Callsign:	MDUB8
MMSI number:	235015483
Navigational status:	Undefined/default (15)
Vessel class:	Sailing (36)
Location:	50°48.00' N 1°07.24' W - locator IO90KT51MX - show map 2.1 km West bearing 273° from Portsmouth, City of Portsmouth, England, United Kingdom [?] 2.6 km West bearing 290° from Southsea, 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:	2025-07-22 09:43:24 UTC (3d 20h8m ago) 2025-07-22 10:43:24 BST local time at Portsmouth, United Kingdom [?]
Course:	360° – heading 511°
Speed:	0 km/h
Dimensions:	length 11 m width 4 m draught 0.0 m
Last path:	MDUB8>ais via G7RUH
Positions stored:	1872

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.