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name: gdl90-adsb description: GDL 90 protocol implementation for ADS-B receivers. Use when decoding traffic data from Stratux, ForeFlight Sentry, or other GDL 90 compatible devices. Includes message decoders, traffic simulators, and receiver client implementations.

GDL 90 ADS-B

Overview

Parse and encode GDL 90 protocol messages for ADS-B receiver integration.

Message Types

Quick Start

Decode GDL 90 Stream

Copyfrom gdl90_decoder import GDL90Decoder

decoder = GDL90Decoder()

# From UDP socket
with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
    sock.bind(('', 4000))
    while True:
        data, addr = sock.recvfrom(4096)
        messages = decoder.decode(data)
        for msg in messages:
            if msg['type'] == 'traffic':
                print(f"Traffic: {msg['callsign']} at {msg['altitude']} ft")

Connect to Stratux

Copyfrom stratux_client import StratuxClient

client = StratuxClient('192.168.10.1')
client.connect()

for traffic in client.get_traffic():
    print(f"{traffic['icao']}: {traffic['lat']}, {traffic['lon']}")

Generate Test Traffic

Copyfrom traffic_simulator import TrafficSimulator

sim = TrafficSimulator()
sim.add_aircraft('N12345', lat=33.94, lon=-118.40, alt=5000, hdg=270)
sim.start(port=4000)

References

• GDL 90 message specifications: references/message_types.md
• FIS-B weather products: references/fisb_products.md
• Stratux extensions: references/stratux_extensions.md

Scripts