Cover your Area

Start immediately seeing marine traffic in your area! Just install an AIS receiver and send us your data through any Internet connection.

Why cover my Area?
Am I located in a proper area?
What equipment and software do I need?
Can I avoid using a computer?
I am already using Shipplotter software. How can I contribute?
I already have a wideband or a VHF receiver. Can I use it to collect AIS data?
I wish to share my data with other services as well
Put a Live map of your area in your web site
Watch the coverage and reception statistics of your station
How much will it cost me?
My ship already has an AIS transponder. Can I use it to collect and send AIS data?
How much Bandwidth will the AIS data feed consume?
Need Help?

Why cover my Area?

Am I located in a proper area?

Any sea or inland waters area in the world can be covered and shown on the real-time map. If you are located near an uncovered sea area (up to 10 miles from sea or more if at a high altitude), near a harbor or on top of a mountain (!) and you have a computer and any Internet connection always online, then you may start installing your AIS station.
The most important factors (but not mandatory) for a good reception is the elevation (height from sea level – the higher the better) of your location and the clear view to the horizon, without obstacles.

What equipment and software do I need?


A typical base AIS station is shown on the picture above. Obtain and connect to your PC an AIS receiver with an external VHF antenna and send the collected data through your Internet connection. In detail:

1. You need an AIS receiver.
You may buy one from a local marine electronics shop or you may order one from an online shop. In case you are located in an area of special interest (high traffic port or area, canal, high altitude, etc.) which is not alreday covered, we will try to provide an AIS Receiver for free.
We have tested the following devices with our software, with similar results:
If you are not sure whether your location is suitable for AIS data reception and thus you do not want to buy a device, we can lend you an AIS receiver unit, to try it. You will have to return it to us within one month.

2. You need a VHF antenna.
Any marine VHF antenna is suitable for AIS reception. A 5/8 type antenna seems to be better for a base station (see 1st picture). For a little better results you may get an high-gain VHF antenna (e.g. a 3 x 5/8 aerial) or an antenna specially designed for AIS, such as the "Shakespeare 396-1-AIS" or the DPDP AIS antenna. Install the antenna at the highest possible point of your building.
If you feel you can build your own handcrafted antenna, then you have many better options. Since in most cases the sea is not located around us but towards one direction, it is a very good idea to construct a directional (Yagi) antenna pointing to the sea (see 2nd picture). You can calculate the length of the antenna elements at this site: http://www.k7mem.150m.com/Electronic_Notebook/antennas/yagi_vhf.html (Remember to enter frequency 162 MHz). You may also try a custom made "Collinear" AIS antenna.
: A 5/8 VHF Antenna  : An array of two Yagi AIS antennas

3. You need a cable and the relevant connectors to connect the antenna with the receiver. The best choice for this cable is the RG-213 type. If the distance is shorter than 5 meters you may also use the cheaper RG-58 type. In any case, the length of the antenna cable must be kept as short as possible. You will also need a serial cable (a common RS-232 serial connection cable) to connect the AIS receiver with the computer. We have successfully tested a 15-meter serial cable, so we were able to place the receiver very close to the antenna, while the PC was 2 floors lower.

4. You need a software
You need to download a simple software for processing and uploading data to the central database.
We provide a simple windows-based service program that runs on the background or in the foreground if you wish to keep an eye on it. It requires the existence of the Microsoft .NET 2.0 framework (if you do not have it already, you will be prompted to download it during the software installation).
Download the "AIS Logger" Software (zip file, about 0.3 MB)
Installation Notes:Run the installation package AisServiceSetup.msi and follow the steps until the end. The software requires the Microsoft .NET framework, which will be downloaded during the installation if you do not already have it. 
A windows service will be installed (named AIS Logger). Locate the service in (Right click) My Computer --> Manage --> Services. Configure the service to start Automatically and start the service. If you wish to see the AIS data collected and processed, check the option 'Allow service to interact with the desktop' at the 'Log on' tab, before starting the service (if you do so, please note that the program will stop when you log-off from windows). 
In order to configure AISlogger (COM port used, destination IP and port, etc.), please locate the folder where the software is installed (normally C:\Program Files\DPSD\AisServiceSetup). Open the file named aisclient.exe.config with a text editor (notepad or wordpad). Locate the settings for ‘comport’, ‘udpport1’, etc. and change the values as necessary.

Alternatively, you may use one of the following programs:
- AIS Dispatcher (Thanks to 'AIS Hub' - Just extract the contents of the 'zip' and run program. - linux version also available)
- Shipplotter (requires registration fee)

That’s all! Start seeing vessels in your area! Ask us to put in our our site a direct link to your area.

Can I avoid using a computer?

Yes! and this is the simplest and most robust solution, since you will not have to keep a PC and a software running. You will be also able to place the receiver very close to the antenna, even if the network port is 100 meters away. In order to process and send us your collected data without using a computer, you may use a receiver with an 'Ethernet' interface, which connects directly to the network (see the receiver COMAR SLR200Ν (~550 €). Alternatively, if your receiver has a serial port, then you may use a serial-to-ethernet converter that collects the data from the serial port of the AIS receiver and sends them directly to our server. In both cases, it is not necessary to use a computer and the "AIS Logger" software to send the collected data to the central server.
We have successfully tested the 'Digi One SP' Serial to Ethernet Converter (~ 150 €)
and the 'Netcom 10S' RS-232 to Ethernet Converter (~ 70 €)
The converter must be configured to send the data directly to the address '195.251.168.18', UDP port 5321. Please contact us if you need further support on this.

I am already using Shipplotter software. How can I contribute?

