shown on the picture below GPS antenna Connection INC Picture 5 GPS antenna connection 9 2 5 VHF antenna AIS RX YACHT is not delivered with a VHF antenna as standard since requirements for the antenna and the cables can be different in various types of installations The VHF antenna is necessary for the AIS receiver to work properly VHF antennas can normally be provided by marine electronic shops True Heading can also provide a suitable package including a high quality low cost VHF antenna adapted for AIS RX YACHT Please ask for our VHF antenna or our package solutions The antenna cable type should be at least RG58C U or better The VHF antenna installation is often a compromise of the following requirements e Separation between different antennas e Free line of sight 360 degrees e Antenna height Antenna separation The AIS receiver uses frequencies in the upper part of the maritime band Normally channel 87B AIS 1 161 975 MHz and channel 88B AIS 2 162 025 MHz AIS frequencies are situated in the duplex band close to coastal stations transmit channels To avoid interference the AIS RX YACHT antenna shall be separated as much as possible from the ordinary VHF antenna The best sep
8. aration will be accomplished if the antennas are placed on different heights or placed on different sides off the mast or boat True Headings VHF splitter can also be used as an effective solution to the antenna placing Line of sight To have the best possible reception for the AIS RX YACHT the antenna shall be placed with free line of sight around the full horizon Larger objects can stop the signals from certain directions Antenna height AIS use frequencies in the maritime VHF band The area of coverage in this frequency band is almost the same as line of sight This means that the higher you put your antenna the longer range you will obtain The VHF antenna shall be of a standard marine type for full functionality off the AIS RX YACHT Antenna type Vertical radiator Antenna gain 0 3 dBd Impedance 50 ohm The VHF antenna to the AIS RX YACHT shall be placed as high as possible and with proper separation to other transmitting antenna equipment onboard A suitable solution is to use the VHF antenna splitter from True Heading that allows you to use existing VHF antenna installations if existing The VHF splitter solution will save both time and installation cost further an existing VHF antenna is normally placed already on the most favorable location onboard The VHF antenna connection shall be connected to the right connector BNC on the AIS RX YACHT as shown below DNS VHF antenna connection BNC Picture 6 VHF antenna con
9. filter any data from the external GPS hence provide you with full throughput of all transmitted data from the GPS The connection is made in the following way 54321 9876 Picture 5 Numbering of a female DB9 socket connector Picture 5 displays the numbering scheme for an extension cable s DB9 socket connectors female The associated numbering for the plug connector male is a mirror reflection of scheme showed in picture 5 The connection is made with a splitter that takes data from the GPS into the AIS RX YACHT AIS Receiver on port 3 and transmits data from the AIS RX YACHT AIS receiver to the display system on port 2 as shown in picture 6 and 7 True Heading can provide the serial cable splitter upon request Please consult GPS AIS RECEIVER DISPLAY Picture 6 The serial NMEA data from the GPS commes into the AIS on port 3 and the AIS receivers transmits AIS and GPS data to the application on port 2 Picture 7The serial cable splitter to provide both GPS and AIS data on one port 9 2 8 Connection to PC Use the included serial cable for RS232 format Connect the cable to the connector on the AIS RX YACHT and then to the PC network or plotter port If your PC does not have a serial port a Serial to USB converter can be used If another serial cable is used than the included it shall be a pin to pin connection as 2 2 3 3 5 5 Start your navigation system or plotter and set the baud rate to 38400 bit s on the seria
10. fulfill the following requirements Antenna type Vertical radiator Antenna gain 0 3 dBd Impedance 50 ohm Q Is it possible to connect my AIS RX YACHT to a plotter A Today only a few plotters are prepared to connect AIS and to display AIS targets Some of the manufacturer that supports this today is Furuno Seiwa and Interphase Garmin and some others are working on the issue and will be able to do so in coming models For further information contact your supplier and ask about AIS interface to their product Q What electronic chart programs can handle AIS today AIS A Today several software are prepared for AIS the once known to us are Adveto AECDIS series Fugawi Fugro ICAN Aldebaran Nobeltech SeaClear Transas Navisailor All software that can handle the NMEA message VDM and display the data will be able to present AIS Ask your provider for further information In addition stand alone display software is available like e g the AIS YACHT from Y tronic Q Will AIS RX YACHT work with my network solution onboard A All networks that can handle NMEA VDM data at the speed 38400 b s will be able to handle AIS data Silva and Navnet from Furuno has been told to us to be able to do so Raymarine s Seatalk will most likely not be able to handle AIS Ask your network provider for further information Q I do not have a serial port on my computer how can I then get the data from my AIS RX YACHT into the PC A Today seria
