Android AIS receiver for RTL SDR dongles, Airspy R2, Airspy Mini, Airspy HF+ and TCP (RTL-TCP and SpyServer). Output is send via UDP and visualized on the built-in map

Library for AIS messages

AISMixer — AIS NMEA-0183 multiplexer/deduplicator/forwarder. Merges multiple AIVDM/AIVDO streams, de-duplicates sentences, reconstructs multipart via g, and applies configurable tag policy on egress: preserve/normalize/overwrite s (source), c (timestamp), g (group). Secure UDP with ECDSA.