Jūsų krepšelis yra tuščias
Jūsų krepšelis yra tuščias
The marine Automatic Identification System (AIS) is a location and vessel information reporting system. It allows vessels equipped with AIS to automatically and dynamically share and regularly update their position, speed, course and other information such as vessel identity with similarly equipped vessels. Position is derived from the Global Positioning System (GPS) and communication between vessels is by Very High Frequency (VHF) digital transmissions. There are a number of types of AIS device as follows:
Class A transceivers. These are similar to class B transceivers, but they are designed to be fitted on large vessels such as cargo ships and large passenger vessels. Class A transceivers transmit at a higher VHF signal power than class B transceivers and therefore can be received by more distant vessels, and also transmit more frequently. Class A transceivers are mandatory on all vessels over 300 gross tonnes on international voyages and certain types of passenger vessels under the SOLAS regulations.
Class B transceivers. Similar to class A transceivers in many ways, but are normally lower cost due to the less stringent performance requirements. Class B transceivers transmit at a lower power and at a lower reporting rate than class A transceivers.
AIS base stations. AIS base stations are used by Vessel Traffic Systems to monitor and control the transmissions of AIS transceivers.
Aids to Navigation (AtoN) transceivers. AtoNs are transceivers mounted on buoys or other hazards to shipping which transmit details of their location to the surrounding vessels.
AIS receivers. AIS receivers will generally receive transmissions from class A transceivers, class B transceivers, AtoNs and AIS base stations but do not transmit any information about the vessel on which they are installed.
Static and dynamic vessel data There are two categories of information transmitted by an AIS transceiver: static and dynamic data. The vessel’s dynamic data, which includes location, speed over ground (SOG) and course over ground (COG), is calculated automatically using the installed AIS antenna. Static data is information about the vessel which must be programmed into the AIS transceiver. This includes: •Maritime Mobile Service Identity (MMSI) •Vessel name •Vessel call sign (if available) •Vessel type •Vessel dimensions In most countries the operation of an AIS transceiver is included under the vessel’s marine VHF licence provisions. The vessel on to which the AIS unit is to be installed must therefore possess a current VHF radiotelephone licence which lists the AIS system, vessel Call Sign and MMSI number.
Adjacent Channel Selectivity/ Intermodulation Rejection | ≥70 dB / ≥70 dB |
Sensitivity | 12dB SINAD dBuV ≤-6 (EMF) |
Spurious Response Rejection | ≥70 |
DSC Class | Class〝D〞(EN301025) |
Operating Temperature | -20°C To + 50°C (US), -15°C To + 55°C (EU) |
Product Width [mm] | 180 |
Product Height [mm] | 96 |
Product Depth [mm] | 156 |
Spurious Emissions [dBc] | ≤0.25 uW |
Power Consumption | +13.6 V DC (negative ground) |
127250 | Vessel Heading |
127258 | Magnetic Variation |
129025 | Position, Rapid Update |
129026 | COG & SOG, Rapid Update |
129029 | GNSS Position Data |
129033 | Time & Date |
129038 | Class A position report (Rx,Tx) |
129039 | Class B position report (Rx,Tx) |
129040 | Class B extended position report (Rx, Tx) |
129041 | AIS Aids to Navigation (AtoN) Report |
129283 | Cross Track Error |
129284 | Navigation Data |
129285 | Navigation Route/WP Information |
129792 | DGNSS Broadcast binary message (Tx) |
129793 | UTC and date report (Tx) |
129794 | Class A static and voyage related data (rx, tx) |
129795 | Addressed binary message (tx) |
129796 | Acknowledge (tx) |
129797 | Binary broadcast message (tx) |
129798 | SAR Aircraft Position report (tx) |
129799 | Radio Frequency/Mode/Power |
129800 | UTC/Date enquiry (tx) |
129801 | Addressed safety msg (rx,tx) |
129802 | Broadcast safety msg (rx,tx) |
129803 | Interrogation (tx) |
129804 | Assignment Mode Command (tx) |
129805 | Data Link Management message (tx) |
129807 | AIS Group Assignment |
129808 | DSC Call Information |
129809 | AIS Class B “CS” Static Data Report, Part A |
129810 | AIS Class B “CS” Static Data Report, Part B |
130074 | Route and WP Service - WP List - WP Name & Position |
130842 | AIS and VHF Messages (Simrad Proprietary for AIS Class B ‘CS’) |