Paste any raw APRS packet in TNC2 format and see exactly what every byte means - the sending station, its path across the network, the coordinates, the symbol, and any weather, telemetry, or message it carries. Everything is decoded in your browser.
The simulator replays the same journey a real beacon takes: radio, digipeater, iGate, q-construct, APRS-IS.
How APRS packets travel: RF to APRS-IS · The APRS message protocol