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JSignal

SIGINT toolkit · In development

JSignal replaying recorded ADS-B traffic over Venice — A departure out of Venice Marco Polo, replayed from the recorded history.

JSignal is a self-hosted toolkit to capture radio signals with an SDR, analyze them and keep their history.

Protocols

ADS-B: aircraft on 1090 MHz, tracked by ICAO24
AIS: vessels on the marine VHF band, tracked by MMSI

JSignal replaying recorded AIS traffic in the Venice lagoon — The same player on AIS: a tanker leaving Marghera down the Malamocco channel.

Architecture

adsb-module (C++) — decodes Mode S at 1090 MHz, publishes JSON to MQTT.
ais-module (C++) — decodes AIS on the marine VHF band, publishes JSON to MQTT.
jsignal-be (Spring Boot) — records the MQTT traffic to PostgreSQL, serves the history over REST.
jsignal-fe (Flutter) — desktop console: live map, contact table, history playback.

The JSignal contacts table, listing tracked vessels — The contacts table during an AIS replay.

Status

In active development. All captures on this page are my own, from the Venice lagoon.

Planned: RF drone detection with direction finding, and ATAK-CIV support.

Sourcejaggornaut/jsignal →