Callsign:	PB5900
MMSI number:	244670905
Vessel class:	Sailing (36)
Location:	52°10.10' N 4°17.79' E - locator JO22DE50NJ - show map 8.0 km Southwest bearing 241° from Katwijk aan Zee, Gemeente Katwijk, South Holland, Netherlands [?] 9.0 km West bearing 252° from Katwijk aan den Rijn, Gemeente Katwijk, South Holland, Netherlands 30.0 km Northwest bearing 336° from Rotterdam, Gemeente Rotterdam, South Holland, Netherlands 46.4 km Southwest bearing 241° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands
Last position:	2025-07-23 09:43:21 UTC (194d 12h38m ago) 2025-07-23 11:43:21 CEST local time at Katwijk aan Zee, Netherlands [?]
Course:	17° – heading 511°
Speed:	11 km/h
Last path:	PB5900>ais via Southwood
Positions stored:	6

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.