Callsign:	MKRJ4
MMSI number:	235100165
IMO number:	728878
Navigational status:	Under way (engine) (0)
Vessel class:	Sailing (36)
Location:	50°50.57' N 1°06.04' W - locator IO90KU72VG - show map 5.7 km North bearing 21° from Gosport, Hampshire, England, United Kingdom [?] 5.7 km North bearing 350° from Southsea, City of Portsmouth, England, United Kingdom 100.4 km Southwest bearing 223° from London, Greater London, England, United Kingdom 102.4 km Southwest bearing 224° from City of London, Greater London, England, United Kingdom
Last position:	2025-11-26 16:17:20 UTC (8d 17h42m ago) 2025-11-26 16:17:20 GMT local time at Gosport, United Kingdom [?]
Course:	360° – heading 511°
Speed:	0 km/h
Dimensions:	length 11 m width 3 m draught 0.0 m
Last path:	MKRJ4>ais via G7RUH
Positions stored:	2070

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.