Callsign:	MBOF4
MMSI number:	232010157
IMO number:	514755
Navigational status:	Under way (engine) (0)
Vessel class:	Pleasure (37)
Location:	50°48.10' N 1°07.39' W - locator IO90KT52FJ - show map 2.3 km West bearing 277° from Portsmouth, City of Portsmouth, England, United Kingdom [?] 6.5 km Southwest bearing 220° from Cosham, City of Portsmouth, England, United Kingdom 104.9 km Southwest bearing 222° from London, Greater London, England, United Kingdom 106.8 km Southwest bearing 223° from City of London, Greater London, England, United Kingdom
Last position:	2025-08-25 16:14:30 UTC (7d 47m ago) 2025-08-25 17:14:30 BST local time at Portsmouth, United Kingdom [?]
Course:	360° – heading 511°
Speed:	0 km/h
Dimensions:	length 15 m width 4 m draught 0.0 m
Last path:	MBOF4>ais via K9WK
Positions stored:	957

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.