Callsign:	PB4 (
MMSI number:	244690529
IMO number:	124794
Navigational status:	Under way (engine) (0)
Vessel class:	(0)
Destination:	GORINCHEM
Location:	52°03.49' N 5°06.64' E - locator JO22NB33GW - show map 7.5 km Southwest bearing 220° from De Bilt, Gemeente De Bilt, Utrecht, Netherlands [?] 9.1 km Southwest bearing 247° from Zeist, Gemeente Zeist, Utrecht, Netherlands 38.2 km Southeast bearing 157° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands 45.8 km East bearing 71° from Rotterdam, Gemeente Rotterdam, South Holland, Netherlands
Last position:	2026-01-19 08:26:59 UTC (10d 3h18m ago) 2026-01-19 09:26:59 CET local time at De Bilt, Netherlands [?]
Course:	201° – heading 511°
Speed:	4 km/h
Dimensions:	length 50 m width 7 m draught 0.0 m
Last path:	PB4 (>ais via pa2dx
Positions stored:	6163

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.