![]() Examples of AIS received with RTL-SDRĪn AIS radar example is shown by YouTube user Vinicius Lenci with the rtl-sdr, SDRSharp and ShipPlotter. Note, tracking ships with AIS is very similar to tracking aircraft with ADS-B, which is another project that may interest you. This guide is intended for land based scanner hobbyists. Safety Warning: This probably should not be used a navigational aid on a boat as the field reliability of the rtl-sdr or other software radios is not proven. Most parts of this tutorial are also applicable to other software radios, such as the funcube dongle and HackRF, or even regular hardware scanners if a discriminator tap is used, but the rtl-sdr is the cheapest option. This tutorial will show you how to set up an AIS receiver with the rtl-sdr. A radio scanner or the cheap rtl-sdr software defined radio can be used to receive these signals, and with the help of decoding software, ship positions can be plotted on a map. There are dedicated AIS receivers intended to be used on boats, or by hobbyists, but they can be expensive. This system is known as the “Automatic Identification System” or AIS for short. Large ships and passenger boats are required to broadcast an identification signal containing position, course, speed, destination, and vessel dimension information to help prevent sea collisions.
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