If you have already a receiving station and you are using the ShipPlotter software to process and publish your data, then you may easily send us your data without interrupting at all your current setup. Just configure the ShipPlotter to additionally send the data to our server.
Go to 'I/O settings' and locate the 'UDP peer-to-peer output section'. Enable the output to Remote IP '195.251.168.18', Remote port 5321. That's all.

I already have a wideband or a VHF receiver. Can I use it to collect AIS data?

If you already have a wideband receiver or a marine VHF radiotelephone, it is possible to use it to collect AIS data and send them to the central server, without buying a specialized AIS receiver. You have to follow the steps below:

I wish to share my data with other services as well

Most receivers and converters are not able to send your data to multiple destinations, but we can do it for you. If you wish to share your raw AIS data feed with other services, except MarineTraffic, we can forward your data to any requested destination. All we need is the destination IP address, port number and protocol (TCP or UDP).

Embed a Live Map of your area in your web site

If you wish, you may put a part of our map that covers your area in your own web site. It is very easy to do this by inserting the following code line into the HTML of your web page, at the point where the map will be displayed:
<script type="text/javascript" src="http://www.marinetraffic.com/ais/embed.js"></script>

or if you wish to configure the dimensions of the map, the centered area, the zoom level and even a vessel you wish to observe, use the following code and adjust the default values accordingly:
<script type="text/javascript">
        width='80%';          //the width of the embedded map in pixels or percentage
        height=400;         //the height of the embedded map in pixels or percentage
        border=1;           //the width of border around the map. Zero means no border
        notation=false;     //true or false to display or not the vessel icons and options at the left
        shownames=false;    //true or false to dispaly ship names on the map
        latitude=37.4460;   //the latitude of the center of the map in decimal degrees
        longitude=24.9467;  //the longitude of the center of the map in decimal degrees
        zoom=9;             //the zoom level of the map. Use values between 2 and 17
        maptype=3;          //use 0 for Normal map, 1 for Satellite, 2 for Hybrid, 3 for Terrain
        trackvessel=0;      //the MMSI of the vessel to track, if within the range of the system
        fleet='';           //the registered email address of a user-defined fleet to display
        remember=false;     //true or false to remember or not the last position of the map
</script>
<script type="text/javascript" src="http://www.marinetraffic.com/ais/embed.js"></script>

The following map is generated by the above sample code:



Watch the coverage and reception statistics of your station

You may register your AIS station in the Stations List and thus reserve a unique ID for your data. Ship positions coming from your station will be distinguished by a unique ID (a number appearing next to the word 'Received()' within the info window of a ship).
You will be then able to watch daily and long-term statistics on signal propagation, number of vessels received, as well as a coverage map. See an example here:
Reception Statistics of Station No.2
Coverage map of Station No.2

How much will it cost me?

You will have to buy your own AIS receiver (indicative prices shown previously) and to spend no more than 80 euro for the antenna and the cables. We assume also that you already have an Internet connection and a PC in case you are using an AIS receiver with serial interface (anything with windows 2000, XP, Vista, with more than 256MB of RAM would be fine). In exceptional cases (e.g. areas of special interest, installations on top of mountains, etc.) we will try to provide an AIS receiver from our own resources. If however you are a vendor or merchant of AIS equipment, a donation of equipment (AIS receivers) will be more than welcome.
Get an AIS receiver for Free!

My ship already has an AIS transponder. Can I use it to collect and send AIS data?

Yes, this is possible if your vessel has a satellite Internet connection. This would be a very interesting idea as it would enable long-range coverage in every sea route of the world! AIS transponders already installed on most vessels can be used as ‘mobile’ AIS receiving stations. These stations collect and export AIS information about the vessel’s own positions and about all the nearby ships.

If your vessel has a satellite Internet connection onboard, then the collected signals can be easily sent to our central server, with no additional cost or equipment. It would be therefore possible to see vessels on the real-time map, not only near shores but anywhere in the world. For example, a ship crossing the Atlantic will be constantly transmitting its own positions and all positions of ships sailing around it (in a range of 30-40 n.miles) in every location, even where no shore reception is possible.

Here are some basic instructions to implement the 'onboard' AIS data collection:

  1. The prerequisite to implement this solution is a PC with an Internet connection onboard. 
  2. The program 'AIS Logger' must be installed in the PC, as described here. Alternatively, the 'AIS Dispatcher' program may be used, which has the possibility to reduce the bandwidth used. 
  3. The serial output of the AIS transponder of your vessel must be connected to the serial port of the PC. Since the cabling of the serial connection depends on the type of your AIS transponder, please refer to its installation manual for more information. As an example, you may find here a proposed cabling for AIS transponders Furuno FA-100 and FA-150.

How much Bandwidth will the AIS data feed consume?

AIS messages are very small (~50 bytes for each position report) and the bandwidth needed is just a small fraction of any ADSL or dial-up line. However a lot of data can be accumulated over time, especially in high-traffic areas. If you are using an on-board satellite connection, bandwidth could be costly.

Here is a rough estimation:
Say there are 30 vessels in your range.
Each vessel transmits its position 10 times per minute on average.
Each message is about 50 bytes long.
That means that there is a transmission of 30*10*50*60 = 0.9 Mbytes per hour or 2Kbps.

If you require to reduce the data transmitted over the Internet you may use the program 'AIS Dispatcher' as described earlier. This program can be configured to 'downsample' the rate of transmitted messages. For example, an interval of 60 seconds means that only one message for each vessel will be transmitted within one minute. A 2-3 minute interval would be sufficient for our application and it would dramatically decrease the bandwidth used.


Need Help?

We can support you to build your AIS station. Do not hesitate to send us an email at marinetraffic@aegean.gr. You may also find an answer in the Frequently Asked Questions.