Callsign:	EI-ZK-4
MMSI number:	250006552
Navigational status:	Undefined/default (15)
Vessel class:	Sailing (36)
Location:	54°06.81' N 4°56.21' W - locator IO74MC77NF - show map 12.5 km West bearing 285° from Port Erin, Isle of Man [?] 29.8 km West bearing 262° from Douglas, Isle of Man 83.0 km Southeast bearing 129° from Belfast, City of Belfast, N Ireland, United Kingdom 122.3 km Northeast bearing 44° from Dublin, Dublin City, Leinster, Ireland
Last position:	2025-06-23 09:49:21 UTC (32d 19m ago) 2025-06-23 10:49:21 BST local time at Port Erin, Isle of Man [?]
Course:	232°
Speed:	6 km/h
Dimensions:	length 14 m width 5 m draught 0.0 m
Last path:	EI-ZK-4>ais via GD4RVQ
Positions stored:	11

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.