Free worldwide APRS-IS map. Track ham radio callsigns, find stations near you, send APRS messages from the web. Live feed in 11 languages, no login required.
APRS (Automatic Packet Reporting System) is a real-time digital communications protocol used by licensed amateur radio operators to share position, weather, telemetry and short messages over VHF/UHF and HF radio. Stations beacon their location every few minutes; that data is gateway'd into APRS-IS, the global Internet backbone, where any client — including this map — can render it live.
Type any amateur radio callsign in the search bar (e.g. W1ABC, DL1XYZ, JA1XYZ). The map flies to the station's last known position, shows hop trail to the gateway, and surfaces the recent beacon log, weather samples, and telemetry charts.
Every Thursday (UTC), hundreds of operators across 50+ countries check in to the HOTG net by sending CQ HOTG to ANSRVR. APRS World tracks the live APRSThursday leaderboard — country counts, top participants, archive of past Thursdays.
CQ HOTG
With a free account and an APRS-IS passcode — generate one with the APRS passcode generator — you can send messages directly from the browser to any APRS-capable station, no radio required.
See the hardware guide for APRS-capable radios and TNCs (Yaesu FT-2D/FT-3D/FT-5D, Kenwood TH-D74/TH-D75, Mobilinkd TNC3/TNC4) and the per-region frequency table (144.390 MHz Americas, 144.800 MHz Europe, 144.660/144.640 MHz Japan).
Reference guides for APRS live in the APRS guides library — start with What is APRS?, then the practical ones: APRS frequencies by country, APRS symbols explained, the APRS passcode, and running an iGate.
All APRS stations · APRS symbols · APRS passcode generator · APRS packet decoder · APRS rounds · APRSThursday leaderboard · APRS hardware picks · APRS devices census · APRS guides · Get the mobile app · Switching from APRSdroid · System status · About APRS World · Credits · Privacy · Terms
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Free worldwide APRS map. Track ham radio callsigns, find stations near you, send APRS messages from the web. Live APRS-IS feed in 11 languages.
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