11. gvf059H 0x72 00 4 5922 2609 N 01803 2498 E 0 42 41 170505 346FUb0O101CEVOOtwp9kWrjD164 0x 24 00 4 5922 2609 N 01803 2501 E 0 33 24 170505 lATVDM 1 1 4 13u gt lt wgP001Bh4VOtawbfwvh08 gt w 0 21 9 2 9 Data cables Computers that connects to a AIS RX YACHT with a pin to pin 9 pin D sub 9DB male on the receiver side and a the equivalent on the PC side female Each pin should be connected as follows Male Female 1 1 2 2 Data output 3 3 Data input 4 4 5 5 Signal ground 6 6 7 7 8 8 9 9 10 OPERATIONAL GUIDELINES FOR AIS RX YACHT AIS RX YACHT has four 4 led indicators to help with status monitoring of the AIS receiver PWR is the abbreviation for POWER Power connected and shows with green fixed light that AIS RX YACHT is connected to power 12 VDC The led GPS indicates with a yellow flashing light that the built in GPS receiver navigates and receives position from the satellites O AIS RX YACHT lt gt D Rx 1 shows with a yellow flashing light that the AIS RX YACHT receives data on the channel AIS 1 Rx 2 shows with a yellow flashing light that the AIS RX YACHT receives data on the channel AIS 2 If Rx 1 or Rx 2 turns into a fixed or almost fixed light it means that the frequency is suffering from interference or is blocked jammed or disturbed and you need to investigate the cause of the problem AIS RX YACHT will give several possibilities to enhance the nav
12. ided in the manual and in this information sheet please consult the place where you purchased the AIS RX YACHT or direct to our support 5 2 Warranty conditions The warranty belongs to the person that purchased the product and cannot be handed over to a third party or person The warranty is not valid if serial number is missing seals broken or if the AIS RX YACHT has been incorrect installed Neither is the warranty valid if instructions for connection have not been followed faults caused by wrong usage own made modifications or service made from none authorized service stations True Heading AB acknowledges that AIS RX YACHT at delivery has been controlled and found operational True Heading AB agrees to repair or replace any faulty unit without any cost according to the conditions set forth during a period of two 2 years from day of purchase The warranty includes replacement or repair of faulty unit due to error in components or errors in relation to the production of the product The warranty covers costs for spares labor and return shipment It does not include shipment from to the repair facility True Heading AB will never be liable under the warranty conditions for incorrect use misuse and incidental indirect or consequential damages of the AIS RX YACHT Proof of purchase is required for any warranty claim of the AIS RX YACHT 5 3 Warranty procedures True Heading AB repairs and replaces faulty parts or unit
13. igational safety as a complement to e g radars and electronic charting systems The built in GPS makes the AIS RX YACHT into a complete and compact navigations system together with the included electronic chart system With an AIS receiver you will improve safety during navigation in e g low visibility or at night At sea AIS provides a support to the radar especially during rain snow and sea clutter conditions With AIS it is also possible to se behind islands and bends something that will give an idea what s behind the corner Picture 9 With AIS you can see behind island and bend Several Maritime authorities will also transmit safety related information using land based AIS networks These are messages that will contain information about e g sudden threats in fairways navigational warnings meteorological data etc Meteorological information will also be transmitted in real time from certain strategic positions along coastlines That data will contain information like Wind Speed Wind Direction Water Level Temperature Currents and Tide etc Picture 10 Meteorological data transmitted with AIS in real time AIS transponders will transmit the following data that can be received from your AIS RX YACHT Static Information Dynamic Information Voyage related Information 2 Name Position Destination Type of ship Speed Over Ground Depth Call sign Course Over Ground ETA MMSI number Rate Of Turn Navigat
