Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station DM3RS-B - show graphs
Comment: Robert on tour
Location: 50°58.60' N 7°00.29' E - locator JO30MX04NJ - show map
1.5 km North bearing 360° from Köln-Mülheim (Koeln-Muelheim), North Rhine-Westphalia, Germany [?]
3.8 km North bearing 358° from Köln-Kalk (Koeln-Kalk), North Rhine-Westphalia, Germany
6.2 km Northeast bearing 39° from Köln (Koeln), Regierungsbezirk Köln, North Rhine-Westphalia, Germany
152.2 km Northwest bearing 310° from Frankfurt am Main, Regierungsbezirk Darmstadt, Hesse, Germany
Last position: 2025-12-09 05:15:25 UTC (2m33s ago)
2025-12-09 06:15:25 CET local time at Köln-Mülheim, Germany [?]
Altitude: 52 m
Device: Icom: IC-5100 (D-Star)
Last path: DM3RS-B>API510 via DSTAR*,qAR,DB0TUV-B (good)
Positions stored: 491
Other SSIDs: DM3RS-A DM3RS-C
About this site
This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS