Callsign:	GDIF
MMSI number:	235009490
IMO number:	126704
Navigational status:	Under way (engine) (0)
Vessel class:	Sailing (36)
Location:	50°47.36' N 1°07.31' W - locator IO90KS59JK - show map 2.4 km Southwest bearing 243° from Portsmouth, City of Portsmouth, England, United Kingdom [?] 7.6 km Southwest bearing 213° from Cosham, City of Portsmouth, England, United Kingdom 105.9 km Southwest bearing 221° from London, Greater London, England, United Kingdom 107.8 km Southwest bearing 222° from City of London, Greater London, England, United Kingdom
Last position:	2025-08-07 15:04:54 UTC (22d 21h38m ago) 2025-08-07 16:04:54 BST local time at Portsmouth, United Kingdom [?]
Course:	92° – heading 511°
Speed:	0 km/h
Dimensions:	length 11 m width 4 m draught 0.0 m
Last path:	GDIF>ais via G7RUH
Positions stored:	7093

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.