14. ional Status PMO number Pleading Size Note Sometimes ships have not properly programmed their AIS transponders and parts of above mentioned information can then be missing AIS RX YACHT can without charge be provided with the electronic chart system SeaClear SeaClear is presented separately with its own user manual Below some examples of how AIS can be presented in various types of electronic chart systems or plotters At present several manufacturers can provide systems that can display AIS A list of the once known to us can be found in the chapter FAQ Picture 11 Examp le how AIS is presented in the software AECDIS from ADVETO Picture 14 Example how AIS is presented in AIS Yacht 11 FAQ Q Is it possible to use an existing VHF antenna A Yes you can use an existing VHF antenna by adding the True Heading VHF antenna splitter to the installation Then the same antenna used for VHF DSC can be used also for the AIS RX YACHT Q Can I use an existing GPS antenna A Like the VHF antenna installation a GPS signal can be divided with a splitter as well GPS splitters are available through True Heading as well Q What type of GPS and VHF antenna do I need for my AIS RX YACHT A The GPS antenna should at least fulfill the following requirements Antenna type RHCP patch or quadrifilar type Power supply 3V DC LNA gain 10 32 dB Impedance 50 ohm Connector TNC male The VHF antenna should at least
15. l port where you connect your AIS RX YACHT Note If you do not have any AIS software you can use the Hyperlink program supplied with Windows This can be found by pressing the Start button gt programs gt Accessories gt Communications gt HyperTerminal Set the com port for Baud rate 38400 Data bit 8 Parity None Stop bits 1 When you your port is set to receive data as described above you shall be able to see NMEA data for AIS called VDM according to the example below that follows normal NMEA structure lt gt NMEA Input Monitor S46FUB001R1CEjPQu0AIaGNO121 0 53 00 4 5922 2608 N 01803 2462 E 0 18 28 170505 00 4 5922 2608 N 01803 2467 E 0 10 14 170505 13u gt 2 P011BgnVOtc 7 vOVND09f 0x 45 00 4 5922 2608 N 01803 2472 E 0 17 43 170505 13u gt 5691h11BgVYDOtdHnv0fP059H 075 00 4 5922 2608 N 01803 2477 E 0 46 99 170505 00 4 5922 2608 N 01803 2482 E 0 32 67 170505 00 4 5922 2608 N 01803 2486 E 0 11 69 170505 13u gt F P011Bhon0teKYk w D0 lt B 072 00 4 5922 2608 N 01803 2490 E 0 33 30 170505 4102R3FAuEHaFFOC lt 78QsRoW0059H 042 DO2R3FAJO gt fp 035 702R5 hwCI p 0 4B 702R5 hwCI p 0 48 402R3GAuEHaFFIC8Lhot W000 lt 0 0 15 DO2R3GAIg gt fp 0 17 13u gt 519P001BgPnOtdbH lt OvbDLOE 0 70 346FUB00i1P1CEa8Qtwp917pd012h 0x 44 13B3n 0000Q0Bqe0QuaQ90bN OU9H 0 76 00 4 5922 2608 N 01803 2493 E 0 51 D04 170505 00 4 5922 2609 N 01803 2496 E 0 24 Sas OS 13u0H29P0014ktb0vvb 2
16. l to USB format converters can be found in most computer shops True Heading can also provide such converters upon request Please ask for a serial to USB converter Picture 15 Example of a serial to USB converter 12 NOTES
17. lectrical data Power 9 15 Volt DC Powerconsumption 1 5W 8 2 2 Data output Data Speed 38400 b s default Format NMEA 0183 ver 3 Out data NMEA messages VDM RMC 8 2 3 Receiver Frequency Sensitivity Antenna impedans 8 2 4 Physical data LxWxH Weight Connectors Data output port AIS1 161 975 MHz AIS2 162 025 MHz 112dBm 50 ohm 136 x 98 x 38 mm 400g Antenna BNC VHF Antenna TNC GPS 9 pin D sub connector Picture 3Size of the AIS RX YACHT 8 2 5 GPS 12 parallel cha nnels Accuracy better than 6 m 2 DRMS 9 HOW TO INSTALL AIS RX YACHT 9 1 Introduction AIS RX YACHT will be quick and simple to install You will need antenna cables and connectors for a VHF antenna not included a GPS antenna not included and power access of 12 V DC When this is in place your AIS RX YACHT can easily be connected to your PC or any other type of display system e g a plotter Please be aware that the software that you use to display AIS data must be compatible with the standard messages that AIS provides on its output data port The data output port sends serial data through a serial cable to the display systemso that AIS targets can be displayed 9 2 Installation This part describes the most important information you need to install your AIS RX YACHT receiver You should read the entire manual to get a full understanding of how to install and operate your AIS RX YACHT Please visit our webpage www t
