It is an Android app that decodes AIS messages transmitted by vessels , ships, over radio using a cheap USB DVB-T / RTL-SDR stick.
AIS messages are transmitted over VHF. Channel A: 161.975 MHz Channel B: 162.025 MHz. The app decodes both channels simultaneously. This app needs no internet connection, it decodes the real time received messages. This is a truly standalone full featured AIS receiver.
The received messages will be translated into NMEA0183 strings which can be forwarded then via UDP or TCP streaming to third-party apps, PC programs or other devices. Such Apps can display the received AIS data for example on a map along with information about the received objects.
Please note: The app needs additional (very cheap) hardware to receive the radio signals.
I live by the river. Especially in summer time sitting at the terrace and seeing all this nice river cruise ships travelling by, it comes to my mind, that it could be interesting to know a little bit more about these ships. At this time I knew about the possibility of tracking live airplane positions, but for ships? Soon I also found some similar pages in the internet, where you can watch vessel positions – but my region wasn’t covered. So i investigated a little bit more time and I found the amazing blog http://www.rtl-sdr.com/. The blog is absolute fantastic; showing several different applications what can be done with a so called RTL-SDR dongle. So in august 2015 I created a first Android app for decoding AIS ship positions.
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.