Callsign:	PB3973
MMSI number:	244740129
Navigational status:	Under way (engine) (0)
Vessel class:	Pleasure (37)
Destination:	LEMMER
Location:	53°02.56' N 5°45.80' E - locator JO23VB10OF - show map 4.3 km Southwest bearing 207° from Jirnsum, Gemeente Boarnsterhim, Friesland, Netherlands [?] 4.6 km West bearing 259° from Akkrum, Gemeente Boarnsterhim, Friesland, Netherlands 94.8 km Northeast bearing 38° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands 146.0 km Northeast bearing 42° from Den Haag, Gemeente ’s-Gravenhage, South Holland, Netherlands
Last position:	2025-10-03 15:17:07 UTC (130d 11h3m ago) 2025-10-03 17:17:07 CEST local time at Jirnsum, Netherlands [?]
Course:	237° – heading 511°
Speed:	12 km/h
Dimensions:	length 21 m width 6 m draught 1.7 m
Last path:	PB3973>ais via pa2dx
Positions stored:	1513

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.