Callsign:	PH4581
MMSI number:	246581000
IMO number:	73311
Navigational status:	Under way (engine) (0)
Vessel class:	(99)
Destination:	(ETA ***00 24:60)
Location:	51°41.27' N 4°36.21' E - locator JO21HQ25JC - show map 7.3 km Southeast bearing 150° from Strijen, Gemeente Strijen, South Holland, Netherlands [?] 14.0 km West bearing 261° from Drimmelen, Gemeente Made en Drimmelen, North Brabant, Netherlands 78.7 km South bearing 195° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands 94.7 km North bearing 11° from Brussels, (Bruxelles-Capitale), Brussels Capital Region, Belgium
Last position:	2025-07-30 15:17:07 UTC (2h ago) 2025-07-30 17:17:07 CEST local time at Strijen, Netherlands [?]
Course:	174.0° – heading 259°
Speed:	2 km/h
Dimensions:	length 24 m width 6 m draught 0.0 m
Last path:	PH4581>ais via IC8FGU
Positions stored:	35201

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.