Callsign:	DC4939
MMSI number:	211647710
Navigational status:	Moored (5)
Vessel class:	Port tender (53)
Location:	50°21.94' N 7°36.00' E - locator JO30TI17XS - show map 1.7 km North bearing 360° from Koblenz, Rheinland-Pfalz, Germany [?] 3.1 km Southwest bearing 230° from Urbar, Rheinland-Pfalz, Germany 78.0 km Southeast bearing 144° from Köln (Koeln), Regierungsbezirk Köln, North Rhine-Westphalia, Germany 81.8 km West bearing 290° from Frankfurt am Main, Regierungsbezirk Darmstadt, Hesse, Germany
Last position:	2025-12-09 20:06:49 UTC (4h20m ago) 2025-12-09 21:06:49 CET local time at Koblenz, Germany [?]
Course:	216.100006° – heading 511°
Speed:	0 km/h
Dimensions:	draught 2.1 m
Last path:	DC4939>ais via DG8JT
Positions stored:	723

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.