18. nection 9 2 6 Power Connect the AIS RX YACHT to 12 V DC via a0 5A fuse The AIS RX YACHT comes with a power cable already fitted with a fuse and with a 2 pole DC connector that locks automatically when fitted Red cable is positive Black cable is negative EE When AIS RX YACHT is connected to 12 VDC the PWR POWER led indicator shall be green A eC Picture 7 Power and antenna cables connected Connection for data 9 pole Dsub Connection for power 12V DC Picture 8 Data and power connection 9 2 7 Connection to external GPS The AIS RX YACHT can be connected to an external GPS sensor to provide position data through the AIS RX YACHT AIS Receiver The internal GPS will then be automatically disconnected and remain passive until you disconnect power and restart the AIS receiver This means that you will have a back up GPS from the AIS RX YACHT If you like to connect to an external GPS this functionality is also very useful since it means that you will save one port on your display system as well as solve a the problem with having different data speeds from the GPS normally 4800 bit s and AIS 38400 bit s something that normally not will be possible into a PC Now the AIS RX YACHT automatically mixes the GPS and the AIS data and you will have a seamless throughput of data into your display system presenting own from the external GPS s received position and AIS information from the AIS RX YACHT The AIS RX YACHT will not
19. rks in co operation with other similar systems like e g radar optical lookout etc The AIS RX YACHT installation should be inspected from time to time and checked on its operational quality frequently by the user Remember that navigation and life at sea always requires proper seamanship and that the AIS RX YACHT is not a replacement for such qualities SeaClear is only a navigational aid It collects calculates and displays data for you but there is no guarantee it is correct there are many sources for errors SeaClear is not a replacement for navigational knowledge nor can it navigate by it self Use it with care Always have the original charts available when SeaClear is in use True Heading does not take any responsibility for functionality of SeaClear neither are we responsible for any charts used in conjunction with SeaClear NOT ALL VESSELS CARRY AIS IT IS THEREFORE IMPORTANT TO KEEP PROPER LOOKOUT AT ALL TIMES AND TO USE ALL AVAILABLE MEANS TO AVOID COLLISIONS AND ACCIDENTS GPS MAY FROM TIME TO TIME INCLUDE ERRORS THEREFORE THE POSITION RECEIVED FROM THE GPS BUILT IN TO AIS RX YACHT SHALL ALWAYS BE VERIFED WITH OTHER AVAILABLE MEANS 5 WARRANTY 5 1 General AIS RX YACHT is developed and manufactured to meet high technical requirements and user demands If installed correctly and with regular maintenance your AIS RX YACHT should provide you with several years of operation and a very useful product For further information prov
20. rther below The antenna cabling should be installed the shortest possible way and cable type selected depending on cable length to avoid losses All connectors should be properly connected to avoid losses and thoroughly sealed with self amalgamating rubber tape to avoid humidity in the connectors and thereby reduced functionality Quick quide for cable selection Length Cable types lt 10 mcables RG58C U gt 10 m cables RG213 U 9 2 4 GPS antenna GPS antennas shall be of active types with built in amplifier LNA AIS RX YACHT provides the built in antenna amplifier with power through the antenna cable The power supply to the antenna is 3V DC The GPS antenna needs to have the following minimum performance Antenna type RHCP patch or quadrifilar type Power supply 3V DC LNA amplifier 10 32 dB Impedance 50 ohm Connector TNC male True Heading can also provide cost efficient and product adapted GPS antennas ask for True Heading package solutions It shall be noted that the GPS antenna shall be placed with free line of sight towards the sky Do not place the antenna close to metal objects that can cause reflections or disturb the reception of the satellite signals The GPS antenna shall be placed close to Inmarsat satellite antennas or radar antennas at the S frequency band The table below shows suitable safety distances to other equipment that could cause interference with the AIS receiver Safely distance Rad
21. rueheading se for updates on manuals etc If you want your AIS RX YACHT to operate with e g monitor software your plotter or a PC based software please act as follows 9 2 1 Checking your material Check that you have received all the equipment with your AIS RX YACHT and that the delivered equipment has not been damaged during delivery If the equipment has been damaged please contact your reseller or our support 9 2 2 Installing your receiver AIS RX YACHT is made to be installed in a protected environment in door and shall therefore be placed where it is well protected from humidity and water AIS RX YACHT shall not either be placed close to generators or compressors from e g refrigerators since they can interfere with the reception Normally a suitable placement of the AIS RX Y ACHT is together with other types of navigation equipment and the PC or plotter that will be used to display the AIS data also a position close to a location where power is easy available is a good idea AIS RX YACHT also contains led indicators for power GPS reception and AIS reception on both channels therefore it is a good idea to have these indicators viewable to ensure performance and functionality AIS RX YACHT is easy to mount on the bulkhead or panels with included screws Picture 4 Measurements for the installation of the AIS RX YACHT 9 2 3 Antenna installation Install the GPS and VHF antenna at a suitable position onboard see fu
22. s The customer is responsible for transport of the defect part or unit to True Heading or its retailer Warranty claims shall be made to the place where AIS RX YACHT was purchased or direct to True Heading AB through mail fax or e mail to our support department 5 4 Other issues Proper seamanship and common sense is applicable when using AIS RX YACHT and the products shall only be seen as a navaid True Heading AB keeps the right to change the specification of the product without prior notice IF YOU ARE NOT ABLE TO ACCEPT THE TERMS ABOVE PLEASE RETURN THE AIS RX YACHT TO YOUR RETAILER FOR FULL CREDIT BEFORE OPENED AND USED 6 SUPPORT If you need support please contact the closest reseller or the location where you acquired the product The manufacturer can also give support direct Email support trueheading se or Fax 46 8 6618020 Please register your purchase of AIS RX YACHT with True Heading AB by sending an e mail to register trueheading se stating the serial number date of purchase your name address and your dealer s name 7 INFORMATION ABOUT AIS 7 1 General AIS Automatic Identification System is the name of a system that makes it possible for ships to identify other ships and to monitor ship movements The reason for implementing the AIS system is for the mariner to obtain more information about ships in the vicinity than what radar is able to provide AIS gives e g information about a ships identity name
23. stem and for information provided by external sensors The accuracy of received AIS data is only as good as the information transmitted from the source of information You should always be aware that wrong configured or calibrated ship sensors positions speed or heading sensors could lead to that wrong information will be transmitted Dangerous situations can occur if fauly information is shown on another ship 8 AIS RX YACHT 8 1 General description With your AIS RX YACHT you will be able to see other ships that has been equipped with AIS and comes within your VHF coverage area Information transmitted is e g name on the ship call sign Heading Speed Course Destination and Type of ship AIS RX YACHT complies to the NMEA0183 and IEC 61162 1 standards and can be connected to all kind of ECS or radar system that supports these formats and has the capacity to display AIS targets and data The installation is quick and easy since it only requires power connection a VHF antenna and GPS antenna and then a data cable to your display system and proper setup of the same AIS RX YACHT is a very good complement to radar since ships carrying AIS will be easy to identify on the radar screen 8 2 Technical specification AIS RX YACHT is a compact two channel receiver with a synthesized VHF receiver that operates in the maritime VHF frequency band It has been designed to receive and decode transmissions from other AIS transceivers 8 2 1 E
24. y related information of importance Be able to receive the same type of information from other ships Be able to monitor and track other ships e Exchange information with land based AIS systems AIS is an automatic system that continuously and simultaneously transmits on two channels in the maritime VHF frequency band AIS can handle several reports in a rapid consecutive flow To accomplish these AIS uses a technique called Self Organized Time Division Multiple Access SOTDMA that guarantees high transmission safety and operational robustness AIS also allows for other types of information from e g sensors like Gyro GPS and echo sounders etc to be transmitted automatically Important areas where AIS is used are e Information exchange between ships within VHF range normally 20 30 NM to enhance safety at sea and to improve situation awareness e Information exchange between ships and AIS land stations as e g a VTS that controls and monitors maritime traffic in an area e Automatic reporting in areas with mandatory reporting of different kinds e Exchange of safety related information between ships and between ships and land stations e Services like e g meteorological information in real time from areas of importance identity and position of floating and fixed aids to navigation to improve identification and navigation 7 2 Short technical description of AIS AIS operates primarily on two dedicated VHF frequencies AIS1
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